iphone 4s problem - GSM-Forum

shaheb_anl · 12-29-2012, 18:03

iphone 4s when me restore by itunes. error 21 show, me search from found soultion, but cannot undearstand, plz tell me clearly , this phone problem appale logo show. this is my frist work this device. plz any one tell me step by step.

GSM-DOCTOR · 12-29-2012, 19:22

Quote:

Originally Posted by shaheb_anl

iphone 4s when me restore by itunes. error 21 show, me search from found soultion, but cannot undearstand, plz tell me clearly , this phone problem appale logo show. this is my frist work this device. plz any one tell me step by step.

Error 21, it means that you are trying to restore custom IPSW using the recovery mode. To fix this issue, you must put your iDevice into DFU mode.

Connect your iDevice to your PC or Mac via USB cable and launch iTunes.
Hold down the Home+Power button for 10 seconds.
After 10 seconds, release the Power button but keep holding the Home button until iTunes detect your iPhone in recovery mode.
Once your iDevice is in DFU mode, you should see nothing on its screen. It should be completely blank.
Even if your iDevice is in DFU mode, iTunes will detect it as a recovery mode device and will display a message as shown in the above screenshot. As soon as you see the above message, restore custom IPSW and hopefully this time you will not get iTunes Error 21.

---------------------------------------------------------
Best Regards
GSM-DOCTOR

 Follow the rules 
i have to learn english

shaheb_anl · 12-29-2012, 19:51

when me enter dfu mode always goes to recovery mode. display show itunes logo

max_cool · 12-29-2012, 20:06

i m also FACING THAt PROBLEM BT DIDNT cusTOMER TOOK HIS hANDSET BT i SAW A & SOLUTION SOMEWHERE TRY ITUNES 10.4 vErsIon & use i reb to put ur iphone in dfu mode & from snowbreeze make a custome firmware also edit host file ,
try this then post

**Sitlay KING** · 12-29-2012, 23:59

Quote:

Originally Posted by shaheb_anl

when me enter dfu mode always goes to recovery mode. display show itunes logo

you didn't doing it in right way
at step 1,press and hold power+home for 10sec's
step 2, release power button but keep holding home button till software detect your phone....
Custom restoration of iOS 4.X is currently off,So put phone pwn DFU and restore to official 4.1

thanks

GSM-DOCTOR · 12-30-2012, 05:05

Quote:

Originally Posted by Sitlay KING

you didn't doing it in right way
at step 1,press and hold power+home for 10sec's
step 2, release power button but keep holding home button till software detect your phone....
Custom restoration of iOS 4.X is currently off,So put phone pwn DFU and restore to official 4.1

thanks

This is 4s and will have to restore it to IOS 6.0.1

---------------------------------------------------------
Best Regards
GSM-DOCTOR

 Follow the rules 
i have to learn english

..::Nokian Care®::.. · 12-30-2012, 05:28

Quote:

Originally Posted by Sitlay KING

you didn't doing it in right way
at step 1,press and hold power+home for 10sec's
step 2, release power button but keep holding home button till software detect your phone....
Custom restoration of iOS 4.X is currently off,So put phone pwn DFU and restore to official 4.1

thanks

Sitly king r u sure that this is the correct way to restore iPhone 4S iOS 4.1

I think ur missing something

Best Regards,
Gsm Kolkata

:-Think Different-:

shaheb_anl · 12-30-2012, 06:24

plz give me correct soultion i am confused

michaellzzy · 12-30-2012, 06:53

Your expensive smartphone may be the best gadget you have, but some people say it does not come without glitches. Problems with the iPhone 4 or 4S are not uncommon.
std tests

GSM-DOCTOR · 12-30-2012, 06:54

Quote:

Originally Posted by shaheb_anl

plz give me correct soultion i am confused

Connect your iphone in DFU mode

And restore to IOS 6.0.1 stock using itune

Thats all

---------------------------------------------------------
Best Regards
GSM-DOCTOR

 Follow the rules 
i have to learn english

michaellzzy · 12-30-2012, 07:01

Lately iPhone problems have been more prevalent, especially regarding the headphones and headphone jack. These problems are being reported more and more, not only from iPhone users but across the Apple board.std tests

GSM-DOCTOR · 12-30-2012, 08:04

Quote:

Originally Posted by mulinjohe

when me enter dfu mode always goes to recovery mode.

you are doing it wrong

Plug USB to phone and PC

Press and hold the both keys
Power and home until the screen goes black.

On black screen keep pressed both keys for 5 to 6 seconds then release power key

Keep holding the home key until iTune detect it .

