Ok... so for about a month I've had the problem of syncing my Charge 3 due to the issues with Android Pie/9.0. Tried all the suggestions for getting it to sync.. some worked temporarily but I haven't been able to sync for about 2 weeks. The battery runs down even quicker than normal. I have been unable to pair it with the Fitbit app for a week. Today I have a blank screen & when I try pressing the button in to do a restart it now just vibrates constantly. I have had it with this rubbish treatment 😠😡🤬
UPDATE: 17.7.19 - new tracker arrived today... managed to sync at 1st attempt & 2 hours in is continuing to sync automatically. Long may it last! Wondering if the constant attempts to reboot initial tracker actually damaged it in some way. I'll keep you posted if it stops syncing again