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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 11-29-2011, 08:01   #1 (permalink)
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3GS: Is it possible to downgrade 05.16.05 to 06.15.00?


Just want to double check as I am doing this for a friend.

His is travelling and wants his 5.0.1 3GS to work with another carrier.

I never downgraded 05.16.05 before and want to make sure I can downgrade it to 06.15.00 before I install and jailbreak 5.0.1

His was made sometime in 2010, so there won't be any issues with the bricking the baseband by installing iPad baseband correct?
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Old 11-29-2011, 08:13   #2 (permalink)
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Ask for the iPhone's serial number, then post it here.
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Old 11-29-2011, 08:18   #3 (permalink)
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post serial number her so that we can check if it is possible
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Old 11-29-2011, 09:11   #4 (permalink)
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iphone GS

Morning Guys Is my gs ok to downgrade i have just got it and am looking through the forum for info s/n is 880113B43NP What can i safely downgrade too please.

Regards.
Sorry its on 5.0 bb 05.16.05 Thanks Again.
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Old 11-29-2011, 12:03   #5 (permalink)
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ok

iPhone Made Week := 11
iPhone Made Year := 2010


Yes no problem Downgreid this is old platform 880113B43NP

iPhone Made Week := 11
iPhone Made Year := 2010

SAFE TO FLASH IPADE BASEBAND AT CURRENT RECODE DATE..21/11/2011

THIS INFROMATION ONLY VALID FOR IPHONE 3G AND IPHONE 3GS...


cheked with Iphone serial number checker by Chevli
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Old 11-29-2011, 12:21   #6 (permalink)
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i wouldnt suggest to flash ipad BB . makes it look like a chinese iphone
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Old 11-29-2011, 12:26   #7 (permalink)
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Try and post result. But before to start read carefully all about the problem with new baseband in 3gs.
The new chip - Toshiba can't be downgraded.

regards
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Old 11-29-2011, 12:53   #8 (permalink)
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yes i unlock one iphone 3gs 16gb BB 05.16.05 and upgrade to 06.15 version yesterday.
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Old 11-29-2011, 13:26   #9 (permalink)
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5.0.1 with 6.15 dont attempt imei will be corrupt and iphone becomes ipod ... u can always use 4.1 apple is still signing it. and then jailbreak and use 6.15.

warning again : dont flash 6.15 baseband while on 5.0.1 ... it will kill ur iphone imei wifi everything... and even if it dosnt it wont be unlocked.
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