diff --git a/Android.mk b/Android.mk
index 4a7afb7..2943f01 100644
--- a/Android.mk
+++ b/Android.mk
@@ -159,8 +159,8 @@
     $(LOCAL_PATH)/applypatch/Android.mk \
     $(LOCAL_PATH)/bootloader_message/Android.mk \
     $(LOCAL_PATH)/edify/Android.mk \
-    $(LOCAL_PATH)/minui/Android.mk \
     $(LOCAL_PATH)/minadbd/Android.mk \
+    $(LOCAL_PATH)/minui/Android.mk \
     $(LOCAL_PATH)/otafault/Android.mk \
     $(LOCAL_PATH)/otautil/Android.mk \
     $(LOCAL_PATH)/tests/Android.mk \
diff --git a/bootloader_message/Android.mk b/bootloader_message/Android.mk
index 815ac67..a8c5081 100644
--- a/bootloader_message/Android.mk
+++ b/bootloader_message/Android.mk
@@ -19,6 +19,7 @@
 LOCAL_SRC_FILES := bootloader_message.cpp
 LOCAL_MODULE := libbootloader_message
 LOCAL_STATIC_LIBRARIES := libbase libfs_mgr
+LOCAL_CFLAGS := -Werror
 LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
 LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
 include $(BUILD_STATIC_LIBRARY)
diff --git a/bootloader_message/include/bootloader_message/bootloader_message.h b/bootloader_message/include/bootloader_message/bootloader_message.h
index e45f424..b3d2182 100644
--- a/bootloader_message/include/bootloader_message/bootloader_message.h
+++ b/bootloader_message/include/bootloader_message/bootloader_message.h
@@ -22,7 +22,7 @@
 #include <stdint.h>
 
 // Spaces used by misc partition are as below:
-// 0   - 2K     Bootloader Message
+// 0   - 2K     For bootloader_message
 // 2K  - 16K    Used by Vendor's bootloader (the 2K - 4K range may be optionally used
 //              as bootloader_message_ab struct)
 // 16K - 64K    Used by uncrypt and recovery to store wipe_package for A/B devices
@@ -173,6 +173,7 @@
               sizeof(((struct bootloader_message_ab *)0)->slot_suffix),
               "struct bootloader_control has wrong size");
 #endif
+
 #ifdef __cplusplus
 
 #include <string>
diff --git a/error_code.h b/error_code.h
index 92b1574..5dad6b2 100644
--- a/error_code.h
+++ b/error_code.h
@@ -47,7 +47,7 @@
 
 enum UncryptErrorCode {
   kUncryptNoError = -1,
-  kUncryptErrorHolder = 50,
+  kUncryptErrorPlaceholder = 50,
   kUncryptTimeoutError = 100,
   kUncryptFileRemoveError,
   kUncryptFileOpenError,
diff --git a/install.cpp b/install.cpp
index f124a26..dd6ed81 100644
--- a/install.cpp
+++ b/install.cpp
@@ -542,7 +542,7 @@
         if (!android::base::ReadFileToString(UNCRYPT_STATUS, &uncrypt_status)) {
             PLOG(WARNING) << "failed to read uncrypt status";
         } else if (!android::base::StartsWith(uncrypt_status, "uncrypt_")) {
-            LOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
+            PLOG(WARNING) << "corrupted uncrypt_status: " << uncrypt_status;
         } else {
             log_buffer.push_back(android::base::Trim(uncrypt_status));
         }
diff --git a/recovery.cpp b/recovery.cpp
index 5f16075..e777c46 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -350,9 +350,12 @@
   // --- if that doesn't work, try the command file (if we have /cache).
   if (argc == 1 && has_cache) {
     std::string content;
-    if (android::base::ReadFileToString(COMMAND_FILE, &content)) {
+    if (ensure_path_mounted(COMMAND_FILE) == 0 &&
+        android::base::ReadFileToString(COMMAND_FILE, &content)) {
       std::vector<std::string> tokens = android::base::Split(content, "\n");
-      for (auto it = tokens.begin() + 1; it != tokens.end(); it++) {
+      // All the arguments in COMMAND_FILE are needed (unlike the BCB message,
+      // COMMAND_FILE doesn't use filename as the first argument).
+      for (auto it = tokens.begin(); it != tokens.end(); it++) {
         // Skip empty and '\0'-filled tokens.
         if (!it->empty() && (*it)[0] != '\0') args.push_back(std::move(*it));
       }
@@ -1522,27 +1525,7 @@
     for (const auto& arg : args) {
         printf(" \"%s\"", arg.c_str());
     }
-    printf("\n");
-
-    if (update_package) {
-        // For backwards compatibility on the cache partition only, if
-        // we're given an old 'root' path "CACHE:foo", change it to
-        // "/cache/foo".
-        if (strncmp(update_package, "CACHE:", 6) == 0) {
-            int len = strlen(update_package) + 10;
-            char* modified_path = (char*)malloc(len);
-            if (modified_path) {
-                strlcpy(modified_path, "/cache/", len);
-                strlcat(modified_path, update_package+6, len);
-                printf("(replacing path \"%s\" with \"%s\")\n",
-                       update_package, modified_path);
-                update_package = modified_path;
-            }
-            else
-                printf("modified_path allocation failed\n");
-        }
-    }
-    printf("\n");
+    printf("\n\n");
 
