Hard Brick BDF Tablet After Flashing VBMETA
Hard Brick BDF Tablet After Flashing VBMETA
(13-10-2020, 10:56 PM)robworkman Hi again, I made a bit of progress... if it can be called that.
I was able to get BeTools to read the XMLs after doing a rename. It also recognized the tablet when I plugged it in. Unfortunately, it would not begin to flash anything at all - just getting stuck on FDL. On one of the attempts, I unchecked FDL and FDL2 from the flash list and things looked like they were about to go. It tried to flash VBMETA, but gave an "Incompatible Partition" error.
After that, the tablet won't even power on. I've tried every combination of holding down buttions, unplugging, plugging in while standing upside-down, etc... and I just get a black screen. From the speakers, I can hear a hiss like it's trying to power on, it just won't go past the black screen. It won't even show the logo anymore.
Unfortunately, I might be out of luck on this one unless you have any other tips.
Thanks!
(18-10-2020, 05:10 AM)Hi, again. Thanks for the suggestions, but the battery is unfortunately not removable in this tablet - and I really don't want to break into it.
That said, I FINALLY ran into a bit of good luck! I grabbed an old Toshiba TECRA laptop from my basement on which I had installed Windows 7. Fortunately, it was much easier to install all the Spreadtrum drivers on that Operating System than Windows 10 (easier to bypass Driver Signing).
After doing that, I was able to get BeTools to recognize the tablet properly and it started flashing! I now have the tablet working again (with the bootloader still unlocked!).
Just in case it's of any interest to you, or can benefit anyone else, I've zipped the XML files as you requested. I've included both the original filename, and my renamed one to remove the Chinese characters. I don't see much difference between the 6 files, other than the file name - so I picked one at random to flash (which fortunately worked). If you see any key differences, I'd appreciate the info for future reference.
One final question though is do you by chance have a post on how to sign an Empty VBMETA file? I'd really like to flash TWRP recovery, but the "signing" seems to be getting in my way. I'd like to remove the need to have signed partitions... recovery, boot, system, etc.
Thanks again for your advice - and the info you have on this forum has been quite helpful.
Cheers!
(19-10-2020, 02:53 AM)robworkman(18-10-2020, 05:10 AM)Hi, again. Thanks for the suggestions, but the battery is unfortunately not removable in this tablet - and I really don't want to break into it.
That said, I FINALLY ran into a bit of good luck! I grabbed an old Toshiba TECRA laptop from my basement on which I had installed Windows 7. Fortunately, it was much easier to install all the Spreadtrum drivers on that Operating System than Windows 10 (easier to bypass Driver Signing).
After doing that, I was able to get BeTools to recognize the tablet properly and it started flashing! I now have the tablet working again (with the bootloader still unlocked!).
Just in case it's of any interest to you, or can benefit anyone else, I've zipped the XML files as you requested. I've included both the original filename, and my renamed one to remove the Chinese characters. I don't see much difference between the 6 files, other than the file name - so I picked one at random to flash (which fortunately worked). If you see any key differences, I'd appreciate the info for future reference.
One final question though is do you by chance have a post on how to sign an Empty VBMETA file? I'd really like to flash TWRP recovery, but the "signing" seems to be getting in my way. I'd like to remove the need to have signed partitions... recovery, boot, system, etc.
Thanks again for your advice - and the info you have on this forum has been quite helpful.
Cheers!
(23-10-2020, 03:40 AM)robworkman ...
Do you by chance also have a post on how to sign an Empty VBMETA file? I'd really like to flash TWRP recovery, but the "signing" seems to be getting in my way. I'd like to remove the need to have signed partitions... recovery, boot, system, etc.
Cheers