iphone 3g error 21 cant restore...

**markeeinsik** · 03-28-2011 07:00 PM

Originally Posted by raftom57

hey guy maybe it's too late and sorry for my english but i'm french !
Look around the jack number 4 (dock) on your motherboard if there is no fuse wich are gone. Compare with a motherboard picture of google.
This little fuse are verry fragile and sometimes they are broken or gone.
If it's not the problem I think it's a water damage (i get the same issue with 2 3G).

thank you but im just a newbie and i dont have any idea about the jack number 4, fuse? how does it look kike? can you share some specific picture.. that would greatly help me and also how can i fix this?

water damage? the indicator is red in color.. how can i fix this?

Merci!!

**raftom57** · 03-29-2011 04:10 PM

If the indicator is red then this is for sure water damage. You need to use a toothbrush and "acetone" in order to remove the oxydation of your motherboard, but you need to be verry careful with the toothbrush the little component are verry fragile.

**markeeinsik** · 03-30-2011 08:02 PM

Originally Posted by raftom57

If the indicator is red then this is for sure water damage. You need to use a toothbrush and "acetone" in order to remove the oxydation of your motherboard, but you need to be verry careful with the toothbrush the little component are verry fragile.

yes, the indicator in the dock area is red... can you post some guides with how to clean it? it seems very hard to clean the motherboard since it has some meshed case on it... hmmmm... some pics or viode would greatly help...

does water damage on the dock area cause the iphone to reboot during restore? error 21 or 9...

**markeeinsik** · 04-22-2011 06:32 AM

fixed!!!. thanks to those who helped... IC problem..

**tamerto** · 05-03-2011 05:13 PM

Glad you found a solution.. can you explain a little bit more what and how did you resolve it? Can you show in the picture which chip was the foulty one and how did you repair it. I would really appreciate your help.. ..

**markeeinsik** · 06-05-2011 09:28 PM

Originally Posted by tamerto

Glad you found a solution.. can you explain a little bit more what and how did you resolve it? Can you show in the picture which chip was the foulty one and how did you repair it. I would really appreciate your help.. ..

im sorry but i took it to a cellphone technician... he just told me it was an IC problem.. im sure what he did.. i just paid.. sorry