     property_list(print_property, NULL);
     printf("\n");
diff --git a/screen_ui.cpp b/screen_ui.cpp
index fab3489..a7b03c5 100644
--- a/screen_ui.cpp
+++ b/screen_ui.cpp
@@ -54,8 +54,6 @@
 ScreenRecoveryUI::ScreenRecoveryUI() :
     currentIcon(NONE),
     locale(nullptr),
-    intro_done(false),
-    current_frame(0),
     progressBarType(EMPTY),
     progressScopeStart(0),
     progressScopeSize(0),
@@ -76,6 +74,8 @@
     file_viewer_text_(nullptr),
     intro_frames(0),
     loop_frames(0),
+    current_frame(0),
+    intro_done(false),
     animation_fps(30), // TODO: there's currently no way to infer this.
     stage(-1),
     max_stage(-1),
@@ -106,29 +106,41 @@
 
 // Here's the intended layout:
 
-//          | regular     large
-// ---------+--------------------
-//          |   220dp     366dp
-// icon     |  (200dp)   (200dp)
-//          |    68dp      68dp
-// text     |   (14sp)    (14sp)
-//          |    32dp      32dp
-// progress |    (2dp)     (2dp)
-//          |   194dp     340dp
+//          | portrait    large        landscape      large
+// ---------+-------------------------------------------------
+//      gap |   220dp     366dp            142dp      284dp
+// icon     |                   (200dp)
+//      gap |    68dp      68dp             56dp      112dp
+// text     |                    (14sp)
+//      gap |    32dp      32dp             26dp       52dp
+// progress |                     (2dp)
+//      gap |   194dp     340dp            131dp      262dp
 
 // Note that "baseline" is actually the *top* of each icon (because that's how our drawing
 // routines work), so that's the more useful measurement for calling code.
 
+enum Layout { PORTRAIT = 0, PORTRAIT_LARGE = 1, LANDSCAPE = 2, LANDSCAPE_LARGE = 3, LAYOUT_MAX };
+enum Dimension { PROGRESS = 0, TEXT = 1, ICON = 2, DIMENSION_MAX };
+static constexpr int kLayouts[LAYOUT_MAX][DIMENSION_MAX] = {
+    { 194,  32,  68, }, // PORTRAIT
+    { 340,  32,  68, }, // PORTRAIT_LARGE
+    { 131,  26,  56, }, // LANDSCAPE
+    { 262,  52, 112, }, // LANDSCAPE_LARGE
+};
+
 int ScreenRecoveryUI::GetAnimationBaseline() {
-    return GetTextBaseline() - PixelsFromDp(68) - gr_get_height(loopFrames[0]);
+    return GetTextBaseline() - PixelsFromDp(kLayouts[layout_][ICON]) -
+            gr_get_height(loopFrames[0]);
 }
 
 int ScreenRecoveryUI::GetTextBaseline() {
-    return GetProgressBaseline() - PixelsFromDp(32) - gr_get_height(installing_text);
+    return GetProgressBaseline() - PixelsFromDp(kLayouts[layout_][TEXT]) -
+            gr_get_height(installing_text);
 }
 
 int ScreenRecoveryUI::GetProgressBaseline() {
-    return gr_fb_height() - PixelsFromDp(is_large_ ? 340 : 194) - gr_get_height(progressBarFill);
+    return gr_fb_height() - PixelsFromDp(kLayouts[layout_][PROGRESS]) -
+            gr_get_height(progressBarFill);
 }
 
 // Clear the screen and draw the currently selected background icon (if any).
@@ -436,15 +448,24 @@
     Redraw();
 }
 
-void ScreenRecoveryUI::Init() {
+void ScreenRecoveryUI::InitTextParams() {
     gr_init();
 
-    density_ = static_cast<float>(android::base::GetIntProperty("ro.sf.lcd_density", 160)) / 160.f;
-    is_large_ = gr_fb_height() > PixelsFromDp(800);
-
     gr_font_size(gr_sys_font(), &char_width_, &char_height_);
     text_rows_ = gr_fb_height() / char_height_;
     text_cols_ = gr_fb_width() / char_width_;
+}
+
+void ScreenRecoveryUI::Init() {
+    RecoveryUI::Init();
+    InitTextParams();
+
+    density_ = static_cast<float>(android::base::GetIntProperty("ro.sf.lcd_density", 160)) / 160.f;
+
+    // Are we portrait or landscape?
+    layout_ = (gr_fb_width() > gr_fb_height()) ? LANDSCAPE : PORTRAIT;
+    // Are we the large variant of our base layout?
+    if (gr_fb_height() > PixelsFromDp(800)) ++layout_;
 
     text_ = Alloc2d(text_rows_, text_cols_ + 1);
     file_viewer_text_ = Alloc2d(text_rows_, text_cols_ + 1);
@@ -472,37 +493,42 @@
     LoadAnimation();
 
     pthread_create(&progress_thread_, nullptr, ProgressThreadStartRoutine, this);
-
-    RecoveryUI::Init();
 }
 
