Database Develop

Tutorial: LG P970 (P970H) unbrick/flash using SmartFlash Tool

I NO LONGER SUPPORT THIS THREAD ANYMORE. IF YOU WANT TO HIJACK THIS THREAD CONTACT ME.
SmartFlash Tool completly erases device memory during flashing.
Phone will make Factory Reset at first boot after flashing!
You can upgrade and downgrade. You can downgrade from V20N too!
This also will remove phone lock if you forget unlock code or pattern. (phone lock, NOT simlock or network lock...)
This method doesn't need internet connection.
If you want to flash an LG P970H download correct ROM from link below.​
With this solution you can unbrick LG Optimus Black P970.
It fixes bootloop, "ERROR LG Security Team", and BSOD - blue screen with green writings (untested).
Only requirement is ability to enter in to S/W Update mode and not broken hardware.
Tested on: Windows 7 Ultimate x86, x64 and Windows XP Pro SP3.
---------------------------------------------------------------------------------------------------------------
Downloads:
- SmartFlash Tool (mirror) [password: [email protected]]
- stock ROM V10A EEU XXX with .bin & .fls. [CRC MD5: d880b8834400575b5827bafbf29a745e] - DepositFiles, FileServe, WUpload.
Other bin/fls ROMs are HERE. (All these links are working again!)
You need to install LG Mobile drivers. They are located HERE. [CRC MD5: e4614071e72c0292d3a8238908b5c7ba]
1. Unpack SFT.rar that contains SmartFlash Tool program.
2. Unpack, preffered C: drive, firmware pack BIN_LGP970AT-00-V10a-EEU-XXX-MAY-09-2011_0.zip
Inside there will be 2 files: LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_AP.bin i LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_CP.fls.
3. Run B_SmartFlashTool_Extern.exe
4. Choose:
1) ROM copy D/L bookmark
2) in Select mode choose Normal mode
3) choose CP file: LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_CP.fls
4) choose AP file: LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_AP.bin
*) connect phone in S/W Update mode with battery in it (on the phone that is switched off, plug in USB cable WHILE HOLDING Vol+ button)
5) choose COM port.
6) choose LGE Mobile USB Serial Port in Communication Driver
7) click Start and wait till end.
It takes about 3 mins to flash.
After successfully flashing, phone will reboot and make Factory Reset.
And that's all!
Settings:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Flashing:
Finished:
Now your phone should be unbricked and working.
I will not take any responsibility if something goes wrong when you trying this solution. For me and many others it worked well.​

To add, it is a fast flasher compared to RDTT.

gabwerkz said:
To add, it is a fast flasher compared to RDTT.
Click to expand...
Click to collapse
Exactly! It takes only 3 minutes to flash.

radkor said:
Exactly! It takes only 3 minutes to flash.
Click to expand...
Click to collapse
Don't you love that? Quick and easy... Thanks for the list link bro.

gabwerkz said:
Don't you love that? Quick and easy... Thanks for the list link bro.
Click to expand...
Click to collapse
AFAIK it's the safest & quickiest solution for flashing Black.
Now we only need newest firwares in bin/fls format, eg. V20N. Didn't find that yet.

radkor said:
AFAIK it's the safest & quickiest solution for flashing Black.
Now we only need newest firwares in bin/fls format, eg. V20N. Didn't find that yet.
Click to expand...
Click to collapse
Yeah, I used this one when I had BSOD way back. And I hope there'd be more. What I'd like to know is are they extracted or came from source? The method how to extract is interesting if they are.

I think that these firmwares "leaked" from LG or were downloaded from their servers.
I will ask the guy who posted these files.
I've downloaded all these firmwares on my HDD as a backup if hosting delete this.
It has approx 20GB.

Hello all expert,
Newbie here and want to be safe in uncharted territory on flashing my phone, never done it before.
Does the "COM Port" matter, how do we know which port# to use.
Thanks,

COM port is automatically assigned when usb is connected. I know in smart flasher, if you select lge mobile usb only one port will be available.

