yashsingh1/xdaforums huggingface dataset:
[OnePlus 9 Pro] break.cold:
Firstly, I would advice you to do clean installation after long list of changes. And also you might not face face any problems or force closes. Secondly, magisk v.23 is old use 24.1, Install it through adb side magisk.zip.

Use magisk 24.1 attached. Make magisk zip file use as adb sideload in recovery provided by developer., it install magisk without having go through payload.
[OnePlus 9 Pro] Behzad_ha:
Thanks, After Clean Install it works properly.
[OnePlus 9 Pro] Behzad_ha:
Is there any solution for shutters while scrolling? I have lag in some app such as spotify.
[OnePlus 9 Pro] saminaminahehe:
Update:

Almost all the issues I encountered on the first build is non existent or gone. I can't guarantee some since this is only the first day of trying the latest build so will keep updating every now and then.

Once again, Thank you devs for giving us this beautiful rom.
[OnePlus 9 Pro] tswb:
otg usb not working on the new rom
[OnePlus 9 Pro] alb94:
The same here!
[OnePlus 9 Pro] Behzad_ha:
I have problem with IMEI.

In my country we have to register out phone's IMEI.

After install derpfrst, my phone shows wrong IMEI(sim 1 and sim2 are same), and I might face problem with simcard service if it was wrong.

Is there any way that i can change the IMEI and set it to correct IMEI.
[OnePlus 9 Pro] jafro77:
I confirm that this no longer is an issue in 2022-02-20.
[OnePlus 9 Pro] TeaStay:
Just download Doodle: live wallpapers from play store, you can see that :D
[OnePlus 9 Pro] massaquah:
The instructions say "Make sure you are on latest OOS 11 (11.2.10.10)".

Is this still necessary if you are already on an A12, AOSP / Pixel based rom like "Evolution X"?

(https://xdaforums.com/t/rom-12-official-alpha-evolutionx-6-0-snow-25-01-2022.4388391/)

Do I really have to downgrade first (MSM tool?)
[OnePlus 9 Pro] Shooter7889:
Only have to msm back if on OS12 or COS12.. not if on custom 12s.
[OnePlus 9 Pro] Mar-cel:
you can downgrade from a12 with the downgrade zip back to oos 11.8.8 and the upgrade to 11.2.10.10
[OnePlus 9 Pro] massaquah:
So basically, @Shooter7889 says I don't have to downgrade and @Mar-cel says, I have to... :)
[OnePlus 9 Pro] break.cold:
You have to downgrade to OOS A11. Because Oneplus hasn't release source code for A12 and plus no custom rom have merge their source code to A12 since it has not release yet, while you can blame Oneplus for merging with OPPO. In addition to that, Oneplus have change alot in ColourOS 12 since merge with OPPO so therefore, it's becoming difficult for developers to compile with A12 of ColorOS
[OnePlus 9 Pro] Shooter7889:
The 📸 port guy... I went from EvoX to Derp. Both on A12.. And all devs who built these awesome A12 roms state only downgrading when coming from OS12. U will be fine. Just flash whatever recovery needed, wipe and update w/adb sideload in recovery
[OnePlus 9 Pro] v_krishna@xda:
Hi, is there any way to get rid of "wireless powershare enabled notification" on oneplus 9?
[OnePlus 9 Pro] ScotDroid:
My banking app doesn't work on latest update for op9 lemonade worked fine in previous build any fix for this? thanks
[OnePlus 9 Pro] Zhono:
So just as I was about to flash back to stock to get away from the issues I was having on this rom, the update got posted. Dirty flashed the update (via recovery adb sideload along with Magisk) maybe an hour after it went up, and haven't yet had a single crash since, or the issue where the touchscreen and hardware buttons would become completely unresponsive and require a hard reboot. So hopefully I won't have to go back to stock after all. Thanks Devs

*EDIT* Scratch that. It's worse than ever before. I wish I knew what was going on.

