Database Users

Trying to flash Cyanogen 12.1 to Asus Zenfone 2 Laser ZE551KL Z00TD

I'm trying to flash CM 12.1 to my ZE551KL. I have the most recent nightly and the gapps zips. I tried to flash the ROM and kept getting a signature not verified error that I forget the exact wording of. I researched a bit and concluded that I need to unlock the boot loader. So here's where the problem starts. Asus makes a boot loader that will work on my phone but requires firmware 1.16.40.763. My phone won't update past 1.15 something. And that's odd to me since I just got it yesterday.
I tried to use the Asus boot unlocker anyway but nothing happened because my phone won't update to firmware 1.16.40.763. I saw a firmware update to 1.16.40.763 on the Asus website for the Z00T. I have the Z00TD. Will the Z00T firmware brick my phone or work on my phone? My thought it that if it works I can run the boot unlocker that requires 1.16.40.763 and then with the boot loader unlocked I should stop receiving the signature invalid error when I try to flash CM12.1. Does that sound about right? This is my first time flashing CM myself.
Thank you for your help and thoughts.

You should only flash a ROM that's made specifically for your device.
It's actually a good thing for you that it did not flash.
http://wiki.cyanogenmod.org/w/Unofficial_Ports#Asus - Zenfone 2 Laser is not in the cyanogenmod list.

David McDavid said:
I'm trying to flash CM 12.1 to my ZE551KL. I have the most recent nightly and the gapps zips. I tried to flash the ROM and kept getting a signature not verified error that I forget the exact wording of. I researched a bit and concluded that I need to unlock the boot loader. So here's where the problem starts. Asus makes a boot loader that will work on my phone but requires firmware 1.16.40.763. My phone won't update past 1.15 something. And that's odd to me since I just got it yesterday.
I tried to use the Asus boot unlocker anyway but nothing happened because my phone won't update to firmware 1.16.40.763. I saw a firmware update to 1.16.40.763 on the Asus website for the Z00T. I have the Z00TD. Will the Z00T firmware brick my phone or work on my phone? My thought it that if it works I can run the boot unlocker that requires 1.16.40.763 and then with the boot loader unlocked I should stop receiving the signature invalid error when I try to flash CM12.1. Does that sound about right? This is my first time flashing CM myself.
Thank you for your help and thoughts.
Click to expand...
Click to collapse
Where did you download the CM-12 ROM? Are you sure it's for the ZE551KL?

I'm on the same firmware and the bootloader unlock apk does work, though it leaves no indication after the phone restarts. My guess is that you're phone is bootloader unlocked just fine, but you're trying to flash a rom that wasn't built for ZE551KL (Z00TD).

I'm assuming all of you have already rooted your device and was wondering if you can point me to the files needed so that I can root my Z00TD (ZE551KL)..just got this phone yesterday and switched from a lgg3. Have been looking everywhere and can't seem to find the files needed for thiss specific device..thanks

tmjm28 said:
I'm assuming all of you have already rooted your device and was wondering if you can point me to the files needed so that I can root my Z00TD (ZE551KL)..just got this phone yesterday and switched from a lgg3. Have been looking everywhere and can't seem to find the files needed for thiss specific device..thanks
Click to expand...
Click to collapse
HampTheToker wrote up a nice tutorial fro the ZE551KL:
http://forum.xda-developers.com/showpost.php?p=65264766&postcount=7

Confusion and/or problem with vendor - Help greatly appriciated

Hello everyone. So I'm brand new to not only xda but rooting and the likes all together. Yesterday I rooted my nexus 6p without issue and I will now list what I used. Twrp 3.0.0 -1-angler, BETA-SuperSU-v2.67-20160121175247. My phone build was MMB29P. then I flashed on pure_nexus_angler-6.0.1-20160315-CMTE and PureNexus_Dynamic_GApps_6.x.x_3-15-16.zip. Now my phone is saying its build MHC19J. I don't know if that is normal, but now I'm confused. When I boot up I get an Android System message saying " It appears your vendor image may be out of date. Please flash the latest vendor image for your device. " So followed the link to the vendor images and I see the list of vendor images however I don't see my build MHC19J.. or am I to get MMB29P? also once I do get it downloaded and load up twrp I see the option to click image and there's several boxes there to check/uncheck.. Do i just check vendor? So put as short as possible I need to know which vendor image i should get and how to flash it from twrp. Thanks for reading and your help will be greatly appreciated.
Also I almost forgot.. Will i need to flash a raido file or anything like that??

