how to unlock iphone 3GS ipsw 4.1 8B117 - GSM-Forum

yessine · 07-14-2011, 16:32

how to unlock iphone 3GS ipsw 4.1 8B117

thank you

yessine · 07-14-2011, 16:48

thank you
so i must restore to 4.2.1

monster620 · 07-15-2011, 00:21

Don't upgrade to 4.2.1 .
Few versions of the baseband are easily unlocked.
If you upgrade to the 4.2.1 you will get the last baseband that can't be unlocked and you will have to install ipad baseband that doesn’t have gps.
So first let us know what baseband you have, people here will tell you if ultrasn0w can unlock it.
If it is a good one you can install Custom Firmware that doesn’t upgrade the baseband.
Then install ultrasn0w from cydia and you are done.

yessine · 07-15-2011, 00:29

i just use ultrasn0w from cydia and it work perfect
i have 6.15.00 baseband and 4.1 sw

07-14-2011, 16:32	#1 (permalink)
yessine Insane Poster Join Date: Jan 2009 Posts: 89 Member: 955209 Status: Offline Thanks Meter: 8	how to unlock iphone 3GS ipsw 4.1 8B117 how to unlock iphone 3GS ipsw 4.1 8B117 thank you

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07-14-2011, 16:48	#2 (permalink)
yessine Insane Poster Join Date: Jan 2009 Posts: 89 Member: 955209 Status: Offline Thanks Meter: 8	thank you so i must restore to 4.2.1

07-15-2011, 00:21	#3 (permalink)
monster620 Junior Member Join Date: Apr 2011 Location: earth Posts: 8 Member: 1550971 Status: Offline Thanks Meter: 1	Don't upgrade to 4.2.1 . Few versions of the baseband are easily unlocked. If you upgrade to the 4.2.1 you will get the last baseband that can't be unlocked and you will have to install ipad baseband that doesn’t have gps. So first let us know what baseband you have, people here will tell you if ultrasn0w can unlock it. If it is a good one you can install Custom Firmware that doesn’t upgrade the baseband. Then install ultrasn0w from cydia and you are done.

07-15-2011, 00:29	#4 (permalink)
yessine Insane Poster Join Date: Jan 2009 Posts: 89 Member: 955209 Status: Offline Thanks Meter: 8	i just use ultrasn0w from cydia and it work perfect i have 6.15.00 baseband and 4.1 sw