Hello, I feel like this is probably an obvious fix but I'm just not getting it. I have a 2020 A2338 (M1) that I replaced the panel on. I was going to go through my checklist, but was stopped by the keyboard and trackpad both being unresponsive. I swear I remember this working at some point, but I'm not positive. Regardless, the touchbar does work, and external peripherals do work.
MRI reports the trackpad is not detected, and that is also reflected on the setup screen where it has the prompt to connect a mouse/keyboard.
I didn't see any issues on the board or the trackpad, so I tried a DFU restore. It errored out with -1 (no trackpad) so I replaced the cable with a new one and got the same error. I replaced the trackpad with a known working donor from another M1 A2338 and still the same error. I do want to note that the keyboard is active during preboot, as it is able to recognize the DFU key combination. And on the topic of DFU, this MacBook seems to be either ignoring or heavily delaying its responses to VDMs sent by MacVDMTool. I say this because if I send the DFU message, it will not react however will immediately enter DFU if I manually shut it down shortly after sending the message. Same deal with reboot. Considering USB devices work on both ports, and both ports are able to charge, I'm hesitant to call a port problem.
Again, I didn't see any issues on the board, and I'm not sure what is required for the trackpad to be detected.
MRI reports the trackpad is not detected, and that is also reflected on the setup screen where it has the prompt to connect a mouse/keyboard.
I didn't see any issues on the board or the trackpad, so I tried a DFU restore. It errored out with -1 (no trackpad) so I replaced the cable with a new one and got the same error. I replaced the trackpad with a known working donor from another M1 A2338 and still the same error. I do want to note that the keyboard is active during preboot, as it is able to recognize the DFU key combination. And on the topic of DFU, this MacBook seems to be either ignoring or heavily delaying its responses to VDMs sent by MacVDMTool. I say this because if I send the DFU message, it will not react however will immediately enter DFU if I manually shut it down shortly after sending the message. Same deal with reboot. Considering USB devices work on both ports, and both ports are able to charge, I'm hesitant to call a port problem.
Again, I didn't see any issues on the board, and I'm not sure what is required for the trackpad to be detected.