Read this first: http://forum.xda-developers.com/showpost.php?p=64399854
Then read this: http://forum.xda-developers.com/showpost.php?p=65102741&postcount=7741
The answers to your question are both in those links, which you should ALWAYS read. You'll thank me later for making you read those.

Danzilla79 said:
Hello everyone. So I'm brand new to not only xda but rooting and the likes all together. Yesterday I rooted my nexus 6p without issue and I will now list what I used. Twrp 3.0.0 -1-angler, BETA-SuperSU-v2.67-20160121175247. My phone build was MMB29P. then I flashed on pure_nexus_angler-6.0.1-20160315-CMTE and PureNexus_Dynamic_GApps_6.x.x_3-15-16.zip. Now my phone is saying its build MHC19J. I don't know if that is normal, but now I'm confused. When I boot up I get an Android System message saying " It appears your vendor image may be out of date. Please flash the latest vendor image for your device. " So followed the link to the vendor images and I see the list of vendor images however I don't see my build MHC19J.. or am I to get MMB29P? also once I do get it downloaded and load up twrp I see the option to click image and there's several boxes there to check/uncheck.. Do i just check vendor? So put as short as possible I need to know which vendor image i should get and how to flash it from twrp. Thanks for reading and your help will be greatly appreciated.
Also I almost forgot.. Will i need to flash a raido file or anything like that??
Click to expand...
Click to collapse
The vendor version you need is MHC19I which you can download following the link on the first post on the pure nexus ROM. Flash it via TWRP by hitting the flash img button and then selecting the vendor partition (duh). It's also good to make sure you are running the latest bootloader and radio (the bootloader should be on version 3.51 and the radio on 3.61).

Out of my depth with MultiROM/TWRP problem; could use some guidance

Hi, All . . .
I believe it would be appropriate to label me as an intermediate-to-advanced newbie. That is, I'm not clueless, but there are lots of blind spots in my knowledge.
I just bought a 6P and while I've been waiting for my SIM card to arrive, I've gone ahead and rooted, installed TWRP 3.0.3-0, and made a few customizations here and there. One thing I don't understand is the significance of the vendor image now. I'm coming from a 6 where that wasn't an issue. Also, in the rooting instructions it indicates that one should "find the correct vendor image," without really indicating how one can go about learning which one is "right." In the end, I took the latest one I could find, because my phone did an OTA update and I simply reasoned that I should match latest with latest.
In any case, I want to install MultiROM and I keep running into this problem:
The MultiROM version of TWRP doesn't load. It hangs on the splash screen. The version it uses is 3.0.2-0, so I suspected it was an issue with that. I flashed the TWRP-only recovery version 3.0.2-0 after having no luck, and it wouldn't load beyond the splash screen, either. Finally, I re-flashed the stock system recovery and tried flashing both the 3.0.2-0 TWRP-only recovery and the MultiROM-integrated version, both without success.
Is there something about the move from 3.0.2-0 to 3.0.3-0 that makes a rollback impossible. Is it even necessary?
Re-flashing 3.0.3-0 solved the problem of basic functionality. TWRP comes right up after I do that. But I can't get the MultiROM recovery or the 3.0.2-0 TWRP recovery to work no matter what I try.
My phone says that the vendor version is N4F26J and my "build number" is N6F26Q, and I'm running PureNexus 7.1.1. Those two numbers appear like a mismatch to me, but everything I could find indicated that the vendor version I have, being the latest, is the right one.
What am I missing? Can someone with more experience solve this puzzle, or at least lead me in a direction where I know which questions to ask on my own and can get things to start making sense again?
I appreciate your help! Thanks!

