[ROM][11.0][Beta] DerpFest R for ONEPLUS 7T[OFFICIAL][hotdogb]

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Senior Member
Aug 9, 2014
Mother Base
This is how it looks and you can just power it off from there
And this is what i've got (see ss):

1st button is snooze and 2nd is switch off (alarm is working and everything is good)

The only thing that i don't understand is why it comes in heads-up mode instead of full screen like your screenshot like other roms.. Do i have to activate something in particular?


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Senior Member
May 28, 2015
thanks to dev, a totally smooth install from oos.

just wondered if it is possible at some stage to allow separate gapp install, as the number of google apps that comes with the rom is quite jaw dropping for anyone used to micro/nano level of provisions...


Senior Member
  • Dec 26, 2014
    After cleaning flashing this ROM while following the new installation steps for the latest 04 29 build my play store is broken. I have followed all the troubleshooting steps including clearing app cache and data and uninstalling updates... the same with Google Play services. I have factory reset my device multiple times now in the last 24 hours. I have a 300mbps speed internet plan so its not slow internet either. Whatever I do Play Store just won't download apps. By chance some small size apps that I tried did get installed but I'm not able to update apps or download new ones. The exact symptoms are... after I hit the install button on any app "Waiting to download" or downloads stuck at 54% sometimes stuck at 72% and sometimes stuck at 99% after waiting for a long time I get an error saying that play Store cannot download the app.

    I have also attached a logcat taken while the download was stuck.

    Tried all the troubleshooting steps from this and still not fixed.


    Senior Member
  • Dec 26, 2014
    R u in usa? Try flashing latest google play services apk via sideloading

    India. I can install apks from file explorer and they install but nothing from google play store.

    Side note: This has begun ever since I changed data partiton to f2fs from ext4 from chinese twrp... i flashed derp immediately after that obviously but i have evn flashed msm tool gone back to oos with locked bootloader and i still get the play store issue which is really really strange!


    Senior Member
    May 28, 2015
    had a couple of incidents of 'qualcomm crashdump mode' in one day since flashing the rom, with these details (abbrev):


    but rebooting works fine. anyone else had this issue?

    thank you


    Senior Member
    Mar 24, 2009
    Phoenix, Az
    OnePlus 7T
    had a couple of incidents of 'qualcomm crashdump mode' in one day since flashing the rom, with these details (abbrev):


    but rebooting works fine. anyone else had this issue?

    thank you
    Only when using Android auto mine would go to qualcomm dump mode. I haven't had it happen any other time.


    Senior Member
  • Jan 27, 2011
    I stumble on one issue, may only pertain to me.

    I plugged my data cable to my PC, and Handset.

    My goal being to use fastboot , to boot twrp and flash a kernel.
    Although when connected my machine doesn't recognize the phone. Usually change the USB settings an this fixes it, but they seem to be greyed out.

    EDIT :

    Fix by going to developer settings , and switching USB default to File transfer


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    Dec 9, 2019
    I'm running into a problem on the last build: NoNavBar on substratum lite cannot be installed. It either gets stuck on the installation screen or gives that error in the screenshot. Anyone experiencing the same problem? On the previous build it was working perfectly.
    I also did a clean flash and reinstall Rom to make it work but it still doesn't, so I'm pretty sure its a problem of this build.

    EDIT: I installed normal substratum and navigation gestures mod 2.0. It works fine now.


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    • 5
      Just pushed a new build.

      Who is already using the previous, can get it via the inbuilt updater.
      Link os on the first post and changelog is on the third one.

      Ps: First boot if you are dirty flashing may take up to 5min.

      New build is up.

      Check here for more details, such as download link and changelog.
      Kujo I was under the impression that we have no working twrp for the 7t...is a build available?
      There have been several twrps available one closed source not shared here and was for Roms with fbev1 encryption and now a new open source one that is for fbev2.
      where might find open source for fbev2
      (not trying to thread jack)
      Coming from Cr Droid, using the Flash instructions within OP.

      sideload * Cannot read Derp..zip *

      Although, I am able to sideload other ROMs.

      try to change other recovery
    • 25

      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.


      GApps included!

