I tried loading a cm12 nightly for a vs980. Kept failing so I tried loading a 39A bootstack from xdabbeb. Now I get the boot certification verify secure booting error when it tries to boot. I try to restore a nandroid from before all of this and still get the boot error. I tried flashing a xdabbeb 27a (what I was on before...and matches the nandroid), but still get the boot error.
Any ideas?
Did you tried doing a kdz o tot restore?
I have not. I guess I was hanging on to my old nandriod with too much hope.
Hehehe, try to kdz and then restore with the nandroid, worst that could happen is it wont work.
When you flash a 39a LP rom you have to flash the 12b bootloader from xdabbeb's thread, reboot into recovery, I then flash the bootstack of whatever rom I'm going to flash and I haven't ran into the secure boot error since.
Related
I flashed the new 39A Rom. Works great but battery life sucks. As such, I want to restore a 24A ROM that I backed up before flashing the 39A. So I when restoring the 24A backed up ROM, I flash Xdebs 24A bootloader, then restore the 24A ROM. However, I get an insecure boot error when the 24A ROM boots up. I can restore the 39A backup but really want the 24A to restore.
Any suggestions? Is it because I'm on a bumped recovery, TWRP 2.8.5.1 vs a previous version loki'ed recovery? I tried flashing a 2.8.0.1 recovery from my 2.8.5.1 recovery but the flash failed.
Open to suggestions. Thanks.
Is there a chance your 24A rom was not bumped? If that's the case, you will need to flash the individual 12b bootloader (see faq #3 in the Resource thread) after your flash the 24a bootstack. Can't hurt to try either way since 12b works with both loki and bump.
Go back to 12b
h_10 said:
I flashed the new 39A Rom. Works great but battery life sucks. As such, I want to restore a 24A ROM that I backed up before flashing the 39A. So I when restoring the 24A backed up ROM, I flash Xdebs 24A bootloader, then restore the 24A ROM. However, I get an insecure boot error when the 24A ROM boots up. I can restore the 39A backup but really want the 24A to restore.
Any suggestions? Is it because I'm on a bumped recovery, TWRP 2.8.5.1 vs a previous version loki'ed recovery? I tried flashing a 2.8.0.1 recovery from my 2.8.5.1 recovery but the flash failed.
Open to suggestions. Thanks.
Click to expand...
Click to collapse
Go back to 12b.
XDAbbeb has some updated information for the VS980 that I think everyone with the device should know.
http://forum.xda-developers.com/verizon-g2/development/vs980-resources-bootstacks-unofficial-t3050777
Here are the two posts I made when initially dealing with this issue.
http://forum.xda-developers.com/showpost.php?p=61190258&postcount=5972
http://forum.xda-developers.com/showpost.php?p=61198589&postcount=5984
My G2 remains at the second boot screen indefinitely when running 39A bootloader and a 39A rom. I've tried xdabbeb 3.1.2 and his stock (rooted) G2 lollipop roms multiple times, with no luck.
Quick rundown:
Was on 24A, then to 26A, then to 39A with xdabbeb 3.x rom. Worked perfectly. Did a bonehead move and tried to restore back to 24a backup without modifying bootloader. Resulted in boot certification verify error, couldn't get into recovery etc.. I flashed back to 24a stock kdz using lg flash tool, rooted, etc and got back to working 26a rom. Now I cannot get a 39A rom to get passed the second boot screen (Verizon logo on stock). I follow the process meticulously. Flash 39a, reboot, wipe, flash rom, reboot, aaaand its stuck. I can then boot into recovery, wipe, flash 26a bootloader, 12b bootstack, and flash my 26a rom backup to get a working phone.
Any idea why I can't boot into a 39a rom subsequently after getting the boot certification verify error and having to restore to 100% bone stock? Considering I can successfully boot into a 24a or 26a rom, I'm not sure what to try.
Thanks. I really want to get on lollipop again.
tried a different 39a bumped bootstack and I was able to successfully flash and boot into a lollipop 5.1.1 based rom. consider this solved
I was following the instruction in http://forum.xda-developers.com/tmobile-g4/development/stock-h811-20i-images-kdz-flashable-t3308227 to install TWRP using adb and fastboot and I'm pretty sure I messed up because once I installed a ROM(AOKP) through TWRP and rebooted I get the attached error in a boot loop. As far as I can tell it seems I'm missing the /data partition and that is causing a crash which it tries to recover from by rebooting. Before I started I was on 6.0 official with no root or TWRP.
I'd appreciate in help in figuring out if this is fixable and if so how.
Thank you.
Use LG UP to Refurbish and flash a 10n or 20i Stock .kdz.
Long time flasher here, but I'm trying to do something I often don't do - go back to a stock rooted setup.
When I try to flash the factory images (flash-all.sh) it always errors-out saying it can't find the system.img. So I fastboot flash each img manually. The system boots fine.
But as soon as I flash TWRP into the recovery partition, there is an error message at boot that the system is corrupted and to wipe the data.
What's the trick to get this working? Do I need to flash an insecure boot img first?
Thanks for the info!
That system corruption message is normal when totally stock. You need to flash a modified boot image or custom kernel, which can be found in the forums. That will resolve the corruption message.
I rooted and flashed CM14 ROM for the H811 G4. had to use fastboot boot recovery command because flashing recovery didn't work. ROM loaded/worked totally fine, went to flash Super SU in recovery, phone flashed it, rebooted and then didnt boot up again. Stuck on the CM14 logo, tried flashing stock KDZ, kept getting errors like unable to connect. Any ideas on how to get this thing back up and running?