No, you cannot revert back (at least not officially). If you really want to flash the previous firmware, head over to XDA developers, and learn how to do so. Keep in mind:
- You should do extensive reading beforehand & know exactly what you are doing before you do it.
- You will void your warranty
- T-Mobile cannot help you with any problems this may incur
- If you are not careful, or something goes wrong, your phone may become an expensive paperweight.
The L90 is a nice phone, and a real bargain given its price point. I've done a lot of tweaking on my L90's (I have more than one), but I'm also a power user. So again, proceed with the utmost discretion.
Thank you. I would prefer the OS update included some options for the
keyboard font, icons, etc.... alas...