[Stever123]

Hi, I am trying to find the correct firmware image for my old HTC Desire HD A9191 and I would really appreciate it if someone could please tell me where I can find the firmware. I know it's an old phone but it's still in excellent condition and would be nice to get it working again.
Many thanks,
Steve.

[EMMANUS]

Check here https://mega.nz/#F!p4sSiA5a!7Wy_O8Y9LlKha9R_cqRGXw

But I think it is RUU_Ace_Sense30_S_hTC_Asia_India_3.13.720.2_Radio_ 12.65.60.29_26.14.04.28_M_release_227634_signed located here
*****

You should hold volume up and power up the phone, post the options and details you see.

[hovatek]

Hi, I am trying to find the correct firmware image for my old HTC Desire HD A9191 and I would really appreciate it if someone could please tell me where I can find the firmware. I know it's an old phone but it's still in excellent condition and would be nice to get it working again.
Many thanks,
Steve.

Refer to https://www.hovatek.com/forum/thread-11854.html
That'll explain how to know what RUU you're looking for