Cant get into download mode but phone boots! - Sprint LG G3

Hi i was trying to root my lg g3 ls990 but i failed and now i cant get the download mode to work, how can i fix this? the phone boots normally to the system but when i try to get into download mode i get ''certification boot security''. i wanna know how to fix the download mode to be able again to try to root it

monblink said:
Hi i was trying to root my lg g3 ls990 but i failed and now i cant get the download mode to work, how can i fix this? the phone boots normally to the system but when i try to get into download mode i get ''certification boot security''. i wanna know how to fix the download mode to be able again to try to root it
Click to expand...
Click to collapse
maybe LAF partition is damaged.
you can try hard brick recovery to flash all the partitions and you will be good to go. but you need to disassemble the phone

fromgeorgia said:
maybe LAF partition is damaged.
you can try hard brick recovery to flash all the partitions and you will be good to go. but you need to disassemble the phone
Click to expand...
Click to collapse
theres a tutorial on how to do this?

Yeap.
http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
I have used it several times. Good luck.

Related

clockworkmod recovery ONLY

Welcome
I root phone, unlock the bootloader and everything worked nicely. Unfortunately, after restarting the phone only starts ClockworkMod recovery.
I tried to install a new soft CWM 10 of zip and on the same thing, to restore a copy of the original firmware also does not help, always on the LG logo ClockworkMod recovery starts. Is there any possibility to restore the phone back to life?
P.S. Sorry for my english and thx for help.
wendrol said:
Welcome
I root phone, unlock the bootloader and everything worked nicely. Unfortunately, after restarting the phone only starts ClockworkMod recovery.
I tried to install a new soft CWM 10 of zip and on the same thing, to restore a copy of the original firmware also does not help, always on the LG logo ClockworkMod recovery starts. Is there any possibility to restore the phone back to life?
P.S. Sorry for my english and thx for help.
Click to expand...
Click to collapse
What specific model do you have? P760, P765, P768, P769?
Have you tried to flash the stock KDZ?
kevev said:
What specific model do you have? P760, P765, P768, P769?
Have you tried to flash the stock KDZ?
Click to expand...
Click to collapse
P760
I can't flash because KDZ soft doesn't see my phone
wendrol said:
P760
I can't flash because KDZ soft doesn't see my phone
Click to expand...
Click to collapse
Have you tried in S/W Update mode?
Have you tried fastboot? http://forum.xda-developers.com/showpost.php?p=43969494&postcount=95
kevev said:
Have you tried in S/W Update mode?
Have you tried fastboot? http://forum.xda-developers.com/showpost.php?p=43969494&postcount=95
Click to expand...
Click to collapse
What I should choose in fastboot menu? I do clockworkdod_recovery.img, and now i cant turn on my phone but still fastboot works.
also S/W update mode wouldn't start :/
wendrol said:
Welcome
I root phone, unlock the bootloader and everything worked nicely. Unfortunately, after restarting the phone only starts ClockworkMod recovery.
I tried to install a new soft CWM 10 of zip and on the same thing, to restore a copy of the original firmware also does not help, always on the LG logo ClockworkMod recovery starts. Is there any possibility to restore the phone back to life?
P.S. Sorry for my english and thx for help.
Click to expand...
Click to collapse
This thread,http://forum.xda-developers.com/showthread.php?t=2386676, it's look like the same problem as yours, and he solved it.
artit said:
I flashed the original LG recovery.img
Click to expand...
Click to collapse
Where I can find this recovery.img?
wendrol said:
Where I can find this recovery.img?
Click to expand...
Click to collapse
You can extract it from your kdz, with guide from Cmahendra and kuma82, please visit http://forum.xda-developers.com/showthread.php?t=2315727
artit said:
You can extract it from your kdz, with guide from Cmahendra and kuma82, please visit http://forum.xda-developers.com/showthread.php?t=2315727
Click to expand...
Click to collapse
Great THX for this!
I use commands:
fastboot flash recovery recovery.img/boot and u-boot and now phone i turning on but after logo i see lying android with red triangle.
wendrol said:
Great THX for this!
I use commands:
fastboot flash recovery recovery.img/boot and u-boot and now phone i turning on but after logo i see lying android with red triangle.
Click to expand...
Click to collapse
Please try offline flash again. If your computer cannot detect phone try to update lg usb driver to latest version, I read about this in some thread. If that don't help try to use LG mobile support tool to recovery your phone.
artit said:
Please try offline flash again. If your computer cannot detect phone try to update lg usb driver to latest version, I read about this in some thread. If that don't help try to use LG mobile support tool to recovery your phone.
Click to expand...
Click to collapse
Ok, I turn on phone in s/w mode without battery and run LGMobile Support Tool, next I putt battery and choose actualization. After this phone works fine soo next i restart in fastboot mode and flash clockworkmod recovery.img and finally everything is fine!
thanks a lot for everybody who help me

