I do, really easy to setup. I have decided to only show the temperatures and battery status when battery level is low.

@sundberg84 if you look at the schematic you have connected MySX pin 10 to D2, but according to the spec for the MySX 2.4 it should go to D4.

I have now checked the PCB, and you are right @JPM
Pin 6 of the flash chip is not connected at all. No wonder I could not get that to work. Strangely is that the schematic is OK.
Thanks for finding this, I will modify my boards to get them working.

I checked the schematic, and:
First mistake: Seems that the schematic is OK, the label for SCK (pin 6) is connected to physical pin 16 which is PCINT13 on the Arduino,
Second mistake: that is a bug, filter capacitor is not connected correctly.
Third mistake: That is also a bug, pin 7 and 3 should be connected to VCC
Now I am going to check the PCB, be back shortly,

I just checked my batch of Rev 10, random check of the batch checked out OK. I have 20 boards.

@dbemowsk the Flashforge Finder dont have a heatbed and only uses PLA. And if you dont clean the bed with IPA it will lift. I always print with brim just to be sure.

Just do a regular calibration. Just hand tight the knobs, no force needed. Then start the calibration. Slowly rotate the knob until it the printer beeps. When the calibration is done. Print one of these that fits the bed thingiverse calibration
Carefully check the result. You should have a consistent print. If not, twist the knob closest to where you need to move re-calibrate. Thin line, the bed need to be closer to the nozzle, thick line that curls, move the bed away.
Note, when turning the knobs, just move it 1/4th turn each time. And make a note wich knob, the direction (clock wise or counter clock wise).

To get more info, search on youtube for flash forge finder calibration, there are a lot of videos there.

I bought Buildtak that I replaced the bed with. I don’t use glue. I did print out a couple of calibration figures that I downloaded from Thingiverse. After a couple of re-calibrations and printing with the calibration figures I have not touched the calibration again.
However, when I printed the MySensors box from Thingiverse the corners still lifted.
That was when I found the suggestion to print with a rim.
Now my prints never lift.
I also clean the bed after each print with IPA.

Print with a rim. There is a tickbox for it.

Yes, and I am very pleased with it.