yashsingh1/xdaforums huggingface dataset:
[OnePlus 8 / 8 Pro & 8T Cross Device Development] petes:
No, you didn't follow the instructions in the first post. If you just flash the rom, you'll brick your phone. You have to flash the OOS12 firmware first. If you're on the latest 6.5, you've got the right OOS11 firmware to start from, so you can skip step 1 of the instructions. Other than that, follow the instructions upto step 9. It's upto you if you try and skip the format data in step 9 - probably will cause problems, but you can probably boot to recovery and format data later. Just flashing the 6.6 rom on its own over 6.5 or any other OOS11 firmware based rom will NEVER WORK and WILL BRICK YOUR PHONE.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] tuckandroll:
Can confirm that I forgot to wipe coming from 6.5 and no issues if you update fw first.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] superwahwah:
hello, I am on version 6.0 so I try to do clean flash following first thread.

When I want to start cmd the lines in order to update the FW, I have: unknown option -- slot=all

Please advise
[OnePlus 8 / 8 Pro & 8T Cross Device Development] petes:
You're using an out of date version of fastboot
[OnePlus 8 / 8 Pro & 8T Cross Device Development] superwahwah:
thanks for the reply but I would need some help here because I spent 1h trying understand what is wrong

So for step 6. Update FW to EU C20 by downloading the FW ZIP that matches your device + LPDDR version and running the cmds located in the how-to.txt (do not reboot).

Could you please elaborate what I have to do because I miss something.

I am in fastbootD, fastboot devices is connected on the cmd, what should I do to update the FW please
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Did u check the HOW TO text file inside the zip file. U need to unzip the c20 file. Then u will find how to text file with commands. Just copy paste the commands in command prompt
[OnePlus 8 / 8 Pro & 8T Cross Device Development] superwahwah:
yes, I unzip and check the how to but I cannot find it (

C:\Program Files (x86)\ADB and Fastboot++>fastboot flash --slot=all abl abl.img

fastboot: error: cannot load 'abl.img': No such file or directory)

I supposed I need to start the cmd from the file but I am not able to do that

I tried :

C:\Users\Lud\Downloads\FW_EU_C20_kebab_op8t_LPDDR4>fastboot flash --slot=all abl abl.img

fastboot: unknown option -- slot=all

I am not on the proper fastboot version as @petes said but I don't understand how to solve that too.

Sorry guys, I did not touch the phone since 6.0 version, feel shame, forgot everything
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Get the latest version of adb.

U need to run the commands from cmd from the folder that contains the images files (the unzupped c20 folder)

Also u need to be in fastbootD not fastboot (step 3 in OP)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] _Glcr:
So Just put all the extracted files where your fastboot.exe is. It has to be all in the same folder. if not, Fastboot can't find the files. The first error states this kind of a problem.

Second error: I think you tried to put the Fastboot command in the folder where extracted files are but not where Fastboot is located.

Furthermore: if your device is not found while using fastbootd install latest usb Google driver. https://developer.android.com/studio/run/win-usb
[OnePlus 8 / 8 Pro & 8T Cross Device Development] superwahwah:
Hello, I installed the last version with success thanks to you. Indeed, I figured out how to update adb
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
OP says "Evolution X 6.6 [07/27/2022]"

But didnt find any new update in download link
[OnePlus 8 / 8 Pro & 8T Cross Device Development] BubbletopTag:
Does anyone know a good kernel for undervolting the CPU on Evolution X 6.6?

Alot of what I see (if anything) is for Oxygen OS and flashing it anyways result in the phone not booting. (Thankfully fixed by dirty flashing)

I want to achieve the best battery battery life possible with minimal performance loss. Anyone know I good kernel for this?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Hitman478™:
So no fast nor warp charge?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] AnierinB:
We fixed warp/vooc charging yesterday. Included in the updates I released a few minutes ago.

