psp memory keeps flashing?

[Coolcar014]

My psp just stared flashing after i changed memory cards then i put the other on e back still the same thing keeps flashing please help i dont want to buy a new psp...and how do you use the warently on the back of the battery it could be useful

 

[buffman]

Thats normal nothing to worried about that happens when you switch your memory card or save games music pics etc it starts flashing