Aug 21 2010, 09:13 AM
QUOTE(wanzam99 @ Aug 20 2010, 06:12 PM)
For 3gs new bootroom(MC model), you cannot downgrade unless you save your phone shsh 3.1.3 with cydia. The reason is apple no longer signing firmware lower than 4.0.2. To solve your network problems, try reset network setting. Hopefully it will work.
however, if your 3gs is old bootrom than you can downgrade to lower firmware.
Exactly, but your baseband cannot be downgraded. you'll hv old firmware with latest baseband. try google it to get a good "how to" guides.however, if your 3gs is old bootrom than you can downgrade to lower firmware.
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