Stuck in Boot Loop after OTA - LG Optimus 4X HD

As the title says I got a message to upgrade my phone to V20B over OTA and after the update got downloaded my phone is stuck into bootloop. I have a rooted Optimus 4X with unlocked bootloader. Before upgrade I reverted to stock kernel and was always running the stock room and I also had CWM recovery installed.
So I was wondering if the only way to repair the phone over the LG update software and run repair? Since I cannot boot into CWM with Power + Volume-. Finally will I loose all my data since the last back-up I had was from few months ago and I was stupid enough not to make a back-up before commencing the update.
Thank you for your help.

krusha03 said:
As the title says I got a message to upgrade my phone to V20B over OTA and after the update got downloaded my phone is stuck into bootloop. I have a rooted Optimus 4X with unlocked bootloader. Before upgrade I reverted to stock kernel and was always running the stock room and I also had CWM recovery installed.
So I was wondering if the only way to repair the phone over the LG update software and run repair? Since I cannot boot into CWM with Power + Volume-. Finally will I loose all my data since the last back-up I had was from few months ago and I was stupid enough not to make a back-up before commencing the update.
Thank you for your help.
Click to expand...
Click to collapse
You can flash the stock rom from kdz check general section.Yes if you dont have a nandroid backup you will.lose everything
Στάλθηκε από το LG-P880 μου χρησιμοποιώντας Tapatalk 2

GRG13 said:
You can flash the stock rom from kdz check general section.Yes if you dont have a nandroid backup you will.lose everything
Στάλθηκε από το LG-P880 μου χρησιμοποιώντας Tapatalk 2
Click to expand...
Click to collapse
Thanks for the info, i will look into it. Do you have any idea why this would happen? Are you not supposed to make OTA updates if you have CWM recovery / unlocked bootloader?

krusha03 said:
As the title says I got a message to upgrade my phone to V20B over OTA and after the update got downloaded my phone is stuck into bootloop. I have a rooted Optimus 4X with unlocked bootloader. Before upgrade I reverted to stock kernel and was always running the stock room and I also had CWM recovery installed.
So I was wondering if the only way to repair the phone over the LG update software and run repair? Since I cannot boot into CWM with Power + Volume-. Finally will I loose all my data since the last back-up I had was from few months ago and I was stupid enough not to make a back-up before commencing the update.
Thank you for your help.
Click to expand...
Click to collapse
try boot using power + volume up

Use kdz flasher, you wont lose any data afaik, but will lose root, custom recovery and any system changes you made

krusha03 said:
Thanks for the info, i will look into it. Do you have any idea why this would happen? Are you not supposed to make OTA updates if you have CWM recovery / unlocked bootloader?
Click to expand...
Click to collapse
Flashing an update from OTA always carries a risk if you have modified your device.

Related

[Q] Help Unlocked Bootloader Message

Someone have the logo_signed for Retail EU JB? I just want it to quit this message "Warning Unlocked"
Thanks in advance...
AW: [Q] Help Unlocked Bootloader Message
There's no logo.bmp for jb. We have to life with it. Moto isn't stupid > They upgraded the secure Level of the unlocked Logo and doesn't give us the ability to change it anymore.
Sent from my XT890
HSD-Pilot said:
There's no logo.bmp for jb. We have to life with it. Moto isn't stupid > They upgraded the secure Level of the unlocked Logo and doesn't give us the ability to change it anymore.
Sent from my XT890
Click to expand...
Click to collapse
Yup
Only thing I can think of is downgrading the boot loader... But Motorola stated the radio and boot loader cannot be flashed away from the current required signature, this would include secure version checks I'd assume. Which explains why people bricked trying to RSD back to ICS after doing the full ota update.
Sent from my Galaxy Nexus using Tapatalk 2
So.. I have to live with this horrible message? its sad...
AW: [Q] Help Unlocked Bootloader Message
We can downgrade with RSD if the Bootloader is unlocked. But we have to delete the line gpt.bin and motoboot.
I had to do it by myself today, because my i won't boot into the System or recovery anymore. I tried some stuff today. Switching between the full OTA's.
I was able to switch from EU JB OTA to O2 JB with the Homemades. But after i tried to revert back to EU JB with the same method the OTA aborted by setting simlinks and permissions. No Recovery was working (CWM or Stock) and it stucked @ the warning Logo.
RSD saved my ass and i did an Backup of my Retail EU JB before i started to mess around. So i'm back on track :thumbup:
Sent from my XT890
HSD-Pilot said:
We can downgrade with RSD if the Bootloader is unlocked. But we have to delete the line gpt.bin and motoboot.
I had to do it by myself today, because my i won't boot into the System or recovery anymore. I tried some stuff today. Switching between the full OTA's.
I was able to switch from EU JB OTA to O2 JB with the Homemades. But after i tried to revert back to EU JB with the same method the OTA aborted by setting simlinks and permissions. No Recovery was working (CWM or Stock) and it stucked @ the warning Logo.
RSD saved my ass and i did an Backup of my Retail EU JB before i started to mess around. So i'm back on track :thumbup:
Sent from my XT890
Click to expand...
Click to collapse
do i have to downgrade to ICS and quit this message?
Don't know how exactly but i'm bootloader unlocked and currently running the EU jelly bean (installed via the homemade fastboot) and I don't have the warning message.
crunchie-uk said:
Don't know how exactly but i'm bootloader unlocked and currently running the EU jelly bean (installed via the homemade fastboot) and I don't have the warning message.
Click to expand...
Click to collapse
>installed via the homemade fastboot
There ya go.
Sent from my Galaxy Nexus using Tapatalk 2
mattlgroff said:
>installed via the homemade fastboot
There ya go.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
So, with JB, who used homemade fastboot AND DON'T USED OTA (capital to alert others), can still change the logo the same way?
diogo.sena said:
So, with JB, who used homemade fastboot AND DON'T USED OTA (capital to alert others), can still change the logo the same way?
Click to expand...
Click to collapse
Homemade doesn't increase the secure version or use partition tables that the ota update does.
Sent from my Galaxy Nexus using Tapatalk 2
M logo on JB
mattlgroff said:
Homemade doesn't increase the secure version or use partition tables that the ota update does.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
So Matt there's no way to change the logo on devices unlocked with OTA JB Retail.EU that have the Unlock Warning Message?
It shows that message coming from a particular sector of the kernel? The BMP code is embedded?
Thx in advance

