"Обновить прошивку возможности нет."
Everything is possible. Can you send private message with time + timezone - during which you could setup remote desktop connection (teamviewer/anydesk) -> if you have device remotely @ your place -> we can sort it out and update for you latest FW version like 03.18.20 and then everything should match according to user manual.
Also i went through our history - there was no such version for FMB family devices as 01.21.xx.
01.xx.xx versions were in such range: [01.00.00 - 01.00.32], [01.01.00.Rev.00 - 01.01.01.Rev.06], [01.03.00.Rev.00 - 01.03.14.Rev.00] -> afterwards
[02.00.00 - 02.03.03] -> afterwards: 03.xx.xx -> which is latest ongoing major version. I.e. current latest (official) is 03.18.20 +-.
Are you sure you have FMB family device?