Security Error and Black Screen (Download Mode)

Hello,
I need your help.
I've a LS990 for international use with Lollipop (5.0.1 and ZV8) and it was working fine. I tried to unlock the G3 so, I needed root so I used LG Root Script but by mistake I didn't notice I was using LG Root Script 2.4 for ZVA instead 1.2 or 1.3. Now, I can't access to internet through WiFi (I can connect to WiFi Networks but when I try to browse it has DNS problems or server problems, I tried other WiFi networks and same problem), I can't unlock it, I can't use 3G data and well, I thought to flash to stock rom and now the download mode has secure booting error certification verify and my laptop only recognizes it as QHSUSB_bulk in Device Manager. I cant use LG Flash Tool.
- I can access to Recovery Mode
- I can access to the System (everything is working fine except browsing)
Does anyone know how can I flash to stock ROM or fix these problems? I need root to unlock it and flash or update to ZVA and ZVB.
I was reading other threads but nothing.
Thank you
enrique_b06 said:
Hello,
I need your help.
I've a LS990 for international use with Lollipop (5.0.1 and ZV8) and it was working fine. I tried to unlock the G3 so, I needed root so I used LG Root Script but by mistake I didn't notice I was using LG Root Script 2.4 for ZVA instead 1.2 or 1.3. Now, I can't access to internet through WiFi (I can connect to WiFi Networks but when I try to browse it has DNS problems or server problems, I tried other WiFi networks and same problem), I can't unlock it, I can't use 3G data and well, I thought to flash to stock rom and now the download mode has secure booting error certification verify and my laptop only recognizes it as QHSUSB_bulk in Device Manager. I cant use LG Flash Tool.
- I can access to Recovery Mode
- I can access to the System (everything is working fine except browsing)
Does anyone know how can I flash to stock ROM or fix these problems? I need root to unlock it and flash or update to ZVA and ZVB.
I was reading other threads but nothing.
Thank you
Click to expand...
Click to collapse
Reboot to recovery and flash the rom from the following thread. http://forum.xda-developers.com/spr...990-zvb-root-method-zvb-rooted-stock-t3211878
Also to fix download mode flash laf.img for your bootloader version. You can do that through recovery or in a working rom with root using the dd command. The img files for all of the partitions can be found at the following link. http://downloads.codefi.re/autoprime/LG/LG_G3/LS990/stock_partitions
l33tlinuxh4x0r said:
Reboot to recovery and flash the rom from the following thread. http://forum.xda-developers.com/spr...990-zvb-root-method-zvb-rooted-stock-t3211878
Also to fix download mode flash laf.img for your bootloader version. You can do that through recovery or in a working rom with root using the dd command. The img files for all of the partitions can be found at the following link. http://downloads.codefi.re/autoprime/LG/LG_G3/LS990/stock_partitions
Click to expand...
Click to collapse
Hi, thank you. I guess it doesnt works because your links are about ZVB and I've ZV8 (eight).
Also, I don't TWRP, only stock recovery.
enrique_b06 said:
Hi, thank you. I guess it doesnt works because your links are about ZVB and I've ZV8 (eight).
Also, I don't TWRP, only stock recovery.
Click to expand...
Click to collapse
You could try http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359 and you don't even have to open your phone up or short it as it is already seen as QHSUSB_bulk just follow the rest of the steps.
just flash your zva laf partition and then the sbl1 to reboot
l33tlinuxh4x0r said:
You could try http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359 and you don't even have to open your phone up or short it as it is already seen as QHSUSB_bulk just follow the rest of the steps.
just flash your zva laf partition and then the sbl1 to reboot
Click to expand...
Click to collapse
Hi, I was reading that thread before your post and yes, it worked for me. I tried many things and nothing but this worked and without open my phone. I used ZV8.TOT and now I can browse and use Download Mode. At this moment I'm upgrading to ZVA and then ZVB.
Thank you so much for your help.
enrique_b06 said:
Hi, I was reading that thread before your post and yes, it worked for me. I tried many things and nothing but this worked and without open my phone. I used ZV8.TOT and now I can browse and use Download Mode. At this moment I'm upgrading to ZVA and then ZVB.
Thank you so much for your help.
Click to expand...
Click to collapse
Similar problm..but i cant boot to recovery also(whr it shows various option like wipe, wipe cache etc)... Pls help
Sent from my LGLS990 using XDA Forums
Vicks88ster said:
Similar problm..but i cant boot to recovery also(whr it shows various option like wipe, wipe cache etc)... Pls help
Sent from my LGLS990 using XDA Forums
Click to expand...
Click to collapse
I am sure this will help.
http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
Thanks..m gonna try this sooner...
LS990 ZVC .tot
fromgeorgia said:
I am sure this will help.
http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
Click to expand...
Click to collapse
Can anyone share this wid me.. m running on ZVC now

I brick my RS988, but I still have twrp.