Redpik said:
COM port is automatically assigned when usb is connected. I know in smart flasher, if you select lge mobile usb only one port will be available.
Click to expand...
Click to collapse
Redpik,
Thanks for your quick reply, really appreciated.
Can we use this tool to install the cook rom REDY2006 put together V20N ROOTED.
I have V20N installed, unfortunately cannot get it to root. Thinking of installing REDY's rom.

fongnd said:
Can we use this tool to install the cook rom REDY2006 put together V20N ROOTED.
Click to expand...
Click to collapse
No.
It's only for stock LG ROMs in BIN/FLS format.

You guys has been awesome and informative.
My ultimate gold is to have V20N rooted. Need to get rid of all the bloatware.
I have the German V20N installed and could feel the efficiency in terms with responsiveness and battery compare to my previous V10D
Now.... to get to REDY's cook rom V20N that are rooted.
Do I use this tool to downgrade to my previous stock Rom V10D and have it rooted and install Rom Manager, then use the Recovery menu to install Redy's Rom
do I need to do any wipe before installing Redy's Rom
thank you guys!!
PS: All of these may be boring to the experts, but are very critical to beginners like me.

fongnd said:
Do I use this tool to downgrade to my previous stock Rom V10D and have it rooted and install Rom Manager, then use the Recovery menu to install Redy's Rom
Click to expand...
Click to collapse
Exactly. You can even use V10A provided in this tutorial or download yours V10D from list that I linked at the top.
fongnd said:
do I need to do any wipe before installing Redy's Rom
Click to expand...
Click to collapse
When you'll be rooted on V10x, run CWM, make full wipe (data, cache, (advanced) dalvik cache), and then install Redy's zipped ROM.

smart flash
Flashing to a stock room, will unlock the phone to any operator?

l0gandroid said:
Flashing to a stock room, will unlock the phone to any operator?
Click to expand...
Click to collapse
Nope.
Flashing, Rooting and Unlock-Phone are totally different things.
If your phone is locked to a operator, you need to enter the secret menu by pressing 3845#*970# then enter a unlock code from one of the sub-menu. The code above is assuming that your phone is a Optimus Black P970.

l0gandroid said:
Flashing to a stock room, will unlock the phone to any operator?
Click to expand...
Click to collapse
No. This method only unlock code or pattern used to lock phone, not SIM.
In short: this will not remove SIMLock.
fongnd said:
you need to enter the secret menu by pressing 3845#*970# then enter a unlock code from one of the sub-menu.
Click to expand...
Click to collapse
Nope, it's 2945#*970#

Thank you for this, is PERFECT!!!!!!!

HI radkor,
thanks for this tutorial. It is indeed way faster than KDZU or RD. However it doesn't work on my phone. Tried several times (KDZU and RD do not work either).
Phone gets in s/w mode. Tool starts to flash. Shows no errors and phone restarts. Yet it stucks with LG Logo and buttons flashing. Stays like this for hours. I tried several times and also used KDZU and RD with several KDZ-Versions and changing options.
It is strange to me that all the programs tell me that the phone is flashed and the phone restarts, but still gets stuck with LG Logo.
Have you seen this? Or should the Tool definitely work?
THX
Ekkkke

@Ekkkke:
This flashing tool works if phone is 100% hardware OK.
Maybe your phone hardware is faulty...
Did phone made a Factory Reset after flashing while rebooting?
Why it is bricked? You tried to flash wrong firmware or what?

thanks for answering! I rooted the phone once but I did not flash anything. Made one official upgrade a few weeks ago. Then I turned off the phone a few days ago. Now it doesn't start. Always gets stuck with LG Logo and buttons flashing.
When using the tool to flash it the S/W screen disappears, phone seems to reboot but gets stuck again with LG Logo. The tool tells me that everything is complete. How can I see if it makes a factory reset?
Probably you are right and the hardware is broken. I may use the LG Tool to flash official V20N with recovers (that program as well tells me everything went right). Then I probably send it to LG.
This Forum was my last hope. Thanks for helping! And the tool is great and fast anyway!

