The Japanese variant of the HTC One sports a microSD card slot as well as a new IR emitter below the camera.
The Android 4.2 Jelly Bean update for the HTC One is potentially rolling out in two to three weeks time.
After stumbling out the gate due to component shortages, HTC look to ramp up production of its flagship.
Also brings along some BlinkFeed improvements and new Sprint Zone client.
With sales of the device being disappointing, AT&T is said to discontinue the phone shortly.
AT&T has dropped the on-contract price of the HTC First down to just 99 cents.
Boosted by the launch of the One flagship, HTC revenues rose 23% in March and reached NT$19.6 billion.
HTC has removed the HDR microphone from One's specs, will continue to use it until supplies last.
The market in Q1 2013 has not treated HTC gently. Profit is down by 98%, but HTC is still on the black.
HTC is going to shut down the Watch video service in six EU countries by the end of May.
The M4 has a similar design to the HTC One but reportedly has less capable chipset and a 720p display.
HTC's metal clad flagship with 16GB of memory will be available on all three major carriers in Taiwan.
This is in response to the negative feedback for the plasticky build quality of the Galaxy S4.
Nokia's injunction against ST Microelectronics will force HTC to come up with a new mic design.
The Butterfly was the first 1080p phones but never got a proper European launch.
The update is now rolling out to the international model of the HTC One in Europe.
The injunction by the Dutch courts over a proprietary microphone used by Nokia has been lifted.
This will prevent the shipping of the HTC One in the country. Update: The ban has since been lifted.
This version is similar to the 64GB developer edition, except the bootloader is not unlocked.
Pricing and availability for the dual-core mid-ranger remain unknown for now.