 void ScreenRecoveryUI::LoadAnimation() {
-    // How many frames of intro and loop do we have?
     std::unique_ptr<DIR, decltype(&closedir)> dir(opendir("/res/images"), closedir);
     dirent* de;
+    std::vector<std::string> intro_frame_names;
+    std::vector<std::string> loop_frame_names;
+
     while ((de = readdir(dir.get())) != nullptr) {
-        int value;
-        if (sscanf(de->d_name, "intro%d", &value) == 1 && intro_frames < (value + 1)) {
-            intro_frames = value + 1;
-        } else if (sscanf(de->d_name, "loop%d", &value) == 1 && loop_frames < (value + 1)) {
-            loop_frames = value + 1;
+        int value, num_chars;
+        if (sscanf(de->d_name, "intro%d%n.png", &value, &num_chars) == 1) {
+            intro_frame_names.emplace_back(de->d_name, num_chars);
+        } else if (sscanf(de->d_name, "loop%d%n.png", &value, &num_chars) == 1) {
+            loop_frame_names.emplace_back(de->d_name, num_chars);
         }
     }
 
+    intro_frames = intro_frame_names.size();
+    loop_frames = loop_frame_names.size();
+
     // It's okay to not have an intro.
     if (intro_frames == 0) intro_done = true;
     // But you must have an animation.
     if (loop_frames == 0) abort();
 
+    std::sort(intro_frame_names.begin(), intro_frame_names.end());
+    std::sort(loop_frame_names.begin(), loop_frame_names.end());
+
     introFrames = new GRSurface*[intro_frames];
-    for (int i = 0; i < intro_frames; ++i) {
-        // TODO: remember the names above, so we don't have to hard-code the number of 0s.
-        LoadBitmap(android::base::StringPrintf("intro%05d", i).c_str(), &introFrames[i]);
+    for (size_t i = 0; i < intro_frames; i++) {
+        LoadBitmap(intro_frame_names.at(i).c_str(), &introFrames[i]);
     }
 
     loopFrames = new GRSurface*[loop_frames];
-    for (int i = 0; i < loop_frames; ++i) {
-        LoadBitmap(android::base::StringPrintf("loop%05d", i).c_str(), &loopFrames[i]);
+    for (size_t i = 0; i < loop_frames; i++) {
+        LoadBitmap(loop_frame_names.at(i).c_str(), &loopFrames[i]);
     }
 }
 
diff --git a/screen_ui.h b/screen_ui.h
index 4319b76..de7b644 100644
--- a/screen_ui.h
+++ b/screen_ui.h
@@ -37,16 +37,16 @@
     void SetSystemUpdateText(bool security_update);
 
     // progress indicator
-    void SetProgressType(ProgressType type);
-    void ShowProgress(float portion, float seconds);
-    void SetProgress(float fraction);
+    void SetProgressType(ProgressType type) override;
+    void ShowProgress(float portion, float seconds) override;
+    void SetProgress(float fraction) override;
 
-    void SetStage(int current, int max);
+    void SetStage(int current, int max) override;
 
     // text log
-    void ShowText(bool visible);
-    bool IsTextVisible();
-    bool WasTextEverVisible();
+    void ShowText(bool visible) override;
+    bool IsTextVisible() override;
+    bool WasTextEverVisible() override;
 
     // printing messages
     void Print(const char* fmt, ...) __printflike(2, 3);
@@ -72,13 +72,11 @@
     Icon currentIcon;
 
     const char* locale;
-    bool intro_done;
-    int current_frame;
 
     // The scale factor from dp to pixels. 1.0 for mdpi, 4.0 for xxxhdpi.
     float density_;
-    // True if we should use the large layout.
-    bool is_large_;
+    // The layout to use.
+    int layout_;
 
     GRSurface* error_icon;
 
@@ -123,8 +121,11 @@
     pthread_t progress_thread_;
 
     // Number of intro frames and loop frames in the animation.
-    int intro_frames;
-    int loop_frames;
+    size_t intro_frames;
+    size_t loop_frames;
+
+    size_t current_frame;
+    bool intro_done;
 
     // Number of frames per sec (default: 30) for both parts of the animation.
     int animation_fps;
@@ -136,11 +137,13 @@
     pthread_mutex_t updateMutex;
     bool rtl_locale;
 
-    void draw_background_locked();
-    void draw_foreground_locked();
-    void draw_screen_locked();
-    void update_screen_locked();
-    void update_progress_locked();
+    virtual void InitTextParams();
+
+    virtual void draw_background_locked();
+    virtual void draw_foreground_locked();
+    virtual void draw_screen_locked();
+    virtual void update_screen_locked();
+    virtual void update_progress_locked();
 
     GRSurface* GetCurrentFrame();
     GRSurface* GetCurrentText();
@@ -148,8 +151,8 @@
     static void* ProgressThreadStartRoutine(void* data);
     void ProgressThreadLoop();
 
-    void ShowFile(FILE*);
-    void PrintV(const char*, bool, va_list);
+    virtual void ShowFile(FILE*);
+    virtual void PrintV(const char*, bool, va_list);
     void PutChar(char);
     void ClearText();
 
