Still suppose to be under warranty?
Heir Audio IEM Limited Warranty
Heir Audio IEM products carry a limited warranty. Material defects and craftsmanship is covered for a period of two years. If your product is within warranty it shall be repaired or replaced at our own discretion. Damage or breakage due to ordinary wear and tear, misuse, abuse, negligence, accident, excessive volume, shock, misapplication, unauthorized repair, acts of God, or modification of, or to any part is not covered by the warranty. Any modifications done to your product will void the warranty. Only materials and labor are covered by the warranty, drivers and the cable are excluded. The original warranty is non-transferable.