Cannot enter into recovery; Suppressed ROM problem - no help given by its cook

Dear Xda'ers,
I am really desperate on the situation and need your help.
I tried every solution to get into recovery mod including SFT and others available, no luck in getting there.
The rom is working, so no bricked phone situation, problem is gapps terminates itself making email and other functions unreachable.
So I want to switch to either the official rom or another one which is in the forum.
Phone is roooted by the way.
Any suggestions?
PS. As put in the title, this roms cook told me that he cannot help me.

---------- Post added at 11:33 PM ---------- Previous post was at 11:26 PM ----------
hasgerdas said:
Dear Xda'ers,
I am really desperate on the situation and need your help.
I tried every solution to get into recovery mod including SFT and others available, no luck in getting there.
The rom is working, so no bricked phone situation, problem is gapps terminates itself making email and other functions unreachable.
So I want to switch to either the official rom or another one which is in the forum.
Phone is roooted by the way.
Any suggestions?
PS. As put in the title, this roms cook told me that he cannot help me.
Click to expand...
Click to collapse
Hello.
If you just want to get into recovery mode, open terminal emulator.
Type
'su'
Allow it and type
'Reboot recovery'
Without '.
Works under cwm.
If this doesn't work.
Use smart flash tool.
(Quoted) ⬇
After flashing your phone should Boot into recovery.
Dont forget to do always a factory reset. If not -> bootloop
radkor said:
SmartFlash Tool completly erases device memory during flashing.
Phone will make Factory Reset at first boot after flashing!
You can upgrade and downgrade. You can downgrade from V20N too!
This also will remove phone lock if you forget unlock code or pattern. (phone lock, NOT simlock or network lock...)
This method doesn't need internet connection.
If you want to flash an LG P970H download correct ROM from link below.​
With this solution you can unbrick LG Optimus Black P970.
It fixes bootloop, "ERROR LG Security Team", and BSOD - blue screen with green writings (untested).
Only requirement is ability to enter in to S/W Update mode and not broken hardware.
Tested on: Windows 7 Ultimate x86, x64 and Windows XP Pro SP3.
---------------------------------------------------------------------------------------------------------------
Downloads:
- SmartFlash Tool (mirror) [password: [email protected]]
- stock ROM V10A EEU XXX with .bin & .fls. [CRC MD5: d880b8834400575b5827bafbf29a745e] - DepositFiles, FileServe, WUpload.
Other bin/fls ROMs are HERE. (All these links are working again!)
You need to install LG Mobile drivers. They are located HERE. [CRC MD5: e4614071e72c0292d3a8238908b5c7ba]
1. Unpack SFT.rar that contains SmartFlash Tool program.
2. Unpack, preffered C: drive, firmware pack BIN_LGP970AT-00-V10a-EEU-XXX-MAY-09-2011_0.zip
Inside there will be 2 files: LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_AP.bin i LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_CP.fls.
3. Run B_SmartFlashTool_Extern.exe
4. Choose:
1) ROM copy D/L bookmark
2) in Select mode choose Normal mode
3) choose CP file: LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_CP.fls
4) choose AP file: LGP970AT-00-V10a-EEU-XXX-MAY-09-2011+0_AP.bin
*) connect phone in S/W Update mode with battery in it (on the phone that is switched off, plug in USB cable WHILE HOLDING Vol+ button)
5) choose COM port.
6) choose LGE Mobile USB Serial Port in Communication Driver
7) click Start and wait till end.
It takes about 3 mins to flash.
After successfully flashing, phone will reboot and make Factory Reset.
And that's all!
Settings:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Flashing:
Finished:
Now your phone should be unbricked and working.
I will not take any responsibility if something goes wrong when you trying this solution. For me and many others it worked well.​
Click to expand...
Click to collapse

Used ALL mentioned so far, brought it three different service centres, they couldn't manage to get into recovery as well
Any creative ideas?

hasgerdas said:
Used ALL mentioned so far, brought it three different service centres, they couldn't manage to get into recovery as well
Any creative ideas?
Click to expand...
Click to collapse
try this
washbeer said:
power up your phone, then press and hold vol down + home key and then also press and hold the power button until the phone restarts. then it should boot into recovery.
btw i made a small video tutorial
youtube.com/watch?v=Iu4O_zvrn6U
Click to expand...
Click to collapse
worked for me

ok it seems there is also an other way to enter recovery:
on switched off phone (and only then!) press and hold G-key + volume up and then press power key.
it should boot straight into recovery.

