HTC Desire 516, HTC D516h,HTC D516w Firmware download here
Note : Flash via sdcard
HTC Desire 516, HTC D516h (V2_DUG_JB 4.3 asia india 1.10.708.001)
hereHTC Desire 516, HTC D516w (V2 DCG JB 4.3 asia india 1.04.720.001)
hereHTC Desire 516, HTC D516h (Europe V2_DCG_JB43 1.07.401.001)
here