Released on September 19, 2014, this 4.7" screen iPhone is the smaller version of the iPhone 6 Plus.

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Extreme signal fluctuation sim reading again and again


I have this weird problem in my iphone 6

Lately it started todo extreme signal fluctations. The signals goes from full to two then to one and then to no service in the matter of seconds. And then it goes back full strength in the same time of window.

Also i have noticed that when i plug out the sim card. The phone continues to say no sim card installed again and again in the same matter of time. Seems like the phone is reading the sim again and again and making my phone to search for the reception again and again.

Performed things

Rebooted mutliple times.

New firmware installed

Updated network settings.

Resetted the network settings.

Changed the lower charging antina strip.

Changed the antinna on the upper left corner of the logic board.

Tried other network sims.

Answered! View the answer I have this problem too

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Hello! You certainly tried all the things I would have. It seems like your phone is having trouble trying to pick which cell tower to talk to. Doesn't seem to be a defective antenna but most likely the logic board. Which is not repairable or worth replacing.

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Thankyou Hunter kegher for your kind responce.

i am suspecting a defective sim card reader in this handset. its just resets the sim card which prompts it to read the sim again and again.

when I am using it it stays stable. but when the phone goes into standby it just get mad. everything is working like a charm except this nonsense issue.

I just noticed once i replaced another sim card from another network, the phone went into a small 1 second time delayed, into that hello activation screen and then again prompted back into springboard.


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Ahsan Taria will be eternally grateful.
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