The Google Pixel 6a uses a 6.1-inch OLED display that supports a 60Hz refresh rate, but there is a way to unlock the 90Hz mode.
Twitter user TheLunarixus has created a mod that unlocks 90Hz mode on Pixel 6a phones, and they’re working on a custom ROM that will make it easy for any Pixel 6a owner to unlock the increased refresh rate.
The test found that the Pixel 6a can indeed unlock the 90Hz mode through this MOD. It’s unclear if the Pixel 6a’s display panel actually supports 90Hz, or if it’s overclocked to get a faster refresh rate.
To unlock 90Hz mode on the Google Pixel 6a, users need to enable debug mode and OEM unlocking in settings, then load the bootloader, manually flash the Android 13 beta, disable parts and check to flash the modified vendor_boot mirror.
It should be noted that some users found that the mobile phone had a green screen problem after applying this MOD. Developer Kuba Wojciechowski has warned that Samsung may not rate the Pixel 6a’s display at 90Hz, which is likely just overclocking.