mobile

haii ,i was updating my HTC one m8 using HTC sync from system .as no sufficient battery i removed in the middle n again i connected and started updating so dont know what happened my phone got strucked n displyed
****system software: official**
locked
....
....
so on
after some time phone got total black screen
when i kept charging it is showing
android system recovery <3e>
LRX22C release -keys
volume up/down to move highlights:
enter button to select.

reboot system now
apply from sd card
wipe data/factory reset
wipe cache partition
reboot to bootloader
power down
view recovery logs
apply from phone storage

please help me out what to do now n how to get back without loosing any data???