Update:

Welp, looks like 8/8Pro still have some issues. 8T/9R seem to be working though
[OnePlus 8 / 8 Pro & 8T Cross Device Development] makkonen:
Anyone have this working with Google Fi? Tried a Fi SIM on 2 devices (one on 6.5, one on 6.6) and on both it successfully activated but could not use mobile data no matter what I tried.

(stock OOS doesn't work right on Fi with this phone either, but with the stock ROM data works fine but incoming calls don't ring, so I don't think the issues are related.)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] szmataman:
I had the same problem before, you need to do the correct FW update, do everything as the instruction on the first page says (I installed FW several times, although I had an error in ADB which probably caused these errors with the network> MSM tool> OOS> EVO CLEAN INSTALL)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Root Query :

Do i need to patch the boot.img for every update ? (for ADB Sideload)
[OnePlus 8 / 8 Pro & 8T Cross Device Development] NotAbdShahid:
My USB C headphones don't seem to work since updating to 6.6. I encountered this in previous builds too but there was this usb on the go toggle that would make it work but I can't find that in the new builds. Any way to fix this?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] barb44:
updated to latest, now phone stuck on first screen
[OnePlus 8 / 8 Pro & 8T Cross Device Development] capt.ron:
Did you initially update to 6.6 by following the updated install instructions in OP?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] barb44:
Oops. I just did an ota update.....

I guess that's it then, phone needs to be wiped and start afresh ?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] barb44:
I can boot into fastboot , but adb is not showing the device....
[OnePlus 8 / 8 Pro & 8T Cross Device Development] capt.ron:
I feel your pain 😊 Might want to go back to msm tool and load latest oos 11. Maybe others could chime in here for other suggestions...
[OnePlus 8 / 8 Pro & 8T Cross Device Development] barb44:
Oh dear.....could you please list the steps to be taken after getting the latest os 11 on the phone using msm? I would be most grateful
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Why am i not able to root?

Patched boot.img and flashed

1. Tried slot a (active slot) but magisk didn't detect

2. Tried both slots but still not detected

Tried re patching the boot.img (confirmed same CRC)

I usually do the same steps and get magisk to work. This time its not working. Any suggestions?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Aft

After you used MSM, just follow the steps in OP
[OnePlus 8 / 8 Pro & 8T Cross Device Development] capt.ron:
As @firoz3321 says just follow the written instructions. Also, FYI, there is a text file in the Fw zip that you'll need to open and follow carefully.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Screencast or chromecasting is not working. Is this a known issue?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] capt.ron:
The only thing that's coming to mind is to start root process over (ie payload dumper onward) and go slow and make sure of your steps. That's all I can think of. Keep us posted.....
[OnePlus 8 / 8 Pro & 8T Cross Device Development] _Glcr:
I patched (through magisk app) and flashed boot.img to get root.

Now you have to install magisk via magisk app to inactive slot every time you doing an ota.

Open magisk app -> install magisk -> to inactive slot (after ota)

I flashed vbmeta too.

Installation

The Magic Mask for Android

topjohnwu.github.io
[OnePlus 8 / 8 Pro & 8T Cross Device Development] _Glcr:
i did this too. This helped me: https://xdaforums.com/t/rom-12-1_r11-official-evolution-x-6-6-07-27-2022.4276623/post-87186665

i turned phone off with vol + - and power button

i got into fastboot mode with vol + - and power button

i booted twice to recovery so i got into fastbootd and switched to recovery (fastboot reboot recovery x2)

then i was able to switch active slot
[OnePlus 8 / 8 Pro & 8T Cross Device Development] barb44:
thanks for this but rebooting into recovery via fastboot didn't do anything.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] barb44:
I have wiped the phone using msm. Next time I will be more careful.......
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Hi Can you please help on the vbmeta image part. i never used this before .

Do i need to PATCH this file or just flash the default image ?

Update : issue solved

I use "hide magisk app" and that app was named SM.

I installed the SM app amd installed Magisk vut wasn't working.

