Htc M9 att. I need 7.0 firmware. Help me

Hello guys and xta2clip, I have M9 att and want to flash on 7.0 android. please like me if any one has it. Here is specs of the phone

Reading information...
Using Fastboot mode...
Reading common information
(bootloader) kernel: lk
(bootloader) product: htc_himaulatt
(bootloader) version: 1.0
(bootloader) imei: 357227062324676
(bootloader) version-main: 3.38.502.12
(bootloader) boot-mode: download
(bootloader) version-baseband: 01.01_U11440801_96.01.51207A_F
(bootloader) version-bootloader: 1.0.0.0000
(bootloader) mid: 0PJA11000
(bootloader) cid: CWS__001