I´ve upgraded to os 4.5 and since the bb begins working it just shows"App Error ... General Blackberry forum
Fatal error in 8300
I´ve upgraded to os 4.5 and since the bb begins working it just shows"App Error 523" I reset but goes back to the error. Does anybody know how to hard reset the bb?
How To: ReInstall OS When Computer Won't Recognize The Device Is Connected
Originally Posted by isurde
Go through step by step. If it doesn't work the first time, try it a couple more times. Then, if it still does not work, use jl_cmdr (a software ap available free here at PinStack) to wipe the device. After that if I were in your shoes I'd reinstall your old OS - make sure the 4.5 you have is intended for your 83xx - you may need to reinstall your older OS until you're certain you have the correct version of 4.5
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