hey im knew to this forum, but that problem happened to many times, but it happened when i downloaded themes to the phone. what you need to do is on one of your pc delete the os 160. after doing that you need to redownload the old verison of the os. by the way before doing that what carrier is your 8330?







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Program files> common files> research in motion> loader> make sure you delete vendor.xml> then apploader in that same folder



