Develop Bugs

can't root my lg g pad

I need help. I recently bought a lg g pad and I have some issues transferring data through usb, Its weird , since I can tranfer some files but I cannot transfer others. Anyway I tried to root it but unfortunately I couldn't. I've attached the command script window so you can see the error.
Could it be related to the fact that the tablet has issues transferring files???? Can anyone help me??? Thanks!!

Try to root with towelroot. You can have a look over here:
http://forum.xda-developers.com/lg-g-pad-83/help/install-custom-recovery-t2791785
Post #3, just do the points from 1 to 4.

Unbricking LG G Pad in QHSUSB_DLOAD mode

Hello
This is the process that I used to unbrick the LG G Pad 8.3 tablet.
Note 1: The operating system on my PC is Windows XP SP3 x86
Note 2: The same process should also work on LG G Pad 10.1 (With a different .tot file)
1. First of all you should make sure that the G Pad is detected when connected to the PC.
The device should be seen as QHSUSB_DLOAD in Other Devices section in Device Manager.
hxxp://i.imgur.com/IawJZq0.jpg
2. Install the QHSUSB Driver for your operating system.
The driver can be found here:
hxxp://mega.nz/#!HlpViaTJ!NPACjSQtTjGWdYIj3kHO3bGfmAotaSSQindmgRY9VJ4
I have used the driver from the "checked" folder.
Reconnect the tablet and you should now see the device as Qualcomm HS-USB QDLoader 9008 (COMxx) under the Ports section in Device Manager.
Take a note of the COM port number.
hxxp://i.imgur.com/IR7uUCB.png
3. Download the .tot image file for you tablet model.
I have used the one from here (LG G Pad 8.3 V500 4.4.2):
hxxp://androidfilehost.com/?fid=23329332407581518
4. Now you need the LG BoardDiag tool.
Download this one from here:
hxxp://mega.nz/#!XwgkXTAR!JnAAXKBQoezT7CcxRSVkSQlPFr4AXcvfm6oJbw4bht4
Please use only this one even if you have another BoardDiag. I have tried other versions and this was the only one that worked. For the other versions I always got some error:
failed during loading flash programmer
or
device not found in dload trying flash programmer
With this tool we will extract the .tot rom image first.
Unrar the archive and open BoardDiag3.99c application.
Click on the ... button next to BIN from the Image Extraction section on the bottom of the BoardDiag application and browse to the .tot file you downloaded at step 3.
Then click on the ... button next to DIR and browse to a folder to extract the files in.
Click on the Extract button and wait for the files to be extracted.
After the extraction is complete, close the BoardDiag application.
hxxp://i.imgur.com/Kw0ZhUv.jpg
5. Now we will perform some cheks on the tablet.
Open the BoardDiag application again.
Now select the AP check and EMMC TEST checkboxes from the Board Diag Test section on the top-left.
Also choose the G-pro (APQ8064) on the AP Chipset dropdown selection box. Choose the Com Port that you took a note of at step 2. Select as the Target Dir the folder where you extracted the .tot image file at step 4. These settings are in the top-right side of the BoardDiag application. Make no other changes to the settings.
Now Click on the big START button and wait for the checks to be made.
If everything is OK you should see under the Test Results section the green text PASS both under the AP and EMMC. Leave the BoardDiag application open. Now you can proceed to step 6.
6. Now we will Flash the files to the tablet.
Now you will also check the SDRAM TEST checkbox on the left top side of the BoardDiag application. The other settings were already made in step 5. Click the START button again.
After performing the checks you should see that the files from the image (aboot.mbn, boot.mbn, etc.) are written to the tablet.
After that, the BoardDiag tried to reset the tablet, but it failed and it ended with FAIL for SDRAM under the Test Results section. But the files were already written on the tablet.
7. After that I disconnected and reconnected the tablet to the PC. Nothing was detected, or so I thought, because I could see that in Device Manager something was happening. It was like refreshing itself every 5 seconds or so. I disconnected the tablet from the PC and I plugged in the wall charger. It turns out that the battery had no power.
After a few minutes the LG logo appeared on the screen. Nothing else was happening but I could see the LG logo. I left the tablet to charge the battery for at LEAST 3 hours. If your tablet battery is also discharged you should plug your tablet to the charger for at LEAST 3 hours.
After that I reconnected the tablet to the PC and it was detected as G Pad but it couldn't find the driver.
8. Install the LG Mobile Drivers.
You can get them from here:
hxxp://mega.nz/#!j8xikSYC!Njz3E1_PSJanzQEeZCbbEoWfxUz9TfrTVgusqBCJ2qY
After the driver installation reconnect the tablet to the PC.
It should now be connected properly.
9. Download LG Mobile Support Tool. You can use the launcher from here:
hxxp://mega.nz/#!bp5jgBQJ!xqiMyQU7z-ATlYz__0ybz2kM7boeLFNgqsu5XoPPSzo
Open LG Mobile Support Tool. You should now see the tablet is connected correctly and you should see the tablet model on the left side of the LG Mobile Support Tool. You will now go to Options and choose Upgrade Recovery. Wait for the image to be downloaded and flashed to the tablet.
After the process is completed the tablet will boot to life again.
Please write your comments bellow if you succeeded or failed. I will provide further assistance if required.
PS: I think you need to remove the battery and reinsert it after step 6. Or it could also work if you let the battery discharge completely.
Good luck!