Now i noticed SM was still listed in Titanium backup. Removed it using TB and re installed the magisk app and viola, its all good now.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] weeman45:
Latest version sadly still has bugged chargeing. Somehow it is even worse now on my OP8 Pro as it only charges up to about 64% in 10 hours
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Deleted
[OnePlus 8 / 8 Pro & 8T Cross Device Development] QuiDC96:
I can't use ARCore.

It's told me that the device is not supported.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Shah Taj:
I'm on oos 11.09 ( can't update because it's a t-mobile oneplus 8).i don't know anything about the lpddr stuf you said.i just flashed recovery and sideloaded the latest evo x.it seems to be working well and fine without any problems.i didn't follow lpddr instructions.does that mean it will affect me in any case in the future?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] _Glcr:
devs already know this and working on it i suppose
[OnePlus 8 / 8 Pro & 8T Cross Device Development] makkonen:
With Google Fi specifically? I used a TMobile SIM on both of them with no issues (mobile data worked fine immediately), it was just Fi that failed.

Also, the firmware update doesn't apply to the version running Evo X 6.5, which further leads me to believe it's not a firmware issue.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Techdope:
Please make one for Motorola edge 30, it doesn't even have root file nor custom rom it's just 2months old but no one made
[OnePlus 8 / 8 Pro & 8T Cross Device Development] szmataman:
Didn't use Google Fi I just Had problem with both SIM cards/slots, phone detected sim numbers but cannot call or send messages from standard system apps. Everything worked perfectly on 6.5 EVO, after upgrading to 6.6 with some FW installation issues the phone network was completely bricked just because I didn't use proper command before update FW ("adb shell setenforce 0" which probably cause the error during the installation, that was clearly my bad and now everything work perfect on 6.6.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Storm_fad:
When can you fix for Oneplus 8 pro?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] AnierinB:
Don't you think I'm already working on it?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] jpslvie:
Thank you for all the hard work. Love this rom.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] hanisir3:
I'm on Evolution X build: evolution_instantnoodlep-ota-sq3a. 220705.003.a1-07270357 and I noticed that the lockscreen and AOD have some elements overlapping

Video
[OnePlus 8 / 8 Pro & 8T Cross Device Development] SlimShady3:
Hi, just had a doubt, I have Indian variant of OP8 Pro (IN2021). After flashing the EU firmware as mentioned in the thread, will I be able to switch back to Indian firmware in the future by using MSM, or will that cause any issue?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] AnierinB:
Yes, you will be able to switch back without any issues.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Klusio19:
<Moderator Edit>: Merged two posts.

Is there any way to get fully working stock OOS Camera like in other custom ROMs? (I'm rooted)

EDIT: Ok, I see from previous posts, that it's currently WIP. Fingers crossed. This ROM is amazing! Well done to all developers, and thank you, for your amazing job! <3

I'm curious, why the stock OOS cam is temporarly removed? Is it because some changes in firmware? I guess, that complicates things a lot?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] makkonen:
While you're waiting, you can install the gcam mod -- it at least gives you a bunch more options than the barebones aosp style camera that's bundled with the latest build.

The version at https://www.celsoazevedo.com/files/android/p/google-camera-oneplus-8-series/ seems to work well, but you absolutely need to load the presets from the xml. Don't skip this step or everything will be a dark mess.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Klusio19:
Yeah, I already have GCam installed while ago, but thank you for suggestion
[OnePlus 8 / 8 Pro & 8T Cross Device Development] ewong3:
bricked op9r.... ?

did a evo6.6 flash per OP just now, and noting the instructions:

===========

First Time Install / Clean Flash

⚠️ IT'S EXTREMELY IMPORTANT THAT YOU FLASH THE CORRECT LPDDR FW FOR YOUR DEVICE...... Else you will end up in a non-recoverable hardbrick, and I will not take responsibility for anyone who does ⚠️

1. Be on latest OOS11 with an unlocked bootloader.

2. adb shell getprop ro.boot.ddr_type (0=LPDDR4 & 1=LPDDR5 . Take note of this!).