[Q] i have a moto x dev edition vzw

here my problem i've unlocked bootloader rooted and installed twrp but i cant update my phone to 4.4. everytime i take the ota update my phone just boots and shutdowns and repeats. any suggestions?
bk07 said:
here my problem i've unlocked bootloader rooted and installed twrp but i cant update my phone to 4.4. everytime i take the ota update my phone just boots and shutdowns and repeats. any suggestions?
Click to expand...
Click to collapse
you're rooted trying to do an OTA?
once you root, accepting an OTA can mess up your phone or make you lose root.
PremierGT said:
you're rooted trying to do an OTA?
once you root, accepting an OTA can mess up your phone or make you lose root.
Click to expand...
Click to collapse
idc about losing root b/c it has an unlockedbootloader getting root back is the easy part i do want the update to 4.4 though
bk07 said:
idc about losing root b/c it has an unlockedbootloader getting root back is the easy part i do want the update to 4.4 though
Click to expand...
Click to collapse
flash back to stock recovery. then do OTA. should work for you.
PremierGT said:
flash back to stock recovery. then do OTA. should work for you.
Click to expand...
Click to collapse
i've tryed that as well
bk07 said:
i've tryed that as well
Click to expand...
Click to collapse
don't flash back to it in twrp. use rsdlite or manually flash it with fastboot commands. if you actually flashed the full ota and didn't have root or twrp anymore then you would be able to take the OTA no problem.
jayboyyyy said:
don't flash back to it in twrp. use rsdlite or manually flash it with fastboot commands. if you actually flashed the full ota and didn't have root or twrp anymore then you would be able to take the OTA no problem.
Click to expand...
Click to collapse
Oddly I've done that even before I put twrp on my phone I used mfastboot with the stock IMG I got from moto. I did the update right when I got the phone and it did what I described so I thought I for find a something where I could flash stock to my phone by using twrp.
Download Motorola device manager. It should automatically restore the software to stock 4.4.
http://d1tsx1og7dz7v4.cloudfront.net/MotorolaDeviceManager_2.4.5.exe
thx for the help i had to mfastboot 4.4
This is your easiest option. All you need to do is run this utility. It will install drivers, download firmware, and flash back to stock. I used it earlier, and it's brilliant.
Even if you've already solved your problem, I highly recommend saving this for later use.
http://forum.xda-developers.com/showthread.php?t=2597625

