My iPhone 8 suddenly overheat. Then dead

I had the same problem. I purchased an Apple iPhone

8 in September 2017 and had experienced no major issues until last night (June

18, 2019). I was using my phone when the screen suddenly went black and started

to overheat. I do not mean it was getting warm...I mean it was getting

extremely hot...so hot that it started to burn my fingers and I had to put the

phone down on the table. The unit kept getting increasingly hot; I was

surprised the housing did not melt. I feared that the phone was going to

explode or start a fire. I immediately called Apple Support but no one was

available to take my call (after 10:00 PM) so I let the phone sit overnight to

cool down. First thing in the morning, the phone has finally cooled but it

would not power on. I tried a forced restart but it still would not power on so

I made an appointment to take the phone to the Apple Store to be diagnosed.

The Apple tech performed an integrated current checker but was unable to power the phone up. When I

asked what had caused the malfunction/failure, he stated that he could not

diagnose the problem because it would be “more costly to inspect the internal

components”, but thought it was either a port issue or a defect in the logic board.

Instead, he offered to sell me another phone (could be new, refurbished or a

replacement…throw of the dice) at out-of-warranty costs ($349.00 plus tax). I

would not have expected that a brand new phone would have a catastrophic

failure after 1-1/2 years of normal use.

I noted several other similar complaints/issues raised by other Apple iPhone owners but no adequate

remedies. Obviously Apple is aware of some problems with their phones

overheating. Why should a consumer be responsible for a substantial hardware

failure or manufacturer's defect? I feel cheated.

I think it's time for an android phone!

I also have iPhone 8 that got hot all of a sudden in my pocket (it was not dropped or damaged in any way and I had use it for a call before putting it into my pocket). I was not able to turn it on or off (screen was black). After, going home, I tried multiple chargers/charging cables to see if it was the battery and the iPhone still does not turn on. I tried connecting it to my iTune but it does not show up. I tried a hard reset and no luck. I tried replacing the battery but after I connected the new battery the IC started to heat up and the screen was still off. Tried the power button but no luck. So I believe one component on the board failed or shorted. Is there any thing I can do to recover the data (unfortunately, I did not backup on iTune for the last year)?

If you have tried several lightning cables and it still won't come on, then it's time to make an appointment at an Apple store for more help. Sounds like it needs to be replaced.

~Lyssa

Unfortunately no. If the phone won't boot, the data is gone.

Also, doing any repairs yourself means Apple can refuse to work on the phone or offer you an out-of-warranty replacement device.

~Lyssa