Cant you push recovery through adb/fastboot?
Sent from my HP 7 using XDA Premium HD app

Do you still have cwm and the custom ROM on your phone? If yes, simply download quickboot or rommanager from playstore and hit reboot recovery.
Sent from my LG-P760 using xda app-developers app

Hi guys,
Tried the two methods from DuffBoon and wash beer - no luck.
I think there is something wrong with gapps as it gives an error when I try to download smth from Google Play- so no option to load any new app.
I go into terminal emulator, input 'su' and have superuser rights, than punch 'reboot recovery', it reboots but no recovery at all.
My diagnosis is CWM and gapps is broken somewhat; SFT or another method is not working for that reason.

hasgerdas said:
Hi guys,
Tried the two methods from DuffBoon and wash beer - no luck.
I think there is something wrong with gapps as it gives an error when I try to download smth from Google Play- so no option to load any new app.
I go into terminal emulator, input 'su' and have superuser rights, than punch 'reboot recovery', it reboots but no recovery at all.
My diagnosis is CWM and gapps is broken somewhat; SFT or another method is not working for that reason.
Click to expand...
Click to collapse
But your system is still working? There is an adb flashable cwm recovery from redy06 somewhere here. Google:
Xda cwm touch redy06
And youll probably find it. You can flash it with the device on. There also is a reboot recovery script in the pack, so you can check if it works or not.
Sent from my LG-P760 using xda app-developers app

Thanks, seems interesting - I will try it and see whether it works or not (currently on Mac)

[Q] Please help savage my Z1

So the other day I confirmed for an OTA update for my Z1. Little did I know, 3 seconds and an auto shut down later, I would end up with my Z1 being stuck in a bootloop with no access to recovery mode.
I really need help on getting my Z1's internal memory (photos, notes, contacts) extracted. I tried a few of the local repair shops and they said that the data inside is corrupted.
I've try ADB but it says "permission denied" whenever I try getting in the storage>sdcard. Probably due to me putting a swipe pattern lock screen on it.
So if there's any hope at all, I'm willing to even disassemble it if that could even help.
I've not rooted it but I do believe the bootloader is unlocked.
- I should also mention I'm a real amateur at this stuff so please be very patient and specific with the instructions. Thanks!

Try using this guide: http://www.ibtimes.co.uk/how-instal...z3-z2-devices-via-xperifirm-flashtool-1492498
it's for updating your os with flash tool just use an ftf file for z1. And in the final stage of the update untick the 3 wipe options and this should save your data.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
i'm not totally sure this will work, depends on how much your memory is ruined. If it was just an installation of your os error this should reinstall an updated os without erasing data. first try other methods for saving your data and if you won't find any, try this one

btw, in the picture i posted i didnt untick those 3 wipe options, don't forget to untick them else you'll wipe your memory!!!

silentmax24 said:
Try using this guide: http://www.ibtimes.co.uk/how-instal...z3-z2-devices-via-xperifirm-flashtool-1492498
it's for updating your os with flash tool just use an ftf file for z1. And in the final stage of the update untick the 3 wipe options and this should save your data.
i'm not totally sure this will work, depends on how much your memory is ruined. If it was just an installation of your os error this should reinstall an updated os without erasing data. first try other methods for saving your data and if you won't find any, try this one
Click to expand...
Click to collapse
I tried with all 3 available firmware (SG) but still not able to boot up the phone normally, nor was I able to access the memory through adb. Any other thoughts on that?