@@ -158,9 +161,9 @@
     void LoadLocalizedBitmap(const char* filename, GRSurface** surface);
 
     int PixelsFromDp(int dp);
-    int GetAnimationBaseline();
-    int GetProgressBaseline();
-    int GetTextBaseline();
+    virtual int GetAnimationBaseline();
+    virtual int GetProgressBaseline();
+    virtual int GetTextBaseline();
 
     void DrawHorizontalRule(int* y);
     void DrawTextLine(int x, int* y, const char* line, bool bold);
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index e1b6a1c..38b25ab 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -457,22 +457,23 @@
     return 0;
 }
 
-static bool uncrypt_wrapper(const char* input_path, const char* map_file, const int socket) {
-    // Initialize the uncrypt error to kUncryptErrorHolder.
+static void log_uncrypt_error_code(UncryptErrorCode error_code) {
     if (!android::base::WriteStringToFile(android::base::StringPrintf(
-            "uncrypt_error: %d\n", kUncryptErrorHolder), UNCRYPT_STATUS)) {
+            "uncrypt_error: %d\n", error_code), UNCRYPT_STATUS)) {
         PLOG(WARNING) << "failed to write to " << UNCRYPT_STATUS;
     }
+}
+
+static bool uncrypt_wrapper(const char* input_path, const char* map_file, const int socket) {
+    // Initialize the uncrypt error to kUncryptErrorPlaceholder.
+    log_uncrypt_error_code(kUncryptErrorPlaceholder);
 
     std::string package;
     if (input_path == nullptr) {
         if (!find_uncrypt_package(UNCRYPT_PATH_FILE, &package)) {
             write_status_to_socket(-1, socket);
             // Overwrite the error message.
-            if (!android::base::WriteStringToFile(android::base::StringPrintf(
-                    "uncrypt_error: %d\n", kUncryptPackageMissingError), UNCRYPT_STATUS)) {
-                PLOG(WARNING) << "failed to write to " << UNCRYPT_STATUS;
-            }
+            log_uncrypt_error_code(kUncryptPackageMissingError);
             return false;
         }
         input_path = package.c_str();
@@ -591,10 +592,7 @@
     }
 
     if ((fstab = read_fstab()) == nullptr) {
-        if (!android::base::WriteStringToFile(android::base::StringPrintf(
-                "uncrypt_error: %d\n", kUncryptFstabReadError), UNCRYPT_STATUS)) {
-            PLOG(WARNING) << "failed to write to " << UNCRYPT_STATUS;
-        }
+        log_uncrypt_error_code(kUncryptFstabReadError);
         return 1;
     }
 
@@ -614,30 +612,21 @@
     android::base::unique_fd service_socket(android_get_control_socket(UNCRYPT_SOCKET.c_str()));
     if (service_socket == -1) {
         PLOG(ERROR) << "failed to open socket \"" << UNCRYPT_SOCKET << "\"";
-        if (!android::base::WriteStringToFile(android::base::StringPrintf(
-                "uncrypt_error: %d\n", kUncryptSocketOpenError), UNCRYPT_STATUS)) {
-            PLOG(WARNING) << "failed to write to " << UNCRYPT_STATUS;
-        }
+        log_uncrypt_error_code(kUncryptSocketOpenError);
         return 1;
     }
     fcntl(service_socket, F_SETFD, FD_CLOEXEC);
 
     if (listen(service_socket, 1) == -1) {
         PLOG(ERROR) << "failed to listen on socket " << service_socket.get();
-        if (!android::base::WriteStringToFile(android::base::StringPrintf(
-                "uncrypt_error: %d\n", kUncryptSocketListenError), UNCRYPT_STATUS)) {
-            PLOG(WARNING) << "failed to write to " << UNCRYPT_STATUS;
-        }
+        log_uncrypt_error_code(kUncryptSocketListenError);
         return 1;
     }
 
     android::base::unique_fd socket_fd(accept4(service_socket, nullptr, nullptr, SOCK_CLOEXEC));
     if (socket_fd == -1) {
         PLOG(ERROR) << "failed to accept on socket " << service_socket.get();
-        if (!android::base::WriteStringToFile(android::base::StringPrintf(
-                "uncrypt_error: %d\n", kUncryptSocketAcceptError), UNCRYPT_STATUS)) {
-            PLOG(WARNING) << "failed to write to " << UNCRYPT_STATUS;
-        }
+        log_uncrypt_error_code(kUncryptSocketAcceptError);
         return 1;
     }
 
diff --git a/wear_ui.cpp b/wear_ui.cpp
index 5433d11..0918ac4 100644
--- a/wear_ui.cpp
+++ b/wear_ui.cpp
@@ -47,32 +47,13 @@
 }
 
 WearRecoveryUI::WearRecoveryUI() :
-    progress_bar_height(3),
-    progress_bar_width(200),
     progress_bar_y(259),
     outer_height(0),
     outer_width(0),
-    menu_unusable_rows(0),
-    intro_frames(22),
-    loop_frames(60),
-    animation_fps(30),
-    currentIcon(NONE),
-    intro_done(false),
-    current_frame(0),
-    progressBarType(EMPTY),
-    progressScopeStart(0),
-    progressScopeSize(0),
-    progress(0),
-    text_cols(0),
-    text_rows(0),
-    text_col(0),
-    text_row(0),
-    text_top(0),
-    show_text(false),
-    show_text_ever(false),
-    show_menu(false),
-    menu_items(0),
-    menu_sel(0) {
+    menu_unusable_rows(0) {
+    intro_frames = 22;
+    loop_frames = 60;
+    animation_fps = 30;
 
     for (size_t i = 0; i < 5; i++)
         backgroundIcon[i] = NULL;
@@ -80,16 +61,22 @@
     self = this;
 }
 
