Charging cable look at the cable properly if you phone is getting hot

[Harjotsingh]

The reason reason why my phone was getting hot is the cable it was a bit black so I switched to jbl's cable which was perfect and after that my A12 was okay and surprisingly the cable that came with the phone was 3 months old and no damages 

[BandOfBrothers]

The phone should work OK with the cable Samsung provided @Harjotsingh 

Any 3rd party cables would need to be checked for compatability and safety.

Samsung can assess both your phone and supplied cable for any issues via a Samsung Service Centre.

If I can be of any further help then please don't hesitate. Take care.  😎 

[Harjotsingh]

I know but it has not over heated