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Go Back   GSM-Forum > GSM & CDMA Phones / Tablets Software & Hardware Area > iPhone ,iPod & iPad (Apple Inc. Products) > iPhone 4 / iPhone 4S


iPhone 4 / iPhone 4S iPhone 4 / 4S

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Old 02-03-2011, 07:36   #1 (permalink)
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how to down grade 3G


i have iphone i update4.2.1 but no network how to downgrade 4.1 please help me
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Old 02-03-2011, 08:47   #2 (permalink)
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Originally Posted by mathankumar View Post
i have iphone i update4.2.1 but no network how to downgrade 4.1 please help me
network problem no need downgrade can you update BASEBAND 06.15.00????
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Old 02-03-2011, 09:01   #3 (permalink)
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Originally Posted by mathankumar View Post
i have iphone i update4.2.1 but no network how to downgrade 4.1 please help me

Easy Steps :
1. Open Redsn0w 0.9.6b5.
2. Browsing & select firmware
3. The new message box will pop up so click YES
4. Click next
5. Check on INSTALL CYDIA and INSTALL IPAD BASEBAND
6. Again new message box will pop up so click YES
7. Click next
8. Follow introduction for DFU
9. Jailbreak Done !
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