Nighthawk M1 Switched Off by Itself

Hi All

My MR1100-100EUS shut down by itself for the first time yesterday.

I pressed the on-off button, but nothing happened – it behaved dead. I had to remove and reinstall the battery in order for the on-off button to work and turn the M1 back on again. The M1 worked normally once it had booted up.

Is this a common issue that can just sometimes happen with the M1, or is it the first indication of bigger problems ahead?

Thanks