Moto g4 powered off suddenly and won't switch on (show moto logo then turn off)

[VictorMiles]

i was playing song and my phone switch off suddenly and when i tried to turn it on it showed moto logo and turned off again
i can go into boot loader and phone was not rooted
is there any way to backup my personal data from phone memory or to fix it

 

[tomongo]

I'd try wiping the cache partition in recovery mode.