OnePlus One is getting ahead of the pack as it finally gets support for Android 6.0.1 Marshmallow upgrade via Android Ice Cold Project (AICP) custom firmware. AICP is packed with a host of tweaks and customization options, plus the Vanilla user interface (UI).
OnePlus One phones codenamed "Bacon" can now proceed to Android 6.0.1 Marshmallow update as AICP released upgrade support for the device. AICP comes with an updated Vanilla UI, some tweaks and stability enhancements for better Marshmallow experience. Although OnePlus One was already confirmed for the official Marshmallow upgrade, device owners who cannot wait for this upgrade can use AOKP that fare well with the official build.
To proceed with the installation, here's a bunch of reminders and prerequisites:
- Never try the ROM on other versions or models not prescribed.
- Download and instal USB drivers for this version.
- Enable USB debugging mode from developer menu.
- Download and instal a custom recovery tool on the phone like CWM or TWRP.
- Back up necessary data.
Here is a step-by-step guide to download and instal AICP ROM on OnePlus One:
1. Download the AOKP Android 6.0.1 Marshmallow ROM here.
2. Download the Google Apps here.
3. Connect device on PC using USB cable then copy downloaded files to phone.
4. Press hold simultaneously the volume +, home and power buttons to restart phone into Recovery mode.
5. Perform Nandroid backup of the existing ROM. This will allow users to get back to the original software version once ROM is updated. To do this, go to Backup and Restore > Backup again. Once back is complete, go back to main recovery menu.
6. Choose "Wipe data/factory reset". Tap "Yes" to confirm action.
7. Once completed, go back to CWM recovery menu > Wipe Cache Partition > Wipe Dalvik Cache.
8. Tap Select Install zip from sdcard > Choose a zip from SD card. Find the downloaded AICP ROM and select it by pressing the power button. Tap "Yes" to confirm action. Installation shall begin.
9. Once completed, go back to third step to install the Google Apps.
10. Once completed, go back to the main recovery menu. Select "Reboot system."
Once completed, the phone should now be in Android 6.0.1 Marshmallow. To check the software, go to Settings > About phone.