KilgoreTrout71 said:
Hi, All . . .
I believe it would be appropriate to label me as an intermediate-to-advanced newbie. That is, I'm not clueless, but there are lots of blind spots in my knowledge.
I just bought a 6P and while I've been waiting for my SIM card to arrive, I've gone ahead and rooted, installed TWRP 3.0.3-0, and made a few customizations here and there. One thing I don't understand is the significance of the vendor image now. I'm coming from a 6 where that wasn't an issue. Also, in the rooting instructions it indicates that one should "find the correct vendor image," without really indicating how one can go about learning which one is "right." In the end, I took the latest one I could find, because my phone did an OTA update and I simply reasoned that I should match latest with latest.
In any case, I want to install MultiROM and I keep running into this problem:
The MultiROM version of TWRP doesn't load. It hangs on the splash screen. The version it uses is 3.0.2-0, so I suspected it was an issue with that. I flashed the TWRP-only recovery version 3.0.2-0 after having no luck, and it wouldn't load beyond the splash screen, either. Finally, I re-flashed the stock system recovery and tried flashing both the 3.0.2-0 TWRP-only recovery and the MultiROM-integrated version, both without success.
Is there something about the move from 3.0.2-0 to 3.0.3-0 that makes a rollback impossible. Is it even necessary?
Re-flashing 3.0.3-0 solved the problem of basic functionality. TWRP comes right up after I do that. But I can't get the MultiROM recovery or the 3.0.2-0 TWRP recovery to work no matter what I try.
My phone says that the vendor version is N4F26J and my "build number" is N6F26Q, and I'm running PureNexus 7.1.1. Those two numbers appear like a mismatch to me, but everything I could find indicated that the vendor version I have, being the latest, is the right one.
What am I missing? Can someone with more experience solve this puzzle, or at least lead me in a direction where I know which questions to ask on my own and can get things to start making sense again?
I appreciate your help! Thanks!
Click to expand...
Click to collapse
Hey there,
Regarding your TWRP 3.0.2-0/MultiRom 3.0.2-0 and TWRP 3.0.3 issues, check out post #1152 in the official TWRP 6P thread. If there is an update to MR to support Nougat encryption, you'll just have to follow the MR thread or Github for updates.
Here's a brief explainer from my guide in the Nexus 5X forums about Vendor.img:
9. After updating my ROM, I get this message on every boot: "There's an internal problem with your device. Contact your manufacturer."
This warning signifies a mismatched vendor and system partition. The vendor partition was integrated in the system partition for previous Nexus devices but is now a separate partition that must be flashed for each Google security update. Download a factory image and update your vendor partition using fastboot so that it matches your rom's OS base. If you have a file explorer installed on your phone, you can determine which vendor.img is installed by navigating to /vendor/build.prop and clicking on the build.prop. The specific vendor installed will be a combination of six numbers and letters listed in all capitals (example: NMF26F) in the ro.vendor.build.fingerprint line.
Vendor.img is specific to each OTA and contains proprietary binaries for the phone. The phone will fail to boot if you mismatch the vendor.img with a different OS base. For instance, a 6.0 Marshmallow vendor.img will not allow your phone to boot on 7.0 Nougat.
Click to expand...
Click to collapse
Hope this clears things up for you!
Edit: Also, certain rom teams keep an up to date listing of vendor.img available on their websites. Usually this is detailed in the rom thread OP. Find a reliable thread and bookmark their vendor.img downloads, if not download the factory image each month and extract the img.

SlimSnoopOS said:
Hey there,
Regarding your TWRP 3.0.2-0/MultiRom 3.0.2-0 and TWRP 3.0.3 issues, check out post #1152 in the official TWRP 6P thread. If there is an update to MR to support Nougat encryption, you'll just have to follow the MR thread or Github for updates.
Here's a brief explainer from my guide in the Nexus 5X forums about Vendor.img:
Hope this clears things up for you!
Edit: Also, certain rom teams keep an up to date listing of vendor.img available on their websites. Usually this is detailed in the rom thread OP. Find a reliable thread and bookmark their vendor.img downloads, if not download the factory image each month and extract the img.
Click to expand...
Click to collapse
Thanks so much for the swift reply! I'll check these links out right away. I'm sure they will fill in the gaps for me.
Best,
KT

