Hi, I made a really big mess. After perusing through the threads, I read that you had to be on bootstack 39a to flash lollipop. I was on 24a, 4.4.2. I booted to recovery and backed up my system then flashed bootstack 39a and wiped cache. Sadly I am now getting secure booting error cause boot certification verify.
Update: I was able to get to recovery and was able to flash my backup file. However, while flashing the backup the screen suddenly died. I left it alone for a few minutes, now however it is unresponsive and wont event light up when plugged for charging. Help.. Thank you in advance.
Update: My device is not being recognized by adb. And the device manager is indicating the there are no drivers for the lg g2 vs980. Its marked with the yellow exclamation point. I think usb debugging got disabled when I flashed boot stack 39a. I've been trying to no avail to have it recognized constantly reinstalling lg drivers...
how about download mode ?
Related
Hi,
I was on a rooted android 4.4.2 official, when i tried to install custom recovery using Flashify.
https://play.google.com/store/apps/details?id=com.cgollner.flashify
There was the Secure booting error and booted normaly.I found out that this was not possible so i quit.
Today a got an update from LG so i installed it. The phone rebooted giving the Secure booting error, and it stayed black screen.
Googling i found this tread
http://forum.xda-developers.com/showthread.php?t=2582142
I folowed it but i thought since my phone had problem with it's recovery, just flashing the recovery.img would be ok.
I restarted the phone bat it would not start. It desplays the lg logo restarts, lg logo restarts.
I can boot the recovery but it does not work. When i press recover it just restarts.
I cant boot download mode or anything else, i have been googling the hole day.
I would apricciate your help. It is a one month old phone.....
Thanks
Skroutz said:
Hi,
I was on a rooted android 4.4.2 official, when i tried to install custom recovery using Flashify.
https://play.google.com/store/apps/details?id=com.cgollner.flashify
There was the Secure booting error and booted normaly.I found out that this was not possible so i quit.
Today a got an update from LG so i installed it. The phone rebooted giving the Secure booting error, and it stayed black screen.
Googling i found this tread
http://forum.xda-developers.com/showthread.php?t=2582142
I folowed it but i thought since my phone had problem with it's recovery, just flashing the recovery.img would be ok.
I restarted the phone bat it would not start. It desplays the lg logo restarts, lg logo restarts.
I can boot the recovery but it does not work. When i press recover it just restarts.
I cant boot download mode or anything else, i have been googling the hole day.
I would apricciate your help. It is a one month old phone.....
Thanks
Click to expand...
Click to collapse
are u stuck in cmw recovery??
Stock recovery.... :/
Sent from my GT-I9100 using XDA Free mobile app
Same Problem here! Exact Same
Also having this issue, stuck in the secure boot loop, can't get to download mode.
Im exactly the same - im stuck in TWRP and cant boot into Download mode at all - just get the LG Bootscreen then straight into TWRP Recovery no matter what i do
Did we all except some kind of update from LG........ i wonder if this the link here and is now a common problem?
Mine was this and i thought it was just an app update for the stock apps and now im stuck big time
Any luck guys or solutions then please post here so we can keep it together and help each other!
Yeah I got an OTA update for my D803-Bell model, upon restart entered the secure boot error loop.
Sounds like, via this thread that it's commonly happening to people who had TWRP or CWM (or even aborted / possibly never completed installs like me) got nailed.
As per that thread, and everything else, I've tried every option possible -- no download mode. Recovery mode doesn't restore anything, just resterts to lg logo -> secure boot error -> black screen. Shows as QSHSUSB_BULK in windows/linux, and I can see those 25 partitions in linux (but reflashing openrecoverytwrp__.img over the recovery partition didn't help. I'm waiting to find out how I can make my own copies of those various partitions listed, from another D803-Bell model I have access to. All the D803 .img files on those links in that thread, appear to not contain D803 Bell stuff, just Telus, Rogers, etc... so I'll likely have to source my own.
I just took a shot in the dark recommended by a friend -- and fixed my phone.
I zeroed out the 'fota' partition on the phone. As seen in this thread ; http://forum.xda-developers.com/showthread.php?t=2451696
Just did a dd if=/dev/zero overtop of the fota partition, which was 25 for me from my linux box. One quick power cycle later, and I'm fully functional again, and the OTA update that killed me is still showing as available again.
I'm in a very peculiar position here, where my LG G2 is stuck as the LG boot logo, but when plugged into my computer I have access to the internal storage. Here's how I got to this situation:
I previously owned a G2 on CM11 that had hardware issues. Before swapping it out due to those issues, I had made a backup using the package listed here, which created a few .img files, including boot.img.
On my new phone, I rooted, installed TWRP, made a backup of stock
Flashed Mahdi Rom
After flashing Mahdi Rom, my phone would immediately boot into fastboot, showing "fastboot started (new line) udc_start"
I did with the procedure listed here to be able to access download mode, and this was successful.
