Firmware or Motherboard issues?

Hi! So I'm currently working on building a prusa i3 mk3 clone with an einsy rambo board with TMC2130 stepper drivers. Everything was working fine last Friday, the bed was heating, the axes were moving fine and homing properly, etc.



Then yesterday I come in and start working and:

• The machine no longer makes its usual noise when booting up
• The LCD flickers when booting up, when being used, and when I try to "re-flash" the firmware
• The LCD says TMC Connection Error
• It is taking forever to connect to pronterface

Thinking it was the power supply, I checked the wiring on that and everything was fine. I also checked that everything was plugged into the board and it was.



Once I finally got it to connect to pronterface none of the axes would move, so I used M122 and got the following:

Printer is now online.
Marlin bugfix-2.0.x
echo: Last Updated: 2021-10-04 | Author: (ARS)
echo: Compiled: Mar  31 2022
echo: Free Memory: 2359  PlannerBufferBytes: 1632
echo:V85 stored settings retrieved (676 bytes; crc 45991)
Testing X connection... Error: All LOW
Testing Y connection... Error: All LOW
Testing Z connection... Error: All LOW
Testing E connection... Error: All LOW
>>> m122
SENDING:M122
		X	Y	Z	E
Enabled		false	false	false	false
Set current	500	500	530	514
RMS current	897	897	508	508
MAX current	1265	1265	716	716
Run current	29/31	29/31	16/31	16/31
Hold current	29/31	29/31	16/31	16/31
CS actual	0/31	0/31	0/31	0/31
PWM scale	0	0	0	0
vsense		0=.325	0=.325	0=.325	0=.325
stealthChop	false	false	false	false
msteps		256	256	256	256
interp		false	false	false	false
tstep		max	max	max	max
PWM thresh.
[mm/s]
OT prewarn	false	false	false	false
triggered
 OTP		false	false	false	false
off time	0	0	0	0
blank time	16	16	16	16
hysteresis
 -end		-3	-3	-3	-3
 -start		1	1	1	1
Stallguard thrs	0	0	0	0
uStep count	0	0	0	0
DRVSTATUS	X	Y	Z	E
sg_result	0	0	0	0
stallguard
fsactive
stst
olb
ola
s2gb
s2ga
otpw
ot
Driver registers:
		X	0x80:00:00:00
		Y	0x80:00:00:00
		Z	0x80:00:00:00
		E	0x80:00:00:00
Testing X connection... OK
Testing Y connection... OK
Testing Z connection... OK
Testing E connection... OK
ok P15 B3

And then when I used the LCD to home the axes all but the Z move. When I try to home or move the Z everything freezes (or buffers, I'm not sure) and then pronterface eventually shows that it's disconnected



Then when I reconnect and home the x and y individually, I get this

Connecting...
start
Printer is now online.
Marlin bugfix-2.0.x
echo: Last Updated: 2021-10-04 | Author: (ARS)
echo: Compiled: Apr  4 2022
echo: Free Memory: 2359  PlannerBufferBytes: 1632
echo:V85 stored settings retrieved (676 bytes; crc 45991)
Testing X connection... Error: All LOW
Testing Y connection... Error: All LOW
Testing Z connection... Error: All LOW
Testing E connection... Error: All LOW
ok P13 B1
ok P13 B2
ok P13 B1
ok P13 B2
>>> m122
SENDING:M122
		X	Y	Z	E
Enabled		true	true	false	false
Set current	500	500	530	514
RMS current	497	497	508	508
MAX current	701	701	716	716
Run current	29/31	29/31	16/31	16/31
Hold current	29/31	29/31	16/31	16/31
CS actual	29/31	29/31	0/31	0/31
PWM scale	0	0	0	0
vsense		1=.18	1=.18	0=.325	0=.325
stealthChop	false	false	false	false
msteps		16	16	256	256
interp		true	true	false	false
tstep		max	max	max	max
PWM thresh.
[mm/s]
OT prewarn	false	false	false	false
triggered
 OTP		false	false	false	false
off time	3	3	0	0
blank time	24	24	16	16
hysteresis
 -end		-2	-2	-3	-3
 -start		6	6	1	1
Stallguard thrs	0	0	0	0
uStep count	904	248	700	1023
DRVSTATUS	X	Y	Z	E
sg_result	72	51	0	0
stallguard	*	*
fsactive
stst
olb				*
ola				*
s2gb
s2ga
otpw
ot
Driver registers:
		X	0x81:1D:00:4A
		Y	0x81:1D:00:38
		Z	0xE0:00:00:00
		E	0x80:00:00:00
Testing X connection... OK
Testing Y connection... OK
Testing Z connection... OK
Testing E connection... OK
ok P15 B3

If I try and home the Z axis individually the printer once again freezes up and disconnects.



Again, the bed still warms when asked and the X and Y are moving fine. I have not changed the firmware since I left the lab last Friday and when I left everything was working normally.



Does this seem like a board or firmware issue? I was thinking that maybe the board overheated when I was using it last Friday and maybe the Z stepper driver broke?



Any help would be appreciated