iPHONE 3GS/G How to Fix error "20" - GSM-Forum

jusmejose · 08-03-2011, 23:32

Here is my method to fix error code "20" when downgrading your iphone 3GS from 4.3.5 or ur iphone 3g

1. Download Fix Recovery Here The Firmware Umbrella - TinyUmbrella
2. Download zlib1.dll from Here zlib1.dll free download - DLL-files.com
3. If u are fixing iphone 3gs open fixrecovery43 then put ur iphone 3gs in DFU Mode and let the command window do everything for u "NOTE" *If u are fixing iphone 3g open fixrecovery421 then put ur iphone in DFU Mode*
4.If u did everything correctly ur iphone 3g/gs should be in recovery mode "Its normal"
5.Then use iREB RC4 From here iH8sn0w.com | Jailbreak your iPod touches and iPhones
6. Restore to 4.1 then u gonna get error "1015" download Tinyumbrella to kick out of recovery mode The Firmware Umbrella - TinyUmbrella
7. Finally just jailbreak ur iphone and unlock if u want!

**THIS IS ONLY FOR iPHONE 3GS/G**
**ONCE AGAIN I DON'T HOLD RESPONSIBLE FOR ANYTHING, U SHOULD BE OK IF U FOLLOW MY STEPS I HAVE DONE ALREADY MORE THEN 80 PCS WITH THIS PROBLEM**

Man in sea · 08-04-2011, 01:25

thank you thank you
Boss

optus · 08-05-2011, 04:24

to fix it go to Iphone Error Collection With Solution » Unlock iPhone

Littlemaster · 08-05-2011, 12:30

Here is another usefull site link Mobile Phone Repairing Services - Com Tech Mobiles

angelluisg · 08-09-2011, 06:14

you are the best,,, works

jener_20 · 08-09-2011, 12:56

just use another computer for error 20..

John1235 · 08-10-2011, 03:28

I don't get it. My iphone is already in DFU, so how do start it up normally for being able to open fixrecovery43 before the iphone is in DFU?
I can't get out of it.

Thanks

omchocolate · 08-10-2011, 04:15

Quote:

Originally Posted by John1235

I don't get it. My iphone is already in DFU, so how do start it up normally for being able to open fixrecovery43 before the iphone is in DFU?
I can't get out of it.

Thanks

Brother if your iphone is 3gs stock in dfu mode just clear your host file from c/windos/system32/driver/etc. then open itunes chose stock firmware 4.1 then restore if you get at last 1015 error just use tinnyumbrela to exit recovery mode.i have done many more iphone like this....
br......

John1235 · 08-10-2011, 04:57

Quote:

Originally Posted by omchocolate

Brother if your iphone is 3gs stock in dfu mode just clear your host file from c/windos/system32/driver/etc. then open itunes chose stock firmware 4.1 then restore if you get at last 1015 error just use tinnyumbrela to exit recovery mode.i have done many more iphone like this....
br......

thanks bro!

i'm now at step 5
5.Then use iREB RC4 From here iH8sn0w.com | Jailbreak your iPod touches and iPhones

What should I do with Ireb? I see different options.

John1235 · 08-10-2011, 05:15

Okay i'm screwed...something went wrong with fixrecovery43
"No succesfull firmware download after 60000ms!! Giving up.."

diva2812 · 08-10-2011, 05:53

use snowbrezee ,,, tested

John1235 · 08-10-2011, 05:57

I got it, thanks bro's

jusmejose · 08-15-2011, 19:26

again u didnt read my TUT.... u git everything good!!
just open now iREB and phone its gonna put in DFU mode then just restore to 4.1 ...