[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

Rebooting problem after trying to update to Marshmallow

I got a notification that my phone was able to update to Marshmallow today so downloaded the update and set the installation on its way. The problems start here, when rebooting after starting the installation it boots into TWRP, I'd previously rooted my phone but unrooted it after a while, though all I did was select the unroot option on SuperSU and didnt relock the bootloader or anything like that.
The TWRP is v2.8.7.0, and my Moto G is a XT1072 version and currently running 5.0.2.
Im tempted to factory reset but worried that might brick my phone. Any help is greatly appreciated.
Cheers
FlashHouse said:
I got a notification that my phone was able to update to Marshmallow today so downloaded the update and set the installation on its way. The problems start here, when rebooting after starting the installation it boots into TWRP, I'd previously rooted my phone but unrooted it after a while, though all I did was select the unroot option on SuperSU and didnt relock the bootloader or anything like that.
The TWRP is v2.8.7.0, and my Moto G is a XT1072 version and currently running 5.0.2.
Im tempted to factory reset but worried that might brick my phone. Any help is greatly appreciated.
Cheers
Click to expand...
Click to collapse
You can´t update via OTA with a custom recovery like twrp installed. You have to be on stock recovery and the latest full unrooted non-modified stock firmware. Unlocked BL is no problem and doesn´t matter.
In most cases just unrooting and flashing back stock recovery is not enough because there still could be small changes which will make the OTA installation fail.
Nevertheless you can try that or you flash the latest 5.0.2 stock firmware.
Wolfcity said:
You can´t update via OTA with a custom recovery like twrp installed. You have to be on stock recovery and the latest full unrooted non-modified stock firmware. Unlocked BL is no problem and doesn´t matter.
In most cases just unrooting and flashing back stock recovery is not enough because there still could be small changes which will make the OTA installation fail.
Nevertheless you can try that or you flash the latest 5.0.2 stock firmware.
Click to expand...
Click to collapse
Anex to words of Wolfcity, if you want to update via OTA you will need to install stock recovery and stock rom of LP, there is a procedure with a toolkit that you can easily find in general forum. The tool kit will help you to back again at the beginning. Nevertheless, why use stock firmware with a lot of cool roms to flash? [emoji4] [emoji106]
Enviado desde mi Moto G 2014 mediante Tapatalk
---------- Post added at 08:42 AM ---------- Previous post was at 08:34 AM ----------
Sorry mate, the toolkit is in Android development forum, here is the link http://forum.xda-developers.com/showthread.php?t=2979862
Enviado desde mi Moto G 2014 mediante Tapatalk

Faq about official fota updates

Here I wrote down some of my experiences regarding fota updates of Asus Zenfone Max pro m1(6gb).
I unlocked my phone with unofficial method. Don't know what will happen if you use official method.
1>> if you unlocked the bootloader still you can get fota updates.
2>> if you root your phone by magisk then also you can get fota updates.
3>> if your recovery is twrp then also you can get fota updates as usual.
***** BUT FOR INSTALLING THE FOTA UPDATE YOU MUST UNROOT YOUR PHONE AND YOUR RECOVERY MUST BE STOCK.
Except the *****BUT part all 3 points are true.
You can flash the updated stock ROM too, without unrooting and with a custom recovery like twrp.
akshmau5 said:
Except the *****BUT part all 3 points are true.
You can flash the updated stock ROM too, without unrooting and with a custom recovery like twrp.
Click to expand...
Click to collapse
Yes i know that but here i tell about the official fota , not the modified zip which available in xda thread.
Rommaster94 said:
Yes i know that but here i tell about the official fota , not the modified zip which available in xda thread.
Click to expand...
Click to collapse
Oh well, didn't know that part.
Still, tricky situation for everytime wanting to update, you gotta unroot, flash the stock recovery and lock the BL(little tricky perhaps). With all our precious data being wiped and stuff each time for a mere update.
Just my 2 cents.
akshmau5 said:
Oh well, didn't know that part.
Still, tricky situation for everytime wanting to update, you gotta unroot, flash the stock recovery and lock the BL(little tricky perhaps). With all our precious data being wiped and stuff each time for a mere update.
Just my 2 cents.
Click to expand...
Click to collapse
No bro, you don't need a locked bootloader for fota update and all your precious data will be saved after upgrade.
Recently i updated my azmp1 from 331 to 334 and all working like charm
Rommaster94 said:
No bro, you don't need a locked bootloader for fota update and all your precious data will be saved after upgrade.
Recently i updated my azmp1 from 331 to 334 and all working like charm
Click to expand...
Click to collapse
Oh, well. Didn't know that.
Good stuff.
...only if you unlock your bootloader with unofficial method.
Using official unlock app, however, will permanently void your warranty and ensure that your device gets blacklisted from receiving OTA updates after successful unlock.
Sent from my ASUS_X00TD using XDA Labs
Rommaster94 said:
No bro, you don't need a locked bootloader for fota update and all your precious data will be saved after upgrade.
Recently i updated my azmp1 from 331 to 334 and all working like charm
Click to expand...
Click to collapse
How did you do this ?
Did you flash the stock recovery ? If so, where can I find just the recovery ?
Or did you just update and the rest was automatic ?
camlin said:
How did you do this ?
Did you flash the stock recovery ? If so, where can I find just the recovery ?
Or did you just update and the rest was automatic ?
Click to expand...
Click to collapse
Stock recovery thread--
https://forum.xda-developers.com/as...ck-recovery-image-zenfone-max-pro-m1-t3790343
You must have stock recovery and unrooted phone for successful fota updating.
Hey anyone using substratum theme engine without root and still getting the update

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