Lg optimus lte wont charge

[Kirago]

so Ive tried different chargers n stuff but it wont charge. ive plugged it in via usb to charge n all that happens is the menu, home, n back buttons flash for a bit then turn off. idk whats wrong with it n i kinda want to know so if anyone has info or has experienced this can you give me some advice..
ps. idk if this is where i post this kind of thing so forgive me if it is not...

 

[chanchan05]

Have you tried changing the battery? Maybe the battery is dead.

 

[Kirago]

ive decided im just gonna take it into bell n see if they can figure out the problem, although i dont want to have to get the phone replaced because i got important stuff on the phone itself. i hope its just the battery but why would the buttons flash if the battery was dead?