qazamy said:
I tried with all 3 available firmware (SG) but still not able to boot up the phone normally, nor was I able to access the memory through adb. Any other thoughts on that?
Click to expand...
Click to collapse
give it a try..since ur bootloader was already unlock flash kernel and boot into twrp, then connect ur phone, now in ur computer u can now see the storage of ur mobile, look for the pics u've been talking about, in DCIM folder, for the notes i dont know the path..hehe

mizukage said:
give it a try..since ur bootloader was already unlock flash kernel and boot into twrp, then connect ur phone, now in ur computer u can now see the storage of ur mobile, look for the pics u've been talking about, in DCIM folder, for the notes i dont know the path..hehe
Click to expand...
Click to collapse
Do you have like a more specific step-by-step guide of what you're talking about?

qazamy said:
Do you have like a more specific step-by-step guide of what you're talking about?
Click to expand...
Click to collapse
1. dl kernel for lolli if ur on lolli and vice versa
2. unpack/ectract it and lookg for boot.img
3. run flashtool and select fastboot mode look for the boot.img [dont flash it yet]
4. device is turned off, connect it into fastboot mode and flash.
5. click reboot into system and keep pressing vol down until u go into recovery
connect ur device and u will see ur mobile into ur computer that it was detected, now browse for the pics that u wanted to back up

qazamy said:
So the other day I confirmed for an OTA update for my Z1. Little did I know, 3 seconds and an auto shut down later, I would end up with my Z1 being stuck in a bootloop with no access to recovery mode.
I really need help on getting my Z1's internal memory (photos, notes, contacts) extracted. I tried a few of the local repair shops and they said that the data inside is corrupted.
I've try ADB but it says "permission denied" whenever I try getting in the storage>sdcard. Probably due to me putting a swipe pattern lock screen on it.
So if there's any hope at all, I'm willing to even disassemble it if that could even help.
I've not rooted it but I do believe the bootloader is unlocked.
- I should also mention I'm a real amateur at this stuff so please be very patient and specific with the instructions. Thanks!
Click to expand...
Click to collapse
1. try flash ftf again, unstick applog and data, stick on cache ( wipe cache). try several times maybe it will bootup.
2. you sure your bootloader is unlocked ?
use flashtool to check your bootloader status, if it really unlocked just flash a custom kernel have build in recovery to save your data.
if it is locked bootloader, you can unlock via flashtool, it wont wipe you data like fastboot unlock, and flash kernel but you will lose your sony function forever if you dont have any TA backup before. you should consider to choose your data or sony function.

Are you sure your bootloader is unlocked?
Dude, Are you sure that your bootloader is unlocked?
1st confirm that and accordingly there are ways by which you can recover your data.
Guys here have already recommended methods by which you can get your data back. I suggest read through general an Q&A forums. Read thread for soft bricking. Do not panic and carefully follow the instructions. You should get your data back.
similar case has happened with me few times and I was sucessfully able to get my data back.. so dont worry..

LG G4 H811 Complete Unbrick Guide - 100% Working

Hello Everyone,
This is Hamza. I have H811 with v20o. I mistakenly flashed the Modem+Boot+Bootloader+Rom of V20i on my device and hard bricked it. My device was totally dead. No Charging/Notification light, No Download Mode, No Boot & No Recovery.
I spent more than 2 days in finding the solution and finally i found it.
Thread by By leptdre, was very helpful for me. But to make it simple the steps to complete unbricking are as follows:
Tools Required:
1. Card Reader+Data Cable
2. A SD Card - 32 GB or 64 GB. I used 64 GB
3. SD Card Formatter - Download Here - Link Updated
4. Win32DiskImager - Download Here - Link Updated
5. Original KDZ - Download Here
6. SystemImage Bin File - Download Here - Link Updated
7. LGUP Tool - Download Here
Steps to Unbrick:
1. Insert your memory card in Card Reader and Format it using Windows Format. While formatting "uncheck Quick Format" and Change Type to "exFat". You can alternatively use SD Card Formatter but make sure that the card is in exFat format.
2. Once format is completed, install Win32DiskImager and open it. Add SystemImage.bin file. If it does not show the bin file just rename SystemImage.bin to SystemImage.img and then select it. Select your memory card and Click Write.
(You can alternatively change the file types on the win32diskimage from .img to all types)
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
3. One the Write Completes. Eject Card and insert in your LG G4 H811. Press Volume Up Button while connecting the USB Cable.
4. There you go, it will open the download mode. Now Open LGUP Tool as admin. It will show the device as connected. Select the Original KDZ Firmware and Click Start. it will complete and your Mobile will reboot.
5. Now its Done. Enjoy!
Note: I tried it on my H811 and cannot confirm whether it will work on your device or other variant. I am just sharing to help others.

