HTC India — phone issues

Address:	302017
Website:	www.htc.com/in

I have htc desire 626g +, now it's not working, .
it have mother board problem but i want backup of my photos and
other relevant data.
it's very urgent for me.
but i m not able to take the backup.
how can i come out to this problem, its very hard to get the backup of my photos and other data.
so please give me any suggestion
how can i resolve the backup problem.

Thanking You
Abhilasha