I have had the situation 2-3 times with the ATN X-Sight 1 where the scope would freeze up and not turn on any more.
Taking the batteries out, putting them back in and attempting to power it back up also did not work. Any normal procedure to fix this was not successful.
The following steps however will drain any rest-current stored in capacitors and should help you to get operational again:
- Take out batteries
- Disconnect external battery
- Push power button for 2 seconds
- Push power button again for 2 seconds
- Repeat one more time.
- Put fully charged batteries in (watch for polarity)
- Tighten battery cap properly
- Try to start it again