You guys with the 64GB, do it at your own risk.
To flash CM11S (Windows)
1. Download CM11S ROM from
cm-11.0-XNPH22Q-bacon-signed-fastboot.zip_
2. Extract the zip file into one folder
3. Download ADB driver from
Dev-Host - adb-setup-1.3.exe - The Ultimate Free File Hosting / File Sharing Service
4. Install ADB driver
5. Power off your phone. Next press Vol+ and Power button together for 3 seconds. The screen will display "已进入fastboot..."
6. Connect your phone to pc and windows will install some drivers
7. In File Explorer, hold Shift, and right click mouse and open command window
8. Copy and paste the codes below into the command window line by line, with each line followed by Enter key. Remember that you'll need to wait for each line to finish it's execution before keying in the next.
fastboot oem unlock
fastboot flash boot boot.img
fastboot flash userdata userdata.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash cache cache.img
fastboot flash modem NON-HLOS.bin
fastboot flash sbl1 sbl1.mbn
fastboot flash dbi sdi.mbn
fastboot flash aboot emmc_appsboot.mbn
fastboot flash rpm rpm.mbn
fastboot flash tz tz.mbn
fastboot flash LOGO logo.bin
fastboot reboot
9. Wait for the flash process to finish and congrats. You have CM11S on your OnePlus.