Below are some instructions on how to factory reset and RTX4002 repeater:
1. Power off RTX Repeater
2. Power on the RTX Repeater for between 1-5 secs (ie 2 secs) then power off
3. Power on RTX Repeater for between 25-35 secs (ie 30 secs) then power off
Now the RTX Repeater should be reset, power it back on and the light should be blinking slowly.
For more information on pairing the RTX with a Gigaset base station, please see our guide