[TM-2T] Installing new appollo image

[Kefalonanman]

hi hope you can help, i am trying to flash my tm2t with apollo i have done this numerous times before i have tried apollo 3 / 7 / 8 and two usb sticks formatted to fat32 and then copy update folder across also tried the usb on the back of box but cannot get it to read the usb and flash

can you advise please if i factory reset will it work but will i loose my cam info then