My LG F6M500 won't turn on?

[AC Question]

I was using my phone in class and all of a sudden some popup came on saying to hold the power button to turn it off, and two seconds later it turned off. I didn't even do anything. I tried to charge it, i held down the power button with volume/home/ etc. I also tried taking out the battery but when i put it back in it starts to turn on but then after the LG symbol it turns back off, but if i try this while connected to the charger it won't work, I don't know what else to do, my sister gave me this phone because she got a new one and it was working for a good 5 months until now. It's not that old a phone either.

 

[dpham00]

I would try to do a factory data reset in the bootloader if possible

 

[x4rocketship4x]

i tried that it didn't work sadly