Thats all

---------------------------------------------------------
Best Regards
GSM-DOCTOR

 Follow the rules 
i have to learn english

shaheb_anl · 12-30-2012, 09:09

after try now go to dfu mode but now error 1602. i restart my pc, i change pc but same show error 1602. plz help me

GSM-DOCTOR · 12-30-2012, 09:22

Quote:

Originally Posted by shaheb_anl

after try now go to dfu mode but now error 1602. i restart my pc, i change pc but same show error 1602. plz help me

which version of IOS you want to install????

---------------------------------------------------------
Best Regards
GSM-DOCTOR

 Follow the rules 
i have to learn english

**Sitlay KING** · 12-30-2012, 09:50

Quote:

Originally Posted by GSM-DOCTOR

This is 4s and will have to restore it to IOS 6.0.1

---------------------------------------------------------
Best Regards
GSM-DOCTOR

 Follow the rules 
i have to learn english

Quote:

Originally Posted by ..::Nokian Care®::..

Sitly king r u sure that this is the correct way to restore iPhone 4S iOS 4.1

I think ur missing something

Best Regards,
Gsm Kolkata

:-Think Different-:

Lol,
I was aslep

Thanks guys for pointing it out you are life savors

If you see the time of post you will get idea why and how i did mistake

Quote:

Originally Posted by shaheb_anl

plz give me correct soultion i am confused

No need to get confused,I"m sorry i wrote a wrong line.

Quote:

Originally Posted by Sitlay KING

you didn't doing it in right way
at step 1,press and hold power+home for 10sec's
step 2, release power button but keep holding home button till window detect your phone....
thanks

This is what i was supose to wrote

Thanks again

Quote:

Originally Posted by shaheb_anl

after try now go to dfu mode but now error 1602. i restart my pc, i change pc but same show error 1602. plz help me

Try to restore on window7 using redsn0w
It will probably avoid host error"s

12-29-2012, 18:03	#1 (permalink)
shaheb_anl Cheater -Don't Deal with him- Join Date: Nov 2007 Location: In the web Age: 37 Posts: 1,594 Member: 622382 Status: Offline Thanks Meter: 201	iphone 4s problem iphone 4s when me restore by itunes. error 21 show, me search from found soultion, but cannot undearstand, plz tell me clearly , this phone problem appale logo show. this is my frist work this device. plz any one tell me step by step.

12-29-2012, 19:51	#3 (permalink)
shaheb_anl Cheater -Don't Deal with him- Join Date: Nov 2007 Location: In the web Age: 37 Posts: 1,594 Member: 622382 Status: Offline Thanks Meter: 201	when me enter dfu mode always goes to recovery mode. display show itunes logo

12-29-2012, 20:06	#4 (permalink)
max_cool No Life Poster Join Date: Mar 2008 Posts: 653 Member: 727810 Status: Offline Sonork: 100.1627301 Thanks Meter: 167	i m also FACING THAt PROBLEM BT DIDNT cusTOMER TOOK HIS hANDSET BT i SAW A & SOLUTION SOMEWHERE TRY ITUNES 10.4 vErsIon & use i reb to put ur iphone in dfu mode & from snowbreeze make a custome firmware also edit host file , try this then post

12-30-2012, 06:24	#8 (permalink)
shaheb_anl Cheater -Don't Deal with him- Join Date: Nov 2007 Location: In the web Age: 37 Posts: 1,594 Member: 622382 Status: Offline Thanks Meter: 201	plz give me correct soultion i am confused

12-30-2012, 06:53	#9 (permalink)
michaellzzy Junior Member Join Date: Dec 2012 Posts: 6 Member: 1860440 Status: Offline Thanks Meter: 0	Your expensive smartphone may be the best gadget you have, but some people say it does not come without glitches. Problems with the iPhone 4 or 4S are not uncommon. std tests

12-30-2012, 07:01	#11 (permalink)
michaellzzy Junior Member Join Date: Dec 2012 Posts: 6 Member: 1860440 Status: Offline Thanks Meter: 0	Lately iPhone problems have been more prevalent, especially regarding the headphones and headphone jack. These problems are being reported more and more, not only from iPhone users but across the Apple board.std tests

12-30-2012, 09:09	#13 (permalink)
shaheb_anl Cheater -Don't Deal with him- Join Date: Nov 2007 Location: In the web Age: 37 Posts: 1,594 Member: 622382 Status: Offline Thanks Meter: 201	after try now go to dfu mode but now error 1602. i restart my pc, i change pc but same show error 1602. plz help me