So I rooted my device and life was good than I made something a system app and then I deleted it. :facepalm: Next thing I know I reboot and it comes to the unable to test corruption screen and the led light keeps flashing blue. I still have TWRP. Can it be saved?
I have access to fastboot via the bootloader screen. Can I flash from there?
Edit: and I a guess as soon as you start in twrp adp is activated . So I only need the kdz?
You can try the KDZ because that's basically fool proof, but you can also try to manually flash the partition image for the one that's broken. I think that's the system partition in your case.
PleaseHelpMe12 said:
I have access to fastboot via the bootloader screen. Can I flash from there?
Edit: and I a guess as soon as you start in twrp adp is activated . So I only need the kdz?
Click to expand...
Click to collapse
You're best bet would be to put it in download mode and flash the latest kdz using LGUP or uppercut. I've always used the original LGUP but seems like most now use uppercut and seems like uppercut is probably a better choice. You will have to reflash TWRP after you get back up and running and root as well as using the kdz will replace TWRP.
Sweet. It's alive again, but I can't access bootloader via adb reboot bootloader.
Edit: nevermind. I didn't update.

Soft bricked H930 - help!

My attempt to root my H930 went very wrong... So I started by unlocking the bootloader and flashing TWRP. After that I didn't manage to get in to TWRP. Instead it started to boot, but froze eventually. Now I can't get it to boot (It gets stuck on initial LG V30 screen), and I can't power it off. I can get into stock recovery (apparently it got far enough to replace TWRP) and download mode with hardware button combinations. But the download mode seems to be different from fastboot mode (looks different on phone, and fastboot can't find it) so I can't try to flash TWRP again. I also managed to get it into a check IMEI + S/N mode by holding all buttons at once...
I've tried flashing H93010f_00_OPEN_EU_OP_0925.kdz with LG UP/Uppercut (since I can get to download mode). It went fine but the situation is the same - no boot, no way to power off.
A factory reset from stock recovery doesn't help either.
Please advice..
Alright, I acually got in to fastboot mode even though I'm not quite sure how.. I basically first went in to download mode, and then pressed vol down + power to reboot, and ended up in fastboot mode. From there I flashed twrp again. And this time I managed to get in to TWRP. Since I didn't have a working ROM I went ahead and wiped all but external sdcard and tried flashing Boombox. It resulted in an "Error: 1"..
So I tried flashing H93010f_00_OPEN_EU_OP_0925.kdz from LGUP again, and now I'm back to a device that doesn't boot again.
Which root are you trying to flash? TWRP also is in alpha at the very best at this point. Can you extract the KDZ and use fastboot to flash the .img files inside, assuming they have .img files inside of the KDZ?
jcsww said:
Which root are you trying to flash? TWRP also is in alpha at the very best at this point. Can you extract the KDZ and use fastboot to flash the .img files inside, assuming they have .img files inside of the KDZ?
Click to expand...
Click to collapse
I'm not trying to flash any root. I was planning on flashing Magisk but never got that far. At this point I'm just trying to get a working phone. I read about extracing img files from kdz but the tool didn't work in my virtual WinXP machine so I'm trying to fire up a Win10 machine now (I'm on mac).
Meanwhile I tried flashing boot and system from "LGH930GAT-00-V10c-222-01-OCT-12-2017+0.zip" but that resulted in the phone automatically booting into TWRP... That can't be good.
egendomligt said:
I'm not trying to flash any root. I was planning on flashing Magisk but never got that far. At this point I'm just trying to get a working phone. I read about extracing img files from kdz but the tool didn't work in my virtual WinXP machine so I'm trying to fire up a Win10 machine now (I'm on mac).
Meanwhile I tried flashing boot and system from "LGH930GAT-00-V10c-222-01-OCT-12-2017+0.zip" but that resulted in the phone automatically booting into TWRP... That can't be good.
Click to expand...
Click to collapse
With some other phones, like Nexus devices. Flashing older boot images can cause bootloops. I don't know if this is the case with your device but it might be something to consider. Have you tried flashing the complete latest factory image to see if that solves the bootloop?
jcsww said:
With some other phones, like Nexus devices. Flashing older boot images can cause bootloops. I don't know if this is the case with your device but it might be something to consider. Have you tried flashing the complete latest factory image to see if that solves the bootloop?
Click to expand...
Click to collapse
Unfortunately I haven't been able to get able to get a hold of a KDZ other than for 10f. I'd like to try 10v.
I got the extraction tool working in a Win10 box now, and I'm trying to extract boot and system images from the 10f KDZ...
egendomligt said:
Unfortunately I haven't been able to get able to get a hold of a KDZ other than for 10f. I'd like to try 10v.
I got the extraction tool working in a Win10 box now, and I'm trying to extract boot and system images from the 10f KDZ...
Click to expand...
Click to collapse
Best of luck!
Nope, that didn't work either. fastboot threw an error telling me the system image was too big for the partition.. At least the system image from the 10c dump fit properly..
So I guess my best bets right now are to either get a hold of a 10v KDZ, or wait for something flashable through TWRP.. :/
Is there like a lastlog for system boot that would be reachable from TWRP/adb..? It would sure be nice to see whats going wrong...
egendomligt said:
Nope, that didn't work either. fastboot threw an error telling me the system image was too big for the partition.. At least the system image from the 10c dump fit properly..
So I guess my best bets right now are to either get a hold of a 10v KDZ, or wait for something flashable through TWRP.. :/
Is there like a lastlog for system boot that would be reachable from TWRP/adb..? It would sure be nice to see whats going wrong...
Click to expand...
Click to collapse
No clue!
Ok, I got it to boot again!
* I formatted data (not wiped) inTWRP - Not sure if this step was relevant
* Flashed stock recovery/boot/system from a KDZ dump called "LGH930GAT-00-V10c-222-01-OCT-12-2017+0" - found the link in some other thread here
* Rebooted and watched it boot - went in to "Android is upgrading..."-screen - rebooted - then booted normally.
Thanks for the help and a special thanks to @Perkash who helped me out through PM.

