This firmware is WITHOUT the development warning overlay:
development purposes only
Do not distribute outside of HTC
without HTC's written permission.
Failure to comply may
lead to legal action.
This is the custom version firmware with modified HBOOT to remove the red warning.
*** This will NOT wipe your SD partition ***
But please make a back up before flashing for safety.
Requirements for flashing: S-OFF
If you do not know how to flash a Firmware or it is your first time, follow Vomer's Guide for detailed instructions.
If you do know what you are doing, here is a reminder of the commands:
adb reboot bootloader fastboot oem rebootRUU fastboot flash zip C:\adb\Firmware_File_Name.zip fastboot flash zip C:\adb\Firmware_File_Name.zip (repeat) fastboot reboot
HTC M9 Firmware without Red Warning
* I am not adding any new FW for M7. If there is a new release and you can provide the custom-FW I can modify the red warning out for you per request and post it here.
fw_7.19.401.51 can be found here
@vomer for his amazing guide.