Uniden UBC-3500XLT test modes

 

12.9.2023
Uniden UBC-3500XLT test modes

Some Uniden DMA/XT scanner special key codes work also in the UBC-3500XLT.
When powering on UBC-3500XLT press at the same time:

Firmware update mode: power+L/O+6

LCD pixel tests: power+0+3+7
                        power+0+1+9

Frequency bands test: power+0+3+hold

EEPROM dump: power+1+9+hold

Firmware version: power+2+5+9
Key touch test: power+0+6+hold

Frequency step test: power+1+5+9, it overwrites custom search ranges

RS232 PC test: power+0+1+hold

UBC-3500XLT shows opening message text a few seconds before entering test mode.
If after power off and then power on 3500XLT still shows test mode press scan key to exit test mode.