I could not post the images and the links.
I will add them later (after I get to 10 posts).
Contact me on skype (cyadron) for the files and for other help.

nice finding.
it can be handy if we try to flash the v510 bootloader on the v500 to see if it fits and "unlocks" the pad

ckret said:
nice finding.
it can be handy if we try to flash the v510 bootloader on the v500 to see if it fits and "unlocks" the pad
Click to expand...
Click to collapse
Actually it was the only way I found that worked to unbrick this tablet.

Bricked LG G Pad
Need your help man with those files. I bricked my device after flashing wrong file. I have tried LG G2 Pro Board Diag tool and everything passes except SDRAM.
Thanks in advance for your assistance.

Links for files
Hi, I bricked my GPad and would be very interested in getting the proper files or links. How can I get them?

I will update this thread as soon as I can post links. Hopefully no more than a few days.

cyadron said:
I will update this thread as soon as I can post links. Hopefully no more than a few days.
Click to expand...
Click to collapse
Can you post links ?

This sounds very promising @cyadron, hopefully you'll be able to edit the links in soon.
@muiriddin this sounds like you should be able to revive your tablet from your science experiment.
@fefifofum posting here instead of the other thread as that would be way off topic for it.
This sounds like we'll be able to do some proper experimenting and still be able to recover if it doesn't work!

Hopefully I will be able to post the links soon. Does anyone know the minimum number of posts required to post links?

cyadron said:
Hopefully I will be able to post the links soon. Does anyone know the minimum number of posts required to post links?
Click to expand...
Click to collapse
Just put hxxp instead of h t t p.

roirraW "edor" ehT said:
Just put hxxp instead of h t t p.
Click to expand...
Click to collapse
Thank you. That worked.
Links have been added.

cyadron said:
Thank you. That worked.
Links have been added.
Click to expand...
Click to collapse
This thread should probably be pinned. You can request the moderators to do so by "reporting" your first post and ask them there. Too bad, as far as I know, there aren't any TOTs available for the VK810, although I haven't needed one yet.

I used the tutorial, but accuses ero Emmec test fails
Any solution?

edsmat said:
I used the tutorial, but accuses ero Emmec test fails
Any solution?
Click to expand...
Click to collapse
Unless there is a hardware problem with the emmc, it should work.
Try and remove the battery and put it back again.
Please also make sure you follow the steps as described.

Cluey said:
This sounds very promising @cyadron, hopefully you'll be able to edit the links in soon.
@muiriddin this sounds like you should be able to revive your tablet from your science experiment.
@fefifofum posting here instead of the other thread as that would be way off topic for it.
This sounds like we'll be able to do some proper experimenting and still be able to recover if it doesn't work!
Click to expand...
Click to collapse
It would be nice to get my science experiment working again... I hopefully will have some time to follow this process this weekend...

hi, i have hardbrack v410 no have screen at all only qualcomm hs_usb 9008 please help me (

lgv410 said:
hi, i have hardbrack v410 no have screen at all only qualcomm hs_usb 9008 please help me (
Click to expand...
Click to collapse
Read everything you can and follow instructions.
I think you'll need to search further than just this thread though. I read about someone recovering an LG device from this state but I think it was a phone.
But you'll need to find it and follow the instructions, I don't remember where I read it.

Cluey said:
Read everything you can and follow instructions.
I think you'll need to search further than just this thread though. I read about someone recovering an LG device from this state but I think it was a phone.
But you'll need to find it and follow the instructions, I don't remember where I read it.
Click to expand...
Click to collapse
thank you for you answer, can you show me where i can found this instructions to fix this problem? :/

lgv410 said:
thank you for you answer, can you show me where i can found this instructions to fix this problem? :/
Click to expand...
Click to collapse
No, I'm not here to do searches for you.

