Hello @Oraphan and welcome to the Help forum. You probably cannot repair it yourself. Even if you have some skills, it will be an electrical risk. The Blaze was discontinued several years ago. Fitbit doesn't sell chargers anymore. Your best chance is a site like Amazon. Good luck.
Laurie | Maryland
Sense 2, Luxe, Aria 2 | iOS | Mac OS
Take a look at the Fitbit help site for further assistance and information.
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