No Service or Very weak service when Idle

Question

iPhone 3G

iPhoneの第２世代モデル。モデル番号はA1241 / 8 もしくは16 GBの容量/ ブラックもしくはホワイトのプラスチック製背面ケース。修理はオリジナルiPhoneに比べて直接パーツに作業ができます。ドライバー、こじ開けるためのツールと吸盤カップが必要です。

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Adnan Hossain @adnanhossain

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投稿日: 2011年11月22日

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No Service or Very weak service when Idle

I've an unlocked iPhone 3G with GSM connection. My iPhone 3G sometimes gets very good signal but if I put the phone idle for sometimes (half an hour, more or less) the signal keeps loosing and finally shows "No Service". Then if i reboot it, then it gets full signal.

I've also noticed as long as I put the phone on my hand and it gets worm, there is no Signalling issue but when i left it idle, the problem occurs again.

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pollytintop @pollytintop

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投稿日: 2011年11月22日

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I would try updating network settings. Go to general, settings, scroll to bottom... Reset network settings.

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It the second part of your question is an edit then..you may need to change/check your dock connector.Heat causes expansion so whatever is the cause of your problem is a little "shortness" of placement..could be the antenna on the dock, the gold spring in the dock, the gold prong onto the bezel, connector 4. Open the phone using the links under the photo of the phone on the right. You'll see how the dock/antenna should look..compare this to what you've got and see what you need to fix.

pollytintop さんによる2011年11月22日

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It the second part of your question is an edit then..you may need to change/check your dock connector.Heat causes expansion so whatever is the cause of your problem is a little "shortness" of placement..could be the antenna on the dock, the gold spring in the dock, the gold prong onto the bezel, connector 4. Open the phone using the links under the photo of the phone on the right. You'll see how the dock/antenna should look..compare this to what you've got and see what you need to fix. — pollytintop

Adnan Hossain @adnanhossain 評価: 1 1 · Answer 1 · 2011-11-22T06:17:27-07:00

Adnan Hossain @adnanhossain

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投稿日: 2011年11月22日

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thanks for ur response. i'll do it, but i think it will not work coz i've recently changed the "power+volume+head phone jack" ribbon. pls dont think signalling issue is my fault due to changing of the ribbon. Coz signalling issue is older than ribbon issue and if its the problem like u said then it might be fixed. coz i've attached all ribbons and connectors carefully.

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never said it had anything to do with you...the antenna is all contained in the bottom 1/3 of the phone, that's where you need to be troubleshooting. It can be damaged in a drop/fall/bump whatever...

pollytintop さんによる2011年11月22日

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iPhone 3G

No Service or Very weak service when Idle

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