Quote:

Originally Posted by John1235

Okay i'm screwed...something went wrong with fixrecovery43
"No succesfull firmware download after 60000ms!! Giving up.."

jusmejose · 08-15-2011, 19:28

Dont SPAM with other websites here!... if u have solution post them here dont post ur lame website!! its easy to fix error "20"

stgs · 08-16-2011, 01:58

thanks bro i am succesful to fix error 20 withe this metode today withe 3gs

08-03-2011, 23:32	#1 (permalink)
jusmejose No Life Poster Join Date: Jul 2009 Location: Los Angeles, CA Posts: 1,923 Member: 1081371 Status: Offline Thanks Meter: 720	iPHONE 3GS/G How to Fix error "20" Here is my method to fix error code "20" when downgrading your iphone 3GS from 4.3.5 or ur iphone 3g 1. Download Fix Recovery Here The Firmware Umbrella - TinyUmbrella 2. Download zlib1.dll from Here zlib1.dll free download - DLL-files.com 3. If u are fixing iphone 3gs open fixrecovery43 then put ur iphone 3gs in DFU Mode and let the command window do everything for u "NOTE" If u are fixing iphone 3g open fixrecovery421 then put ur iphone in DFU Mode 4.If u did everything correctly ur iphone 3g/gs should be in recovery mode "Its normal" 5.Then use iREB RC4 From here iH8sn0w.com \| Jailbreak your iPod touches and iPhones 6. Restore to 4.1 then u gonna get error "1015" download Tinyumbrella to kick out of recovery mode The Firmware Umbrella - TinyUmbrella 7. Finally just jailbreak ur iphone and unlock if u want! THIS IS ONLY FOR iPHONE 3GS/G ONCE AGAIN I DON'T HOLD RESPONSIBLE FOR ANYTHING, U SHOULD BE OK IF U FOLLOW MY STEPS I HAVE DONE ALREADY MORE THEN 80 PCS WITH THIS PROBLEM Last edited by jusmejose; 08-03-2011 at 23:39.

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08-04-2011, 01:25	#2 (permalink)
Man in sea Junior Member Join Date: Jul 2011 Posts: 20 Member: 1616830 Status: Offline Thanks Meter: 7	thank you thank you Boss

08-05-2011, 04:24	#3 (permalink)
optus Freak Poster Join Date: Mar 2011 Posts: 268 Member: 1528549 Status: Offline Thanks Meter: 32	to fix it go to Iphone Error Collection With Solution » Unlock iPhone

08-05-2011, 12:30	#4 (permalink)
Littlemaster Freak Poster Join Date: Jan 2006 Posts: 408 Member: 217946 Status: Offline Thanks Meter: 28	Here is another usefull site link Mobile Phone Repairing Services - Com Tech Mobiles

08-09-2011, 06:14	#5 (permalink)
angelluisg Junior Member Join Date: Jul 2009 Posts: 9 Member: 1076828 Status: Offline Thanks Meter: 0	you are the best,,, works

08-09-2011, 12:56	#6 (permalink)
jener_20 Freak Poster Join Date: Dec 2010 Posts: 122 Member: 1458558 Status: Offline Thanks Meter: 14	just use another computer for error 20..

08-10-2011, 03:28	#7 (permalink)
John1235 Junior Member Join Date: Aug 2011 Posts: 32 Member: 1632143 Status: Offline Thanks Meter: 2	I don't get it. My iphone is already in DFU, so how do start it up normally for being able to open fixrecovery43 before the iphone is in DFU? I can't get out of it. Thanks

08-10-2011, 05:15	#10 (permalink)
John1235 Junior Member Join Date: Aug 2011 Posts: 32 Member: 1632143 Status: Offline Thanks Meter: 2	Okay i'm screwed...something went wrong with fixrecovery43 "No succesfull firmware download after 60000ms!! Giving up.."

08-10-2011, 05:53	#11 (permalink)
diva2812 No Life Poster Join Date: Oct 2007 Posts: 687 Member: 621334 Status: Offline Thanks Meter: 38	use snowbrezee ,,, tested

08-10-2011, 05:57	#12 (permalink)
John1235 Junior Member Join Date: Aug 2011 Posts: 32 Member: 1632143 Status: Offline Thanks Meter: 2	I got it, thanks bro's

08-15-2011, 19:28	#14 (permalink)
jusmejose No Life Poster Join Date: Jul 2009 Location: Los Angeles, CA Posts: 1,923 Member: 1081371 Status: Offline Thanks Meter: 720	Dont SPAM with other websites here!... if u have solution post them here dont post ur lame website!! its easy to fix error "20"

08-16-2011, 01:58	#15 (permalink)
stgs Freak Poster Join Date: Feb 2009 Location: algeria Posts: 360 Member: 982456 Status: Offline Thanks Meter: 20	thanks bro i am succesful to fix error 20 withe this metode today withe 3gs