KilgoreTrout71 said:
Hi, All . . .
I believe it would be appropriate to label me as an intermediate-to-advanced newbie. That is, I'm not clueless, but there are lots of blind spots in my knowledge.
I just bought a 6P and while I've been waiting for my SIM card to arrive, I've gone ahead and rooted, installed TWRP 3.0.3-0, and made a few customizations here and there. One thing I don't understand is the significance of the vendor image now. I'm coming from a 6 where that wasn't an issue. Also, in the rooting instructions it indicates that one should "find the correct vendor image," without really indicating how one can go about learning which one is "right." In the end, I took the latest one I could find, because my phone did an OTA update and I simply reasoned that I should match latest with latest.
In any case, I want to install MultiROM and I keep running into this problem:
The MultiROM version of TWRP doesn't load. It hangs on the splash screen. The version it uses is 3.0.2-0, so I suspected it was an issue with that. I flashed the TWRP-only recovery version 3.0.2-0 after having no luck, and it wouldn't load beyond the splash screen, either. Finally, I re-flashed the stock system recovery and tried flashing both the 3.0.2-0 TWRP-only recovery and the MultiROM-integrated version, both without success.
Is there something about the move from 3.0.2-0 to 3.0.3-0 that makes a rollback impossible. Is it even necessary?
Re-flashing 3.0.3-0 solved the problem of basic functionality. TWRP comes right up after I do that. But I can't get the MultiROM recovery or the 3.0.2-0 TWRP recovery to work no matter what I try.
My phone says that the vendor version is N4F26J and my "build number" is N6F26Q, and I'm running PureNexus 7.1.1. Those two numbers appear like a mismatch to me, but everything I could find indicated that the vendor version I have, being the latest, is the right one.
What am I missing? Can someone with more experience solve this puzzle, or at least lead me in a direction where I know which questions to ask on my own and can get things to start making sense again?
I appreciate your help! Thanks!
Click to expand...
Click to collapse
Your vendor image and build number do sound like they are mismatched. If you can't find the vendor image you need on XDA you can find the matching build on the Google site, download the whole factory image and unzip it and get the vendor image that way.
I believe TWRP 3.0.2-0 was buggy. I'm not familiar with Multi rom and I don't know why they would use that build. You should be using 3.0.2-3 or 3.0.3-0.
I personally wouldn't install a custom ROM before activating the phone. I know a couple people have reported in the past that they were unable to activate their phone on a custom ROM. Hopefully you won't have that issue.

jhs39 said:
I believe TWRP 3.0.2-0 was buggy. I'm not familiar with Multi rom and I don't know why they would use that build. You should be using 3.0.2-3 or 3.0.3-0..
Click to expand...
Click to collapse
MultiRom support for this device was released when Marshmallow was out. So MR33 is based on the Marshmallow branch and ships with 3.0.2. The developer just isn't ready to release support for Nougat 7.0 and couple that with the issues of TWRP 3.0.2-x. He's actively pushing commits to support Nougat.
Sent from my Nexus 5X using Tapatalk

jhs39 said:
Your vendor image and build number do sound like they are mismatched. If you can't find the vendor image you need on XDA you can find the matching build on the Google site, download the whole factory image and unzip it and get the vendor image that way.
I believe TWRP 3.0.2-0 was buggy. I'm not familiar with Multi rom and I don't know why they would use that build. You should be using 3.0.2-3 or 3.0.3-0.
I personally wouldn't install a custom ROM before activating the phone. I know a couple people have reported in the past that they were unable to activate their phone on a custom ROM. Hopefully you won't have that issue.
Click to expand...
Click to collapse
Thanks for the input! I actually just got my card and some of the activation seems complete. (I got my voice mails and so on, but no data connection yet.) I didn't have a problem with the Nexus 6 on PureNexus, but we'll have to see how this one plays out. I'm not able to call over WiFi yet.