Bricked lg g8x thinq sprint 20h

Hi everyone,my phone totally dead and the only 1 working is edl mode.All my partition backup corrupted.If anyone can help me provide all backup partition i really appreciate it.
You can attempt to flash the KDZ and repair your phone. Try that first, and I'll upload my custom ROMed partitions if necessary.
Xryphon said:
You can attempt to flash the KDZ and repair your phone. Try that first, and I'll upload my custom ROMed partitions if necessary.
Click to expand...
Click to collapse
It useless now,i accidentally erase entire flash partition.
Xryphon said:
You can attempt to flash the KDZ and repair your phone. Try that first, and I'll upload my custom ROMed partitions if necessary.
Click to expand...
Click to collapse
Xryphon said:
You can attempt to flash the KDZ and repair your phone. Try that first, and I'll upload my custom ROMed partitions if necessary.
Click to expand...
Click to collapse
I found another solution,but it is impossible.Extract kdz rom to bin firmware.
Xryphon said:
You can attempt to flash the KDZ and repair your phone. Try that first, and I'll upload my custom ROMed partitions if necessary
Click to expand...
Click to collapse
Done,so can u upload ur partition?
Custom ROMed? I'll attempt to get the normal ones if needed.
whatever, as long as my phone can be repaired
Xryphon said:
Custom ROMed? I'll attempt to get the normal ones if needed.
Click to expand...
Click to collapse
Sure, I'll wait for it
My phone get bricked,no download mode,no fastboot mode only edl mode working.But my phone not have any partition anymore,so can someone help me provide partition,im really need it
Azs5165 said:
My phone get bricked,no download mode,no fastboot mode only edl mode working.But my phone not have any partition anymore,so can someone help me provide partition,im really need it
Click to expand...
Click to collapse
If you still have problems, I can send you the partitions
Raify4 said:
If you still have problems, I can send you the partitions
Click to expand...
Click to collapse
Thank you so much,i really need all partitions..Im really2 need it
Raify4 said:
If you still have problems, I can send you the partitions
Click to expand...
Click to collapse
Ur phone is lg g8x sprint too?
Azs5165 said:
Ur phone is lg g8x sprint too?
Click to expand...
Click to collapse
yes 850um
I don't have the stock system (broken)
but if the laf boot abl
with that you can use kdz

			
				
https://forum.xda-developers.com/t/tutorial-crossflash-bypass-opid-mismatched-error.4345963/page-5 u can try it . new method kdz crossflash.
lg g8x ,LM_g850EWM not getting into fastboot mode, tried volume down and connecting cable also with using adb command ,it just get restart phone , please help me getting into fastboot. bootloader is unlocked. thank you.
nithish_gwd said:
lg g8x ,LM_g850EWM not getting into fastboot mode, tried volume down and connecting cable also with using adb command ,it just get restart phone , please help me getting into fastboot. bootloader is unlocked. thank you.
Click to expand...
Click to collapse
Get the kdz you want and run it through this kdz extractor: https://gist.github.com/haise0/f3c1f24b0a7a9150603dfd00985c0042. Then flash each of them in qfil after you backed up your partitions. Then you should be able to flash the phone in LGUP. I lost my serial in the process but the phone works after having been stuck in a fastboot loop.

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