[Q] LG UP Restoring

I am trying to reflash the zv5 update. I want to start fresh one last time on this device.
I have downloaded LG UP (from Autoprime thread), the 8994 dll msi, and proper drivers.
LG UP says my device is Unknown even tho it lists LS992 next to the port info on the initial screen.
I cannot get beyond this screen. I cannot select an Unknown device. After reading around a bit, I learned some registry edits were needed. However it isn't 100% clear what needs to be done.
When I go into the registry, I see there is no folder for LS992 under HKEY_Current_User\Software\LG Electronics\LGUP\Model\
Is it as simple as adding one for the LS992 and directing the DLL_PATH to the 8994 folder similar to the other models?
Thanks.

I think u have to download a DLL for the LS992, do u connect the phone in download mode?
Enviado desde mi iPad utilizando Tapatalk

LGUP New Tool For Flash (Kdz and TOT)

It has taken me many days to find a tool to flash KDZ AND TOT since many people show an error at 4% of FlashTool and there is no solution so this is your Post.
LGUP is a tool used by Lg for phones that still have a guarantee such as a system error or a software error.
Compatible with Windows vista/7/8/10 No macOS No Linux
Thanks to DroidTH for giving me a link
ok let's start
Renember: All will be erased in the internal memory.
Your warrantly is now avoid
Visit [How-to] Flash firmware KDZ G2 G3 G4 by LGUP On Youtube to the link
Remember that it is not channel advertising, it's just that I can not add external links
Steps to follow
Make sure you have the drivers installed correctly
Download The KDZ / TOT
Connect Lg g3 to pc (No need to enter download mode manually)
Unzip (LGUP-G2-G3.ZIP)
First install (LGUP_8974_DLL_Ver_0_5_CODEFIRE)
Second Install (LGUP_Install_Ver_1_14_3)
Enter the LGUP program that is probably hosted on your desktop
Select the Upgrade box and select the KDZ / TOT file
Wait for the process to finish (Do not disconnect the phone)
At 80% the phone will restart (not yet to be disconnected)
When you reach 100% the phone must have turned on or starting on the TMO logo
If it does not start
-------------------------------------------------- -------------------------------------------------- ----
If it does not start
---------------------------------------------- -------------------------------------------------- -----
If it restarts constantly and does not enter the system (It restarts before reaching the optimizing application)
Turn off the phone completely and remove the battery
Wait 10 seconds. And put it back
Press Vol- and on when logo is released and press them again.
Give you everything
EYE: all files on the internal SD card will be erased
A factory reset will be made and then it must be turned on normally.
If it still does not start, remove the chip (SIMCARD)
Well that's all if you have any questions please write
Sorry if I needed something, it's just that I'm new and I do not know anything about xda
I hope you understand.

When I run LGUP it says Model is Unknown, then gives an error telling me I have to choose a known Model. Drivers are installed, USB debugging is enabled, not sure what else there is missing. Please help.
my phone: (T-Mobile lg g3 d851 30e)

dricialg said:
error Unknown model.!!
my phone: (g3 d851 30e)
Click to expand...
Click to collapse
sorry you had problems
the error is one of the drivers lg
you should plug it into one of the main USB ports on your PC.
or rather entering device manager and re-assign drivers to ports.
Have you downloaded the lgup for lg g3 and g2?

Drivers are installed, USB debugging is enabled, LG PC Suite OK.not sure what else there is missing.
Download : lgup-g2-g3.zip

Solve it FIX
good after I found the problem LGUP
roms apparently change the model of the device as it changes cm11 to build Cyanogenmod 11 xx
AOSP - to AOSP rom 2 etc.
the solution would be to install a stock rom clean no matter if v10 v30 etc. The important thing is not having changed the model number and manufacturer.
I hope I have helped and sorry

that includes cloudy fa's roms

minicm94123 said:
It has taken me many days to find a tool to flash KDZ AND TOT since many people show an error at 4% of FlashTool and there is no solution so this is your Post.
LGUP is a tool used by Lg for phones that still have a guarantee such as a system error or a software error.
Compatible with Windows vista/7/8/10 No macOS No Linux
Thanks to DroidTH for giving me a link
ok let's start
Renember: All will be erased in the internal memory.
Your warrantly is now avoid
Visit [How-to] Flash firmware KDZ G2 G3 G4 by LGUP On Youtube to the link
Remember that it is not channel advertising, it's just that I can not add external links
Steps to follow
Make sure you have the drivers installed correctly
Download The KDZ / TOT
Connect Lg g3 to pc (No need to enter download mode manually)
Unzip (LGUP-G2-G3.ZIP)
First install (LGUP_8974_DLL_Ver_0_5_CODEFIRE)
Second Install (LGUP_Install_Ver_1_14_3)
Enter the LGUP program that is probably hosted on your desktop
Select the Upgrade box and select the KDZ / TOT file
Wait for the process to finish (Do not disconnect the phone)
At 80% the phone will restart (not yet to be disconnected)
When you reach 100% the phone must have turned on or starting on the TMO logo
If it does not start
-------------------------------------------------- -------------------------------------------------- ----
If it does not start
---------------------------------------------- -------------------------------------------------- -----
If it restarts constantly and does not enter the system (It restarts before reaching the optimizing application)
Turn off the phone completely and remove the battery
Wait 10 seconds. And put it back
Press Vol- and on when logo is released and press them again.
Give you everything
EYE: all files on the internal SD card will be erased
A factory reset will be made and then it must be turned on normally.
If it still does not start, remove the chip (SIMCARD)
Well that's all if you have any questions please write
Sorry if I needed something, it's just that I'm new and I do not know anything about xda
I hope you understand.
Click to expand...
Click to collapse
Where are downloads

