iPhone 4s Error 1 U18_RF Question Please Help! - GSM-Forum

iPh0neMan995 · 12-19-2014, 01:52

Hey everyone I have an iPhone 4S that keeps getting an error 1. It had "searching" before and when i restored in itunes it gets an error 1 about 60% in when its almost done. I have been looking around and doing some research, and came across these:

Now I want to take this step by step, and I also seen people saying that U18_RF u can jump pin 2 and pin 4 and that should work. So I want to try to start with that and see if it works before I try the solution above. I found the diagram:

Now I dont know which pins are 2 and 4 on the mobo? Can someone help me on that? Here is my motherboard pic:

As you can see, I already removed U18_RF, and see the copper pads (6 of them). I used my multimeter to see which one is GND and found the top right one to be. Can someone please tell me which ones to make a jumper (bridge?) Thank you.

HDccam · 12-24-2014, 11:06

Don't jumper, just replace the IC. Then your error 1 is fixed

Udini · 01-06-2015, 18:39

Quote:

Originally Posted by iPh0neMan995

Hey everyone I have an iPhone 4S that keeps getting an error 1................................................

here is you're solution.

i got same error 1 when trying to restore an iphone 4S, and after a carefully look, i discovered that U18_RF was totaly removed by someone else from the board.
after making jumper, it worked flawless.

techjhul · 01-28-2015, 09:08

Is anyone here have an any idea..coz i have here Iphone 4s same problem as post at the top.then i'm done making that jumper said but same problem "occured error 1" so i proceed to the second step about U18_RF and make again second jumper..when done of jumpering that said parts..The problem is still appear when i try to restore the iphone 4s..
So of now my phone have two jumpers on board...nothing change..is anyone here can give me an idea..Thank you.

Udini · 03-13-2015, 12:00

Quote:

Originally Posted by techjhul

Is anyone here have an any idea..coz i have here Iphone 4s same problem as post at the top.then i'm done making that jumper said but same problem "occured error 1" so i proceed to the second step about U18_RF and make again second jumper..when done of jumpering that said parts..The problem is still appear when i try to restore the iphone 4s..
So of now my phone have two jumpers on board...nothing change..is anyone here can give me an idea..Thank you.

you should start 1st with U18_RF, and not with the other one.

techjhul · 04-07-2015, 07:30

Quote:

Originally Posted by Udini

you should start 1st with U18_RF, and not with the other one.

sorry for late reply on the question sir,so meaning there is no hope that can this fix?cause i apply this 2 jumper on the unit...but same problem error 1.

bes1de · 05-21-2015, 15:55

techjhul
try replase U18_RF with U20_RF, after flash unit and replase again

benniche farid · 08-13-2015, 18:21

holla

i have same error with my iphone 4 i tray all software sol but no luck :/

i want to know if this method work with my iphone 4 !

plz help me ...

12-19-2014, 01:52	#1 (permalink)
iPh0neMan995 Junior Member Join Date: Dec 2014 Posts: 3 Member: 2313176 Status: Offline Thanks Meter: 0	iPhone 4s Error 1 U18_RF Question Please Help! Hey everyone I have an iPhone 4S that keeps getting an error 1. It had "searching" before and when i restored in itunes it gets an error 1 about 60% in when its almost done. I have been looking around and doing some research, and came across these: Now I want to take this step by step, and I also seen people saying that U18_RF u can jump pin 2 and pin 4 and that should work. So I want to try to start with that and see if it works before I try the solution above. I found the diagram: Now I dont know which pins are 2 and 4 on the mobo? Can someone help me on that? Here is my motherboard pic: As you can see, I already removed U18_RF, and see the copper pads (6 of them). I used my multimeter to see which one is GND and found the top right one to be. Can someone please tell me which ones to make a jumper (bridge?) Thank you.

12-24-2014, 11:06	#2 (permalink)
HDccam No Life Poster Join Date: Mar 2012 Location: Amsterdam, Netherlands Posts: 754 Member: 1732818 Status: Offline Thanks Meter: 532	Don't jumper, just replace the IC. Then your error 1 is fixed

01-28-2015, 09:08	#4 (permalink)
techjhul Insane Poster Join Date: Oct 2013 Posts: 64 Member: 2056113 Status: Offline Thanks Meter: 20	Is anyone here have an any idea..coz i have here Iphone 4s same problem as post at the top.then i'm done making that jumper said but same problem "occured error 1" so i proceed to the second step about U18_RF and make again second jumper..when done of jumpering that said parts..The problem is still appear when i try to restore the iphone 4s.. So of now my phone have two jumpers on board...nothing change..is anyone here can give me an idea..Thank you.

05-21-2015, 15:55	#7 (permalink)
bes1de Junior Member Join Date: Jul 2007 Location: Ukraine Posts: 31 Member: 554917 Status: Offline Thanks Meter: 1	techjhul try replase U18_RF with U20_RF, after flash unit and replase again

08-13-2015, 18:21	#8 (permalink)
benniche farid Insane Poster Join Date: Aug 2010 Age: 30 Posts: 96 Member: 1377622 Status: Offline Thanks Meter: 5	holla i have same error with my iphone 4 i tray all software sol but no luck :/ i want to know if this method work with my iphone 4 ! plz help me ...