After updating my 540s SSD to the firmware 2.1.5, I find that the increase of power loss count still exists. If I shutdown my computer at night and power on it next morning, the count will increase by 1. If I just shutdown the PC and power on it immediately or restart it, the count keeps unchanged(no increase).
Thanks for letting us know about this situation, we would like to investigate in our end and verify what could be the reason of this behavior. Please provide us some time to research and we will get back to you.
After discussing this situation and performing our own test in two different desktops, we found out that in our side, the power loss count was not increasing with either restart or shutdown, so it may be possible this problem is related to the system using the retail version of the SSD.