Wiko Rainbow: How to get Lollipop Cyanogen CM 12.1 / fix NVRAM errors and recover your IMEIs

If you have a Wiko Rainbow and rooted / flashed / fixed it the wrong way, then it could happen, that you wake up with an NVRAM error in your WiFi-setting or in IMEI-related problems. I just wrote some short words about how to fix it...

at my Wiko Rainbow blog. HERE you can also read up how to install a fresh Lollipop 5.1.1 ROM to your beloved Wiko Rainbow.

Yet the ROM has som minor flaws like very loud system or media sounds or this:

USSD (Is only working for some carriers)
Youtube Playbas is limited to 360P (Use OGYouTube app)
1080p Video Playback is laggy (Use vlc app from play store)
FM audio is only working for headphones

Anyway. The ROM is fast, responsive and good for daily use. Hope they'll fix the sound-related bugs soon.