If you are rooted with Magisk, make sure to go into Magisk settings and turn on Zygisk and Enforce DenyList, then add you bank app to the DenyList. Probably also install the Universal SafetyNet Fix module by kdrag0n. I had to do that for Google Pay, my bank app, my loan company's app, and my laundry app.

And if you aren't rooted, maybe root with Magisk, and then do the above steps. If I remember correctly, there are/were some apps that would refuse to work just because you are on any sort of non-official rom, even if you aren't rooted. So it maybe be necessary to root, even if you didn't plan to, just so you can hide your rom status from your banking apps.
[OnePlus 9 Pro] TPower05:
Hey, I installed the current version today (Clean Install) and I am overall happy. Very cool project, thank you. Unfortunately I can no longer activate WLAN, after I disabled it once. As soon as I activate wifi via in the settings or quick settings, the settings app crash and my device freezes 10 seconds.

Does somebody has any idea?

UPDATE: WiFi works fine in secure mode. But I don't know which app is causing the problem. (No root or magisk)

UPDATE 2: I found the problem, the PayPal App . As soon as I uninstall the app, WIFI works normally again and the system boots faster.
[OnePlus 9 Pro] bbortel93:
Why does my Google Duo stop working after a week or so after a clean flash?

Thanks <3
[OnePlus 9 Pro] finkrer:
Same question, that thing just appeared out of nowhere. There is nothing in the settings and the QS tile doesn't do anything.
[OnePlus 9 Pro] xarcom:
Just remove the tile from qs and whenever you edit qs it will comeback again
[OnePlus 9 Pro] xarcom:
And reboot
[OnePlus 9 Pro] TPower05:
Hey guys, when I try to install Magisk (adb sideload in recovery), I get the following error message:

"signature verification failed"

However, you can still continue the installation. The following error message appears.

"failed to find update binary meta-inf/com/google/android/update-binar"

Could someone help me please. I have already searched for the error and tried to remove the display pere. Unfortunately without success.
[OnePlus 9 Pro] break.cold:
Never install magisk just after installing the rom, it will give you error.

Let the system boot-up as normal and do your set-up of the system then go to recovery again and install magisk.

Use LOS recovery to install magisk and use attached magisk zip to install through adb sideload.

Normally some rom's recovery give error while installing magisk. However, LOS recovery doesn't.
[OnePlus 9 Pro] max7953296:
Hello. Tell me on our firmware will face unlock?
[OnePlus 9 Pro] AlexeXt:
Hey! In the new version, can I unlock with a fingerprint directly from the AOD? Without double tap and power button. Thanks!
[OnePlus 9 Pro] Fintegra:
Just installed to the February update yesterday, since then I'm experiencing Bluetooth issues. Bluetooth is cutting in and out in my vehicles. I've tried re-pairing my device. Any one else have this problem or have some advice?

Love the ROM, so customizable and it runs very smooth! Thank you!
[OnePlus 9 Pro] PoSayDone:
Hi, I don't have adaptive icons option, is it normal?
[OnePlus 9 Pro] JohnTheFarm3r:
You need to downgrade to OOS11 ONLY IF you're on OOS12. If you're already on an AOSP based A12 ROM then you don't need to downgrade, but CLEAN flash is necessary, which means formating/wiping data before flashing a new AOSP A12 based ROM.
[OnePlus 9 Pro] Mindseye-:
Hey! Bluetooth audio on phone call, doesnt work right in new build! Tried to factory reset but it didnt work. It sounds like interference noices.
[OnePlus 9 Pro] vs3450:
I have followed every step, but when i do adb sideload, nothing happens. Any help?

Running latest platform tools as well.
[OnePlus 9 Pro] frost_icewind:
Did you check if your package is intact? Compare the md5 hash of the one you downloaded to the one in the package's download page.

If it matches, your download is good. If not, download it again.
[OnePlus 9 Pro] vs3450:
I did that.

Md5 hash checks out.

I am still not able to sideload it through adb.
[OnePlus 9 Pro] dosix97:
short - the DAC Audio does not work, it did work in the previous version of Derp. (yes, I did a clean installation)
[OnePlus 9 Pro] IamTheBRAVE:
You need to give us more details. What is the process you followed to sideload? Is your device recognised in recovery mode? What is the result of adb devices while in recovery?
[OnePlus 9 Pro] vs3450:
I followed the procedure mentioned in the OP.