It says you need the decryption key for the bin file download? Also you dont have to change the file ext, just change the file types on the win32diskimage from .img to all types.

I'd love for this to work, but no luck. I'm helping out a friend that was running xTreme. I think TMO forced the update before we could block it again. Now I can't boot to alter the Build.prop to use LGUP.

RodneyMcKay said:
I'd love for this to work, but no luck. I'm helping out a friend that was running xTreme. I think TMO forced the update before we could block it again. Now I can't boot to alter the Build.prop to use LGUP.
Click to expand...
Click to collapse
But can your phone still boot up to download mode?

greedness said:
But can your phone still boot up to download mode?
Click to expand...
Click to collapse
Yes, I can boot to download mode, but LGUP says unknown model. I'd rather not wipe the device if I don't have to.

RodneyMcKay said:
Yes, I can boot to download mode, but LGUP says unknown model. I'd rather not wipe the device if I don't have to.
Click to expand...
Click to collapse
Then this guide is not for you. This guide is for those that was hard bricked and wont turn on at all (aka qualcomm 9001). Basically, the main internal memory is corrupted so it wont turn on the phone. What this guide does is that it makes your phone run from the external mmc, so you could go into download mode just long enough to put in a working kdz. In your case, it's just as good as doing a factory reset.

greedness said:
Then this guide is not for you. This guide is for those that was hard bricked and wont turn on at all (aka qualcomm 9001). Basically, the main internal memory is corrupted so it wont turn on the phone. What this guide does is that it makes your phone run from the external mmc, so you could go into download mode just long enough to put in a working kdz. In your case, it's just as good as doing a factory reset.
Click to expand...
Click to collapse
OK, I misinterpreted the steps. I was assuming that it would boot from ext by default with this process and bypass the internal. I guess it's only a fall back after internal boot failure.

Please download the password

Plz share Decryption key for mega.com image file

Hi, thanks for the help, my model is the h818p, other files needed or with those who are in the first post will work, thank you for your help in advanc

Very Sorry for the inconvenience in Links. I am new on Mega and does not know it well. I have updated the links in original post. If any problem, let me know!

I need help please.
I have a H811 T-mobile LG G4. I unlocked the bootloader, flashed TWRP, flashed MM-20e Global rom which is ported rom from H815 20e. Everything worked well untill I deciced to relock the bootloader! I have issued a command fastboot oem lock and the device began to bootloop. "Secure Booting Error, Error Code 1003, MODIFIED".
I Have tried LG Bridge but it says "Can't check internal storage".
I Have tried LGUP with several kdz files including H81120o but it says "Invalid kdz file"
I have tried LG Flash tool and nothing works.
Your help would be highly appreciated.

What does it shows when you connect your mobile with LPUP tool?
Does it shows h81120o?
If yes then you can install h81120o kdz

LGUP is showing: H81520e
and that's why I'm kind of confused. My device is actually H811 but I have rooted and flashed twrp after and flashed MM H81520e Global ported rom (to get rid of tmobile apps). Everything was working perfectly until I fastboot oem relock -ed it.
I tried H81520e kdz also but same error occurs. "Invalid kdz file".
Is there any way I can get into recovery? or is it possible to flash stock recovery from "download mode" ?

mikatechs said:
LGUP is showing: H81520e
and that's why I'm kind of confused. My device is actually H811 but I have rooted and flashed twrp after and flashed MM H81520e Global ported rom (to get rid of tmobile apps). Everything was working perfectly until I fastboot oem relock -ed it.
I tried H81520e kdz also but same error occurs. "Invalid kdz file".
Is there any way I can get into recovery? or is it possible to flash stock recovery from "download mode" ?
Click to expand...
Click to collapse
You can actually work that out through Download Mode.
Enter Download Mode, Install TWRP through ADB. Once its installed, you will be able to install the flashable stock rom for H811 . I think that would work!
Also have you tried LG Flash Tool?
Note: Make sure to download the right version for H811 (v20i or v20o) and installing the wrong one will hardbrick your device.

