Firmware V1.18 C

[XORadmin]

i feel stupid but for me the update process don't work , i try for almost one hour and it never show ,i did the key combination but it always start directly with the V1.17 ?
(and yes i copy the new downloaded firmware on the Sd card)
is there something i forgot or is there an other way ?
thank you

Double check if the new firmware is in the firmware folder.
Hold the buttons SHIFT+COPY+CURSOR UP (the best already before powering on as you might be too late else)
Power on (or soft reset -> Setup screen -> enable debug -> soft reset, but immediately hold the former buttons)
It must go to the bootloader screen then with either a errormessage (then keep holding the buttons so it will repeat to try) or with the firmware check where you can choose to update then.