[GUIDE] Unlook bootloader, install custom rom LG L90 d410 v20c - LG Optimus L90

I encountered many problems as a beginner to install a custom ROM on my LG L90 D410 v20c Europe, because struggled to receive support, I posted on dozen of posts and never received any answer, since most of the developers have probably abandoned this phone.
So I post below what I did and worked for me. This doesn't mean it will work for you and I assume no responsibility.
PLEASE, USE THIS TUTORIAL AT YOUR OWN RISK, IF SOMETHING WENT WRONG ME OR XDA WILL NOT RESPONSIBLE FOR YOUR LOSS. Always do backups before of every operation if you are unsure of the outcome
Click to expand...
Click to collapse
I had my phone in a rooted state, with this guide
Then I couldn't find any unlocked aboot for v20c. Some were saying it was safe to use aboot file for 20b or 20s, but some were saying it was risky and if it did work, I would have lost my imei. I eventually also found an aboot for v20c from a russian website.
But in the end I decided to be safe and restore a previous stock version where there was a verified couple of KDZ and aboot. I choose version 10d.
I downloaded the file KDZ of the stock OS from this link, that looks to be from the LG website itself
http://tool.xcdn.gdms.lge.com/dn/downloader.dev?fileKey=FW682806432109876543213/D41010d_00.kdz
and followed this guide to restore stock 10d
To download aboot file and successfully unlocking bootloader I followed this guide
Earlier I've tried also this guide and it DIDN'T work for me. It entered in a boot loop that I solved but then it couldn't install any recovery. It might work for you, but it didn't for me.
With the previous working guide I installed the old version of twrp, then restarted, installed the official APP of tpwr and from there I upgraded to the latest version.
I restarted in recovery and backup up my partitions, imei, etc.
At this point the most difficult part is done, and now you just have to follow the standard procedure to install a custom rom and gapps, downloading the versions of your choice in the SD, restarting in recovery mode and installing.
Here more details
I hope it will help other beginners in the same situation as me.
Unfortunately I can't provide support on anything since I'm a beginner myself.

I have a stock frimware of v10a how to unlock frimware

Related

[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&A] [ROM] 5.0.2 Stock-ROM - LG D415 L90

