Possible causes: The device may not be powered on, or the battery may be low.
Solution: Try taking a few deep breaths to activate the device. If it's a rechargeable model, ensure the battery is fully charged. New devices will begin dispensing liquid and producing vapor after a few inhalations.

Possible cause: Improper storage or excessive shaking leading to leakage.
Solution: Please store your vape upright. If you have shaken the device violently, please let it sit for a while before using it.

Possible causes: The device may not have been charged correctly, or it may have been used for an extended period after being fully discharged. Solutions: Use a reliable charger and charge the battery frequently before it is completely depleted. If it is a Bang disposable vape, it may have reached the end of its lifespan; please replace it with a new one.

Possible causes: The e-liquid level may be too low, or the coil may have burned out due to overuse without refilling.
Solutions: Always check the remaining e-liquid level before each use, and avoid inhaling when the e-liquid is almost empty. If the flavor seems weak, the device may need to be replaced.

Possible causes: You may be inhaling too forcefully, or the mouthpiece may be clogged. Solutions: Check the mouthpiece for foreign objects or liquid residue and gently clean it with a cotton swab. Also, try inhaling at a steady pace, avoiding forceful inhalations.