+int WearRecoveryUI::GetProgressBaseline() {
+    return progress_bar_y;
+}
+
 // Draw background frame on the screen.  Does not flip pages.
 // Should only be called with updateMutex locked.
-void WearRecoveryUI::draw_background_locked(Icon icon)
+// TODO merge drawing routines with screen_ui
+void WearRecoveryUI::draw_background_locked()
 {
+    pagesIdentical = false;
     gr_color(0, 0, 0, 255);
     gr_fill(0, 0, gr_fb_width(), gr_fb_height());
 
-    if (icon) {
+    if (currentIcon != NONE) {
         GRSurface* surface;
-        if (icon == INSTALLING_UPDATE || icon == ERASING) {
+        if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) {
             if (!intro_done) {
                 surface = introFrames[current_frame];
             } else {
@@ -97,7 +84,7 @@
             }
         }
         else {
-            surface = backgroundIcon[icon];
+            surface = backgroundIcon[currentIcon];
         }
 
         int width = gr_get_width(surface);
@@ -110,36 +97,6 @@
     }
 }
 
-// Draw the progress bar (if any) on the screen.  Does not flip pages.
-// Should only be called with updateMutex locked.
-void WearRecoveryUI::draw_progress_locked()
-{
-    if (currentIcon == ERROR) return;
-    if (progressBarType != DETERMINATE) return;
-
-    int width = progress_bar_width;
-    int height = progress_bar_height;
-    int dx = (gr_fb_width() - width)/2;
-    int dy = progress_bar_y;
-
-    float p = progressScopeStart + progress * progressScopeSize;
-    int pos = (int) (p * width);
-
-    gr_color(0x43, 0x43, 0x43, 0xff);
-    gr_fill(dx, dy, dx + width, dy + height);
-
-    if (pos > 0) {
-        gr_color(0x02, 0xa8, 0xf3, 255);
-        if (rtl_locale) {
-            // Fill the progress bar from right to left.
-            gr_fill(dx + width - pos, dy, dx + width, dy + height);
-        } else {
-            // Fill the progress bar from left to right.
-            gr_fill(dx, dy, dx + pos, dy + height);
-        }
-    }
-}
-
 static const char* HEADERS[] = {
     "Swipe up/down to move.",
     "Swipe left/right to select.",
@@ -147,13 +104,15 @@
     NULL
 };
 
+// TODO merge drawing routines with screen_ui
 void WearRecoveryUI::draw_screen_locked()
 {
-    draw_background_locked(currentIcon);
-    draw_progress_locked();
     char cur_selection_str[50];
 
-    if (show_text) {
+    draw_background_locked();
+    if (!show_text) {
+        draw_foreground_locked();
+    } else {
         SetColor(TEXT_FILL);
         gr_fill(0, 0, gr_fb_width(), gr_fb_height());
 
@@ -192,10 +151,12 @@
                     gr_fill(x, y-2, gr_fb_width()-x, y+char_height_+2);
                     // white text of selected item
                     SetColor(MENU_SEL_FG);
-                    if (menu[i][0]) gr_text(gr_sys_font(), x+4, y, menu[i], 1);
+                    if (menu_[i][0]) {
+                        gr_text(gr_sys_font(), x + 4, y, menu_[i], 1);
+                    }
                     SetColor(MENU);
-                } else if (menu[i][0]) {
-                    gr_text(gr_sys_font(), x+4, y, menu[i], 0);
+                } else if (menu_[i][0]) {
+                    gr_text(gr_sys_font(), x + 4, y, menu_[i], 0);
                 }
                 y += char_height_+4;
             }
@@ -211,163 +172,42 @@
         // screen, the bottom of the menu, or we've displayed the
         // entire text buffer.
         int ty;
-        int row = (text_top+text_rows-1) % text_rows;
+        int row = (text_top_ + text_rows_ - 1) % text_rows_;
         size_t count = 0;
         for (int ty = gr_fb_height() - char_height_ - outer_height;
-             ty > y+2 && count < text_rows;
+             ty > y + 2 && count < text_rows_;
              ty -= char_height_, ++count) {
-            gr_text(gr_sys_font(), x+4, ty, text[row], 0);
+            gr_text(gr_sys_font(), x+4, ty, text_[row], 0);
             --row;
-            if (row < 0) row = text_rows-1;
+            if (row < 0) row = text_rows_ - 1;
         }
     }
 }
 
-void WearRecoveryUI::update_screen_locked()
-{
+// TODO merge drawing routines with screen_ui
+void WearRecoveryUI::update_progress_locked() {
     draw_screen_locked();
     gr_flip();
 }
 
-// Keeps the progress bar updated, even when the process is otherwise busy.
-void* WearRecoveryUI::progress_thread(void *cookie) {
-    self->progress_loop();
-    return NULL;
-}
+void WearRecoveryUI::InitTextParams() {
+    ScreenRecoveryUI::InitTextParams();
 
-void WearRecoveryUI::progress_loop() {
-    double interval = 1.0 / animation_fps;
-    for (;;) {
-        double start = now();
-        pthread_mutex_lock(&updateMutex);
-        int redraw = 0;
+    text_cols_ = (gr_fb_width() - (outer_width * 2)) / char_width_;
 