Q&A for [ROM] 5.0.2 Stock-ROM - LG D415 L90
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for [ROM] 5.0.2 Stock-ROM - LG D415 L90. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!
brossovitch said:
Xposed framework crashes the phone.. Testing will not commence..
I never needed it anyway..
Click to expand...
Click to collapse
This is kind of a deal breaker for me, that and the broken rar archive. BUT when it starts working I would like to use your ROM because I love stock roms with minor modifications and debloat. Did you use this xposed framework? http://forum.xda-developers.com/showthread.php?t=3034811
When I flashed the completely stock version, it broke, no data/wifi/bluetooth, and everything crashed. I think it was because I wiped first and since this is an OTA I shouldn't have done that, but now I am worried about trying again, since I just got my phone back up and running. I must say thanks for that, because flashing using TWRP and your ROM gave me TWRP back, so I was able to downgrade back to 410c stock from your ROM. I'll wait for the radio problem to be fixed before I try again.
Hi, I'm new here, but not to android.
imonlyhumanoid said:
This is kind of a deal breaker for me, that and the broken rar archive. BUT when it starts working I would like to use your ROM because I love stock roms with minor modifications and debloat. Did you use this xposed framework? http://forum.xda-developers.com/showthread.php?t=3034811
When I flashed the completely stock version, it broke, no data/wifi/bluetooth, and everything crashed. I think it was because I wiped first and since this is an OTA I shouldn't have done that, but now I am worried about trying again, since I just got my phone back up and running. I must say thanks for that, because flashing using TWRP and your ROM gave me TWRP back, so I was able to downgrade back to 410c stock from your ROM. I'll wait for the radio problem to be fixed before I try again.
Hi, I'm new here, but not to android.
Click to expand...
Click to collapse
You can flash safely with TWRP. Go ahead and upgrade to Stock Lollipop via KDZ then you can try flashing one of brossovitch's ROM. It worked for me. Just follow this http://forum.xda-developers.com/showthread.php?t=3088131 guide if you get broken IMEI or/and Baseband. It will help you get it back as well as get Lollipop on you phone.
Good luck!
So if I read that right, you have to flash the Stock 5.0.2 using TWRP, then flash the Stock 4.4.2 using the LG Flash Tool, then flash the Stock 5.0.2 using the LG Flash Tool, then root then unlock bootloader (is that necessary with the D415? I never did that before) and then use Rashr to flash TWRP and then flash brossovitch's LollipOptimus ROM, just to get the IMEI/Baseband to work? Seems like a lot of hurdles. Why not just flash the 5.0.2 KDZ and then root and flash TWRP possibly with or without bootloader unlocking and then flash the LollipOptimus ROM, or even just flashing it like an OTA from TWRP? Will the LG Official OTA break the IMEI/Baseband?
And has anyone tried the linked Xposed framework?
Thanks for your help!
imonlyhumanoid said:
So if I read that right, you have to flash the Stock 5.0.2 using TWRP, then flash the Stock 4.4.2 using the LG Flash Tool, then flash the Stock 5.0.2 using the LG Flash Tool, then root then unlock bootloader (is that necessary with the D415? I never did that before) and then use Rashr to flash TWRP and then flash brossovitch's LollipOptimus ROM, just to get the IMEI/Baseband to work? Seems like a lot of hurdles. Why not just flash the 5.0.2 KDZ and then root and flash TWRP possibly with or without bootloader unlocking and then flash the LollipOptimus ROM, or even just flashing it like an OTA from TWRP? Will the LG Official OTA break the IMEI/Baseband?
And has anyone tried the linked Xposed framework?
Thanks for your help!
Click to expand...
Click to collapse
No, that is if you had a failed flashed and did not have Stock Download mode which you lose if you unlock the boot loader (which is technically unlocked). Unlocking bootloader is optional, I should put that.
If you have unlocked boot loader then you need to either flash the lag.img or bross's stock ROM with laf.img in it.
imonlyhumanoid said:
So if I read that right, you have to flash the Stock 5.0.2 using TWRP, then flash the Stock 4.4.2 using the LG Flash Tool, then flash the Stock 5.0.2 using the LG Flash Tool, then root then unlock bootloader (is that necessary with the D415? I never did that before) and then use Rashr to flash TWRP and then flash brossovitch's LollipOptimus ROM, just to get the IMEI/Baseband to work? Seems like a lot of hurdles. Why not just flash the 5.0.2 KDZ and then root and flash TWRP possibly with or without bootloader unlocking and then flash the LollipOptimus ROM, or even just flashing it like an OTA from TWRP? Will the LG Official OTA break the IMEI/Baseband?
And has anyone tried the linked Xposed framework?
Thanks for your help!
Click to expand...
Click to collapse
I'm going to try xposed again.
I'm also going to upload the partitions needed to make the bseband work.. There's a way to be easily flash them to go to either.
Stock lollipop is just different. And the custom roms are based on KK. so we gotta be able to go back if we want..
We can.
With L90 utilities you can flash your laf partition or toggle it between fastboot mode & s/w Upgrade (firmware download) mode.
From there you can use adb to flash the proper partitions.
IE:"fastboot flash radio modem.bin"
Which would likely work..
brossovitch said:
With L90 utilities you can flash your laf partition or toggle it between fastboot mode & s/w Upgrade (firmware download) mode.
From there you can use adb to flash the proper partitions.
