Hi to all Android Enthusiasts!
I have done something stupid :D
Some website claimed that Cyanogenmod would not work unless twrp was installed. (ChristianTroy)
I had already rooted my device (Denver Tablet TAQ-80053 ARMv7 with Android 4.1.1) so I thought why not flash to TWRP with the file: "CWM-based-Recovery-v22.214.171.124-signed.zip"? BAD idea :( I admit, this is a bit confusing since CWM and TWRP are not the same thing AFAIK. Could be another file .....
Now "Recovery Mode" is only the "TeamWin Logo" then BLACK SCREEN and nothingness ??
Everything else is working somewhat normal: 1) I can boot normally into the start screen of Android 4.1.1 and run applets etc. 2) I can connect to Windows 7 (x64) and get file access to everything.
But: Any flashing tool for windows (with ADB) cannot "see" my device, and I very much doubt it that the driver is the problem since I get full access to drives and files on the tablet (USB-connected to Windows 7 x64). Do you have any thoughts about that? To me it seems most logical that a working windows-driver would also work with ADB or am I wrong about that?
I also tried the ADB (Windows) installation with SDK etc. Everything installs fluently with no errors but when I do the "adb devices" command no devices are listed at all ?? The command "ADB Shell" returns an error.
Since I know about the settings needed on the tablet I have: set USB Debug Mode to ON and everytime I plug it in I select "Mass Storage Mode" to get file access from Windows; and it works fine.
As stated above, everything works except "boot into recovery mode" and ADB being able to "see" my device. Not even CWM Rom Manager can boot into recovery mode ??
I want to be able to flash a new OS but recovery mode seems to be the only way apart from the USB to Windows. I cannott accept the notion that the device is "almost bricked" just from installing the wrong recovery image and now I cannot go back ..... (backup got lost in the process).
I have discovered that I am not the only one with this problem but I cannot find any solution (that actually works) anywhere.
Last "development" is this: I UN-rooted my device trying to get back OTA. I think that made things worse :\
Q: Is there a way to "wipe and re-install" without ADB or Recovery Mode /Fastboot ??
Update #1: I have tested ADB and FastBoot (Windows prompt) with two other devices, both Samsung Smartphones, and everything works like a charm. This tells us that it is definitely the tablet that's got a problem or two ;)
Upd #2: I found a log file in the cache folder on the tablet called "last_log" and one line got my attention: "TW_NO_REBOOT_BOOTLOADER := true" Isn't that a bit odd ??
Upd #3: Seems like internal sd is write protected. cwm boot manager and tw(e)rp manager cannot update files needed. bootanimation app works fine with root. that is so weird :-\