1.已经超出有效服务或者免费维修期限的。2.未按正确使用说明使用，维修

1. It has exceeded the valid service or free maintenance period. <br>2. Failure to use, maintain, and store the product in accordance with the correct instructions for failure or damage <br>. <br>3. Failure or damage caused by maintenance by a non-company authorized maintenance organization. <br>4. There are no products with published information and seals on the Three Guarantees. <br>5. Altering the contents of the Three Guarantees certificate without authorization. <br>6. Consumers remove the product with the QCPASS sticker on the bottom of the product by themselves. <br>7. Due to force majeure (such as earthquake, fire, flood) <br>8. Product failure caused by human factors (such as operation error, handling damage, <br>bump , input inappropriate voltage, etc.) <br>9. Other non-product design, technology, manufacturing, quality and other issues result in <br>malfunction or damage.

1. The valid service or free maintenance period has been exceeded.<br>2. Failure or damage caused by failure to use, repair and store according to the correct instructions<br>of<br>3. Failure or damage caused by maintenance not authorized by the company.<br>4. There is no product with sales information and seal on the three guarantees guarantee.<br>5. Alter the contents of the Three Guarantees certificate without authorization.<br>6. Consumers remove the product with qcpass sticker at the bottom of the product by themselves.<br>7. Due to force majeure (such as earthquake, fire, flood)<br>8. Poor products caused by human factors (such as misoperation, handling damage, knock)<br>Touch, input inappropriate voltage, etc.)<br>9. Other non product design, technology, manufacturing, quality and other problems<br>Barrier or damage.

1. It has exceeded the effective service or free maintenance period. 2. Failure or damage caused by improper use, maintenance and storage according to the correct instructions. Yes. 3. Failure or damage caused by maintenance by a maintenance organization not authorized by the company. 4. There is no product with sales information and stamp on the three guarantees. 5. Altering the contents of the Three Guarantees certificate without authorization. 6. Consumers remove the QCPASS sticker at the bottom of the product by themselves. 7. Due to force majeure (such as earthquake, fire and flood) 8. Bad products caused by human factors (such as operation error, handling damage, knocking Touch, input inappropriate voltage, etc.) 9. Other non-product design, technology, manufacturing, quality and other problems. Or damaged.