Upgrade 4.1 to 4.21 3Gs - GSM-Forum

samnang007 · 03-31-2011, 08:08

hi, my iphone 3gs version 4.1 modem 6.15. i want to upgrade ios to 4.2.1 but when update, it not completed show error !!!!!!

my phone screen show only USB+iTune

how can i update my iphone to 4.2.1?

xerraco · 03-31-2011, 08:17

What is the error displayed? did you try to kick out of Recovery?

riajul1988 · 03-31-2011, 08:18

brother update ios 4.3.1

samnang007 · 04-04-2011, 05:29

wow if i update to ios 4.3.1 my phone will lock services and can't jailbreak it

how can i do to 4.2.1 for use Bluetooth app??

03-31-2011, 08:08	#1 (permalink)
samnang007 Freak Poster Join Date: Aug 2008 Posts: 139 Member: 848265 Status: Offline Sonork: 123 Thanks Meter: 17	Upgrade 4.1 to 4.21 3Gs hi, my iphone 3gs version 4.1 modem 6.15. i want to upgrade ios to 4.2.1 but when update, it not completed show error !!!!!! my phone screen show only USB+iTune how can i update my iphone to 4.2.1?

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03-31-2011, 08:17	#2 (permalink)
xerraco No Life Poster Join Date: Nov 2008 Location: RVIII Posts: 11,696 Member: 890926 Status: Offline Thanks Meter: 2,053	What is the error displayed? did you try to kick out of Recovery?

03-31-2011, 08:18	#3 (permalink)
riajul1988 No Life Poster Join Date: Feb 2011 Location: (BaNgLaDeSh).(U.A.E,AD) Posts: 1,952 Member: 1511441 Status: Offline Sonork: 100.1604057 Thanks Meter: 1,162	brother update ios 4.3.1

04-04-2011, 05:29	#4 (permalink)
samnang007 Freak Poster Join Date: Aug 2008 Posts: 139 Member: 848265 Status: Offline Sonork: 123 Thanks Meter: 17	wow if i update to ios 4.3.1 my phone will lock services and can't jailbreak it how can i do to 4.2.1 for use Bluetooth app??