[Q] Stuck in download mode - G Pad 8.3 Q&A, Help & Troubleshooting

Hey all,
I recently put the lolipop AOSP rom onto my G Pad, but wanted to revert it back to the stock software.
I plugged it into the computer and tried using the recovery tool, but it did not work, so I put the G Pad into download mode and it gets to a point where it has downloaded the software and is deploying it, but then fails every time.
I tried the offline KDZ method, but when the support tool loads it checks the connected device and always tells me to unplug it and try again.
Does anyone have anything in mind I could try or requires more information to offer a suggestion to me?
Thank you in advance.

I was in the same position a few hours ago. I downloaded the official LG Support tool (drivers and tool available HERE). Launch the LG Support tool, go to Options -> Upgrade Recovery and follow the steps. It should dowload the latest available official formware (V50020D) and flash it to your tablet. I'd recommend a factory reset, since you have CM installed on it. This procedure didn't erase /data (I've done it twice while trying to flash a custom recovery on it). Then you must use LG Flash Tool 2014.zip to flash an older firmware that has a bootloader that allows installing of a custom recovery. After flashing V20B or V20A, you must root it and flash a custom recovery (I'd recommend THIS ONE). It seems a little complicated, but this is the only way to un-brick it (it worked for me).
Get the apk from THIS thread after rooting your tablet (it should flash TWRP 2.8).

Related

[Q] LG G Pro F240L, no recovery at all, and no root to flash one with

So I have an LG G Pro F240l
So essentially, because I flashed the wrong recovery (the F240k, as that's what I thought the phone was), this means I have no recovery.
I cannot root my phone, because basically the recovery doesn't exist.
I can use adb.
I can't do anything after booting other than use ADB, because "LG IMS has stopped working" will constantly appear and impede my ability to achieve anything (this occured after flashing the new lolipop update, which while it technically worked, I should have done a factory reset before doing it.
KDZ files are only the roms, I can flash those fine.
I have a 4.4 rom, and the new lolipop build in terms of those files.
I am unable to locate the tot or dll files I need for my F240l
First, removing LG IMS would make life easier, as that should theoretically fix the problem, making the OS at least useable.
Secondly, how would I go about getting myself a recovery that works (even the stock recover), and flashing it without already having a recovery?
Is there a way I can temporarily root the phone without going into recovery at all?
Please help, I'd rather not have a $160 paperweight..
Edit: I've gotten the ROM working, but I still have no way to root or install a recovery.
arbitrarygrill said:
So I have an LG G Pro F240l
So essentially, because I flashed the wrong recovery (the F240k, as that's what I thought the phone was), this means I have no recovery.
I cannot root my phone, because basically the recovery doesn't exist.
I can use adb.
I can't do anything after booting other than use ADB, because "LG IMS has stopped working" will constantly appear and impede my ability to achieve anything (this occured after flashing the new lolipop update, which while it technically worked, I should have done a factory reset before doing it.
KDZ files are only the roms, I can flash those fine.
I have a 4.4 rom, and the new lolipop build in terms of those files.
I am unable to locate the tot or dll files I need for my F240l
First, removing LG IMS would make life easier, as that should theoretically fix the problem, making the OS at least useable.
Secondly, how would I go about getting myself a recovery that works (even the stock recover), and flashing it without already having a recovery?
Is there a way I can temporarily root the phone without going into recovery at all?
Please help, I'd rather not have a $160 paperweight..
Edit: I've gotten the ROM working, but I still have no way to root or install a recovery.
Click to expand...
Click to collapse
Make sure you have LG Suite installed and of course all the drivers. Put the phone into download mode and engage Repair Upgrade Errors in LG Suite. You should get back to stock.
tanclo said:
Make sure you have LG Suite installed and of course all the drivers. Put the phone into download mode and engage Repair Upgrade Errors in LG Suite. You should get back to stock.
Click to expand...
Click to collapse
I just did this, all it did was re-flashed the same rom I already had (presumeably the .kdz) file. The recovery is still missing and only showing a an android with a compartment open and a red exclamation point.
arbitrarygrill said:
I just did this, all it did was re-flashed the same rom I already had (presumeably the .kdz) file. The recovery is still missing and only showing a an android with a compartment open and a red exclamation point.
Click to expand...
Click to collapse
This is a wild shot in the dark, but try holding vol down, home, power.. then wait for prompt and confirm hard reset with power button. then try the lg suite "repair upgrade" again while in download mode. Hope you can sort it out.

Recover files from lg g2 bricked

So this is not my first time bricking my lg g2 ls980, I know I can go and flash the stock firmware but this time I don't want to lose the files on it because I have some important ones, the thing is my phone have the recovery 'secure booting error' and I CAN boot to download mode, I was using the rom 5.1.1 ressurection remix but I decidec to switch to cloudy g3 3.3 and when I tried to install the kk bootloader using a tool (this one: http://forum.xda-developers.com/lg-g2/general/d802-bootloader-changer-1-1-jb-kk-lp-t3104380) I didn't check a thing in the end (I don't remenber at all but I think it was to flash a custom twrp to prevent what happened to me) so now I have really good looking useless phone. (I have a nandroid backup on the phone too to prevent any problem except the one with the twrp )
I just want one of these 2 thing:
1-being able to flash a working twrp recovery via download mode or somehow (I really don't care the how)
or
2-A way to recovery my files before flashing the stock firmware
I know I may sound greedy but I really need those files and I know if I can do one of the 2 methods above, I'll be able to get those files.
Thanks in advance.
ps: if need more specific information, don't hesitate to ask

Need help. Flashed incorrect rom on my Vk810.

