My phone won't turn on, but it still heats

[AkiraTheVixen]

So, here i am, again.

I had a Xperia E3, and it has been abandoned from 2016 to 2018, the charging light was appearing everything was okay.

But then, from 2018 to 2020, i got it again, and the light won't turn on, the phone does not turn on as well, i left it charging about 8/9 hours, and nothing.

Tried Xperia Companion, it says the phone needs to be at 80% or more to repair, and the device is locked, as well.

I only know it's alive because i feel a bit of heat on the top of the phone. Anyone, help?