I have the following problem:
I gambled, everything was good, went to the kitchen and got myself something to drink and the controller was off, I want to turn it on then it flashes 2 times and pulses once and then it ends. The batteries are new, the charging cable does not work either, it can't be connected.
Do a hard reset on your console and try to reconnect the controller.
Thanks, I noticed myself. The Xbox pulsed too.