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Flash Empty VBMETA

robworkman
Enthusiastic Member
Posts: 9
Threads: 2
Joined: Sep 2020
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#1

01-11-2020, 09:41 PM


Hi,

I'm still not having much luck flashing an empty (signed) VBMETA file to my BDF M107 tablet.

I followed this post and was able to flash my empty VBMETA file, but the tablet got stuck at the logo screen upon reboot. I ended up re-flashing the FDL/FDL2/VBMETA images with BeTools to get the table back up and running.

Anytime I use the "--disable-verity" command along with fastboot flash, I get stuck at the "writing" message. Leaving that part out, I can flash either file... just if I use my version, I get stuck on the boot logo afterwards.

I've attached both the original file and my version in hopes that you can give me some pointers. I've also attached the info_image output for the files.

Thanks!


Attached Files
.txt vbmeta_custom info.txt Size: 3.2 KB  Downloads: 5
.img vbmeta_custom02.img Size: 1 MB  Downloads: 2
.img vbmeta_custom01.img Size: 1 MB  Downloads: 2
.img VBMA190003-ORIG.img Size: 1 MB  Downloads: 0
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X3non
Hovatek Representative
Posts: 19,153
Threads: 557
Joined: Jul 2014
Reputation: 326
#2

02-11-2020, 12:29 PM
(01-11-2020, 09:41 PM)robworkman Wrote:  Hi,

I'm still not having much luck flashing an empty (signed) VBMETA file to my BDF M107 tablet.

I followed this post and was able to flash my empty VBMETA file, but the tablet got stuck at the logo screen upon reboot. I ended up re-flashing the FDL/FDL2/VBMETA images with BeTools to get the table back up and running.

Anytime I use the "--disable-verity" command along with fastboot flash, I get stuck at the "writing" message. Leaving that part out, I can flash either file... just if I use my version, I get stuck on the boot logo afterwards.

I've attached both the original file and my version in hopes that you can give me some pointers. I've also attached the info_image output for the files.

Thanks!

very unlikely that empty vbmeta will work on this device, btw you need to unlock bootloader before attempting to flash custom images
try unlocking bootloader using the guide @ https://forum.hovatek.com/thread-32287.html
if successful, then you can attempt to root using the same procedures @ https://forum.hovatek.com/thread-32678.html

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(This post was last modified: 02-11-2020, 12:30 PM by X3non.)
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robworkman
Enthusiastic Member
Posts: 9
Threads: 2
Joined: Sep 2020
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#3

03-11-2020, 01:17 AM
Thank you... Bootloader is already unlocked.

I'll check the post on rooting, otherwise, I guess I'll have to sign the IMG files that I want to Flash.

I'd like to get TWRP running, and sing the device is treble compliant, I'd like to try an Android 10 or 11 GSI.
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X3non
Hovatek Representative
Posts: 19,153
Threads: 557
Joined: Jul 2014
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#4

03-11-2020, 06:29 PM
(03-11-2020, 01:17 AM)robworkman Wrote:  Thank you... Bootloader is already unlocked.

I'll check the post on rooting, otherwise, I guess I'll have to sign the IMG files that I want to Flash.

I'd like to get TWRP running, and sing the device is treble compliant, I'd like to try an Android 10 or 11 GSI.

for TWRP, you can try the tool @ https://forum.hovatek.com/thread-21669.html
for GSI, you'll have to search online for firmware links, we don't collect links to custom roms

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