Upgrade your OnePlus One phone to new CyanogenMod11s? (latest version cm-11.0-XNPH25R-bacon-signed-fastboot) or get a new OPO phones from Nextbuying or eBay etc.. and if get the phones running china version ColorOS want Upgrade to CM11S, the post will help to you.
1, CyanogenMod11s system Upgrade
1> First you Download the following files on CyanogenMod sites latest CyanogenMod11s cm-11.0-XNPH25R-bacon-signed-fastboot
2> Please prepare your tools of adb/fastboot as well.
1)Configure your computer for fastboot via cyanogenmod link.
2)Enable USB debugging on the device.
3)Connect the device to the computer through USB.
2> From a terminal on a computer, type the following to boot the device into fastboot mode Open command prompt and access the adb/flashtool directory, run these command:
adb reboot bootloader
3> Once in flashmode, run:
fastboot oem unlock
4> At this point your phone will prompt you that phone data will be wiped, select confirm.
5> Go back to the phone and enable USB debugging again and reboot with adb:
adb reboot bootloader
6> Now, here's the main flashing, ensure that the downloaded flash image are in the same directory as your adb/flashtool, then run the following commands:
fastboot flash boot boot.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
7> Complete! Your phone is officially CM11S.
More Detailed step by step CyanogenMod Official "How to Install CyanogenMod on the OnePlus One ("bacon")
German Customers Check the link : http://www.handy-faq.de/forum/oneplus_one_forum/308489-oneplus_one_coloros_cm11s_flashen.html
2, ColorOS to CM11S
1) Download first rom from https://cyngn.com/products/oneplusone/
2) Copy all zip file to Phones
3) Then reboot phone to recovery (power on and volume up together) choose update.
4) Choose new ROM , install , reboot , again in recovery , flush data, flush all , reboot and vuala I have cm11s one plus .