Fix some issues with flashing addons

openandroidinstaller/assets/configs/heroltexx.yaml

@@ -0,0 +1,22 @@
+metadata:
+  maintainer: Tobias Sterbak (tsterbak)
+  devicename: Samsung Galaxy S7
+  devicecode: herolte 
+steps:
+  unlock_bootloader:
+  flash_recovery:
+    - type: call_button
+      content: >
+        As a first step, you need to boot into the bootloader. A bootloader is the piece of software, 
+        that tells your phone who to start and run an operating system (like Android). Your device should be turned on. 
+        Then press 'Confirm and run' to reboot into the bootloader. Continue once it's done.
+      command: adb_reboot_download
+    - type: call_button
+      content: In this step, you need to flash a custom recovery on your device. Press 'Confirm and run' to start the process. Confirm afterwards to continue.
+      command: heimdall_flash_recovery
+    - type: confirm_button
+      img: samsung-buttons.png
+      content: >
+        Unplug the USB cable from your device. Then manually reboot into recovery by pressing the *Volume Down* + *Power buttons* for 8~10 seconds 
+        until the screen turns black & release the buttons immediately when it does, then boot to recovery with the device powered off, 
+        hold *Volume Up* + *Home* + *Power button*.

openandroidinstaller/tooling.py

@@ -266,8 +266,9 @@ def adb_twrp_install_addons(bin_path: Path, addons: List[str], is_ab: bool) -> b
     Only works for twrp recovery.
     """
     logger.info("Install addons with twrp.")
-    if is_ab:
-        sleep(7)
+    sleep(5)
+    logger.info("Sideload and install addons.")
+    for addon in addons:
         # activate sideload
         logger.info("Activate sideload.")
         for line in run_command("adb", ["shell", "twrp", "sideload"], bin_path):
@@ -276,20 +277,17 @@ def adb_twrp_install_addons(bin_path: Path, addons: List[str], is_ab: bool) -> b
             logger.error("Activating sideload failed.")
             yield False
             return
-
-    # now flash os image
-    sleep(5)
-    logger.info("Sideload and install addons.")
-    for addon in addons:
+        sleep(2)
+        # now flash os image
         for line in run_command("adb", ["sideload", f"{addon}"], bin_path):
             yield line
         if (type(line) == bool) and not line:
             logger.error(f"Sideloading {addon} failed.")
             # TODO: this might sometimes think it failed, but actually it's fine. So skip for now.
             # yield False
             # return
+        sleep(7)
     # finally reboot into os
-    sleep(7)
     if is_ab:
         # reboot into the bootloader again
         logger.info("Rebooting device into bootloader with adb.")