After more than two months of testing, Cyanogen OS 12.1 update has been released via OTA (Over-the-Air) to the 2014 flagship smartphone, OnePlus One.
The new update (build number: YOG4PAS1N0) is around 645MB and is based on the latest Android 5.1.1 Lollipop. It has the Stagefright bug-fix. The news comes days after OnePlus released the similar OxygenOS v1.0.1.
The newer OnePlus One models running Android 5.0 Lollipop series are getting a 304MB update, reported Android Police.
If OnePlus One owners are getting the update notifications on the smartphone, then select >> "Yes, Download" option >> after downloading, click >>Install now. The phone will restart automatically and the OS will be updated to the new version.
Since OTA roll-out is carried out on a staged phase, it will take some time to reach all corners. Currently, only 2 percent OnePlus One owners have received the update as of 3:00 am US EDT, 26 August (12:30 pm IST), OnePlus forum member CasperTFG said.
Until then, users can check for OTA update manually by going to Settings >> About phone >> System update>>Check Now.
[Tip: Before checking for update manually, reboot the smartphone.
If patience is not you best suite, you can flash the update directly on to your device as well.
Cyanogen 12.1 OS (Fastboot): Download Link
Cyanogen 12.1 OS (Recovery): Download Link