OnePlus co-founder Carl Pei has now confirmed that the eagerly anticipated CyanogenMod 12S update for the OnePlus One smartphone has received certification and will be rolled out within a few days.

Users of the "flagship killer" OnePlus One running Cyanogen OS have been worried about the consequences of the fallout between the Chinese startup smartphone manufacturer and Cyanogen late last year. Following its break-up with Cyanogen, OnePlus has been developing its own custom Android ROM, called Oxygen OS, which is designed to give almost a stock Android like experience, similar to that on the Nexus 6. Last week, OnePlus finally released the new Oxygen OS for the OnePlus One after numerous delays and missing its self-imposed deadline.

Apart from its own version of Android for the OnePlus One, the company had also planned to release a new version of CyanogenMod (CyanogenMod 12s) for the OnePlus One. However, the company had failed to meet its March 30 deadline for releasing CyanogenMod 12S featuring Android 5.0.2, due to certification issues.

Steve Kondik, chief technical officer at Cyanogen, in response to the delay over releasing the CyanogenMod 12s update for OnePlus One stated through a Google post: "Seriously though, a new test suite came out because of MR1 literally the same day as we submitted, and so we had to redo the whole process with the new one."

Carl Pei has now informed via Twitter that the CyanogenMod 12s update had 'just passed certification today' and should be available in the next few days. The CyanogenMod 12s update will be pushed out to OnePlus One devices over-the-air and after updating the device with the latest software, users will experience improved privacy and permission controls, and LiveDisplay to help control how the display works at different times.