Blue Triangle....again

Blue Triangle has flashed (two long flashes followed by a quick flash) has been going on for two days now.

I have read all the "hold the power off for 60 seconds" and "re-sync" comments and tried them all.

I have charged it up over night as well.

Still the Blue Triangle,

But then...... a battery symbol with a red (lightning) flash has appeared. As if to say it needs powering up.

Still nothing working.

Contacted Garmin.....no reply, support or satisfaction. I mean FFS!

Any advice.