DerpFest 17 Stable

#DerpFest #ROM #C #October #diting #viper #signed #QPR0

DerpFest 17 Stable OFFICIAL | Android 17
Device: Xiaomi 12T Pro (diting)
Alias: Redmi K50 Ultra
Date: 2026-10-10

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✨ October Release ✨

🪧 Info 🪧
• I changed signing keys intentionally so local updater will reject derp17. you have to adb sideload derp17. it will work normally 17 to 17 again.
• ADDED SUPPORT for aftermarket goodix (and possibly other) displays!

⚠️ Warning ⚠️
- Dirty flashing 17 over Derp 16.2 is confirmed by many to work fine; (via adb sideload)
- Taking a full backup is highly recommended in any case before updating;
- Some users were locked out of their phones due to derp17 not accepting their passwords (and patterns)
- We are investigating the issues and they will of course be fixed in a future update
- To be safe, I recommend setting whatever screen unlock you have to normal 4 digit pin before updating, as this is confirmed by everyone to work fine
Security & Fixes
- October Security Patch
Features
• Everything from 16.2 & more
• Charging stats on lockscreen + face unlock actually useful now
-> Face unlock, use fingerprint tutorials suppressed if charging, we want to see those stats
• Performance aka "Smoothness" is significantly improved yet again
• Battery life just as awesome
• I highly recommend turning off Settings - Derp Cust - Quick settings - Bouncy Mechanics
• see official derpfest blog about what's new in 17:
Regressions and Tinkering
• pattern unlock is unsupported as of now!!
Others
• A valid keybox is required to achieve play integrity.
• Achieve strong integrity without modules using below steps:
1. Disable forcing strong (enable top toggle in spoofing settings)
2. Load valid keybox.xml and pif.json in spoofing
3. Get rid of any integrity related modules if you have any
• if you used modules before, it is recommended to remove them, update, and then add them back
-> some users had bootloops with e.g. LSPosed.
Special Thanks:
- kenway214 for GameBar 👌
- Jean for donating xelegram premium! 🫶
- All my testers
- My core team - guys, you are truly the best! 😌
by: P.A.N.Z.