The promised update to enable HDMI 2.1 VRR and HFR at 4K resolution is rolling out now to Panasonic JX940, JZ980, JZ1000, JZ1500, and JZ2000.

Full-resolution VRR
Panasonic launched its 2021 TV line-up earlier this year with a VRR mode and a 4K120 mode that both supported "only half the vertical resolution".

The firmware update to fix this limitation is available as of today, Panasonic has confirmed to FlatpanelsHD.

- "Following a commitment it made to gamers earlier this year, Panasonic has today released a firmware update to support 4K2K resolution for both Variable Refresh Rate (VRR) and High Frame Rate (HFR)," said Panasonic. "As a result, Panasonic’s TVs deliver an incredible HDMI2.1 gaming experience coupled with Panasonic’s customary picture quality and accuracy."

It enables both 120fps HFR (High Frame Rate) and VRR (Variable Refresh Rate) to work at 4K resolution (with HDR10) through a new '4K120Hz Bypass Mode' that must be enabled manually by the user. The VRR range is 48-120 Hz.

- "The update adds a new '4K120Hz Bypass Mode' option in the picture settings menu. When this option is activated, it enables 4K2K VRR by bypassing various picture processing (similar to Panasonic’s Pure Direct mode)," the company explained.

Panasonic said that Dolby Vision VRR is be supported up to 60Hz only.

The new firmware (ver. 3.124) unlocks the VRR and HFR capabilities on the following 2021 OLED and LCD models.

Panasonic TVs with HDMI 2.1 VRR & HFR
 FlatpanelsHD