i have problem to upgrade my iPhone 3gs from 5.0.1 to 5.1.1. tried update thru phone , from itunes just click restore, DFU and restore. all kenot work...

first few times stuck at verifying with apple or something, then error 1602...
any1

yup im connected, just done uninstalling and installing itunes again. trying different ports now.
currently still stuck at "Preparing iPhone for restore"

hehee found the problem, forgot to uncheck 'Set Cydia Host when exit' at Tinyumbrella
sorry verry much

im helping my friend with his iphone 4, im assuming it is locked set (cant activate with normal sim) and need ultranow. the problem is he updated to ios6 and now cant activate. no saved shsh

i saw the latest update of redanow allowing hacktivate, did it and able to bypass activation but no cydia. testing fresh restore and jb with redsnow to confirm again... any other method?

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Added on October 18, 2012, 3:33 amupdate :
manage to restore back after pwned dfu using iReb, pwnd dfu using redsnow olwez get error 1601 dunno why....

then after jb with redsnow 0.9.1,5b2 then need boot thether, the iphone wont boot. did many2 times dunno why cant boot

This post has been edited by mastering89: Oct 18 2012, 03:33 AM

download tinyumbrella and save the shsh first.
then cook a custom firmware with the shsh or run the tinyumbrella and then restore, if not the itunes will say error bcoz apple doesnt sign the 5.1.1 anymore


anyways, my friend's ip4 now bypassed the activation with latest redsnow but stuck at semi tethered mode ( can on n use but cannot use safari mail and cydia.) when itry to boot tether it wont work....

what should i do