IE:"fastboot flash radio modem.bin"
Which would likely work..
Click to expand...
Click to collapse
Way cool! Where is this LG L90 tool?
SamsungIsBetterThanApple said:
Way cool! Where is this LG L90 tool?
Click to expand...
Click to collapse
You're on XDA dude.....
....learning to search for and find what you want is a priority..
All I'm going to say, is........ @shinobisoft
May the Droid be with you, young Padawan....:good:
brossovitch said:
You're on XDA dude.....
....learning to search for and find what you want is a priority..
All I'm going to say, is........ @shinobisoft
May the Droid be with you, young Padawan....:good:
Click to expand...
Click to collapse
Haha! Thanks, but just you wait. Soon the student will becoms the master.
SamsungIsBetterThanApple said:
Haha! Thanks, but just you wait. Soon the student will becoms the master.
Click to expand...
Click to collapse
I truly hope so.
When I was young, we had house phones with cords..
Pulse tone hacking is all we had back then.. LOL!
Just restored your latest nandroid and is WORKING GREAT SO FAR !!! Just one thing , how did you guys get rid of the annoying t-mobile voicemail notification ?
Am new to TWRP so excuse me for asking, but since I restored back to 4.4.2 my phone is better than it was before. I would like to upgrade, but I'd like to be able to revert back to 4.4.2 if I have a bad experience. I backed up my phone with TWRP, can I flash the kdz with the LG tool, and then root and get back to TWRP and flash the ROM to make the radio work, and then back up the 5.0.2 ROM and switch between the two?
imonlyhumanoid said:
Am new to TWRP so excuse me for asking, but since I restored back to 4.4.2 my phone is better than it was before. I would like to upgrade, but I'd like to be able to revert back to 4.4.2 if I have a bad experience. I backed up my phone with TWRP, can I flash the kdz with the LG tool, and then root and get back to TWRP and flash the ROM to make the radio work, and then back up the 5.0.2 ROM and switch between the two?
Click to expand...
Click to collapse
Follow this http://forum.xda-developers.com/showthread.php?t=3088131 guide If you have Downlode Mode, skip step 1 and since you are on KK, skip step 3.
Sent from my LollipOptimus™
Since I cannot reply directly to the main thread or the How to fix IMEI/Baseband Unknown Issue (D415) thread, I will ask here.
I am currently running the KitKat stock and rooted, with the original laf.img and TWRP recovery, de-odexed system, and several unwanted stock apps uninstalled.
From my arrangement, to upgrade, I can go to download mode using Vol + and Plug USB (because I haven't zero'd out my laf, right?), and use the 2014 LG tool to flash the Lollipop KDZ. This will cause the data/wifi/bluetooth signals to stop working, as well as losing root and TRWP (correct me if wrong). From there I would need to root and flash back TWRP and then from TWRP flash the LP-[5.0.2]_L90_D415[boot-system-laf-aboot-modem.zip] to get the signals back.
At this point, would I then be at stock rooted lollipop with TWRP and download mode and have a useable phone? If I do a CES flash as recommended, would I lose all of my currently installed apps and data? If so, I should disable xposed first, right?
imonlyhumanoid said:
Since I cannot reply directly to the main thread or the How to fix IMEI/Baseband Unknown Issue (D415) thread, I will ask here.
I am currently running the KitKat stock and rooted, with the original laf.img and TWRP recovery, de-odexed system, and several unwanted stock apps uninstalled.
From my arrangement, to upgrade, I can go to download mode using Vol + and Plug USB (because I haven't zero'd out my laf, right?), and use the 2014 LG tool to flash the Lollipop KDZ. This will cause the data/wifi/bluetooth signals to stop working, as well as losing root and TRWP (correct me if wrong). From there I would need to root and flash back TWRP and then from TWRP flash the LP-[5.0.2]_L90_D415[boot-system-laf-aboot-modem.zip] to get the signals back.
At this point, would I then be at stock rooted lollipop with TWRP and download mode and have a useable phone? If I do a CES flash as recommended, would I lose all of my currently installed apps and data? If so, I should disable xposed first, right?
Click to expand...
Click to collapse
You WILL lose all data but you need to use CES to fix, I believe, the partitions. You DO NOT have to flash the LP-[5.02]_L90_D415[boot-system-laf-aboot-modem.zip] if you go to KK then to L using Lg Flash tool. After succesful Lolli flash, then root, install twrp, and flash one of Bross's rom.
But if I want to go to stock 5.0, with twrp and download mode intact, what do I do? Flash using LG Flash Tool, root and flash twrp and I'm done? This won't cause radio problems?
imonlyhumanoid said:
But if I want to go to stock 5.0, with twrp and download mode intact, what do I do? Flash using LG Flash Tool, root and flash twrp and I'm done? This won't cause radio problems?
Click to expand...
Click to collapse
I promise, if you follow my guide, everything will be fixed. You only lose radio if you flash something wrong. For example, flashing one of bross's ROMs while on kk. That is a bad idea. After you flash to lolli with lg flash tool, you can root and flash twrp. You WILL NOT lose Download Mode unless you zero out the laf by following the Unlocking Boot loader guide.
---------- Post added at 06:24 PM ---------- Previous post was at 06:24 PM ----------
imonlyhumanoid said:
But if I want to go to stock 5.0, with twrp and download mode intact, what do I do? Flash using LG Flash Tool, root and flash twrp and I'm done? This won't cause radio problems?
Click to expand...
Click to collapse
And PLEASE do a CES flash