-        if ((currentIcon == INSTALLING_UPDATE || currentIcon == ERASING)
-                                                            && !show_text) {
-            if (!intro_done) {
-                if (current_frame >= intro_frames - 1) {
-                    intro_done = true;
-                    current_frame = 0;
-                } else {
-                    current_frame++;
-                }
-            } else {
-                current_frame = (current_frame + 1) % loop_frames;
-            }
-            redraw = 1;
-        }
+    if (text_rows_ > kMaxRows) text_rows_ = kMaxRows;
+    if (text_cols_ > kMaxCols) text_cols_ = kMaxCols;
 
-        // move the progress bar forward on timed intervals, if configured
-        int duration = progressScopeDuration;
-        if (progressBarType == DETERMINATE && duration > 0) {
-            double elapsed = now() - progressScopeTime;
-            float p = 1.0 * elapsed / duration;
-            if (p > 1.0) p = 1.0;
-            if (p > progress) {
-                progress = p;
-                redraw = 1;
-            }
-        }
-
-        if (redraw)
-            update_screen_locked();
-
-        pthread_mutex_unlock(&updateMutex);
-        double end = now();
-        // minimum of 20ms delay between frames
-        double delay = interval - (end-start);
-        if (delay < 0.02) delay = 0.02;
-        usleep(static_cast<useconds_t>(delay * 1000000));
-    }
-}
-
-void WearRecoveryUI::Init()
-{
-    gr_init();
-
-    gr_font_size(gr_sys_font(), &char_width_, &char_height_);
-
-    text_col = text_row = 0;
-    text_rows = (gr_fb_height()) / char_height_;
     visible_text_rows = (gr_fb_height() - (outer_height * 2)) / char_height_;
-    if (text_rows > kMaxRows) text_rows = kMaxRows;
-    text_top = 1;
+}
 
-    text_cols = (gr_fb_width() - (outer_width * 2)) / char_width_;
-    if (text_cols > kMaxCols - 1) text_cols = kMaxCols - 1;
+void WearRecoveryUI::Init() {
+    ScreenRecoveryUI::Init();
 
     LoadBitmap("icon_installing", &backgroundIcon[INSTALLING_UPDATE]);
     backgroundIcon[ERASING] = backgroundIcon[INSTALLING_UPDATE];
     LoadBitmap("icon_error", &backgroundIcon[ERROR]);
     backgroundIcon[NO_COMMAND] = backgroundIcon[ERROR];
-
-    introFrames = (GRSurface**)malloc(intro_frames * sizeof(GRSurface*));
-    for (int i = 0; i < intro_frames; ++i) {
-        char filename[40];
-        sprintf(filename, "intro%02d", i);
-        LoadBitmap(filename, introFrames + i);
-    }
-
-    loopFrames = (GRSurface**)malloc(loop_frames * sizeof(GRSurface*));
-    for (int i = 0; i < loop_frames; ++i) {
-        char filename[40];
-        sprintf(filename, "loop%02d", i);
-        LoadBitmap(filename, loopFrames + i);
-    }
-
-    pthread_create(&progress_t, NULL, progress_thread, NULL);
-    RecoveryUI::Init();
-}
-
-void WearRecoveryUI::SetBackground(Icon icon)
-{
-    pthread_mutex_lock(&updateMutex);
-    currentIcon = icon;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::SetProgressType(ProgressType type)
-{
-    pthread_mutex_lock(&updateMutex);
-    if (progressBarType != type) {
-        progressBarType = type;
-    }
-    progressScopeStart = 0;
-    progressScopeSize = 0;
-    progress = 0;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::ShowProgress(float portion, float seconds)
-{
-    pthread_mutex_lock(&updateMutex);
-    progressBarType = DETERMINATE;
-    progressScopeStart += progressScopeSize;
-    progressScopeSize = portion;
-    progressScopeTime = now();
-    progressScopeDuration = seconds;
-    progress = 0;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::SetProgress(float fraction)
-{
-    pthread_mutex_lock(&updateMutex);
-    if (fraction < 0.0) fraction = 0.0;
-    if (fraction > 1.0) fraction = 1.0;
-    if (progressBarType == DETERMINATE && fraction > progress) {
-        // Skip updates that aren't visibly different.
-        int width = progress_bar_width;
-        float scale = width * progressScopeSize;
-        if ((int) (progress * scale) != (int) (fraction * scale)) {
-            progress = fraction;
-            update_screen_locked();
-        }
-    }
-    pthread_mutex_unlock(&updateMutex);
 }
 