I boot into recovery, factory rest the device, reboot recovery and then try to adb sideload.

In command prompt adb devices shows nothing, I do not think my device is being recognised in adb mode. In fastboot mode, it gets recognised, hence, I flashed the recovery.

In December I flashed StagOS using adb sideload and it worked just fine. Not sure what is wrong.
[OnePlus 9 Pro] IamTheBRAVE:
That's your problem. My device does this too.

After rebooting recovery, you have to press "Enable adb" then go to "Apply Update" --> "Apply through Adb". Then your device will be recognised in recovery and adb.

Then you sideload the rom.
[OnePlus 9 Pro] vs3450:
Do you use the cable provided or a different usbA to usbC cable?
[OnePlus 9 Pro] IamTheBRAVE:
I don't have the original cable (i have an OPPO charger) but it's working.
[OnePlus 9 Pro] vs3450:
Tried enabling adb in recovery still no success. Worst part is i end up with no OS and have to use MSM tool every time. Maybe there is something wrong with my platform tools and adb installed on my laptop. I am running windows 11, can that be a reason?
[OnePlus 9 Pro] alb94:
https://adb.clockworkmod.com/I had this problem, I managed to solve it by installing the universal adb drivers.
[OnePlus 9 Pro] vs3450:
i
[OnePlus 9 Pro] alb94:
What is your version? 9 or 9pro?
[OnePlus 9 Pro] alb94:
You downloaded the version of another device. The nomenclature used for the 9pro is called lemonadeP, and for the 9 lemonade. Download the latest version for your device.
[OnePlus 9 Pro] vs3450:
I have downloaded this one only, anyhow to avoid msm i have installed evolution for now.
[OnePlus 9 Pro] iamshubh69:
Bruh why close sauce rom
[OnePlus 9 Pro] Android33:
I've had this ROM about a month now it was running fine until recently I can't seem to get it to fast charge nor is it being recognized by my computer anymore any help please would be nice and I use my c to c to charge it I use a to c to connect to my PC
[OnePlus 9 Pro] aimable49:
I used warp wireless charging on oos11 before switching to derpfest but that doesn't seem to work as off now.

Has anyone else experienced this and is this something that could be fixed a future build? Or is there simply not enough demand for warp wireless charging for the devs to bother
[OnePlus 9 Pro] jay.illicit:
Hi just flashed and for some odd reason the sims dont work until a reboot. Besides this, Can't seem to connect to laptop through USB when booted into system. any ideas?
[OnePlus 9 Pro] Banjaman:
Hi, flashed the ROM + magisk today.Now I have a problem with MTP connect , tried on few PC and the phone doesn't identicated by device manager. In the phone defoult USB configuration can't be turned on. Just noted that in build.prop at bottom were added few lines:

#Auto-added by post_process_props.py

persist.sys.usb.config=none

Also I can't edit or replace build.prop because lack of free space in root folder. I will be grateful for any help
[OnePlus 9 Pro] alb94:
This is a known issue, will be fixed in the next update. A new update is about to be released. Wait a few more days. :)

Note*: I had this problem in the first update, but when installing the Arter kernel, it was fixed, since then, I left the derpe and came back other times, and the problem simply disappeared.
[OnePlus 9 Pro] @AdairJunior:
I've just got my hands on the OP9 Pro (CN) and it's my first experience with an OnePlus device. I see a lot of complainings about recent Oxygen OS releases and I'm thinking seriosly about this one -- at least until OnePlus fulfil their promise on backing to its roots on OOS 13. I've been modding smartphones since 2012 but I've never installed a OnePlus custom ROM.

That said, would you guys recommend me to try this ROM? Is the installation process too much complicated?

