TR850, TR850G DMR Repeater Instruction Manual
17
below interface flashes back, maybe fail to open the serial port. Please check the serial port
connectivity, or other program takes up the serial port.
（
4
）
if the update is finished, software will note that. Please don’t forget to switch the boot mode
back to 1000.
Upgrading the System
（
1
）
Boot mode should be 1000 while upgrading. Choose the system programs to be downloaded,
and remove unnecessary components according to needs. (For example: if the repeater could
work normally and connecting the PC network before upgrade, then you could remove the hook
behind the environment variable).
（
2
）
Click ―download‖ button to proceed. When upgrading, there is a progress bar to show the
upgrading status. And there will be a prompt message after the process is finished.
Upgrading the system
（
1
）
Boot mode should be 1000 while upgrading. Choose the system programs to be downloaded,
and remove unnecessary components according to needs.
（
2
）
Click ―download‖ button to proceed. When upgrading, there is a progress bar to show the
upgrading status. And there will be a prompt message after the process is finished.
