Location of Connect 4 "Watchdog Jumper"?

[lifeofaboat0]

We are interested in loading a new image on the RevPi Connect 4, and I see references to a "watchdog jumper" that needs to be removed (disabling the watchdog) in order to flash the eMMC via the USB port on the front...is there documentation hiding somewhere showing where this is located, and how to access it? Once the image is flashed, assuming that it is good practice to remove the jumper (enabling the watchdog)?

[p.rosenberger]

The RevPi Connect 4 has no watchdog jumper anymore. The watchdog jumper was needed on older Connect models.

Best regards,
Philipp