 void WearRecoveryUI::SetStage(int current, int max)
@@ -386,40 +226,40 @@
 
     // This can get called before ui_init(), so be careful.
     pthread_mutex_lock(&updateMutex);
-    if (text_rows > 0 && text_cols > 0) {
+    if (text_rows_ > 0 && text_cols_ > 0) {
         char *ptr;
         for (ptr = buf; *ptr != '\0'; ++ptr) {
-            if (*ptr == '\n' || text_col >= text_cols) {
-                text[text_row][text_col] = '\0';
-                text_col = 0;
-                text_row = (text_row + 1) % text_rows;
-                if (text_row == text_top) text_top = (text_top + 1) % text_rows;
+            if (*ptr == '\n' || text_col_ >= text_cols_) {
+                text_[text_row_][text_col_] = '\0';
+                text_col_ = 0;
+                text_row_ = (text_row_ + 1) % text_rows_;
+                if (text_row_ == text_top_) text_top_ = (text_top_ + 1) % text_rows_;
             }
-            if (*ptr != '\n') text[text_row][text_col++] = *ptr;
+            if (*ptr != '\n') text_[text_row_][text_col_++] = *ptr;
         }
-        text[text_row][text_col] = '\0';
+        text_[text_row_][text_col_] = '\0';
         update_screen_locked();
     }
     pthread_mutex_unlock(&updateMutex);
 }
 
 void WearRecoveryUI::StartMenu(const char* const * headers, const char* const * items,
-                                 int initial_selection) {
+                               int initial_selection) {
     pthread_mutex_lock(&updateMutex);
-    if (text_rows > 0 && text_cols > 0) {
+    if (text_rows_ > 0 && text_cols_ > 0) {
         menu_headers_ = headers;
         size_t i = 0;
-        // "i < text_rows" is removed from the loop termination condition,
+        // "i < text_rows_" is removed from the loop termination condition,
         // which is different from the one in ScreenRecoveryUI::StartMenu().
         // Because WearRecoveryUI supports scrollable menu, it's fine to have
-        // more entries than text_rows. The menu may be truncated otherwise.
+        // more entries than text_rows_. The menu may be truncated otherwise.
         // Bug: 23752519
         for (; items[i] != nullptr; i++) {
-            strncpy(menu[i], items[i], text_cols - 1);
-            menu[i][text_cols - 1] = '\0';
+            strncpy(menu_[i], items[i], text_cols_ - 1);
+            menu_[i][text_cols_ - 1] = '\0';
         }
         menu_items = i;
-        show_menu = 1;
+        show_menu = true;
         menu_sel = initial_selection;
         menu_start = 0;
         menu_end = visible_text_rows - 1 - menu_unusable_rows;
@@ -433,7 +273,7 @@
 int WearRecoveryUI::SelectMenu(int sel) {
     int old_sel;
     pthread_mutex_lock(&updateMutex);
-    if (show_menu > 0) {
+    if (show_menu) {
         old_sel = menu_sel;
         menu_sel = sel;
         if (menu_sel < 0) menu_sel = 0;
@@ -452,53 +292,6 @@
     return sel;
 }
 
-void WearRecoveryUI::EndMenu() {
-    int i;
-    pthread_mutex_lock(&updateMutex);
-    if (show_menu > 0 && text_rows > 0 && text_cols > 0) {
-        show_menu = 0;
-        update_screen_locked();
-    }
-    pthread_mutex_unlock(&updateMutex);
-}
-
-bool WearRecoveryUI::IsTextVisible()
-{
-    pthread_mutex_lock(&updateMutex);
-    int visible = show_text;
-    pthread_mutex_unlock(&updateMutex);
-    return visible;
-}
-
-bool WearRecoveryUI::WasTextEverVisible()
-{
-    pthread_mutex_lock(&updateMutex);
-    int ever_visible = show_text_ever;
-    pthread_mutex_unlock(&updateMutex);
-    return ever_visible;
-}
-
-void WearRecoveryUI::ShowText(bool visible)
-{
-    pthread_mutex_lock(&updateMutex);
-    // Don't show text during ota install or factory reset
-    if (currentIcon == INSTALLING_UPDATE || currentIcon == ERASING) {
-        pthread_mutex_unlock(&updateMutex);
-        return;
-    }
-    show_text = visible;
-    if (show_text) show_text_ever = 1;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::Redraw()
-{
-    pthread_mutex_lock(&updateMutex);
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
 void WearRecoveryUI::ShowFile(FILE* fp) {
     std::vector<off_t> offsets;
     offsets.push_back(ftello(fp));
@@ -538,12 +331,12 @@
 
         int ch = getc(fp);
         if (ch == EOF) {
-            text_row = text_top = text_rows - 2;
+            text_row_ = text_top_ = text_rows_ - 2;
             show_prompt = true;
         } else {
             PutChar(ch);
-            if (text_col == 0 && text_row >= text_rows - 2) {
-                text_top = text_row;
+            if (text_col_ == 0 && text_row_ >= text_rows_ - 2) {
+                text_top_ = text_row_;
                 show_prompt = true;
             }
         }
@@ -552,10 +345,10 @@
 
 void WearRecoveryUI::PutChar(char ch) {
     pthread_mutex_lock(&updateMutex);
-    if (ch != '\n') text[text_row][text_col++] = ch;
-    if (ch == '\n' || text_col >= text_cols) {
-        text_col = 0;
-        ++text_row;
+    if (ch != '\n') text_[text_row_][text_col_++] = ch;
+    if (ch == '\n' || text_col_ >= text_cols_) {
+        text_col_ = 0;
+        ++text_row_;
     }
     pthread_mutex_unlock(&updateMutex);
 }
@@ -572,11 +365,11 @@
 