[Help] Rooting LG L90 D410

Hi, I've been trying to Root, Unlock Bootloader and Flash a Custom Recovery in my LG L90 D410 Running Lollipop 5.0.2 Software v20a but there are too many methods and I'm confused. Some of them is just about rooting but also want to unlock bootloader and install recovery.
Please Help ASAP.
Hi. First step is rooting. As you are on 20a you should be able to use one-step rooting (search forum), which needs a computer. If it doesn't work or you want a simpler solution, you can use Kingroot, but be aware that there are some concerns about using it due to its constant communication to Chinese servers that aren't well explained so far AFAIK. You may want to replace it with SuperSU later using a script (not easy). It will be removed later if you flash a ROM anyway...
Once rooted: backup original bootstack and modemst partitions, flash unlocked bootstack (make sure you flash one for your exact phone model), flash recovery and then you should be able to flash any ROM.
PS: most custom ROMs only work with Kitkat bootstack, then either downgrade or flash KK bootstsck before flashing custom ROM.
PS2: it seems that at least latest versions of CM 12.1 work with either Kitkat or Lollipop bootstacks, so you may want to check the most recent info about the custom ROM you want to install first.
Sent from my LG-D410 using XDA Free mobile app

million-dollar idea = hard brick bootloader

I watch all the forum ... and nothing .... It strikes me the idea that solving this problem can handle only champion. I am not and I tried on all methods.
Why XDA no solution ??? XDA's largest community of Android developers I know. There must be a solution, and I want to find him here!
Help if you can, even God
thanks
at least tell us, what seems to be a problem? As for now, it sounds like you're going to pay a milion-dollars for someone who will hardbrick your bootloader. Am I right? Send it to me, I'll hardbrick with my hammer for that cash.
I think his problem is that is Bootloader IS hardbricked and NOT that he wants it hardbricked.. BTW I have a similar problem. I installed Android 6.0 on my xt1068 using The Indian soak test update. I then decided I wanted to downgrade back to 5.0.2 and my phone is now dead completely... So yeah an answer would be nice here. Thanks
One should try to install only system, recovery, radio partiotions.
Every update Moto updates fs structure, changes bootloader and radio. These are critical and should not be installed.
PsyClip-R said:
One should try to install only system, recovery, radio partiotions.
Every update Moto updates fs structure, changes bootloader and radio. These are critical and should not be installed.
Click to expand...
Click to collapse
>These are critical and should not be installed.
More like they shouldn't be downgraded.
LuK1337 said:
>These are critical and should not be installed.
More like they shouldn't be downgraded.
Click to expand...
Click to collapse
i m on soak test 6.0 update with rooted and twrp recovery and also have a twrp backup of stock rooted 5.0.2 so how can i get and install further ota updates ? can i restore from twrp backup of stock rooted 5.0.2 and then flash 5.0.2 to stay stock and get ready for updates please help as i know bootloader downgrade will brick my device
Blur_Version.24.41.34.titan_retaildsds.retaildsdsall.en.03.zip
has a gpt.bin file is it possible to replace the gpt.bin from 5.0.2 firmware files with one that is present in blur zip please help
my current bootloader is 48.86 i used xt1069 's marshmallow previously
I FLASHED XT1068_TITAN_RETAILDSDS_5.0.2_LXB22.99-16.3_Easy_Installer.zip ON BOOTLOADER 48.86 VIA FASTBOOT IT GIVES ME MSG IN PINK ( version downgrade for _gpt and version downgrade for tz) and rest is worked fine it successfully booted into the stock 5.0.2 after that i updated soak test update of 6.0 by coping blurred version into sd card and checking it by going into settings >about phones >system updates
so not faced any problem as of now i m sure what i done i have a video proof also that i flashed (XT1068_TITAN_RETAILDSDS_5.0.2_LXB22.99-16.3_Easy_Installer.zip ON BOOTLOADER 48.86)
Sorry could you please explain that in beginner's lanuguage?
---------- Post added at 07:47 AM ---------- Previous post was at 07:42 AM ----------
I've bricked my boot loader by downgrading and have taken it in for repair to my local cellphone repair guy and he told me it's dead and unfix-able. I was told to go to Motorola to get them to fix it except THERE is no Motorola service at all for South Africa... So I'm screwed?

Relock device (bootloader and FRP)

Hi,
Device: EVA-L19
Short background: I need to return the phone due to hardware problem. Color camera won't focus and I believe this is a hardware issue as I've tried flashing a different ROM. The problem is I have rooted my phone.
I tried the SRK Tool to relock the bootloader but after I reboot it just gets stuck in recovery mode doesn't even boot to system.
Is there any website I could download the stock rom for EVA-L19? Is there any guide in which I could refer to reverse all the things I made (bootloader, unroot, etc)?
Any help appreciated. :good:
Thanks.
fapout said:
Hi,
Device: EVA-L19
Short background: I need to return the phone due to hardware problem. Color camera won't focus and I believe this is a hardware issue as I've tried flashing a different ROM. The problem is I have rooted my phone.
I tried the SRK Tool to relock the bootloader but after I reboot it just gets stuck in recovery mode doesn't even boot to system.
Is there any website I could download the stock rom for EVA-L19? Is there any guide in which I could refer to reverse all the things I made (bootloader, unroot, etc)?
Any help appreciated. :good:
Thanks.
Click to expand...
Click to collapse
There are a lot of threads, discussions and guides here on XDA
First of all, you must know which cust cXXX and build bYYY you are looking for your L19, installations can differ
You can install FirmwareFinder app from Google Play (there is also a thread here about), from that app you can download particular ROMs
Generally, if you just rooted your phone, you should unroot (depending how did you Root it) and then you can reinstall the same cust and build (to clear all records of rooting) - use FF app, FullOTA-MF-PV versions can be easily installed by DLOAD method (which is described elsewhere in Huawei P9 threads)
At the end, you will probably also need to re-lock bootloader - for rooting, you should have installed TWRP, and for that you needed unlocked bootloader and FRP
To revert, best follow/ask in the threads you were following when rooting etc

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