KilgoreTrout71 said:
Thanks for the input! I actually just got my card and some of the activation seems complete. (I got my voice mails and so on, but no data connection yet.) I didn't have a problem with the Nexus 6 on PureNexus, but we'll have to see how this one plays out. I'm not able to call over WiFi yet.
Click to expand...
Click to collapse
It might just take a while for the service to go through. Good luck.

massive problems with ERROR:7

Hello,
I'm having big problems flashing any ROM on my Oneplus 5 atm.
At the beginning of this month, I wanted to unroot my rooted Android 8.0 or 8.1 (One of them, it was OxygenOS, but not the newest version)+ Xposed Oneplus 5.
I got a couple of errors, most of the time error 7.
After hours, old and new recoverys (TWRP) from blu_spark, codeworkx and some xda user recoverys and diffrent OxygenOS versions i finally managed it to install a Oxygen version with Android 7.1.1 on the phone. The Problem was: I always got errors (Installation failed) when I wanted to intall Software Updates no matter if I tryed it by myself or with the official system update in android.
So and today the official beta build of OxygenOS for 9.0 released and I was so stupid and thought I can make this an easy one.
Now I'm sitting here since 9:30am and try to flash Android 9, or any Android except 7.1.1 (only Oxygen Versions). Most of the Time i'm getting ERROR:7, it doesnt matter with which Recovery or Build.
When I got this problem at the first Time, my Phone was shown as "" (The error was something like: This Package is for a "Oneplus 5" this is a "").
When I get this scentence now (not every Recovery is showing it) it says my Phone is a "OnePlus5T", but i have a Oneplus 5.
Also (maybe partly) important things are:
- I tryed to edit the updater-script and delete the assets lines but there were no asset lines. Tryed it anyways and it didnt work. (and i really dont want to try this again)
I tryed to google this error for hours and many people meant that this is the way to go but I dont belive it. Isn't there any way to rename my phone, if yes: what do I have to do? I have TWRP and access to the command prompt aswell. If anyone can successfully create the 9.0 beta without the assets I would be happy but i dont think that is the solution for my problem, just a workaround.
- I think the problem is just something about my devices name. The strange part is that it accepted 7.1.1. And this was 100% a Oneplus 5 ROM.
- 7.1.1 isnt the way to go for me anymore. I dont like android 7 and it has so old security patches..
- Fingerprint sensor and screen got replaced
thank you for reading this and maybe helping me. I dont have the best language skills, if you need more Information about my Phone, please ask
EDIT1: As I said, 7.1.1 is still successfull, i tryed it a couple of mins ago. no error 7 or sth

maybe you can try revert to fully stock setup{without TWRP) and update to pie?

I have problem with error 7 when i tried to flash latest open beta (pie). I didn't find any solution.... :crying:

petryrety said:
I have problem with error 7 when i tried to flash latest open beta (pie). I didn't find any solution.... :crying:
Click to expand...
Click to collapse
Make sure the download isn't corrupt or if you extract the compatibility.zip use a recommended tool.

I had this problem couple of months ago. I solved it by flashing an old os version then flashing stock recovery(I don't remember if I locked the bootloader). boot in to the phone and download and update through ota( I did 3 updates this way). Then install twrp and root. Now I can flash any oos update without error 7.

May work
This is a post I wrote for another thread. I have found that this method fixes the error 7 issue, and allows you to update all the way to Pie without issues. When updating to Pie, use 7-Zip, not winrar or any other non-recommended programs to remove compatibility.zip from the firmware archive before flashing. I found that winrar causes treble errors or error 7.
https://forum.xda-developers.com/showpost.php?p=78523940&postcount=13

iwantademo123 said:
This is a post I wrote for another thread. I have found that this method fixes the error 7 issue, and allows you to update all the way to Pie without issues. When updating to Pie, use 7-Zip, not winrar or any other non-recommended programs to remove compatibility.zip from the firmware archive before flashing. I found that winrar causes treble errors or error 7.
https://forum.xda-developers.com/showpost.php?p=78523940&postcount=13
Click to expand...
Click to collapse
Yeah, that's what I wrote here https://forum.xda-developers.com/oneplus-5/help/massive-problems-error7-t3878372/post78503983 and in flashing instructions for open beta and stable builds in their first posts.

