iPhone 6 suddenly gone into a boot loop

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taranbasi846

Jun 14, 2018
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I'm not sure where to post this so I decided to use this one.

Out of absolutely nowhere, my iPhone 6 (running iOS11.3.1 non beta) has gone into a boot loop and it keeps turning on, turning off, turning on, turning off with the apple logo. This has just happened so randomly and I have no idea what's caused it do this, it was completely fine and function this morning and afternoon but after 2pm it started happening.

The phone still sometimes goes into the operating system but now it doesn't because the battery is still charged, whenever I could get into iOS after putting my passcode in the operating system just freezes and restarts the phone again and again goes into a bootloop.

I took the passcode out and it's able to go into the desktop, but now it's still stuck in an endless boot loop. I tried the tricks on youtube and nothing worked, I cannot turn the phone off and it keeps going on and off constantly.

Please, I need answers as to why this has suddenly happening. I never ever had this issue before.

Thank you.
 
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ashleyhd2108

Jul 20, 2018
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I know you said you tried all of the boot-loop suggestions but you didnt say which ones. So I'll post some ideas below and tell us if there's anything in there that you haven't tried. That way it can be helped a bit more.

A few things to consider:

Try these things (if you haven't already) to see if anything helps:

Try a hard reset (Home & Power button for 10 secs)
Use a genuine Apple Lightning connector
Use a genuine Apple charging brick and let it charge overnight
Try to connect it to different computers (mac/pc if possible) with an updated iTunes
Put the phone in recovery mode (search DFU Mode). Careful, this can reset your data
Use 3uTools for putting it in and out of Recovery Mode
Use 3uTools to flash the firmware (you can't downgrade)
Check the condition of all the flexes (with magnification)
Disconnect the Front Camera Ribbon from the logic board and reboot your phone
Disconnect the screen assembly completely and see if iTunes will recognize the phone.
Otherwise, you probably have a logic board issue. If you are uncomfortable doing these steps, consider finding a repair shop that does micro-soldering; they can go deeper if the problem is not modular in nature.
 
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taranbasi846

Jun 14, 2018
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Thank you for the suggestions, everything from restoring in DFU mode and flashing the firmware had all failed. I took the phone to the repair shop and they found that the hard drive (NAND) chip was faulty. Would replacing the logic board fix the problem and will touch ID work with the new motherboard if it's connected?

I found one here: https://www.ebay.co.uk/itm/iPhone-6-16gb-Logic-Board-Mainboard-motherboard-Icloud-Activated/332728246797?hash=item4d7826220d%3Ag%3AsdsAAOSwRWRbTgVC&_sacat=0&_nkw=iphone+6+16gb+motherboard&_from=R40&rt=nc&_trksid=p2380057.m570.l1313.TR12.TRC2.A0.H0.Xiphone+6+16gb+motherboar.TRS0
 
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