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OnePlus One Official Android 5.1.1 Lollipop CM12.1 Update [ How To Install Manually]




OnePlus One has started receiving the CyanogenMod 12.1 update as an OTA today.

The CM12.1 update for OnePlus One brings the Android 5.1.1 update to the device, and is available as Full ROM download below.

While the OTA update is sized around 303 MB, the full ROM is a 645 MB download. The Android 5.1.1 update was ridiculously patiently awaited by OnePlus One owners, and once OnePlus 2 was released, the wait grew pretty loud. Thankfully, the 5.1 update is finally here, as CM12.1, as build YOG4PAS1N0.

View my Flipboard Magazine.

 ÷ Prerequisites:

•This 4 OnePlus One only.
•Don’t try on any other device whatsoever.


÷ Prerequisites:





*Disclaimer:

Custom ROM fix ® provide various Firmware Updates and Rooting process along with Custom ROM,Modes,file are all belong  to their owners/developers. The autor of this site or the developers are not responsible, if you damage or brick your device.Do it on your own risk and follow the instruction properly.



÷ How To Install:

You can use both TWRP and default stock recovery that comes pre-installed with your OnePlus One. But, if you have TWRP, make sure its version is 2.8.6.0 or above. If you have older than v2.8.6.0, then install the newer TWRP recovery, or install stock recovery back.


Step 1. Download the update file (cm-12.1-YOG4PAS1N0-bacon-signed.zip) .

Step 2. Transfer the CM12.1 update file to your OnePlus One. Remember its location.

Step 3. Boot your OnePlus One into recovery mode:

•Enable developer options first. Go into Setting > About phone. Tap build no 7 times.
•Go back to settings and then choose Developer options.
•Enable Advanced reboot.
•Now, hold power button till a pop-up shows up.
•Tap on Reboot. Select Recovery. You’ll boot into recovery mode.

Step 4. Installing the update. Use the instruction for your recovery.

On Stock Cyanogen recovery, tap on Apply update > Choose from Internal Storage > 0/ > and now select the zip file (cm-12.1-YOG4PAS1N0-bacon-signed.zip) you transferred in step 2 above.
On TWRP recovery (v2.8.6.0 or newer), tap on Install > locate the update file (cm-12.1-YOG4PAS1N0-bacon-signed.zip) and tap on it. Then do the Swipe action at bottom to begin flashing the update.


Step 5. The update will start installing, just hang on. When it’s done, you will be back in recovery’s homescreen. Btw, TWRP won’t be back on homescreen, do this. First, tap on wipe cache/dalvik cache and then when that is done, tap on Home button to return to homecreen. Do nothing if you are on stock Cyanogen recovery).

Step 6. Tap on ‘Reboot system now’ on stock Cyanogen recovery to restart the device. Or, tap on System > Reboot, on TWRP recovery.

That’s it. Wait for OnePlus One to finish booting up, it may take some time. Once it does, check the Settings > About phone> Build no. It should be YOG4PAS1N0.


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