UCR201 not connecting after battery change

[Alcyde]

Hello, the UCR201 shows: "no connection to receiver" after a low battery and a battery change.
The plugin is enabled, I have reinstalled the drivers, tried different USB ports, and changed the RF channel... It's like the antenna is broken or something, I don't know.
My old UCR201 with a broken screen doesn't connect either.

Thank you guys

[cncdrive]

Please try the following:
Press the E-stop button in. And press and hold down the Home and
GotoZero buttons for at least 5 seconds.
Then the UCR201 goes into calibration mode. You can change the
calibration value with rotating the handwheel.
The new value can be saved pressing the Stop button.
Try values 15. and 4. to see if it resolves the issue. Because it is
possible that somehow the UCR201 forgot the RF calibration value.
It is a fine tuning of the RF frequency varying by device. But 4 or 15
should work for all UCR201.