[Q] How to restore/flash old bootloader? - LG Optimus 2x

I'm from Poland and in our country, in order to send the phone to service for repair, you must have STOCK ROM without Recovery (CWM/TWRP).
Now I have ROM with unlocked new (ICS) bootloader and I must flash STOCK Froyo V10, but I don't now how to restore old bootloader.
I only found: "Flash Stock GB Rom. And you will get the old Bootloader back", but flash with what? NVflash? LG Update Tool? Smartflash?
I found "2x-v10b-1300166062" for nvflash and "V10A_00.kdz" for LG Update Tool.
What should I do? I don't wanna transform my LG 2X into brick.
(I have AIO Toolkit and APX Drivers on Windows 7 SP1 32-bit)
[Sorry for my English. Google Translate helped me :cyclops: ]

krzych53 said:
I'm from Poland and in our country, in order to send the phone to service for repair, you must have STOCK ROM without Recovery (CWM/TWRP).
Now I have ROM with unlocked new (ICS) bootloader and I must flash STOCK Froyo V10, but I don't now how to restore old bootloader.
I only found: "Flash Stock GB Rom. And you will get the old Bootloader back", but flash with what? NVflash? LG Update Tool? Smartflash?
I found "2x-v10b-1300166062" for nvflash and "V10A_00.kdz" for LG Update Tool.
What should I do? I don't wanna transform my LG 2X into brick.
(I have AIO Toolkit and APX Drivers on Windows 7 SP1 32-bit)
[Sorry for my English. Google Translate helped me :cyclops: ]
Click to expand...
Click to collapse
use lg update tool with that you can just flash the kdz file and if you brick it you can always unbrick it using nvflash:fingers-crossed:
or with google translate :
lg aktualizacji użyć narzędzia z tym można po prostu migać KDZ plik i jeśli go można cegła zawsze unbrick go za pomocą nvflash

Thanks for answer
wulsic said:
use lg update tool with that you can just flash the kdz file and if you brick it you can always unbrick it using nvflash:fingers-crossed:
Click to expand...
Click to collapse
Thanks for help. I used AIO with repartition to old layer option. Then i just flash V10b with NVFlash
wulsic said:
or with google translate :
lg aktualizacji użyć narzędzia z tym można po prostu migać KDZ plik i jeśli go można cegła zawsze unbrick go za pomocą nvflash
Click to expand...
Click to collapse
This sounds strange (and funny)

Related

How to upgrade to 2.3.4 using official tools again?

I am now using the rooted v20B from the forum, but somehow, I would like to flash back my home country's v20B version. is that possible to me to use the offcial tools to update the 2.3.4 once more? I have got the 2.3.4 update by using the tools before.
Yeah just flash via B2c (LG tool). But you need to do an emergency recovery, or whatever it is called in your language.
N00BY0815 said:
Yeah just flash via B2c (LG tool). But you need to do an emergency recovery, or whatever it is called in your language.
Click to expand...
Click to collapse
Yes, it's also my language! emergency recovery.
Thanks!

[Q] impossible to flash som normal rom

Hello,sorry for my bad english,i am from Belgium.
Here is my problem and thank you for you help.
I flashed with sft rom v28c ,it worked great but i wanted to install cwn.
I tried with v20q rom which is locked bootloader and it worked but impossible to root.
I tried with lot of v10 and other v20 unlocked and every time phone did not start: it blinked.
What can i do?Thank for you help.
I mean i can flash every locked bootloader firmware but none unlocked or i have a message "magic number does not coincide"
azerty.0496 said:
Hello,sorry for my bad english,i am from Belgium.
Here is my problem and thank you for you help.
I flashed with sft rom v28c ,it worked great but i wanted to install cwn.
I tried with v20q rom which is locked bootloader and it worked but impossible to root.
I tried with lot of v10 and other v20 unlocked and every time phone did not start: it blinked.
What can i do?Thank for you help.
I mean i can flash every locked bootloader firmware but none unlocked or i have a message "magic number does not coincide"
Click to expand...
Click to collapse
If you have p970 the V20Q firmware is unlocked and rootable just read NOOBY's HOW TO
Only V28 and V30 has got locked bootloader and both off them can be rooted
V20* and V10* supports CWM and is easily rootable.
Thank you but
xonar_ said:
If you have p970 the V20Q firmware is unlocked and rootable just read NOOBY's HOW TO
Only V28 and V30 has got locked bootloader and both off them can be rooted
V20* and V10* supports CWM and is easily rootable.
Click to expand...
Click to collapse
Thank you but i can flash only v20q firmware (i do not understand why the other do not work with sft).I search desesperatly a way to root v20q without sft:gingerbreak and unlockroot not working or producing error message.
Have you a link to a working unlocked firmware or an other solution.Thank you for your help.
azerty.0496 said:
Thank you but i can flash only v20q firmware (i do not understand why the other do not work with sft).I search desesperatly a way to root v20q without sft:gingerbreak and unlockroot not working or producing error message.
Have you a link to a working unlocked firmware or an other solution.Thank you for your help.
Click to expand...
Click to collapse
v20q mean Gingerbread
Just download v20S patched .bin files and flash and no problems.
Lot of times, it save me.
From there, you can restore nandroid backup or you can flash any other Zeus or CM
don t work
[Thank you and merry christmas...
but nothing worked.The only issue should be to flash v10 bin and fls file NOT KDZ because lgconverteres is bad.
I looked in noob section and found no bin and fls v10 files (Kdz yes).Could you give me a link to download bin and kdz v10 files.
Thank you.

