Sultanxda, who is a recognized developer at XDA, has made a custom ROM which is built on CM 13 for the OnePlus 3T.
Earlier, XDA recognized developer Grarak tweeted about how he managed to boot CyanogenMod 14 on his OnePlus 3T, followed by Sultanxda, who offered a public release of his Unofficial CM 13 as well.
Interestingly, the custom ROM is a unified one which means it supports both the OnePlus 3 and the OnePlus 3T, and you can flash it on either device as long as you have a compatible backup.
The ROM is based off the stable CyanogenMod builds based on Android 6.0 Marshmallow instead of the nightly branch, with the stability being the primary focus for an overall good user experience and comes with a highly-customized kernel, as well as some other very custom modifications.
ROM features:
- Supports both the OnePlus 3 and OnePlus 3T
- Based off latest CyanogenMod 13.0 stable (ZNH5Y) sources (root access is NOT included)
- OTA updates via built-in CMUpdater
- Improved GPS speed and accuracy
- Custom camera app featuring:
- Photo quality comparable to OxygenOS
- Anti-shake mode (increases the shutter speed to reduce motion blur)
- Manual shutter speed control (1/5000th of a second up to 30 seconds)
- Manual ISO control
- EIS when recording video at resolutions lower than 4k UHD
- Video HDR mode
- Antibanding control
- Exposure control
- Denoise control
- Face detection
- HDR
- Many other manual controls
- Many other misc. performance and stability improvements under the hood
Kernel features:
- Rebuilt from the ground up using the latest Snapdragon 821 CAF base from Qualcomm (LA.HB.1.3.2)
- Removed lots of excessive bloat (improves security and performance)
- Improved stability (several bugs not listed here have been fixed)
- DASH charge
- Passes SafetyNet bootloader unlock check
- Dynamic CPU input boost driver I wrote myself (makes the phone feel smooth without destroying battery life)
- Reduced display power consumption
- Touchscreen gestures are automatically disabled when the proximity sensor is covered
- Improved touchscreen processing latency
- Improved audio jack detection (no more weird buzzing noise and headphones are always detected on the first try)
- CPU underclocked by default (big cluster: 2054MHz LITTLE cluster: 1593MHz) (you can disable this; read the FAQ for more info)
- Custom thermal control driver I wrote myself (features 9 thermal throttle steps; keeps the phone cool)
- Westwood TCP congestion algorithm (enabled by default)
- No placebo patches, features, or compiler “optimizations”
- Many other misc. improvements not listed here
To learn more about how to flash the ROM onto your 3T, and download the source files, head to this page on XDA forums
