Hello Guys,
i have iphone 3gs which were originaly 3.1.3 and bathroom is 5.13
i have unlocked it using spritjb and everything was working great, just accidently i have upgraded it to os4 i didnt know that its not possible to unlock os4 yet , i just thought its unlocked now and will not lock again after upgrading........anyways
now help me to downgrade it to back on 3.1.3 or is there any way to unlock os4
Note : im not a mobile professional a computer professional indeed so please guide me step by step, also i dnt have SHSH or somthing like or anything saved from old version!!!
Help would b appricated
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