Oneplus 7t Only works in fridge Temperature !!! what da hell is wrong with it ?

[3p7]

Hi,
3 days ago my phone glitched and did not start after that ,,, searched the net found the Hold volume +/- and i managed to restart but after phone went to restart mode bug...
found out that i have to install new ROM on phone , sad thing was i didnt Turn the OEM option and the phone was locked ...
so the only option i found was using MSM tool .. i installed like most of the MSM ROMs in XDA (india,global,EU,,) only one of them worked and that one also went to restart mode after i tried
to connect to my google account ...
then a friend told me put it in plastic bag put it in freezer/fridge n see how will it do !!!!!!
that sh... worked ... installed with MSM turned on OEM/Usb debugging start working with it when the phone went warm (body temp) it glitched again...
now im more confused is it a sign of hardware problem ? does any one know what is wrong with this freaking phone ?

 

[ej8989]

Lol you've done a lot more damage to the phone trying to fix it

 

[Aswin08]

Hi,
3 days ago my phone glitched and did not start after that ,,, searched the net found the Hold volume +/- and i managed to restart but after phone went to restart mode bug...
found out that i have to install new ROM on phone , sad thing was i didnt Turn the OEM option and the phone was locked ...
so the only option i found was using MSM tool .. i installed like most of the MSM ROMs in XDA (india,global,EU,,) only one of them worked and that one also went to restart mode after i tried
to connect to my google account ...
then a friend told me put it in plastic bag put it in freezer/fridge n see how will it do !!!!!!
that sh... worked ... installed with MSM turned on OEM/Usb debugging start working with it when the phone went warm (body temp) it glitched again...
now im more confused is it a sign of hardware problem ? does any one know what is wrong with this freaking phone ?

Ofcourse looks like a hardware issue.

Might be completely different issue, but there were cases with Nexus 6P and some LG phones with similar issues in past where they had to either heat the phone or freeze the phone to boot due to a motherboard issue.