Worry about what customer worries about and think about what customer thinks about.
1. Tengfei offers free repair service for customers with the quality warranty card.
2. The following cases are not for free require service:
Defects caused by misuse of customer.
Damage caused by customer when disassembly of the products.
Don't have quality warranty card or the item No. is wrong.
Damage caused by force majeure.
The quality warranty card is expired.
3. In the above cases, Tengfei charges for parts and relevant services.