You don't say, but I assume you are using the FIX command when this happens.

You could try another battery, but if this does not work, it points to a hardware problem. Sorry.

First, thanks for your reply!

I’ve already tried some other batteries and even checked them with a multimeter and yes I went through the ” fix” procedure and everything fails… Except the checksum error message my eclipse is working well with no strange behaviors

Do you know what kind of hardware problem it could be?