      - Signed with release keys like stock
      - Google network stack
      - Google PSU support
      - Google APN's and CarrierConfig
      - Accent color, font, icon shape, icon pack customizations from Bootleggers
      - Statusbar icons tuner
      - App lock
      - Face unlock
      - Expandable volume panel
      - Omni weather
      - Gvisual Mod
      - Advanced gesture navigation options
      - FOD icon picker and wallpaper based color option
      - FOD Animations
      - Custom logo customizations
      - Custom Carrier Label & Carrier Label Placement
      - AOD Schedule options
      - 3 finger swipe to screenshot
      - Cycle through ringer modes
      - Adaptive playback
      - Long press power button to toggle flashlight
      - Long press volume button to skip track
      - Advanced reboot options
      - Additional lockscreen sclocks
      - QS tile styles
      - Switch styles
      - Custom QS headers
      - Edge light options
      - Battery light toggle
      - Scrolling screenshot (Asus stitchimage)
      - Battery icon styles (circle/bar/hidden)
      - QS quick pulldown
      - Bunch of useful QS tiles in addition to AOSP ones:
      - AOD
      - Caffeine
      - Data Switch
      - Location modes
      - HeadsUp (peek notifications)
      - Kill app
      - Weather
      - USB tethering
      - Screenshot (partial/full)
      - Sound (ringer modes)
      - Sound search
      - Reboot (system/recovery)
      - Mono/Stereo
      - Notifications clear all button
      - OOS-inspired QS tiles layout
      - Data usage under QS
      - Small oreo-like data type icon
      - Traffic indicator for wifi and mobile data
      - OOS-inspired Network speed indicator
      - VoLTE/VoWiFi multi-sim icon
      - Lockscreen media art and blur level controls
      - Improved statusbar pulldown blur
      - Added blur to power menu
      - Double tap to sleep on statusbar, launcher, lockscreen
      - Finer control over font size
      - Mini panels for wifi, bluetooth, NFC
      - Per-app network restrictions
      - Allow hotspot/tethering to use VPN (toggleable)
      - Additional charging info on lockscreen
      - Statusbar bluetooth battery level
      - NFC tile for devices with nfc
      - Multi SIM ringtone setting
      - Screen recorder stop dot and low quality options
      - Bring back 2 button navigation from pie
      - Delete button for screenshots
      - Show 3 QS columns when media player is inactive
      - Faster fingerprint wakeup
      - Pixel offline charging animation (for supported devices)
      - Enabled iorap and zygote preforking (for faster app launch)
      - One click to add/remove QS tiles
      - Hacks to bypass safetynet and root detection
      - Few pixel features like assist disclosure, live captions, adaptive connectivity
      - Optimizations and fixes from AOSPA, ProtonAOSP & upstream AOSP master

      - CAF functionality improvements/enhancements:
      - Bluetooth A2DP hardware offload
      - Audio policy extensions
      - Camera extensions
      - Telephony framework
      - Individual sim toggle (for some dualsim devices)
      - WiFi display/miracast
      - Hardware accelerated screen recording
      - NQ NFC support (for nfc supported devices)
      - Power off alarm in inbuilt clock app
      - Touch response optimizations
      - Performance improvements & fixes throughout the system

      Device-specific features
      - DisplayModes, FPS Info tile, Refresh Rate, Alert slider preferences
      - Touchscreen Gesture controls

      What's broken?
      You tell me!



      Flashing guide
      Screenshots in post #2

      Follow us on


      Google for Android and AOSP




      ABC ROM





      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 7T

      Contributors @NurKeinNeid

      ROM source: Derpfest
      Device sources: matt0301
      Kernel source: sm8150
      ROM OS Version: 11.x
      Based On: AOSP
      Status: Beta
      Created 2021-22-03
      Last Updated 2021-22-03
      New Derpfest build is up. Here is the link for it. Sourceforge

      Clean Flash is necessary due to new OOs11 blobs.
      Btw, this one got Google Chrome crash fixed.

      Don't forget to join my Telegram Channel. Here is the link for it. Telegram.

      Hi guys! New update!

      Here is the changelog. Download link is in the OP.

      First Official build is up!

      Overall, fixed a few stuffs and added a few stuff. Look on github to know better!
      I'll never recommend a dirty flash, as I never will do that on my device.

      (Link is on op, changed to SF by now)
      New Update is up and link is on OP

      Just a sidenote, you guys will need to clean flash it to be able to boot, since the big rebase over LOS trees.

      Here is the changelog
      And here, a quick guide on how to flash, big thanks to @lil_kujo
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