Microsoft Surface Hub 2 SmCamera - Manual (Page 475)

Figure 3. On/off button and LEDs indicating power function
C. Try to bypass the APC Charge Mobile Battery and power the Surface Hub 2S directly
via the
AC power cord to the power source. Does the Surface Hub 2S power on
independently?
If your Surface Hub 2S does power on properly while bypassing the APC Charge Mobile
Battery (step 3), contact the
APC by Schneider Electric Customer Support Center for
 Tip
The power on/off button is located on the bottom of the unit under a green sticker
Support requests