[Q] bootloader help

Hello.I am having a problem.I have v20a oficiall rooted (v20a 262.100).I want to unlock my bootloader and i want to go to a euro open version to do so.I am using kdz to upgrade but no luck....it reboots to my version...I have stuck.....:silly:
emplokeas said:
Hello.I am having a problem.I have v20a oficiall rooted (v20a 262.100).I want to unlock my bootloader and i want to go to a euro open version to do so.I am using kdz to upgrade but no luck....it reboots to my version...I have stuck.....:silly:
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7
RuedasLocas said:
http://forum.xda-developers.com/showpost.php?p=38838927&postcount=7
Click to expand...
Click to collapse
yes i know i can downgrade,but i was looking on anu other way,to avoid that....
emplokeas said:
yes i know i can downgrade,but i was looking on anu other way,to avoid that....
Click to expand...
Click to collapse
Thats not to downgrade. its to try it with a clean install.
LGFlash Tool will wipe everything, create needed partitions and will format others, in the end will command a factory reset soo... when
your phone reboot after flash, you'll see the Android preparing for "first" boot.
If you can't get an euro_open with that method, forget about it.
Be euro_open or not, depends on your device region.

[Q] Return to locked bootloader/u-boot

I am planning to update to IZS v1 with the unlocked V30 u-boot. I have all the files but would also like to have my downgrade path back to Zeus 7.06 sorted. For that I need to be able to flash a locked V20 u-boot as far as I understand. Huexxx said in the IZS thread he would make a downgrade pack when he has time but it is not on his website yet. Is there a different way?
i usually keep a copy of the official LG v20g rom to flash back using smartflash tool.
get the official roms here:
http://lg-phone-firmware.com/index.php?id_mod=1
i used this tool to covert KDZ to a patched bin/fls
http://forum.xda-developers.com/showthread.php?t=1692191
SmartFlash Tool will always help you in many situations...

[REQUEST] Software version v10a for d405

Hi.
Can somebody help me with d405 v10a kdz file? Or an alternative to have v10a on my phone?
I have updated my d405 from 10a to 10b a week ago before i knew about CM11. Now, i can't install custom recovery because the bootloader unlocking is only for d405 v10a. I tried flashing v10a recovery over v10b and when i select "erase all user data" the phone is showing "formatting user data.." and after 5 seconds the screen turns black and the phone freezes.
nesincodrut said:
Hi.
Can somebody help me with d405 v10a kdz file? Or an alternative to have v10a on my phone?
I have updated my d405 from 10a to 10b a week ago before i knew about CM11. Now, i can't install custom recovery because the bootloader unlocking is only for d405 v10a. I tried flashing v10a recovery over v10b and when i select "erase all user data" the phone is showing "formatting user data.." and after 5 seconds the screen turns black and the phone freezes.
Click to expand...
Click to collapse
I can get you a D405n 10a KDZ.
Will it help?
EDIT: Also, did you try http://lg-firmware-rom.com/ to see if the 10a KDZ is still available to you?
razoract said:
I can get you a D405n 10a KDZ.
Will it help?
EDIT: Also, did you try http://lg-firmware-rom.com/ to see if the 10a KDZ is still available to you?
Click to expand...
Click to collapse
Thank you for your answer! I'm afraid of trying d405n firmware on d405 because there might be conflicts with the phone and i end up with a brick. I searched the internet for the rom i need but i could not find it. I have to search again, maybe i missed something.
nesincodrut said:
Thank you for your answer! I'm afraid of trying d405n firmware on d405 because there might be conflicts with the phone and i end up with a brick. I searched the internet for the rom i need but i could not find it. I have to search again, maybe i missed something.
Click to expand...
Click to collapse
Try the lg site I sent you.
I'm also having kind of a problem right know since aboot is only for D405 V10a, and I have a D405n V10a (no aboot, only for V10b)..
razoract said:
Try the lg site I sent you.
I'm also having kind of a problem right know since aboot is only for D405 V10a, and I have a D405n V10a (no aboot, only for V10b)..
Click to expand...
Click to collapse
I searched that site. No luck for me today why don't you try upgrade to v10b with stock OTA lg application ?
nesincodrut said:
I searched that site. No luck for me today why don't you try upgrade to v10b with stock OTA lg application ?
Click to expand...
Click to collapse
Can't... Says that I'm on the latest version of the OS, sucks.
You could force update through LG Mobile Support Tool
Wysłane z mojego LG-D405n przy użyciu Tapatalka
maravic said:
You could force update through LG Mobile Support Tool
Wysłane z mojego LG-D405n przy użyciu Tapatalka
Click to expand...
Click to collapse
Didn't know that, will try!
i tried the procedure with the aboot from d405n_v10b and it worked. I now have cyanogen installed.
Boot
But there is hacked boot for D405 V10B search on 4PDA russian speaking forum.
Silen77 said:
But there is hacked boot for D405 V10B search on 4PDA russian speaking forum.
Click to expand...
Click to collapse
But I have a D405n not a D405.
nesincodrut said:
i tried the procedure with the aboot from d405n_v10b and it worked. I now have cyanogen installed.
Click to expand...
Click to collapse
Great to know that, will give it a try next weekend.
Quick question, I have a d405n v10a when I enter my imei at http://lg-firmware-rom.com/ I downloaded D40510C, is it safe to flash it?
I want to unroot and flash stock
bacitoto said:
Quick question, I have a d405n v10a when I enter my imei at http://lg-firmware-rom.com/ I downloaded D40510C, is it safe to flash it?
I want to unroot and flash stock
Click to expand...
Click to collapse
Normaly it's ok. You loose root and custom recovery.

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