I got my Tello, a couple of months ago. I used it for about a month and then stored it away, in the box that it came in, in my cupboard. Took it out today, didn't turn on, no lights(as expected), but when I put it for charging, the led indicator first blinks blue slowly and then relatively faster and then goes back to slow blinking and this repeats. Put it for charging for about 2 Hours now and the drone doesn't turn on at all when the power button is pressed firmly(no lights at all). Please help me, I really like the Tello and I don't think I'll be able to buy a new one