Phone Model:OnePlus One
System:CM12s
Waning: You should backup your phone with TWRP recovery before update just in case, even though the following steps won’t wipe your apps and data.
Steps:
- Boot to twrp recovery
- Go to install
- Select “cm-12.0-YNG1TAS213-bacon-signed.zip”
- Swipe the “Swipe to confirm flash” section
- After flashing select “wipe cache and dalvik cache”
- Flash “xposed-v-sdk-*.zip” if you want to install Xposed.
link: [OFFICIAL] Xposed for Lollipop [Android 5.0/5.1, v75, 2015/10/07] - XDA Forums - Flash “UPDATE-SuperSU-v**.zip” if you want to root your phone.
link: SuperSU - XDA Forums - Reboot