strongst said:
Yeah, that's what I wrote here https://forum.xda-developers.com/oneplus-5/help/massive-problems-error7-t3878372/post78503983 and in flashing instructions for open beta and stable builds in their first posts.
Click to expand...
Click to collapse
That's good, It's good advice. I am just stressing to everyone in this thread, how important it is to follow that and use a recommended tool to remove compatibility.zip because removing compatibility.zip sounds very trivial thing, but it's actually really important to use a tool like 7-Zip that doesn't break the firmware in the process.
Also, the link to my other post ( https://forum.xda-developers.com/showpost.php?p=78523940&postcount=13 ) should be detailed and comprehensive enough to help people with error 7 in other scenarios or that are trying to update to oreo or other stock firmwares too. This method restores the phone back to factory condition, including all the partitioning. Updating with a locked bootloader can fix a lot of update errors. I've found that after 5.1.5 it is safe to unlock the bootloader and take updates. But as you mentioned, for an unlocked bootloader, compatibility.zip needs to be removed from the firmware archive, and a tool such as 7-Zip must be used to do so as other archive managers break the update entirely (with error 7).
Good luck everyone trying to update, hope our advice helps :good:

So I flashed OOS 5.0.1 then went back to stock recovery. I then locked my bootloader. After which I booted into OxygenOS and updated it all the way to pie(took 3 OTAs). Now I've got a locked bootloader and pie but I'm wondering if the process to unlock the bootloader is the same or different now that there is a vendor drive?

TurtleSandals said:
So I flashed OOS 5.0.1 then went back to stock recovery. I then locked my bootloader. After which I booted into OxygenOS and updated it all the way to pie(took 3 OTAs). Now I've got a locked bootloader and pie but I'm wondering if the process to unlock the bootloader is the same or different now that there is a vendor drive?
Click to expand...
Click to collapse
The unlocking process of the bootloader is the same!

I am having the exact same problem, tried everything from above. Can get anything more recent than 7.1.1 on my oneplus 5. evrything else is error 7. Any update

mathgerm said:
I am having the exact same problem, tried everything from above. Can get anything more recent than 7.1.1 on my oneplus 5. evrything else is error 7. Any update
Click to expand...
Click to collapse
Please see here https://forum.xda-developers.com/on...xygenos-4-5-2-7-1-1-ota-t3627003/post79938097

Can't Install Custom Roms

Hello,
Firstly, my device is the Asus Zenfone Max Pro M1 6GB Ram variant.
I was using the Pixel Experience rom as my daily ROM (I don't remember which build), it worked fabulously. But I hadn't updated it in a few months. So after enough procrastination I decided to update. I tried the regular software update method where you go to settings and check for updates, when it booted to TWRP recovery, it failed with an error. I thought it was because the update was the latest one and I was on an older build. So I tried doing a clean install by booting into recovery and wiping everything except internal storage. But the same error popped up again
I don't remember the exact error but it was an Error 7 and said something about the 'firmware version' required is 15.2016.1901.339 or newer. At first I didn't really get it and I kept trying again.
But after spending some hours it started making some sense and so I tried to install the required firmware. Even after doing so, the error kept showing up.
I thought it might be a ROM specific error. So I also tried Resurrection Remix (Pie version) but it yielded the same Error 7. This is the phone I use on a daily basis so I had to get it working somehow. So I flashed the stock ROM, the one that comes out the box. I flashed it using the flashall_AFT.cmd, I'm on the stock ROM now and it's obviously nothing like a custom ROM.
I also tried editing the updater script from the ROMs and deleting the part that was about the error (the first few lines). That didn't work either. The Error 7 was gone but another Error 6 popped up which said it failed to install.
I'd love to go back to using a custom ROM. It bugs me because I couldn't find any way to fix the error.
I'd greatly appreciate it if you can guide me step-by-step on how to install the custom ROM from where I am now i.e from the stock and fix the error.
I hope the above information suffices.
Thanks.

