|  05-20-2024, 04:08 PM | #3 | 
	| Onyx-maniac 
				 
				Posts: 4,121 Karma: 18764971 Join Date: Feb 2012 Device: Nook NST, Glow2, 3, 4, '21, Kobo Aura2, Poke3, Poke5, Go6      | 
			
			Onyx has varied between very obvious (Poke3) to very obscure (Poke5) in the layout of UART and USB_BOOT ("EDL") test points.I think the 5 points at the bottom of the big photo are the most probable.
 But don't just go shorting things (unless you want to vaporize your device).
 Do you have a DVM? Even a cheapy if it has "diode test".
 | 
	|   |   |