Thanks in advance.
[OnePlus 9 Pro] Zhono:
So, when I first flashed this rom, I had an active slot of a. I used the copy partitions script to copy a to b. So, I could set either a or b as active, and everything worked either way. When the February update came out, I manually flashed it via recovery sideload. Everything was still good(or as good as it gets, considering the semi-frequent crashes). Now, the Derp OTA updater kept harassing me to update to the Feb update, even though I was already on it, and even though I told it NOT to check for updates. Okay, whatever, I let it go ahead and re-apply the update(which took a VERY long time, like nearly 2 hours to "finalize" or whatever it said). Seemed like everything was fine, until I noticed I wasn't getting notifications on my Galaxy watch. I checked, and the watch was no longer paired to my phone. I checked the active slot, and I was on b. I set a as active, and... recovery comes up saying that the system can't load, and I can try again or do a factory reset. If I set b as active, it boots fine. I switched back to a, and manually sideloaded the feb update again, still won't boot. I reflashed the provided boot img to slot a, still won't boot. I set b as active and ran the copy partition script again to copy the working b to the broken a, and a STILL won't boot.

Any ideas here? You might think I can just set b to active, and I'm all good. But unfortunately not. The rom crashes fairly often. I never did flash back to stock(yet). And when it does crash, it automatically changes the active slot from b to a. And as far as I know, I can't switch the active slot without being at my computer to plug the phone in and use fastboot commands. So if I am not home, I essentially have a soft-bricked and completely useless phone, potentially all day, until I get home. Not a great way to use a phone, honestly.
[OnePlus 9 Pro] Dharani_V:
AFAIK , You dont need to use the copy partitions script. My recommendation now would be to use MSM go back to OOS 11. Then flash derp again.
[OnePlus 9 Pro] dmcleod:
Hi, is it possible to use TWRP install, instead of ADB Side Load?
[OnePlus 9 Pro] chefcesarpr:
TWRP does not work (yet) with A12
[OnePlus 9 Pro] @AdairJunior:
Another question (maybe a dumb one): can I root this ROM with passing Safetynet?
[OnePlus 9 Pro] demonio666:
I installed it and I like it too much I only have a question to be official will have updates ota?
[OnePlus 9 Pro] Dharani_V:
yes it has OTA updates
[OnePlus 9 Pro] demonio666:
I had to reinstall the rom because I stopped working the wifi
[OnePlus 9 Pro] yodanutz01:
How is the fluency of this ROM guys? Any issues with micro stutterings due to LTPO?
[OnePlus 9 Pro] chefcesarpr:
smooth like butter
[OnePlus 9 Pro] Zhono:
Has anyone had an instant hard crash when taking a screenshot? Afterwards, the phone refused to boot like 4 or 5 times in a row, getting stuck on the owl logo. After hard resetting the phone a bunch of times, it finally booted back up. Also had a text message come in a second or two before the crash, and when I finally got back in, the new message doesn't exist anymore. Guess I'll never know what it said lmao.
[OnePlus 9 Pro] acloh0411:
hidden and protected apps in home setting doesn't work perfectly.

Protected app still can open when the app in recent app and in notification.

for hidden app everytime had to unlock, then lock in home setting, troublesome.:p

the battery idle draining fast compared to OOS 12.:(
[OnePlus 9 Pro] vinay.dk:
Hi guys, planning on installing this rom next weekend but i use a lot of banking apps and some of them have very strict policy on root phones and won't work (used to root my S9 before and some of my banking application didn't work even when safety net is passed) my doubt now is what are the chances of applications detecting modification if i install this rom without root.
[OnePlus 9 Pro] Warrkill:
Try shamiko module after using safetynet-fix. Helped me to start banking app
[OnePlus 9 Pro] Zhono:
Check my post a page or two back.
[OnePlus 9 Pro] demonio666:
I love this rom but how often does it get updated?
[OnePlus 9 Pro] Android33:
ROM still won't connect to my PC anymore still can't turn on default USB configuration nor will it warp charge please help please fix
[OnePlus 9 Pro] vincemue:
no issues for me.

try a different cable.

