Hello, resurrecting this thread once more. I have a new to me PE+ machine had low battery when I received it. I changed the battery and added a holder, but still am getting the low battery message.
I'm measuring 3.7v at the battery and at the RAM. I've tried the reset procedure, but don't ever get a ding after holding the self test button. I've tested the self test button and reset switch continuity and both function. I'm assuming the door optics work because if it is booted up with the door closed the "Door Open" alarm does not show up.
When booting up it says "Verifying Game Memory, Please Wait". One thing I have noticed is that the background color will sometime change. I have seen it blue, yellow and green.
Any ideas what should be done next to get past the "Low Battery" message?