Garmin FR10 Problem

[hose1975]

I don't know if anybody here has had a similar problem, so here goes...

I have had my Garmin FR10 for about a month now and it's been wonderful. Until last night. I connected it to the charger and left it for a couple of hours and then disconnected it in the usual way (took the charger off the phone, not switched it off at the wall first); a split second later concentric waves of squares started pulsing out on the screen. To say I found this alarming would be somewhat of an understatement...

I did manage to turn it off and on again and it would appear to be working fine now. I'm just a bit nervous about what caused it and whether it's likely to happen again. The google interwebs have not provided in this instance

Does anybody know what might have caused this?

Thanks

Jo

[DownNotUp Graduate]

I've no idea what could have caused that but if it is working OK now then probably just a minor energy glitch and probably better in future to switch off before disconnecting. I am just making a guess though.

[Theziggy Graduate]

I never switch mine off at the wall first and this hasn't happened me yet but now I must remember to switch it off at the wall first