Please view the screenshot. I got this from Moon+ Reader. My Onyx Boox Note Air is running Firmware Version 2021-03-18_06-36_3.1_ad716f8. My tablet says this is the latest Firmware version. I am using Moon+ Version 4.5.7.
https://1drv.ms/u/s!At93vzQxMpshgtEl...kmOAg?e=S6lN5T