User's Instructions

13
replacement or return. Even if the products are within the warranty period, our company will
charge relevant maintenance fees.
(1) The repaired products have the following phenomena:
■Burn marks ■Defect or damage of components ■Solder defects
(2) Operational negligence includes: If the crystal head is connected to the wrong wire, the
product is damaged without wearing anti-static bracelet (for bare board), such as chip burning,
whole machine damage, shield cover damage, radio frequency head damage, etc.;
(3) Other problems and faults caused by abnormal use (mainly power supply or non-standard
power supply);
(4) Do not follow the installation and configuration instructions;
(5) If the main board is so badly burned that it cannot be maintained, a new main board shall be
purchased for replacement;
(6) Damage caused by disassemble, repair or alteration of the circuit by the user;
(7) Incomplete product information, such as warranty label /MAC address /SN code on the body,
date paper removed, damaged or altered, model sticker removed;
(8) Unauthorized modification of non-our company's firmware.