[ROM][12L] DerpFest for OnePlus 5/T [Official][2022-05-22]

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Nov 23, 2019
Battery usage stats aren't working. It's blank throughout


Apr 30, 2019
[Suggestion] It would be great if you could add some features to DerpLauncher to make it more customizable:
- Hide and lock apps
- Support for icon packs
- Hide app labels

Third-party launchers could do that but aren't as smooth as the original launcher.

Edit: thanks for adding these features in the latest update.

Last edited:

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  • 5
    @NurKeinNeid Well...? What do you gonna do? Keep the thread in the wrong one or place it in it's rightful place?
    In my view the thread is already in the right place. I don't own a cheeseburger device and don't want to be responsible for it. There's also no hw key customizations which a cheeseburger user would expect. I think most have noticed and understood that I only share cheeseburger out of benevolence and because it's not a very big hassle. I can change the title and remove cheeseburger if it makes more sense.
    Alex Will we receive future updates for dumpling?
    Yes, I still keep the devices I own up to date.
    Alex, will dumpling be getting future updates, as derpfest is eol now ,but we are still receiving updates.
    If that was a question, the answer is yes.
    i've installed derpfest yesyerday, and before in oxygen the slot worked
    You can only try or wait to check it on your next clean flash, maybe with another ROM, in order to obtain the maximum certainty.
    If you feel comfortable with this current situation wait.
    If you want to test, try.
    You can only try or wait to check it on your next clean flash, maybe with another ROM, in order to obtain the maximum certainty.
    If you feel comfortable with this current situation wait.
    If you want to test, try.
    hope there will be a look into it by @NurKeinNeid
  • 150


    This is a small project based on AOSP. We try to be a platform for beginners and support the Custom ROM community with our own unique contributions as well. This ROM exists thanks to inspiration of AOSiP, Thank you! #StayDerped

    /* Your warranty is now void.
    * I am not responsible for bricked devices, dead SD cards,
    * thermonuclear war, or you getting fired because the alarm app failed. Please
    * do some research if you have any concerns about features included in this ROM
    * before flashing it! YOU are choosing to make these modifications, and if
    * you point the finger at me for messing up your device, I will laugh at you.

    What's broken?
    - Reverting to 11 may be difficult and may require reset of internal storage


    Dotfix 6.3 TWRP flashable for dumpling if you need: https://drive.google.com/file/d/1y5Iu-RYKULAXc6z4t3s3fdG56YpnHKEJ/view?usp=drivesdk


    Google Drive



    Google Drive


    Read FAQ in post #2

    Follow us on


    Google for Android and AOSP









    Cory Collins


    Any others we may have forgotten to credit

    And last but not the least, all our testers, who have helped us to squash many bugs so that we can try to release builds that as are flawless as possible

    XDA:DevDB Information

    DerpFest, ROM for the OnePlus 5T

    Contributors @NurKeinNeid

    ROM Source https://github.com/DerpFest-12

    Kernel Source https://github.com/DerpFest-12/kernel_oneplus_msm8998

    ROM OS Version: 12L

    ROM Kernel: Linux 4.x

    ROM Firmware Required: 10.0.1

    Based On: AOSP

    Version Information

    Status: Stable

    Created 2019-10-05

    Last Updated 2022-05-22​
    Derpfest Beta Update!

    Sorry for the delay. It's my fault. I was not satisfied yesterday. But it turned out it was just me. But that also meant that we now had more time and could add and fix more stuff. Many thanks to all who helped, especially to @idoybh.

    I'm not sure I should push OTA. I think it's safer for the next release. I now have a whole week of free time and can finally devote more time to the ROM. Let's see what we can bring new.

    Cheeseburger provided by @David again. Much thanks to him :)

    - Updated to latest AOSP Clang 10.0.1
    - Upstreamed Kronic to 4.4.205
    - audio: Removed hw_acc effect
    - audio: Removed audio amplifier
    - Reverted vulkan blobs from mata

    - Added Custom Rounded Corner and Padding preferences (Thanks to @911-Future_Maker)
    - Improved Statusbar logos (thanks to @fraz14)
    - Added Increasing ring feature (thanks to @fraz14)
    - Added Option to edit footer text
    - Added Screen off animations
    - Added Combined & Dynamic Network Traffic Mode
    - Added Option to select size of Single Traffic (Up/Down) Font Size
    - Added Hide notch support
    - Added Option to suppress notifications sound/vibration if screen is on
    - Modified In-display fingerprint icon (thanks to @okitavera)
    - Added OP Screen Recorder (available from qs tile)
    - Updated Pixel LiveWallpapers (color options included for example)
    - Added Switch for pre P mobile type icon style
    - Improved Network tuner switches and ims icon behavior
    - Fixed custom app selection dialog for hw keys
    - Added flash-call-on-waiting options
    - Added back developer QS tiles
    - Added back SELinux info
    - Properly handle View Visibility for left clock
    - Fixed right clock padding
    - Fixed statusbar clock overlapping after reboot
    - Improved Compass qs tile and added a device supports compass check
    - Allowed disabling BrightlineFalsingManager with config flag
    - Use matching data usage size formatting between QS and Settings
    - Added support for showing Notification LED in zen mode
    - Switched to new AOSP method to set screenshot delay to 0
    - Turned off some more debugging
    - Force disabled PlayServices OTA checks
    - Conditionally disabled uncrypt for ota
    - Granted some more permissions for Google apps
    - Some more things maybe I can't remember more :p


    Google Drive

    Google Drive - Mirror

    AFH - Mirror

    Google Drive

    AFH - Mirror


    Firmware required:


    Thanks for all your feedback, and support!
    Derpfest Update!

