No Service when 3G is enabled.

Question

iPhone 3GS

처리 속도가 빨라진 iPhone 3G 개선 버전. 이 기기의 수리는 3G와 유사하며 간단한 스크루드라이버, 비집는 도구가 필요합니다. 모델 A1303 / 16GB 또는 32GB 용량 / 검정 또는 흰색 플라스틱 뒷면.

20 질문 전체 보기 | 13 부품 둘러보기

Ace Spizzer @acespizzer

평판: 13

게시됨: 2013년 2월 25일

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No Service when 3G is enabled.

Dear iFixit,

I am having a problem for a bit with my old 3GS: I get very poor connection when 3G is enabled. Basically, I have some network for a few minutes (10-15, it varies) then switches to "searching" and then "No Network". I usually don't get any network back.

It is interesting to note that when 3G is off, I have absolutely no problem getting a stable GPRS/EDGE connection.

I am currently running iOS v6.1, but I have this problem for ages.

Therefore my question is: Is there a different antenna for 3G and EDGE/GRPS? Would you recommend changing it?

Regards,

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jurica @alpharepair 평판: 25 1 · Answer 1 · 2013-03-04T09:53:28-07:00

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jurica @alpharepair

평판: 25

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게시됨: 2013년 3월 4일

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Hello,first off all sorry for bad eng. but ill try to help you

So i saw a lot users od iphone have problem with iphone 3g/gs. No service on 3g network or when its off,i have that phone also and i have solution that worked 100%

problem is on signas switcher that is located on this picture you can see them: lower part of iphone.

http://i87.servimg.com/u/f87/13/27/39/62...

So here it is,take a hair dryer,a turn it on,heat this chips for about 10 sec,then whit your fingers push chips on logicboard,get iphone back on,go to settings-reset then reset network settings,and its workig :)

if its now working try to heat and push chips again

please share this solution becouse i cant see any other solution for this problem

and please correct my words if there is something wrong