I have done everything according to OP. My phone now boots a custom ROM I flashed through TWRP and all is working well as long as I keep SD card in phone. I am stuck from there because I can't flash stock 20i kdz. I get to 9% and it gives error and reboots the phone. Can someone helpbme out? Thanks

divine1250 said:
I have done everything according to OP. My phone now boots a custom ROM I flashed through TWRP and all is working well as long as I keep SD card in phone. I am stuck from there because I can't flash stock 20i kdz. I get to 9% and it gives error and reboots the phone. Can someone helpbme out? Thanks
Click to expand...
Click to collapse
Are you downgrading from v20o to v20i?

I've had no luck with this method. Could it be because I am not using a card reader but instead thru another phone's sd slot?

eshtak12 said:
I've had no luck with this method. Could it be because I am not using a card reader but instead thru another phone's sd slot?
Click to expand...
Click to collapse
I think that is the problem. Did you formatted as per mentioned instructions?

jam1445 said:
I think that is the problem. Did you formatted as per mentioned instructions?
Click to expand...
Click to collapse
Yes, there is an option in My Computer that allows me to get in the sd card( F: ) and not the phone storage itself which is ( H: ). I formatted it as instructed using ( F: ). I'm thinking about purchasing a micro sd to sd adaptor and attempt it again.
In Device Manager I get "Relink hs-usb qdloader 9008" Instead of Qualcomm. Maybe that's another issue?

[SOLVED] Can't using LGUP now. bootloop with 9008 mode. (V409N)

Hello!
I unlocked the bootloader first.
However, after rebooting, the twrp failed to flash.
and I got a message to re-lock the bootloader.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
After that, I checked several guides and tried.
but now, never can't boot and can't use LGUP.
Any method to restore stock rom via 9008 mode? please help.
PS :
I think download mode is also broken.
Please let me know if there's any way to recover the download mode.

1688_ said:
Hello!
I unlocked the bootloader first.
However, after rebooting, the twrp failed to flash.
and I got a message to re-lock the bootloader.
View attachment 5211369
After that, I checked several guides and tried.
but now, never can't boot and can't use LGUP.
View attachment 5211375
View attachment 5211379
Any method to restore stock rom via 9008 mode? please help.
PS :
I think download mode is also broken.
Please let me know if there's any way to recover the download mode.
Click to expand...
Click to collapse
I'd suggest looking at this thread. Also, the screen telling you the bootloader is unlocked is normal, when you have a device that has it unlocked, you *always* see it when you boot up.
cheers

AsItLies said:
I'd suggest looking at this thread. Also, the screen telling you the bootloader is unlocked is normal, when you have a device that has it unlocked, you *always* see it when you boot up.
cheers
Click to expand...
Click to collapse
Very thank you!
but Unfortunately, it didn't work for me.
I forgot what i did, but maybe I modified xbl_a, xbl_b, etc.
and try below method it didn't work, too.
I've touched too many things....
I'd like to know if there's a way to force the use of LG Flash Tool or something like that.