minicm94123 said:
good after I found the problem LGUP
roms apparently change the model of the device as it changes cm11 to build Cyanogenmod 11 xx
AOSP - to AOSP rom 2 etc.
the solution would be to install a stock rom clean no matter if v10 v30 etc. The important thing is not having changed the model number and manufacturer.
I hope I have helped and sorry
Click to expand...
Click to collapse
Hi !
How do I do all the above ?
My PC recognize the phone without problem, but LGUp won't start unless I "select a known model"... (LGUp window shows : Model = Unknown ; COM Ports = [COM5, CloudyG3] )
Problem is that my phone is softbricked after installing a new ROM, and I can only enter download mode (not even recovery). I just want to downgrade it and reflash a LG's stock ROM (or whatever ROM that would make my phone actually work !!! )
Can you help me do that ?

raf1978 said:
Hi !
How do I do all the above ?
My PC recognize the phone without problem, but LGUp won't start unless I "select a known model"... (LGUp window shows : Model = Unknown ; COM Ports = [COM5, CloudyG3] )
Problem is that my phone is softbricked after installing a new ROM, and I can only enter download mode (not even recovery). I just want to downgrade it and reflash a LG's stock ROM (or whatever ROM that would make my phone actually work !!! )
Can you help me do that ?
Click to expand...
Click to collapse
Do you still wanting help?

minicm94123 said:
Do you still wanting help?
Click to expand...
Click to collapse
YEEEESSSSSS !!!!
Please.... ?
(My phone is currently used as a toy by my 6 yo daughter ? )

LGUP "UNKNOWN" and FlashTool failure with LG G3 (and possibly others)
When I downloaded and installed LGUP with the DLL installer stated to be for the LG G3, the program did not recognise the phone, reporting it as "UNKNOWN". The LG FlashTool also failed, reporting the IMEI and PID as NULL. After spending a lot of time on this, I twigged that the DLL file in the LGUP model directory was for the 8994 processor; but the G3 has an 8974, quite different and incompatible. I located the DLL installer MSI file for 9874 devices, uninstalled LGUP and the DLLs from Windows add/remove programs, ran the 9874 DLL installer and reinstalled the LGUP program, and everything worked.
The file is, amongst other places, on https://uptoandroid.com/download-lg-up-tool-for-lg-smartphone-latest/. Do not download DLL files for LG G4, LG V10, LG G3, LG Stylo, filename LGUP_Common_DLL_Ver_1_0_28_5 .msi, but instead For LG phones based on Qualcomm Snapdragon 800 MSM8974 SoC, filename LGUP_8974_DLL_Ver_0_5.msi:.
HTH
23 Aug 19: I find that I've rediscovered the wheel. Exactly what I said was posted in 2016 - if I'd found it, it would have saved me a lot of time!

Can not flash LG G3 D855

Hello friends. I got the LG G3 D855 and it was dead. When flashing with LG Flash Tool, the same is 4% and gives connection error and asks me to remove the battery. Or else it reaches 15% and it's the same, I've tried everything. The S / W version is D85521A, Spain. Any solution?

hi, I have it working but not sure what made it work.
- get LG flash tool 2014
- flash file I used for Android Marshmellow D85530C_00_0211.kdz (more here http://storagecow.eu/index.php?dir=Xda%2FLG+G3%2FStock%2FD855%2F
- when you have connected your phone change the com port in device manager to 41 (I had done that yesterday)
- install the LG USB driver
well I had really troubles getting it work but somehow today it did it
oh one more thing, leave internet on as you need to select country and language in flashtool, ones a new windows opens, let the first step finish, then pull your lan cable off or disable wifi whatever..
ps: bmatney posted 3 posts down this link, may help too https://forum.xda-developers.com/showthread.php?t=2785089