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Can't flash eMMC of CM4 using another Pi 4 #3635

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ll-O-ll opened this issue May 14, 2024 · 6 comments
Open

Can't flash eMMC of CM4 using another Pi 4 #3635

ll-O-ll opened this issue May 14, 2024 · 6 comments
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backlog We'll be getting to it eventually

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@ll-O-ll
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ll-O-ll commented May 14, 2024

So I've been trying to flash the eMMC of my CM 4 using another Raspberry Pi 4. I've used the steps outlined at https://www.raspberrypi.com/documentation/computers/compute-module.html#steps-to-flash-the-emmc

Here's what I did:

Connect jumper cable on J2 to disable eMMC boot on the CM 4.
Connect J11 USB slave to Pi 4
Power Pi 4
Power CM 4

Here's a picture of my setup:

flash cm4 using pi 4 setup

I expect the CM 4 to appear as a device on the Pi 4 but I see nothing :(

Any steps I'm missing here??

@lurch
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lurch commented May 14, 2024

@ll-O-ll
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ll-O-ll commented May 16, 2024

Yes I did this... Rpiboot stuck on Waiting for BCM2835/6/7/2711

@dp111
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dp111 commented May 16, 2024 via email

@ll-O-ll
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ll-O-ll commented May 28, 2024

Tried a different cable it works now. New problem though. It freezes my Pi 4 machine and all peripherals don't work (mouse keyboard). I rebooted both pis and the same thing happened. Here's a snapshot of where i'm at:
rpiboot output

The CM4's green light turns on as well... seems to me it exits boot mode

@ll-O-ll
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ll-O-ll commented May 28, 2024

So I tried the secure boot method... it got me further but I still can't see the disk mount when I run sudo lsblk

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This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@nathan-contino nathan-contino added backlog We'll be getting to it eventually and removed stale issue labels Jul 29, 2024
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