===========

was extra careful with the LPDDR5 checking (getprop returned 1), then followed rest of the instructions as per normal, only to get bricked device on rebooting to system after flashing the 0727 build.

wondered if any of these might be the reason:

1) coming directly from oos 11.2.8.8 rather than an earlier evo version (prob. not)

2) not having done the 'copy partition' act as LOS instructions insisted on (which sadly was not contained in the OP steps)

If the latter, then perhaps dev can save others from same fate by inserting this as a step in OP?

As of now MSMdownloadtool can't see response from device - but if anyone has brighter ideas would appreciate greatly!
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Klusio19:
But did you enter EDL before heading to MSM tools?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] ewong3:
sadly, didn't have chance after reboot to system (which did not happen as device stayed dead), and vol+ & vol- & pwr does not bring it to edl either... so far (although 4 hours on phone is warm through plugged in)

any other bright ideas?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] GraveDigger176:
Try vol + and power to get in bootloader, when in bootloader with vol- to power off hit the power button to power off your phone 👍🏿 when is off then only hit vol + vol - together and plug the cable in then you in edl mode when not connected in edl then hit the enrum button in MSM tool
[OnePlus 8 / 8 Pro & 8T Cross Device Development] ewong3:
tried a few times, but absolutely no response for all steps (vol+ and power does not wake device up to begin with)... but thanks for suggesting
[OnePlus 8 / 8 Pro & 8T Cross Device Development] GraveDigger176:
Sorry I mean first push vol - then the power button when vibrates let the power button gone then you should land in the bootloader screen
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Klusio19:
When the device is powered off, just hold power up and power down buttons at the same time and while still keeping them pressed plug in phone to your PC and then you should me able to connect to MSM tools. Also make sure you have proper Qualcomm drivers available, because without them, your device won't be recognized (or it will be in the device manager but with some different name) and you still can't use MSM tools. There are many threads about getting into EDL, and getting proper Qualcomm drivers. Make sure to check them out, because getting into EDL can be very tricky.

PS. And btw there is no visible mark for getting into EDL mode that way, there is no vibration, no image, so don't worry if you don't see any of this.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] 5i1v3rStorm:
Can we speculate on what happened to ewong3?

I have not been brave enough to flash 6.6, yet and I'm waiting for the OOS cam and fast charging. So while I wait, I might as well collect any knowledge about the upgrade process I can get.

He speculated on not having done the copy_partitions script but as far as I read the thread this is NOT mandatory. One would only need to do this if one had upgraded to stock OOS and wants to flash Evo 6.6 to the other slot, right?

I downloaded the FW.zip and had a look at the readme.txt. these fastboot commands seem to flash the firmware to both slots, so one should be fine with "only" that, and would not have to do the copy_partitions, am I right?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
I noticed that the screen was flickering a lot and was very much distracting while i was using for navigation in car.

And yes the peek refresh from developer settings is on.

I had to restart the device to be able to get stable display.

Also one issue that bothers me the most is the fingerprint, looks like the timeout and retries are high? Within a few milli seconds i get a lot of error vibrations and usually end up entering the pin code to enter. But while driving it was frustrating to unlock the mobile.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] d3viou5:
***Deleted for stupidity.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] ewong3:
thank you for the tips offered - I left device at work so may not find out till monday - having done dozens of OP devices and often multiple times for wider circle since op3, I've had some experience with MWM but will anyway give it one more go early next week...

5i1v3rStorm: everything looke normal throughout the OP steps until i did the system reboot right at the end...so most peculiar it should brick the phone... if can't resuscitate may have to source another one 2nd hand - but curious to hear if anyone on OP9R succeeding with fresh install of 6.6!

