Sorry for bringing incovenience to you for the hardware problem.
If you bought our product from the local authorized sellers, please try to contact your seller for help first.
In the case the seller fails to help, please contact support@fiio.com with the receipt attached.
How to contact seller via Amazon: https://www.amazon.com/gp/help/customer/display.html/ref=help_search_1-1?ie=UTF8&nodeId=GLC8ZMBWMBTR6QZZ&qid=1617784791&sr=1-1