What is an E-warranty card?
How do I activate/register with my E-warranty card?
How long is the valid time of my E-warranty card?
Can I unregister my E-warranty card?
What does an E-warranty card do?
Can I still use my E-warranty card if my phone fails to power on?
What do I do if I have questions or objections regarding the expiration date of my E-warranty card？