​
[OnePlus 8 / 8 Pro & 8T Cross Device Development] firoz3321:
Has anyone noticed the screen brightness goes down randomly. The max brightness seem to be limited, restarting solves.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] alf_and_co:
its hdr issue. hdr Netflix or hdr google photos cause this. we can wait only to fix it
[OnePlus 8 / 8 Pro & 8T Cross Device Development] _Glcr:
I'd like to add following bug on 8Pro, latest build:

When the phone is turned off and then charging, it freezes in the charging screen and will not start. Vol + - and the power button will turn it off completely. After that, it can be started again as usual.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Melcore127:
hey i need some help i tried updating through adb so to do that i flashed the recovery image and tried to load into it but nothing i keep loading into the bootloader and cant do anything else can anyone help me . I had updated once before this and had flashed all the FW images on my phone and did it successfully. I suspect also its a soft brick so could anyone telll me how i could go as to fixing this as im kinda uninformed in that. I would like to stay in evolution x. I try entering revcovery or even start it just boots back to fastboot. is there anyhting i could do
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Flash1337:
1) Dont assume anything is done.

2) Start over, so first get that recovery working, try an do "fastboot flash recovery_a recovery.img / fastboot flash recovery_b recovery.img

3) boot to recovery

4) update fw (again) to c20

5) adb sideload evox

6) format data and reboot

Assuming earlier flashes already is done, without recovery working properly, is a mistake thats not worth the risk.

Always go back to first step of a flashing guide, when you run into trouble. :)

If you did update and recovery isent working, you could try "fastboot boot recovery.img" and reflash it after.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Melcore127:
i did the flashing still couldnt get into recovery , i then proceeded to do fastboot boot recovery img commade still couldnt it kept going to the bootloader here is an error that comes when i run the command . I just cant enter into recovery mode.

edit : so i restarted the bootloader and tried the command again now it succesfull boot but is stuck on the oneplus fastboot mode logo
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Flash1337:
I have no idea, whats causing the problem. In your case i would simply use msm tools, and start all over, just to avoid any further issues or even end up with a hard brick.

Start by updating adb / fastboot drivers > msm tools to get back on track > Follow guide in OP.

Their might be an easier way, might even be a bad download of recovery, i dunno, i myself don't take much chances when i run into problems, since i need my phone for daily use. So, thats my advise. Without a properly working recovery thats just a red flag.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Melcore127:
thanks im gonna do msm tools and go back to stock and build up from there so thanks for helping me
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Klusio19:
Back in the day I had similar situation with "fastboot boot xxx.img" and then being stuck on fastboot mode logo always ending on Qualcomm crashdump mode where I could only use MSM Tools ( couldn't even boot to fastboot). I believe that was related to wrong/faulty recovery.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Melcore127:
Well thanks for the advice i actually did the reset and everythign works spick and span thanks it was generally easy for something i thought was a terrible thing to be put into. I even put it back to evo x and everything works fine. And i also realise what i mustve have done wrong. I complicated things but flashing the migration recovery img. Instead all i had to do is just go to recovery and just apply the adb update. Clumsy me. smh
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Flash1337:
Happy you worked it out. Its always better to use msm tools, and start from scratch, rather than fumble around in blindness, just to end up with a brick.

Sometimes its a faulty file and sometimes there been a wrong flash etc, the hole will only get deeper, been there and never taking that big of a chance again. So always get that recovery working, that way you can always get back :)

Flashing stock oos12, is the biggest bug these days, so evo x is a life safer to oneplus phones imao :D

Im never going too look back on oos stock. Not even when oos13 comes, dont trust them! Put my trust in @AnierinB for daily roms from now on.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Flash1337:
@AnierinB one question. I know its a personal choice, when it comes to i/o, but why are most newer phones pre-selected with "NooP" rather than "Cfq" ?

I tried both, but can't really find the difference, so which one would be best, for less multitasking & more gaming / movies ?

Don't really care for battery, since i always have a charger nearby.

Just wondering, if theres any "best", since i mostly stumble on "bfq" when i try to find an answer.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] BrickL0rd:
will later firmware patches delivered through evo ota patches? or can those be flashed by myself?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Mine1003:
I'm trying to install this evening, but i can't find the how-to.txt... Can somebody help?

Maybe also somebody, who is online this evening and who i can ask for help if something goes wrong?
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Storm_fad:
Hi.
[OnePlus 8 / 8 Pro & 8T Cross Device Development] Flash1337:
Unzip the fw file in OP guide. There youll find how to txt.