I've been searching all over the internet for answers to these, but can't find anything. So if someone could provide answered I would highly appreciate it.

1. Does the kindle fire warranty apply to a second kindle fire? (My first kindle's battery died, so I sent it in and got another, and now my second one is messed up, so can I send my second kindle in and get another?)

2. My kindle fire will not charge while in use. The amber/orange charging light is on but it doesn't charge. (Yes, I have tried holding the power button down and rebooting it.

3. My kindle fire will sometimes randomly go back to the home page, any idea why?