Blue led pops, but the speaker does not turn off

Hello. English is not my native language, so matbe there is a already solved issue like mine, but I couldn't find it cause I don't know how to put it in words. My bose is super well handled, never gave me any problem, but two days ago, it was charging, then I took it out of the energt suply, but it wouldnt make any sound (nor instruments, neither Bluetooth conection) and when I switched the power button to off or stand by, the blue led would still blink, like it wouldnt shut down. So I had to wait until it ran out of battery. Today it was working fine. Did somebody else experienced it? Should I reach warranty? Thank you.