 void WearRecoveryUI::ClearText() {
     pthread_mutex_lock(&updateMutex);
-    text_col = 0;
-    text_row = 0;
-    text_top = 1;
-    for (size_t i = 0; i < text_rows; ++i) {
-        memset(text[i], 0, text_cols + 1);
+    text_col_ = 0;
+    text_row_ = 0;
+    text_top_ = 1;
+    for (size_t i = 0; i < text_rows_; ++i) {
+        memset(text_[i], 0, text_cols_ + 1);
     }
     pthread_mutex_unlock(&updateMutex);
 }
@@ -597,17 +390,17 @@
     }
 
     pthread_mutex_lock(&updateMutex);
-    if (text_rows > 0 && text_cols > 0) {
+    if (text_rows_ > 0 && text_cols_ > 0) {
         for (const char* ptr = str.c_str(); *ptr != '\0'; ++ptr) {
-            if (*ptr == '\n' || text_col >= text_cols) {
-                text[text_row][text_col] = '\0';
-                text_col = 0;
-                text_row = (text_row + 1) % text_rows;
-                if (text_row == text_top) text_top = (text_top + 1) % text_rows;
+            if (*ptr == '\n' || text_col_ >= text_cols_) {
+                text_[text_row_][text_col_] = '\0';
+                text_col_ = 0;
+                text_row_ = (text_row_ + 1) % text_rows_;
+                if (text_row_ == text_top_) text_top_ = (text_top_ + 1) % text_rows_;
             }
-            if (*ptr != '\n') text[text_row][text_col++] = *ptr;
+            if (*ptr != '\n') text_[text_row_][text_col_++] = *ptr;
         }
-        text[text_row][text_col] = '\0';
+        text_[text_row_][text_col_] = '\0';
         update_screen_locked();
     }
     pthread_mutex_unlock(&updateMutex);
diff --git a/wear_ui.h b/wear_ui.h
index e2d6fe0..9351d41 100644
--- a/wear_ui.h
+++ b/wear_ui.h
@@ -23,39 +23,22 @@
   public:
     WearRecoveryUI();
 
-    void Init();
-    // overall recovery state ("background image")
-    void SetBackground(Icon icon);
+    void Init() override;
 
-    // progress indicator
-    void SetProgressType(ProgressType type);
-    void ShowProgress(float portion, float seconds);
-    void SetProgress(float fraction);
-
-    void SetStage(int current, int max);
-
-    // text log
-    void ShowText(bool visible);
-    bool IsTextVisible();
-    bool WasTextEverVisible();
+    void SetStage(int current, int max) override;
 
     // printing messages
-    void Print(const char* fmt, ...);
-    void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3);
-    void ShowFile(const char* filename);
-    void ShowFile(FILE* fp);
+    void Print(const char* fmt, ...) override;
+    void PrintOnScreenOnly(const char* fmt, ...) override __printflike(2, 3);
+    void ShowFile(const char* filename) override;
+    void ShowFile(FILE* fp) override;
 
     // menu display
     void StartMenu(const char* const * headers, const char* const * items,
-                           int initial_selection);
-    int SelectMenu(int sel);
-    void EndMenu();
-
-    void Redraw();
+                   int initial_selection) override;
+    int SelectMenu(int sel) override;
 
   protected:
-    int progress_bar_height, progress_bar_width;
-
     // progress bar vertical position, it's centered horizontally
     int progress_bar_y;
 
@@ -67,59 +50,34 @@
     // that may otherwise go out of the screen.
     int menu_unusable_rows;
 
-    // number of intro frames (default: 22) and loop frames (default: 60)
-    int intro_frames;
-    int loop_frames;
+    int GetProgressBaseline() override;
 
-    // Number of frames per sec (default: 30) for both of intro and loop.
-    int animation_fps;
+    void InitTextParams() override;
+
+    void update_progress_locked() override;
+
+    void PrintV(const char*, bool, va_list) override;
 
   private:
-    Icon currentIcon;
-
-    bool intro_done;
-
-    int current_frame;
-
     GRSurface* backgroundIcon[5];
-    GRSurface* *introFrames;
-    GRSurface* *loopFrames;
-
-    ProgressType progressBarType;
-
-    float progressScopeStart, progressScopeSize, progress;
-    double progressScopeTime, progressScopeDuration;
 
     static const int kMaxCols = 96;
     static const int kMaxRows = 96;
 
-    // Log text overlay, displayed when a magic key is pressed
-    char text[kMaxRows][kMaxCols];
-    size_t text_cols, text_rows;
     // Number of text rows seen on screen
     int visible_text_rows;
-    size_t text_col, text_row, text_top;
-    bool show_text;
-    bool show_text_ever;   // has show_text ever been true?
 
-    char menu[kMaxRows][kMaxCols];
-    bool show_menu;
     const char* const* menu_headers_;
-    int menu_items, menu_sel;
     int menu_start, menu_end;
 
     pthread_t progress_t;
 
-  private:
-    void draw_background_locked(Icon icon);
+    void draw_background_locked() override;
+    void draw_screen_locked() override;
     void draw_progress_locked();
-    void draw_screen_locked();
-    void update_screen_locked();
-    static void* progress_thread(void* cookie);
-    void progress_loop();
+
     void PutChar(char);
     void ClearText();
-    void PrintV(const char*, bool, va_list);
 };
 
 #endif  // RECOVERY_WEAR_UI_H