1688_ said:
Very thank you!
but Unfortunately, it didn't work for me.
I forgot what i did, but maybe I modified xbl_a, xbl_b, etc.
and try below method it didn't work, too.
I've touched too many things....
I'd like to know if there's a way to force the use of LG Flash Tool or something like that.
Click to expand...
Click to collapse
Follow this post. (Don't speak Spanish so have no idea what the above video is doing, can't help there).
Essentially, when you flash an image to a partition it doesn't belong in, you run the risk of overwriting into nearby partitions (because image is bigger than partition size). If you do that, then the only solution is what's in the post above. It basically restores the entire device using qfil. Because when you start overwriting partitions (and possibly the partition table), there's no way of knowing what is messed up and what isn't.
cheers

AsItLies said:
Follow this post. (Don't speak Spanish so have no idea what the above video is doing, can't help there).
Essentially, when you flash an image to a partition it doesn't belong in, you run the risk of overwriting into nearby partitions (because image is bigger than partition size). If you do that, then the only solution is what's in the post above. It basically restores the entire device using qfil. Because when you start overwriting partitions (and possibly the partition table), there's no way of knowing what is messed up and what isn't.
cheers
Click to expand...
Click to collapse
thank you !!
I'll try this right now and report

you
AsItLies said:
Follow this post. (Don't speak Spanish so have no idea what the above video is doing, can't help there).
Essentially, when you flash an image to a partition it doesn't belong in, you run the risk of overwriting into nearby partitions (because image is bigger than partition size). If you do that, then the only solution is what's in the post above. It basically restores the entire device using qfil. Because when you start overwriting partitions (and possibly the partition table), there's no way of knowing what is messed up and what isn't.
cheers
Click to expand...
Click to collapse
You are my hero!! So many thank you!!
I've only tried 3 and 4.
download mode has come alive.
btw, why my v40 has fail to install twrp?
my system is LMV409N(SKT)
Maybe I should give up custom rom for a while.
many thanks!!!

1688_ said:
you
You are my hero!! So many thank you!!
I've only tried 3 and 4.
download mode has come alive.
btw, why my v40 has fail to install twrp?
my system is LMV409N(SKT)
Maybe I should give up custom rom for a while.
many thanks!!!
Click to expand...
Click to collapse
good that it worked. Follow this link and in the folder find boot_20n_magisk.img and use it (assuming you're on kor 20n), use qfil to flash it to boot_a and b.
It has both magisk and twrp in it. Remember, after flashing it in qfil (save original first of course), you need to hold vol - and pwr for a few seconds (until u hear windows chime meaning disconnect), to exit qfil.
But! and this is important, we don't want the device to boot, we want to go directly to recovery. So keep both buttons pressed but when LG logo appears, release pwr and then re-apply it, which then goes to recovery.
in recovery, u have to format data, then reboot recovery and flash dm_verity.
cheers

AsItLies said:
good that it worked. Follow this link and in the folder find boot_20n_magisk.img and use it (assuming you're on kor 20n), use qfil to flash it to boot_a and b.
It has both magisk and twrp in it. Remember, after flashing it in qfil (save original first of course), you need to hold vol - and pwr for a few seconds (until u hear windows chime meaning disconnect), to exit qfil.
But! and this is important, we don't want the device to boot, we want to go directly to recovery. So keep both buttons pressed but when LG logo appears, release pwr and then re-apply it, which then goes to recovery.
in recovery, u have to format data, then reboot recovery and flash dm_verity.
cheers
Click to expand...
Click to collapse
Thank you very much for your follow-up.
I succeeded in entering the twrp.
But I got screen asking password, there's default password or something?

1688_ said:
Thank you very much for your follow-up.
I succeeded in entering the twrp.
But I got screen asking password, there's default password or something?
View attachment 5213013
Click to expand...
Click to collapse
There's no password, you just cancel out of that but be sure to do the 'swipe' to make it modifiable. The key after that is to format data, then reboot recovery and flash dm_verity, then encryption won't exist and no longer asked for pw.
cheers

AsItLies said:
There's no password, you just cancel out of that but be sure to do the 'swipe' to make it modifiable. The key after that is to format data, then reboot recovery and flash dm_verity, then encryption won't exist and no longer asked for pw.
cheers
Click to expand...
Click to collapse
OK, Thank you!!
I followed the guide below and no more password message!!
How to use decrypted stock by @Xsavi : https://forum.xda-developers.com/lg-v40/how-to/guide-twrp-data-access-stock-t3970149
I think everything's finally settled.
I'll try my best to enjoy the v40 now.
Thank you so much for your help.
many many thank you!!!!!!!