Who offers a service to replace firmware on an HTC 1 802W?

[AC Question]

who offer a service to replace firmware on an HTC 1 802W?

I purchased an unlocked HTC one M7 dual sim but have discovered that the firmware is not the HTC standard but a Chinese version called Soul Tweaks. Is there a simple way to replace the firmware with the HTC version or does someone offer that service? I'm not a power user.