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I have been searching the forums like crazy and cant find a post that explains this. I upgraded to 4.5 a few days ago but didnt delete the vendor.xml file. i have had a few small issues and things not working. I downloaded and have been using JL_cmder to try and wipe and reset to factory settings but it only wipes the device and wont return it to 4.2.2. i installed 4.2.2 and tried again and still wont get rid of 4.5 How can i make it so 4.5 is gone or how can i make it so device is wiped of everything and i can re-install the os? I have the curve 8310 for att.