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08-04-2010, 01:25 PM #1
Is safe to upgrade to 4.0 and unlock?
I have been waiting for awhile to make sure OS4 stable and will be unlocked for Tmobile used.
I have 3Gs runing firmware 3.0 (I think is old modem). Can I use itune and upgrade to OS4 and can it be unlocked? or only can be jailbreak ? and all function such as MMS, SMS, internet, edge still work?
Last edited by vietkool; 08-04-2010 at 01:28 PM.
08-04-2010, 01:28 PM #2
Since you have the old bootrom you can make a custom 4.0 firmware with Pwnage Tool (Mac) or sn0wbreeze (PC) then restore to that.
08-04-2010, 01:40 PM #3
all major functions work ok for OS4 ?
08-04-2010, 04:47 PM #4
wondering the same thing before I update
08-04-2010, 10:32 PM #5
Whats the old bootrom? I just got a 3GS today on firmware 3.1.2 (5.11.07)
08-05-2010, 08:27 AM #6
my firmware is 3.0, modem firmware 04.26.08