Im not that experienced but have been playing around trying to learn about roms etc. I used the flashify app to flash a rom but accidentally used the wrong rom. I grabbed the one for the v500 model instad of vk810. Needless to say it messed up. When the tablet boots it stays on the boot image for several minutes then it will attemp to update apps but gets stuck there. I have tried many fixes. The LG mobile tool doesnt work. I try to update recovery. It downloads the update but wont install. I cant force the tablet into recovery with button pushes. I have been able to put the tablet into twrp 2.7.8.1 recovery with droid explorer. From there I have tried to flash about 3 different roms that all say they should work for the vk810 but i get errors with all of them and they fail. Im not sure if there is any hope to get the tablet working again but hope someone can help.
First, I don't think you can use Flashify to flash a whole ROM at all. Definitely not recommended, even if it's is supposed to be capable of doing that. I haven't tested flashing ROMs with it so no idea if it can work or not.
Can you put it in Download mode? If so, install the Verizon LG drivers, reboot the PC and try LG Flash Tool 2014 with the 11A KDZ, you can get the KDZ from the link in my signature. It's easiest to root and put TWRP back on that old stock ROM.
FYI it would have to be in Download mode for the mobile tool to work - just in case you didn't know or didn't have it in Download mode. LG Flash Tool 2014 does the same thing as the mobile tool except the mobile tool re-downloads the newest KDZ every time you try it unless you hack it. It's much easier just downloading the KDZ separately and keeping it on file for times like this to flash with LG Flash Tool 2014.
Just remember, if you use LG Flash Tool 2014, ignore any error it throws at you. Just drag the dialog boxes out of your way, don't press any buttons in error dialogs. 99% of the time, if you just ignore them within 10-20 minutes it'll have successfully flashed your VK810 anyway.
Also, once you install the drivers and reboot, put your original USB cable that came with the VK810 into a USB 2.0 port on the PC, with the tablet completely off, hold the Up Volume button in, connect the tablet end of the USB cable and keep the Up Volume button pressed for another second or two, and you should see a very dim "Download Mode" graphic in the center of the screen. It's very hard to see. The first time you connect the tablet in Download mode to a different USB 2.0 port or Windows installation, it can take up to 10 minutes to actually load the driver you previously installed. Look in Device Manager under the Modem section to see when the driver is fully loaded by looking for the LG device entry there.
Question: I assume you mean TWRP v2.8.7.1, but I was just wondering where you found 2.8.7.1? I've only found 2.8.7.0, not that it's a big deal.

Root issues with LG Optimus G

I'm having issues with a LG Optimus G. I can't access Recovery or Bootloader. I can't even root it. When I use Root Checker, it says something it's wrong with the actual root.
All I wanna do, it's to install a custom ROM. But that seems impossible since I can't even get into recovery. I installed a KDZ but even then it won't work.
Download Mode, seems to be working. I tried rooting with the bat file, but nothing, it won't work!
I followed the Unbrick Tutorial, but nothing.
Any ideas?
Thanks
I used this Root on E975 with Stock 4.4.2 and it worked.
There is also a detailed description how to do it right.
You can unlock the Bootloader with FreeGee after you've rooted the device.
Then i would recommend you flash TRWP 2.8.7.0
P.s.
But you also can try towelroot or maybe King Root but i suggest the first Methode.
Thanks! King Root did work! Now it's rooted, still I can't install recovery I tried with FreeGee but it won't work it says "Perfoming action" for about an hour. Also tried with Rom Mananger but nothing.. it won't install it.
I keep getting the error "Secure Booting Error! Cause : boot certification verify" each time I tried to boot into recovery.
Maybe re-flash the last original KDZ file for your device first and then do the common steps -> Root -> Unlock Bootloader -> Flash Custom Recovery
You can Boot into download mode by "Hold VolUp + VolDn and put in the Charger cable connected with your Computer"
Then you can try the Original LG Software to "Reset" the device or use the LG Flash Tool 2014 to offline Flash a KDZ file.
KDZ for you device you can get here or use the Original LG Firmware tool to download for your device.
Get Sure you backup all the data you need before, becasue this Method will "clean" your device completly!
Edit:
Get sure you use the last USB Drivers, i've used the LGMobileDriver_WHQL_Ver_4.0.4.exe

HELP! Fully wiped. Only Recovery mode is possible. Help me flash a stable ROM.

What I've done:
1. Tried LGNPST method but phone never showed up in the software
2. Tried flashing with LG official tool. That always resulted phone disconnected.[I did put my phone into download mode]
3.Tried almost all KDZ_FW_UPDATE methods they always stopped either in not responding-> close program OR extraction error
4. Tried sideloading using adb but they also resulted in "bad file" even push didn't work saying no permission to write(I think)
for adb I tried converted .zip of kdz using some guide in xda.
My phone is totally clean now. I can boot to Recovery or Download Mode. There's no file that's flashable right now. I'm in Philz touch recovery
This actually happened while I was flashing to unlock bootloader and charge went low.
I desperately want it to function properly. Please anyone with any new or updated methods, help me.
When normally trying to boot up, Google logo comes and phone switches off.
I was in F180L converted to E975.
I've INDIAN(20a) version kdz also european(10h) and korean(30e).

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