How to repair the broken lighter electronics?

The electronic part of the lighter is broken. You can try the following repair methods:

First, check whether the battery is normal. If the battery is dead or in poor contact, you can replace the battery or adjust its position. Secondly, check whether the electronic circuit is loose or broken, and if it is, it can be reconnected or soldered. In addition, you can also try to clean electronic components, such as wiping electronic components with a cotton swab dipped in a small amount of alcohol to remove possible dirt.