I then followed the procedure here to return to stock, but I got an error in LG FlashTools saying that I had the wrong model number. After a bit of digging around, it seems that this error may have been caused by the Mahdi Rom flash renaming my phone to "G2" instead of "d800".
After troubleshooting this for hours, I took a stab at flashing the boot.img file mentioned earlier through fastboot. Flashing this boot.img is what triggered the predicament I'm in now - I can access the phone's internal storage on my computer via USB, but it's stuck at the LG logo.
At this time, my phone will not ADB, fastboot, or enter recovery; I can only access download mode. When trying to enter recovery, it loads for about 1 second and then I'm kicked out and it goes back to the LG load screen.
Thank you in advance for any and all help
Try here http://forum.xda-developers.com/showthread.php?t=2687768
THANK YOU
MK45A said:
Try here http://forum.xda-developers.com/showthread.php?t=2687768
Click to expand...
Click to collapse
Holy **** it worked! Thank you for linking this, my D800 baby has been resurrected.
Guys I need urgent Help
Recently I was running AOSP based ROM and tried to flash RR ROM based on Android 5.1.1.
I was not being flashed and was giving error so I dont remember which bootloader or file I flashed to make RR Rom flashing possible.
Then I flashed Gapps and wiped Cache and Delvik and restarted the cell.
After Restart, it was stuck on bootloop. One thing not to forget, It remains stuck on bootloop for several times and finally boots up, and the first screen comes is Android upgrade that works on 96 apps. As soon as upgrade completes, it reboots and remains stuck on bootloop.
If i try to enter into recovery, it takes me to fastboot mode where blackscreen with like commands stating fastboot is displayed.
If i press the volume button up and plug in the cable while connected to Laptop, Download mode starts but Laptop doesn't detect any device.
On the other hand, if started in fastboot mode, ADB device is detected.
I have tried to install LG Drivers, Verizon Drivers and also universal ADB drivers but nothing has worked so far.
The device is not detected at all.
I have windows 10, also tried on windows 8.1 but same issue.
Even tried disabling Driver Signature enforce or updating system but still same issue.
Anyone who could be able to help will highly be appreciated.
I have a LG G2 D800. I had TWRP installed and using that TWRP I tried to install BlurOS. The installation instructions for this rom are:
Reboot to Recovery
Full wipe (Dalvik, Cache, System & Data)
Flash "BlurOS LG G2"
Flash Bootstack
reboot
I did all of them but the link provided for the Bootstack by the OP was dead (and still is) so I flashed the hybrid bootstack (which is what is recommended by the OP in the rom's thread due to the link being dead).
I don't know if that was the problem but after that, I only had a bootloop without TWRP or download mode and when I connected my device to a PC, I had about 11 drives mounted and asking to be formatted and recognised by the PC as qhsusb_bulk in device manager. So I then tried this but it made the device even worse and now it is unrecognisable by a PC.
When I turn on the device now, all I get is a bootloop with LG logo. If I connect it with a PC or charger while it is turned off, it turns on and gets in the bootloop. The PC shows no sign of recognition of the device (neither in Device Manager, nor in Disk Management) when I connect it via USB.
I have also tried this method in Ubuntu, but the device was not detected again.
I basically have no TWRP, no Download Mode no fastboot and no PC recognition so since I seem to be deeply bricked, I am willing to try anything.
You have to return the device back into the qhsusb_bulk you described above. Here is a tutorial..
So, I did brick my D802 in some way.
After a long history from cloudy g2-g3, rr, cm12, cm13, lineage 14.1, I clicked by mistake on the OTA of the lineage.
I thought I could stop the update once in the recovery, but I got stucked in the recovery bootloop. I got rid of it via recovery terminal, but system didn't boot. I tried reflashing lineage, nothing happened, I tried restoring a cm13 full backup, nothing happened, so I got back in download mode to restock with lollipop kdz (the one I used every time I restocked to change rom). It did not work, and I had to download a different KDZ to get to stock again.
Now, all the methods always used to root + recovery didn't work, so I manually rooted, installed the proper AUTOREC, but it didn't work (as I understand after hours of searching because supersu had updated himself in the meantime).
So I tried to install the TWRP image using flashify, it didn't work and corrupted something in my recovery. So i tried to unroot everything and reinstall the original root + supersu without letting him autoupdate. Not working.
Well, now I can boot and I can get in original lollipop rom, but I have no recovery and download mode appears but doesn't work anymore (once I had 3 COM ports when connected in download mode, now I can see only one; kdz flash does not sense the phone connected). When I try to open recovery I got the error "boot certification verify, secureboot error" in the top left corner of the screen, then a white page opens with the message "critical error" "demigod crash handler", volume up to download mode (that opens but does not work), volume down to reboot.
Now, I am stucked, I cannot find any suggestion of what to do to get the recovery working or to get the download mode working again.
Any help will be highly appreciated.
Thank you very much guys.
Not sure will it help but you may give it a try:
https://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076