Someone posted a nice overview of the steps involved in backing up, restoring, and upgrading your phone's ROM. Even examples of freeware apps are provided.
Please note! Performing these kinds of operations can render your phone useless (i.e. "brick") and would most definitely VOID your warranty. Proceed with caution!!!
The general overview of this overview is as follows:
SIM and CID unlock are two different things:
1. SIM unlock lets you use your phone with other carriers of the same frequency band (e.g. T-Mobile and Cingular but NOT Sprint, Nextel, Verizon)
2. CID unlock lets you upgrade your phone's ROM of three types:
a. OS (the phone's Operating System)
b. Radio (the radio antenna controlled by the OS)
c. Extended (your carrier's customization screens and UI - you know, that picture with Catherine Zeta-Jones)
Then you need the apps to help you deal with ROM transfers and they mention two:
1. lokiwiz(SIM and CID unlock)
2. aWizard ROM Utils (CID unlock only)
Don't forget to BACKUP! BACKUP! BACKUP! just in case you want to restore it. I'm pretty certain your carrier frowns upon this and would decline to take care of your phone should you mess it up real good.
Here's the original thread:
http://forum.xda-developers.com/viewtopic.php?t=44403
Posted 05/16/2006 by Administrator | Filed under: MDA / 8125 / 6700

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