@tangougou it seems that i could upload pictures now~

@Veti thanks a lot, there is no jumper between them , it work well now.

@Veti i haven‘t confirm that, maybe there was a jumper , the machine is on my office ， now it's 23:16 that's time to go to the bed~

@Veti it seems that there is no jumper on the 5vaux and 5v int pins... two hours ago i used a multimeter to test the 5v pin but there is no 5v between the pwm1 5v and gnd pins

@tangougou it seems that i could upload pictures now~

@Veti i cant upload the picture , white connect Zprober in on duet2 wifi black connect gnd near the white ,

@droftarts when i don't use duex5 before. i have connect the bl touch in to the heater3 on the expansion 8 Pin it work well , it whs turn on the red led , but after i connect the bl touch into the duex5 and already reconfig the sys ,the bl touch was no led when i ture on the power , after i send M401 the bl touch was turn the blue led .

@Veti
; deployprobe.g
; called to deploy a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Fri Sep 04 2020 21:39:04 GMT+0800 (中国标准时间)
M280 P3 S10 ; deploy BLTouch

; retractprobe.g
; called to retract a physical Z probe
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Fri Sep 04 2020 21:39:04 GMT+0800 (中国标准时间)
M280 P3 S90 ; retract BLTouch

@Veti yes i see that and already confirm twice that my deployprobe.g retractprobe.g M280 in that don't include "I1"。before i bought the duex5 ,i have already test the BL touch in my duet2 wifi ,it works well

i cant upload the picture
when i turn on the power the bl touch have no response. the web show that i have already connected the duex5 Duet WiFi 1.02 or later + DueX5 (duetwifi102)