    Unfortunately, I couldn't make it last night and am now at work but I really wanted to bring you an update. So there is only Google Drive and I will upload sourceforge and push OTA tonight.

    Many thanks to @David, who built again today for cheeseburger.

    - Reverted some of recent wifi config changes
    - Updated Clang to 10.0.4
    - Fixed manual network selection
    - Some various kernel updates

    - Added back gesture haptic feedback toggle
    - Improved QS detail view layout
    - Improved AOD QS tile (states and longclick added)
    - Reworked color options for Edge light
    - Added Force Expanded Notifications option
    - Added Dark theme scheduling
    - Removed system accents entirely and added RGB accent presets for the picker
    - Added Hentai custom header pack
    - Rmoved ugly separator in ChooserActivity
    - Updated AOD QS tile drawable
    - Allowed full heigth for bottom layout in style option picker
    - Allowed to launch themepicker from app drawer with other launchers
    - Use system fonts at more places
    - Fixed USSD alert dialog theme
    - Added an about page to DerpQuest
    - Fixed navbar color in PermissionsManager when using dark themes
    - Make resolver list layouts have round corners
    - Use colorPrimary for QS detail toolbar
    - Use MD2 icon for missed call notification
    - Don't disable GPS in Doze until the device is stationary
    - Fixed Carrier Label text overlap when notifications arrives
    - Made emergency notification dismissable
    - Fixed failed unlock attempt dialog button
    - Added Signature spoofing support
    - Fixed User edit info dialog during rotation
    - Added cpu set for audio app
    - Reapplied QC blkio cgroup support value adds using new task_profiles
    - Refined battery saver footer string
    - Updated Chinese, German and Russian translations
    - Added French and Hindi translations
    - Some more things maybe I can't remember more :p



    Google Drive



    Google Drive

    Derpfest Beta Update!

    It was a wild week with the r16 merge. I wanted to realize something more, but I think what we have achieved is very good. And anything that doesn't make it into the release will be even more polished in the next build. Many thanks again to @idoybh. I enjoy the cooperation.

    Cheeseburger provided by @David again. Much thanks to him :)

    NOTE: We just noticed "double tap to trigger doze" is crashing when trying to open the intent. We just missed checking this. Will be fixed in next build.

    - Upstreamed Kronic to 4.4.206
    - Removed Dirac (according to the survey results on Telegram)
    - Reenabled location provider packages
    - Updated ims from LA.UM.8.6.r1-01900-89xx.0
    - Updated qti telephony jar from LA.UM.8.6.r1-01900-89xx.0

    - Merged December Security Patch (r16)
    - Added DataSwitch QS tile
    - Added Edge lighting notification option
    - Added Custom Carrier Label & Carrier Label Placement options
    - Added option to hide arrow for back gesture
    - Added QS panel opacity option
    - Removed Screen off animations (broken after r16 merge)
    - Improved Partial screenshot (allowed back action only from right side)
    - Improved Screenshot QS tile
    - Added option for visualizer default color
    - Added Double tap to trigger doze
    - Added option to set pulse brightness
    - Fixed tilepage layout update for QS tiles
    - Fixed black screen after AOD_PAUSED
    - Restored cache clean up code in PackageManagerService
    - Cellular QS tile title is based on carrier now
    - Removed data tile dialog
    - Added Omni Doze settings & TimeInState
    - Reimported Google TextClock translations and removed 24h translations
    - Added ability to open sound settings on long click at the panel button
    - Changed default font size of Single Traffic to 21dp
    - Enabled double tap sleep gestures by default
    - Improved Bluetooth battery level icons
    - Some more things maybe I can't remember more :p


    Google Drive

    Google Drive - Mirror

    AFH - Mirror

    Google Drive

    AFH - Mirror


    Firmware required:


    Thanks for all your feedback, and support!
    Frequently asked Questions

    1) How do i install Derpfest Shion A12?
    - Take backup of internal storage (files/pdf/documents etc)
    - If you are encrypted: Flash rom and format internal storage(type yes to wipe)
    -If you are decrypted: flash rom and reboot

    1a) Why should I format my internal storage?
    - As of now in A12, twrp cannot decrypt data which means you cannot input password in twrp and flash files.
    - This rom has not enforced encryption which means twrp will now work(to circumvent the need for adb/pc for flashing)

    2) I am bootlooping!!
    - You are bootlooping because you were encrypted and flashed the latest build.
    -format internal storage(type yes to wipe) and it should boot.

    3) Can twrp decrypt?
    - As of now in A12 no.

    4)How do I sideload?
    - Use a pc with working adb.
    - reboot to twrp> advanced>sideload>swipe.
    - open command prompt on your pc and type:
    adb sideload filename.zip (replace file and with filename of zip)

    5) How can I change the base color of Monet?
    - you'll need to use color override in monet settings and input the Hexcode of your favorite color
    - Hexcode can be found at:

    6)Does Google original quality backup work?
    - Yes.

    7) Google original quality backup doesn't work!!
    - using a root browser, go to
    and delete all the props which have "2020" in their name and reboot

    8)Does Gcam work and which version?
    - Yes NikGcam7.4,8.1,8.2

    9)Is dotfix built in?

    10) Nightsight crashing on ngcam 8.2!
    -go to developer options in gcam
    -search for "camera.cuttle.glpreview" and switch it off.

    11) Which magisk to use for rooting?
    - latest and canary both work.