Can't sync Blaze with LG L9 P769

[Simon-X]

I can pair and connect with the Blaze. It seems the watch was synced on the first connection.  On my phone, it says:

Last Sync Yesterday 9:45 pm.

However, it won't sync anymore.

My phone (LG L9 P769) is not on the compatible device list. It can connect the Blaze. Is there any way I can sync with the Blaze? I'll either return my Blaze or buy a new compatible phone, right?

[Rich_Laue]

Have you restarted three tracker yet  http://help.fitbit.com/articles/en_US/Help_article/1186

And the phone. Or read the help doc @  http://help.fitbit.com/articles/en_US/Help_article/1866/

[Simon-X · Accepted solution]

I've tried to restart and it is still not working.

Talked with support that my phone is bluetooth 3.0 and the app needs 4.0 to work with. So, I have to change my phone if I need to sync between phone and Blaze. For now, I'll try to sync with my Windows 10 PC.