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iPhone 3G是第二代iPhone。型号A1241，有8或16 GB容量，和炫酷的黑色或洁白的白色塑料背面。修复比第一款iPhone更简单。需要螺丝刀、撬撬工具和吸尘工具。

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No Service iPhone 3G issue

Hi,

I am seeing No Service on my iPhone 3G for past few days.

This is what i did till now-

1. Erase all data on iphone.

2. Reinstall IS 3.0

3. Jailbreak and Unlock it with Redsn0w and ultrasn0w.

5. Reset network settings

6. Airplane mode ON > OFF several times

7. Disable 3G

8. Reboot several times

9. Tested SIM in another phone and another iPhone, works OK

10. Modem Firmware- 04.26.08

Sometimes i see mu providers name for few second with zero bar and then again No Service.

Please help.

Thanks,

Harinder

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You did a lot. Did you pay your bill?

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had the iphone a fluid damage or was it dropped ?

the problem is most likely a connection problem

i would first look at the golden spring and the whole lower quarter of the logic board (everything whats on the left side of the picture)

Block Image

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No, it was not dropped or has a fluid damga. It was working and next morning this problem .

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very strange. did you also try a different sim in your phone ???

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Hi everyone,i thinck that maybe help http://img189.imageshack.us/img189/4586/...

Where is the squere you must fractute line.

The other way is maybe this http://www.reperatorium.pl/Alle/frct.jpg

I try the second way and it works.Wish succes

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Pic of broken little 'capacitor' on mainboard:

http://hoogvliegers.airpool.nl/downloads...

Similar to that one:

http://img189.imageshack.us/img189/4586/...

I don't understand the second pic. Didn't you have to cut the line there, too?

http://www.reperatorium.pl/Alle/frct.jpg

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Wow! Ive had this issue for 3 weeks since replacing my lcd and screen, all i did was removed the "do not remove" stick and screw, pushed the little copper piece up a bit. Turned the phone back on and boom full signal and working fine!

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The WIFI antenna is in the upper part of the phone - the Cellular antenna is at the back of the dock connector assembly! They have nothing to do with each other.

I found a great tutorial on the net. Maybe it will help you!

"How I recovered my iPhone's lost GSM signal!"

http://www.mauron.net/iphonerepair/

---

And I found that suggestion on CNET:

"ok here we go the problem is with a small piece of copper sticking out from the mainboard of the iphone 3g believe it or not, not the antenna not a blown chip a small lick of copper which has to rest snugly on the metal bezel ring surrounding the phone, that's it!! i know what you're thinking that is not possible right your do no remove screw is still in place your phone was never open before, put away all your cynicism, look carefully at the small piece of copper if just a quarter is on the metal bezel that is not enough a full half has to rest snugly to the bezel you can either solder an extension or remove the do not remove screw altogether (i had to remove mine) it now has full 5 bars no intermittent hide and seek with the signal, lol."

http://reviews.cnet.com/8618-19512_7-101...

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replace the sim reader in the board.

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NO phone services serial no: 87215500EDG CASE ID 720627721

MODEL MC64OLL IOS 6.16

IME 01 299 300 791057 5

ICC ID 8901 41042540 1160 7234

FCC ID BCGA1303AF6

IPOD PHONE (205)492-5977

TAG C2B4FDA8F9F87OCD4C3C20E753DC36A3FFDB2F

WARRAND CARD 15G22QOO3161

WIRELESS 70#101028808883212375

CHOME IP 72.46.235.29

DOMAIN KATH-E6C9D289B PASS 808 COMMON OC 2862

MODEN ACCESS 3888448781

NETWORK NUMBER 4416OB43 NAME LXBMLOG.CER

SSID NTUSER.INI

HOME PHONE 205 5902516 ACCOUNT 128909486-6

ON LINE REGISTRATION Z9826775 CPU VENDOR 8086 CODE

756e6547-49656e69-6c65746e

serial number 1XGA221S312

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Harinder 将永远感激不已
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