Azyaan124 said:
Hello,
Firstly, my device is the Asus Zenfone Max Pro M1 6GB Ram variant.
I was using the Pixel Experience rom as my daily ROM (I don't remember which build), it worked fabulously. But I hadn't updated it in a few months. So after enough procrastination I decided to update. I tried the regular software update method where you go to settings and check for updates, when it booted to TWRP recovery, it failed with an error. I thought it was because the update was the latest one and I was on an older build. So I tried doing a clean install by booting into recovery and wiping everything except internal storage. But the same error popped up again
I don't remember the exact error but it was an Error 7 and said something about the 'firmware version' required is 15.2016.1901.339 or newer. At first I didn't really get it and I kept trying again.
But after spending some hours it started making some sense and so I tried to install the required firmware. Even after doing so, the error kept showing up.
I thought it might be a ROM specific error. So I also tried Resurrection Remix (Pie version) but it yielded the same Error 7. This is the phone I use on a daily basis so I had to get it working somehow. So I flashed the stock ROM, the one that comes out the box. I flashed it using the flashall_AFT.cmd, I'm on the stock ROM now and it's obviously nothing like a custom ROM.
I also tried editing the updater script from the ROMs and deleting the part that was about the error (the first few lines). That didn't work either. The Error 7 was gone but another Error 6 popped up which said it failed to install.
I'd love to go back to using a custom ROM. It bugs me because I couldn't find any way to fix the error.
I'd greatly appreciate it if you can guide me step-by-step on how to install the custom ROM from where I am now i.e from the stock and fix the error.
I hope the above information suffices.
Thanks.
Click to expand...
Click to collapse
Most pie roms are base on the latest stock pie firmware, you probably need to flash that. Plus Ur twrp version is probably not the newest, all the links are available in the telegram group, and I'm not going to put them here out of respect for the devs. But .339 firmware is the Oreo firmware, I think the one u need to flash is the .050 firmware.
The telegram groups have them all and a little searching can give you all the links you need.

Azyaan124 said:
Hello,
Firstly, my device is the Asus Zenfone Max Pro M1 6GB Ram variant.
I was using the Pixel Experience rom as my daily ROM (I don't remember which build), it worked fabulously. But I hadn't updated it in a few months. So after enough procrastination I decided to update. I tried the regular software update method where you go to settings and check for updates, when it booted to TWRP recovery, it failed with an error. I thought it was because the update was the latest one and I was on an older build. So I tried doing a clean install by booting into recovery and wiping everything except internal storage. But the same error popped up again
I don't remember the exact error but it was an Error 7 and said something about the 'firmware version' required is 15.2016.1901.339 or newer. At first I didn't really get it and I kept trying again.
But after spending some hours it started making some sense and so I tried to install the required firmware. Even after doing so, the error kept showing up.
I thought it might be a ROM specific error. So I also tried Resurrection Remix (Pie version) but it yielded the same Error 7. This is the phone I use on a daily basis so I had to get it working somehow. So I flashed the stock ROM, the one that comes out the box. I flashed it using the flashall_AFT.cmd, I'm on the stock ROM now and it's obviously nothing like a custom ROM.
I also tried editing the updater script from the ROMs and deleting the part that was about the error (the first few lines). That didn't work either. The Error 7 was gone but another Error 6 popped up which said it failed to install.
I'd love to go back to using a custom ROM. It bugs me because I couldn't find any way to fix the error.
I'd greatly appreciate it if you can guide me step-by-step on how to install the custom ROM from where I am now i.e from the stock and fix the error.
I hope the above information suffices.
Thanks.
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The latest Pixel Experience works great!
So you are on the Stock Firmware then.
1) Unlock the bootloader by Unofficial method (It will help when you want to relock it in future.)
2) Flash the latest TWRP Recovery.
3) Download whatever ROM you want to install and read all the requirements first! The error 7 you mentioned was the Firmware issue and could have been fixed by flashing the Firmware first and then the ROM.
GApps are not required for Pixel Experience as it comes with all the necessary Google Apps.