iPhone4S是第五代iPhone。网络制式为GSM/CDMA ,存储容量有8GB、16GB、32GB、64GB可选,机身颜色有黑色、白色可选。维修iPhone4S是容易的,需要耐心,用到的工具有螺丝刀、撬棒等。

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Why is my iPhone 4s losing cell signal intermittently?

I bought a 4s from someone on a local buy sell site and the phone has this issue....

The cell signal shows full bars for most of the time, but periodically it loses bars (dots) and then loses signal altogether and shows Searching..... after a few minutes 2 to 3, it will find its carrier again and go back to full bars. I am in a great cell area so its not tha,t my other phone carries full bars all the time.

So far I have.

tried the date time manual adjustment.

unseated the battery connection and made sure the antenna is secure. It was.

Looked at the logic board with a magnifying glass and can see nothing out of place. (compared it too a dead board I have)

finally I replaced the antenna speaker component with a new one.

Same problem.

If I turn off the radio with the airplane setting while I have signal and leave it off for a couple of minutes, it will go to Searching and stay that way for as long as 10 minutes until it grabs a bar or two.

Any ideas of what I can try next?

thanks in advance!

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Turn you 3G off this can happen in some iPhones when 3G is enabled and when it's turned off signal is perfect.. It points to a fault on the motherboard but I'm not sure of a fix for it


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just tried that and I still have the issue ( thanks for helping though.


replace baseband chip


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I've never had this problem with my iPhone 4s so I don't really know much about this. Try taking it to the Apple Store and see what they can do. If they say to you that there's nothing they can do, you'll have to leave the iPhone switched off for a couple of days (maybe a week) then turn it back on to see if it's made a difference. If the result is still the same, there might be a fault in your iPhone that you haven't noticed. Maybe try resetting your Network settings for another result. If this doesn't work, there's not much you can do.


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i have problem is

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i lose so how cani try open my account ?

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can you send cod is this nuber okay

this my new nuber 09972221293

thank you So much


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