How do I upgrade my Dell XCD35 from 2.2 Froyo to 2.3 Gingerbread? Possible Duplicate:
  How do I update the OS in my device?  




I'm not an expert in this, and need help. I have serious issues with the Froyo build and want to upgrade my brand new phone to Gingerbread. How can I do this?
It is not available as a standard upgrade through the manufacturer.
Root it.
Install Clockworkmod Recovery.


Install ROM Manager.
Run it and select your device.
Choose the "Flash Clockwork recovery" (or similar) option.

Install a custom ROM.


Note that doing this voids your warranty and may brick your device.  I highly recommend reading through the XDA forum (the last link above) so you get a good grasp of everything involved here.  In particular, a lot of the ROMs are for "GEN2 devices".  I don't know know if that's a hardware revision or a firmware version, or if there are any relevant differences between the Dell XCD35 and the ZTE Blade that you would need to account for before installing a Blade ROM.  Edit: See http://wiki.modaco.com/index.php/ZTE_Blade#What_different_Blade_versions_are_out_there.3F for some useful info, the rest of that wiki is useful too.