maybe try clean install.
[OnePlus 9 Pro] Android33:
Have you had any help with this yet I'm having similar problems including not being able to warp charge nor connect to pc
[OnePlus 9 Pro] Android33:
Did both to no avail was fine until I got this ROM even tho I love it I need these to be fixed
[OnePlus 9 Pro] demonio666:
The battery discharges very quickly, any advice?
[OnePlus 9 Pro] Banjaman:
No solution yet, hope it will be fixed in next update.
[OnePlus 9 Pro] Behzad_ha:
I have 2 problems

1. My phone's IMEI has changed to something wrong after flashing this rom.

2.I have micro shuttering/lag when I scroll in most app such as spotify
[OnePlus 9 Pro] dmcleod:
I have a question. On my OP9 I have a strange behavior using the task manager trying to clear all apps. When I change to task manager from an app and try to clear all apps, system jumpos back to latest open app (which is not killed then).

Is this a normal "new" behavior in Android 12, so in Derpfest 12 too?
[OnePlus 9 Pro] Kingouthere:
How do I flash magisk
[OnePlus 9 Pro] Evo609:
Hi! Looks amazing!

Does changing screen resolution work in this rom?

I couldn't find any of A12 roms that include that option.

SOT is very important for me.
[OnePlus 9 Pro] break.cold:
No. You better off staying with OOS
[OnePlus 9 Pro] break.cold:
I tested all the custom roms from A11 to A12. In A11 custom rom I find Havoc-OS to be the most stable rom in comparison to other A11 roms. As of A12 custom roms, I also tested all the rom from StagOS to Evolution X and even Xtended. I find A12 to be unstable compare to A11 roms.

However, I am testing DerpFest as of right now, so far so good. But time will tell.

Many users wants OOS 11 feature to be preset in custom roms most importantly is Dolby Atoms, OOS camera, screen resolution changed and reserve wireless changing. Obviously, this features will come to custom roms in time and as of right now we all have to live without them.
[OnePlus 9 Pro] Evo609:
I have some problems with installing.

I'm on the latest A11 OOS.

1. Unlocking bootloader.

2. Flashing recovery

3. Wipe data

4. ADB Sideload Rom

Rom won't start, instead of it I'm stuck on the fastboot mode, even going to recovery is not possible now, after choosing recovery mode on bootloader menu phone is getting restarted to bootloader again.
[OnePlus 9 Pro] Time of Awakening:
Good job! Working like a charm . Expected Verizon is working too (yoohooo) . Only small lag what I have is the weird scrolling with Twiiterapp. Everything else so far so nice. Now I'm searching for a matching GCam. Thank you for the hard work.........
[OnePlus 9 Pro] break.cold:
You have to install the recovery provided by the developer in front page.

1. Install recovery through fastboot.

2. Go to factory wipe/data wipe.

3. Install rom through adb sideload.

5. Again factory wipe/data wipe.

6. Reboot

7. Let system start up and progress as normal.

8. Then again go to recovery and install Magisk zip through recovery. (Optional) step

This is the steps I use with every rom.

If you having problems with recovery or system. I would recommend using MSM tool and install the 11.10.10 OOS. The install developer recovery.
[OnePlus 9 Pro] Evo609:
Yep. I have installed the recovery that is provided with the rom itself. I will try to use MSM again and start from the beginning.
[OnePlus 9 Pro] break.cold:
Been using MGC 8.1 on all custom roms from A11 to A12. It works nicely

BSG: MGC_8.1.101_A9_GV2b

Download MGC_8.1.101_A9_GV2b by BSG.

www.celsoazevedo.com
[OnePlus 9 Pro] break.cold:
Were you with A12 ColorOS before installing this rom? Make sure you are using A11 OOS not A12.

A word of advice I will give you, always use LOS recovery. It install all the roms and zip files successfully. Don't use TWRP
[OnePlus 9 Pro] Evo609:
Yes, I was on A11 11.2.10.10. I flashed recovery that was included with the rom, from the download link.
[OnePlus 9 Pro] break.cold:
Right. Just follow the steps. Good luck
[OnePlus 9 Pro] Evo609:
Unfortunately, didn't help. Log from ADB sideload installing.

