My steps for update firmware (image is clickable):
1) Connect to module and select "Update"

2) There is we see actual firmware on module

3) I want newest firmware, leave checkbox enable.

4) XCTU trying find the active bootloader on module.

5) it isn`t found bootloader and asks to reboot the module

6) I`m trying reboot pressing the button on gateway board, then I`m trying reboot pulling the module out from the gateway and insert it back.
Also I closed the contacts 5 and 10. Without result.

7) After pressing the button XCTU doesn`t respond and I`m press Cancel.

8) And next following error.

This error repeated on other PCs.
DIGI inc. doesn`t answer letters and I don`t know what the problem.
Thank you!