how to downgrade i phone 3gs 5.0 to 4.2.1 - GSM-Forum

laxman kumar · 11-19-2011, 11:22

hi,
please help me any one how to downgrade i phone 3gs 5.0 to 4.2.1

laxman kumar · 11-19-2011, 11:51

please help me ......

**GSM MIND** · 11-19-2011, 12:07

if u have shsh save then simple put fone in dfu mode and restore with custom file.if u dnt then restore it with 4.1 custome file.

br

rana_sab · 11-19-2011, 12:13

you can downgrade only if you have save your shsh bloobs
download latest version of tinyumbrela and click save shsh maybe cydia have your shsh for some versions

laxman kumar · 11-19-2011, 13:51

i dont have saved shsh file now my phone in recovery mode.how to solve this problem please help me

thanks.

.::Gsm-Play::. · 11-19-2011, 14:43

Quote:

Originally Posted by laxman kumar

i dont have saved shsh file now my phone in recovery mode.how to solve this problem please help me

thanks.

Try this.

Run Ireb4 {fone will become on dfu mode}

Make custom firmware 4.2.1 via sn0wbreeze 2.1 and flash it via itunes

unlock via ultrasn0w

Done.

I hope your problem solved.

laxman kumar · 11-21-2011, 07:03

Quote:

Originally Posted by GSM MIND

if u have shsh save then simple put fone in dfu mode and restore with custom file.if u dnt then restore it with 4.1 custome file.

br

Quote:

Originally Posted by rana_sab

you can downgrade only if you have save your shsh bloobs
download latest version of tinyumbrela and click save shsh maybe cydia have your shsh for some versions

Quote:

Originally Posted by Faijaskw

Try this.

Run Ireb4 {fone will become on dfu mode}

Make custom firmware 4.2.1 via sn0wbreeze 2.1 and flash it via itunes

unlock via ultrasn0w

Done.

I hope your problem solved.

thank you for helping now my problem solved .

delax · 11-21-2011, 11:09

4.2.1 Why? you no need to save the file shsh. you flash to version 4.1. you flash one time. itunes will give you an error and the phone will stay in recovery mode. after you pass in DFU mode and you reflash the phone. and you will have the same error in recovery mode. with TinyUmbrella 'exit recovery mode' end

spider08 · 11-21-2011, 13:37

Quote:

Originally Posted by Faijaskw

Try this.

Run Ireb4 {fone will become on dfu mode}

Make custom firmware 4.2.1 via sn0wbreeze 2.1 and flash it via itunes

unlock via ultrasn0w

Done.

I hope your problem solved.

after instal cydia ,it's not starting when i press cydia. after i did tthered with redsnow the result is same. what can i do to run cydia on 3gs v4.2.1 ?

pls help.

.::Gsm-Play::. · 11-21-2011, 14:36

Quote:

Originally Posted by spider08

after instal cydia ,it's not starting when i press cydia. after i did tthered with redsnow the result is same. what can i do to run cydia on 3gs v4.2.1 ?

pls help.

Install again cydia.use redsn0w_win_0.9.6b5.

rameshbhaskar · 11-21-2011, 15:19

CANT DOWNGRADE 3Gs WITHOUT SHSH
I TRY DOWNGRADE FROM 5.01 TO 4.3.3 OK
BUT AFTER DOWNGRADE PHONE ONLY IN DFU MODE, CANT FIX IT !!!

any solution?

monufasterman · 11-21-2011, 15:31

Just downgrade with custome 4.1 and install cydia and update the baseband.

11-19-2011, 11:22	#1 (permalink)
laxman kumar No Life Poster Join Date: Mar 2008 Location: VIZAG,A.P,๑۩INDIA& Posts: 1,335 Member: 733702 Status: Offline Sonork: 100.1579452 Thanks Meter: 580	how to downgrade i phone 3gs 5.0 to 4.2.1 hi, please help me any one how to downgrade i phone 3gs 5.0 to 4.2.1

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11-19-2011, 11:51	#2 (permalink)
laxman kumar No Life Poster Join Date: Mar 2008 Location: VIZAG,A.P,๑۩INDIA& Posts: 1,335 Member: 733702 Status: Offline Sonork: 100.1579452 Thanks Meter: 580	please help me ......

11-19-2011, 12:07	#3 (permalink)
GSM MIND Product Manager Join Date: Feb 2003 Location: Your Exclusive Source Posts: 2,881 Member: 20645 Status: Offline Sonork: 100.1579175 Thanks Meter: 635	if u have shsh save then simple put fone in dfu mode and restore with custom file.if u dnt then restore it with 4.1 custome file. br

11-19-2011, 12:13	#4 (permalink)
rana_sab No Life Poster Join Date: Apr 2004 Location: Pakistan Age: 46 Posts: 689 Member: 62911 Status: Offline Thanks Meter: 156	you can downgrade only if you have save your shsh bloobs download latest version of tinyumbrela and click save shsh maybe cydia have your shsh for some versions

11-19-2011, 13:51	#5 (permalink)
laxman kumar No Life Poster Join Date: Mar 2008 Location: VIZAG,A.P,๑۩INDIA& Posts: 1,335 Member: 733702 Status: Offline Sonork: 100.1579452 Thanks Meter: 580	i dont have saved shsh file now my phone in recovery mode.how to solve this problem please help me thanks.

11-21-2011, 11:09	#8 (permalink)
delax Freak Poster Join Date: Apr 2004 Location: in france Age: 49 Posts: 117 Member: 63909 Status: Offline Thanks Meter: 8	4.2.1 Why? you no need to save the file shsh. you flash to version 4.1. you flash one time. itunes will give you an error and the phone will stay in recovery mode. after you pass in DFU mode and you reflash the phone. and you will have the same error in recovery mode. with TinyUmbrella 'exit recovery mode' end

11-21-2011, 15:19	#11 (permalink)
rameshbhaskar Insane Poster Join Date: Nov 2006 Location: vizag Posts: 77 Member: 390893 Status: Offline Thanks Meter: 9	CANT DOWNGRADE 3Gs WITHOUT SHSH I TRY DOWNGRADE FROM 5.01 TO 4.3.3 OK BUT AFTER DOWNGRADE PHONE ONLY IN DFU MODE, CANT FIX IT !!! any solution?

11-21-2011, 15:31	#12 (permalink)
monufasterman Freak Poster Join Date: Jul 2010 Location: UK Posts: 155 Member: 1338781 Status: Offline Thanks Meter: 46	Just downgrade with custome 4.1 and install cydia and update the baseband.