E: Signature verification failed

E: error: 21

Then I choose - Yes when it asked me about continuing installation without signature verification.

Installing update...

E: Open failed: /metadata/ota: No such file or directory

E: Couldn't mount Metadata.

Warning: No file_contexts

Install continues and still, I cannot enter the system. Rebooting to bootloader after trying to boot system.
[OnePlus 9 Pro] break.cold:
Are you using latest platform-tools from Google? It seems like Platform-tools problem. Try using latest Platform-tools.

Try factory wipe before rebooting to system
[OnePlus 9 Pro] Evo609:
I'm using mininal adb and fastboot
[OnePlus 9 Pro] break.cold:
Use latest Platform-tools from Google.

Just use latest Platform-tools and install DrepFest rom through LOS recovery. See it installs successfully!
[OnePlus 9 Pro] Evo609:
Still doesn't work by using the latest platform tools. I'm trying to reinstall A11 via MSM again and try from scratch using the latest platform-tools from the official site. Should I wipe data after installing the rom and before installing the rom or just before sideloading the rom?
[OnePlus 9 Pro] break.cold:
I do it before and after installing rom zip.
[OnePlus 9 Pro] Evo609:
Are you installing from EU, Global or India A11 Rom? Or it doesn't matter?
[OnePlus 9 Pro] break.cold:
India A11. It doesn't matter really. I installed DerpFest A12 rom from Havoc-OS A11 4.13 rom.
[OnePlus 9 Pro] Evo609:
Ok, I just tried it again, and still doesn't work. Using latest platform tools, LOS recovery that is provided with the rom itself and latest OOS A11 rom. I tried with a different LOS recovery version, still doesn't work. I'll try to install it from the havoc OS now lol
[OnePlus 9 Pro] Kingouthere:
Same here
[OnePlus 9 Pro] chefcesarpr:
Once you have the rom installed on your devices reboot to recovery, connect usb cable to pc. On the recovery select Apply Update, Apply from ADB. Then on your PC have the magisk zip on your adb folder and do "adb sideload magisk.zip"
[OnePlus 9 Pro] Ledrock:
Hey guys, the hotfix builds are up for lemonade/lemonadep. I apologize for the delay. The 12.1 builds will be posted here as soon as the source side work has been completed. Thanks for your patience and have a great weekend!

Changelog:

Device changelog:

-Hotfix build to fix minor issues with previous build.

Source changelog:

- Merge android-12.0.0_r32

- Add FaceUnlock implementation from PE

- Add AppLock from KOSP

- Add Refresh Rate QS tile for supported devices

- Allow to hide arrow for back gesture

- Add option to change PowerUsage provider

- Show battery temp on power summary

- HeadsUpTile: Do not crash SystemUI on long click

- Improve Secure QS tile toggle behaviour

- Use wireless charging animation for wired charging too

- Add VoLTE icon from Motorola

- Fix carrier label being white on light wallpaper

- Don't warn user about FC in Google TTS

- Changelog: Use NestedScrollView instead of ScrollView

- DerpLauncher: Remove protected apps in favor of system with applock

- DerpLauncher: Remove overview scrolling animation

- DerpLauncher: Refine quickspace icon shadow

- DerpLauncher: Add toggle to make AppDrawer sizes independent

- DerpLauncher: Allow changing max lines for app label

- Update Russian and Chinese translations

Download links:

Lemonadep

Lemonade
[OnePlus 9 Pro] demonio666:
does not let me install the update stays in bootloader
[OnePlus 9 Pro] Elrey567:
Just flash via Derpfest updater, I just did so when it worked just fine
[OnePlus 9 Pro] acloh0411:
The protected apps auto lock timeout should be able change to 0 sec.

The hidden apps still need to toggle unlock to open then toggle lock to hide.
[OnePlus 9 Pro] Shooter7889:
Received new OTA build. Which OTA'd quickly, rebooted through magisk,. Everything is smooth and very fluid. Another superb build on the best ROM..