that's right
there are solution in the manual
thank you a lot
I want to manually upgrade the firmware
Download this
https://img.sharkrf.com/api/v1/images/60c6faa8a64b75615589cec6/blob
file to your computer
Turn off the openSPOT2 by unplugging the USB cable
Press and hold the button
Plug the USB cable into the computer while holding the button pressed
Keep the button pressed for 1-2 seconds after the USB cable has been plugged in, then release it
The LED will become yellow and a flash drive will appear on your computer called BOOTLOADER
Copy the previously downloaded file to this BOOTLOADER drive
The LED will start blinking alternating red/green for about 2-3 minutes. After that it should be steady green
The openSPOT2 will automatically reboot in 1 minute after the LED became steady green, but now you can unplug it safely and then replug it to power on the openSPOT2 and continue using it (if the Wi-Fi module firmware is also upgraded then the LED will flash red/yellow for about 2-3 minutes)