in our devices the ON/OFF pin is set to HIGH for 3 seconds when the device is turned on by pressing the power button.
When we upgrade the firmware from 6.40 to 6.50a or 6.51 this does not seem to be enough. Actually, we are no longer able to turn on the device anymore by the power button. (if we managed the first time by bypassing the power button, the device will go back to regular operation…)
Is this because there is some kind of initialization when the module is turned on for the first time after the firmware download? What time is required to be safely able to turn on after any update? Even if there is some initialization process required, why does the module shut down if the ON/OFF pin is released after 3 seconds?
Thanks in advance,