@Luciano-S. Yes, the LED is off.

But unfortunately the current consumption is ~65-70 mA (at least on my O2+). Maybe the MT7688 freezes and the state of the RAM, FLASH, etc. is not determined.

Additional similar states of Omega2+:

This is my pet ;-)

Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: 8701d944

Rebooting in 3 seconds..

Hardware Reset - when the RST pin goes to LOW
(eg. via a momentary push button to the GND).

Chris Stratton taught me to understand, my problems are related to Omega2+ only.
Please forget it if you are talking about Omega or Omega2.