Hi there @musclesandfluff. Great to see you in the Community Forums!
I’m sorry to hear that you’re having problems to sync your Blaze to your phone :/ Thanks a lot for restarting your phone and your Blaze to try to get this fixed!
Now, there’s something else I would recommend. Please try to restart your Blaze one more time. Make sure you’re doing this by pressing the left and lower right buttons for 10-12 seconds. This will make your tracker to reboot.
After that, proceed to set up your tracker as a new device. For this, go to the Account section at the top right corner on the Fitbit app and select the option that says “Set up a new device”. Follow the on-screen instructions and once you’re done, your tracker should be syncing without a problem.
Let me know how it goes!