I have a Galaxy Note 8 model SM-N950F/DS which I bought on the beginning of 2018 from Qatar with UAE FW, yesterday I was talking to my wife through a video call on Facebook Messenger for almost 1 hour, noting that I was calling her everyday since last January as I'm residing in another country for the whole day and never experienced the following problem except the heat one around 1 or 2 times only just lasts for a few seconds to a couple of minutes!
The phone was standing on wooden stand from IKEA Belgium inside a back cover from AUTO FOCUS and the phone is coated by mobile outfitters (these information may help in the over heating issue) and while we were talking the screen freeze and there were a couple of colored lines in a small area in the top quarter of the screen.
I took the phone and found it over heated from the back side at the bottom quarter and not responding with freeze screen, I searched the internet and found that I can restart the device by holding the power button with volume down button, it worked and the device restarted and gave me a black screen with blue blinking LED then I did use again the power button with the volume down button and it worked but turned off after requesting the OS login pin code.
After that I switched it ON and did the same for around more 2 times then stopped working!
I found on the web that I have to connect it to a wall charger via the original charging cable for around 10 minutes and then try the power button with the volume down, it worked and gave me the charging screen with the phone OFF and it was reading something in 20s percentage so I left it until it reached around 44% then tried to power ON the device again and the same thing happened, it gave me the "Galaxy Note 8" logo then asked for the OS boot pin and after I entered the pin it gave me "starting phone..." then stopped!
I tried to leave it again for 10 minutes in the charger and do the power button with the volume down and it gave me the charging screen again!
I left it until it reached 70 or 77% (don't remember exactly) and then tried to switch it on to the boot menu using the power button + Bixby button + volume up button and wiped the cache partition, after wiping that partition the phone restarted and never came up again!
None of the above worked again! Not leaving it charging for 10 minutes then try the power key + volume down key! Not the power + Bixby + volume up! I even found someone connected the charger for seconds then removed it then pressed power + Bixby + volume down and his phone worked, it didn't work to me!
Overall this, the phone isn't warming up when it connected to the charger back! so either it has a full battery or it stopped charging for hardware failure!
I don't know what to do, I almost tried everything and I can't imagine how it can have a hardware malfunction because of the over heating and worked several times after that! As I'm an electronics engineer I faced this before in certain embedded systems boards but it has to stop directly if there's a short circuit or certain damage in the circuitry.
I hope if someone can help regarding this!
The phone was standing on wooden stand from IKEA Belgium inside a back cover from AUTO FOCUS and the phone is coated by mobile outfitters (these information may help in the over heating issue) and while we were talking the screen freeze and there were a couple of colored lines in a small area in the top quarter of the screen.
I took the phone and found it over heated from the back side at the bottom quarter and not responding with freeze screen, I searched the internet and found that I can restart the device by holding the power button with volume down button, it worked and the device restarted and gave me a black screen with blue blinking LED then I did use again the power button with the volume down button and it worked but turned off after requesting the OS login pin code.
After that I switched it ON and did the same for around more 2 times then stopped working!
I found on the web that I have to connect it to a wall charger via the original charging cable for around 10 minutes and then try the power button with the volume down, it worked and gave me the charging screen with the phone OFF and it was reading something in 20s percentage so I left it until it reached around 44% then tried to power ON the device again and the same thing happened, it gave me the "Galaxy Note 8" logo then asked for the OS boot pin and after I entered the pin it gave me "starting phone..." then stopped!
I tried to leave it again for 10 minutes in the charger and do the power button with the volume down and it gave me the charging screen again!
I left it until it reached 70 or 77% (don't remember exactly) and then tried to switch it on to the boot menu using the power button + Bixby button + volume up button and wiped the cache partition, after wiping that partition the phone restarted and never came up again!
None of the above worked again! Not leaving it charging for 10 minutes then try the power key + volume down key! Not the power + Bixby + volume up! I even found someone connected the charger for seconds then removed it then pressed power + Bixby + volume down and his phone worked, it didn't work to me!
Overall this, the phone isn't warming up when it connected to the charger back! so either it has a full battery or it stopped charging for hardware failure!
I don't know what to do, I almost tried everything and I can't imagine how it can have a hardware malfunction because of the over heating and worked several times after that! As I'm an electronics engineer I faced this before in certain embedded systems boards but it has to stop directly if there's a short circuit or certain damage in the circuitry.
I hope if someone can help regarding this!
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Now how can I tell there's no hardware issue beside the battery if it's the problem? Should I wait till the service center too or can I confirm with anything else? I'll leave it until reaches 100% and try to switch it ON while the charger plugged in, so it can boot up again easily!
