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Repair information and guides for the iPhone 6 that was released on September 19, 2014. Model Numbers: A1549, A1586, and A1589

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iPhone 6 no service/ searching with or without SIM

So I'm very new in microsoldering and learning stuff just from YouTube/ ifixit forum.

I bought an iPhone 6 (64gb) which didn't charge. Replaced TriStar , turned on, it was charging, everything works.

As this was used iPhone I did factory reset. Since then I can't activate the iPhone , it says servers are down.

It is not showing NO SIM when there is no SIM card, and just keeps searching/ no service. I tried to restore it via iTunes , but after the update I get a message on iTunes that it failed to restore because iTunes was unable to read activation data, and I have to ensure SIM card is correctly in the phone.

I did replace every antenna in the phone, tried different dock with no luck.

I'm stuck here.

ANY help will be more than appreciated. Thank you

Edit:

After couple of hard resets and slight smack against the desk it ask for a SIM card during the activation process, I entered the pin code but it keep saying Unlocking please wait . But it never did.

Tried to change for SIM without lock but it keeps asking me for pin code. Like it read the SIM card for a second and then got stuck on it.

Answered! View the answer I have this problem too

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is the phone unlocked to all networks or on a certain network as the code it is maybe asking for is the unlocking code for the phone to accept any sim

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No this is unlocked for all networks.As I said to me it looks like it recognise the SIM for a nano second at the very beginning of the boot and then it lost connection to it or something. I can't unlock the SIM / can't get service, iTunes does say there is no SIM, I just don't get it .

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I can't dial as I can't activate the phone .

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I have this issue too, here is how did i fix it and what happened after: mine is iphone 7, it all happened one day there is an error message pop up : "Cellular Update Failed - Your iPhone cannot make and receive calls or access cellular data until it has been updated "; i thought iOS update will fix it which it did ( like the original post saying, you need to be extremely careful when factory reset it, as you might facing phone can't be activated, i guess i was lucky, I only tried like 5 times ... somehow it gets activated ) ... same message pop up again after couple days ... so, according to above , i think i can make a logical assumption: it's the hardware issue, the chips in charge of controlling cellular signal/data is having problems ( somehow it lost its firmware at certain condition , i guess might be high temperature or sudden heavy vibration ) ...anyway, that chip is basically broken ...

When iOS has new update, it is your chance to bring the phone back to work... but only for couple days.

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It’s not a broken chip it could be baseband ic needs reballed or the baseband power ic is going bad

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After you have eliminated antennae or network locks as the possible culprit, searching issues on the iPhone 6 are usually related to the baseband IC. The baseband IC is very sensitive, just like the Touch IC's on the 6 Plus; it also suffers from poor quality traces and pads.

Go to your phone’s dialing keypad and dial *#06#. You should see the IMEI displayed.

If the IMEI is not displayed, the Baseband IC has to be reballed and two small copper traces (U1/V1) have to be rebuilt and solidified. This is commonly referred to as the “long jumper” solution. You can check out this answer by @teetopp (Service is "Searching" indefinitely) as it summarizes the issue really well.

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Reballed baseband ic. Now I'm getting error 50. Any ideas about that ?

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You're reball may not have been successful or you may have dislodged or bridged some surrounding components.

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