question about dfu restore

[farfan14]

i want to know if possible dfu restore by configurator without battery and housing. for exampleif can I do restore if i have only connected motherboard by usb to another mac and also plugged on charger?.thanks

i forced to be in dfu mode by changing u4770. so dont need keyboard for dfu

i am getting error 0xFAE (4014) Unexpected device state DFU expected "recovery"( probably forced into DFU mode externally)

this error is with everything connected and also when i am trying to restore only motherboard connected

p.s problem was that ssd circuits was shorted and i changed 4 pcs nands. tsb 4227 and tsb 4228 . programmed by jc P13. no more short. i am getting ssd voltages. 1.8v 0.9v 2.5v but can't restore. i also changed U9080

all awake and slps2r voltages are there..

 

[2informaticos]

You should turn off the board and force it into DFU manually.
Don't start restore from recovery state.

You should use corresponding DFU pads...

 

[farfan14]

maybe you don't understand what i asked.sorry for my bad english. please read once again what i wrote. thanks 2 informaticos for your effort. you are great man

 

[farfan14]

for example if you will change nand on ipad/iphone it will stuck in dfu mode and for restore battery/power supply must be connected and dock/port of course. no need anything else for restore. i dont know it about macbook. macbook also need battery connected or charger is enough for dfu restore .and also it need anything else to be connected or not?thanks

 

[farfan14]

finally i fixed this macbook A2159 820-01598. so reason of this problem was damaged one of the replaced nands. changed all of them second time and problem fixed. and about my question i checked only motherboard connected with charger and its restored. so its possible to restore without anything else.its comfortable for testing purpose during repair.

thanks