OnePlus One, which is currently running on the CyanogenMod 11S (Android 4.4 KitKat) ROM will receive the CyanogenMod 12S (Android 5.0.2 Lollipop) OTA update shortly. However, an unofficial build of CyanogenMod 12.1 (Android 5.1) is now available for OnePlus One. Interested users can update their OnePlus One to Android 5.1 with CM 12.1(Unofficial) custom ROM.
BlissRom is becoming a popular custom ROM with support for a variety of Android devices including OnePlus One, Nexus 5, nexus 6, Moto X, etc. The base of this firmware is CyanogenMod 12 (Android 5.0.2 Lollipop) and has some added features, but the main attraction of this ROM is its numerous personalization options.
Bricked OnePlus One can now be easily unbrick and go back to the stock firmware with a new application called OnePlus Recovery Tool. OnePlus One smartphone is currently running on the CyanogenMod 11 (Android 4.4.4 KitKat) ROM. However, if you have modified your device with a custom ROM or bricked it while doing so, OnePlus Recovery Tool can restore your device.
OnePlus One smartphone users can now upgrade their device to Android Lollipop with official Android 5.0 Lollipop ROM. OnePlus has developed its own Android 5.0 Lollipop ROM for the OnePlus One phone, may be due to the controversy with CyanogenMod licensing in India. Based on the ASOP (Android Open Source Project), this ROM is free from bloatware apps and has near stock interface, like Nexus devices.
OnePlus One has capacitive navigation keys for menu, home, and back instead of the onscreen navigation keys found in Nexus 5, Xperia Z3, HTC One M8 or Moto X. Though onscreen navigation keys (also called software keys) are a waste of screen real estate, they are trendy and have few advantages over capacitive keys (also called hardware keys). For instance, it will not stop working, as well as the functions of software keys can be reassigned as per our requirements.
OnePlus One transformation kit lets you transform your Android phone into OnePlus One. This kit includes some of the best features of OnePlus One, such as Hexo theme, lock screen, camera app, gallery app, the dedicated screencast app and Audio FX sound manager. The following method shows you how to install the OnePlus One conversion kit in your phone.