I want to try debranding my w580i but I want to be able to undo it if things go wrong. However, I haven't seen a copy of the firmware I have now on the phone online. Here's what I've got (AT&T branded phone):
Firmware: R7AC001
Customization: CDA102774/102 R17A
Is there a way for me to dump the firmware from my own phone? Where do people get the firmware files you can find on sites like this one?
Thanks!