May 28May 28 Hi everyone, I downloaded a 6.12.68 image for my Bigtreetech Pi, compatible with CB1-sd. After apt update and apt upgrade, onboard ethernet disappears. During update got these messages: - Err: 16 http://deb.debian.org/debian trixie-backports/main arm64 Packages.diff/Index Could't find the start of the patch series - Notice: Repository 'http... InRelease' changed its 'Version' value from '13.3' to '13.5' Launching a new apt update, error and notice disappear. After upgrade and reboot there is no more ethernet device, just wifi. Investigating a little I found the kernel module sunxi_gmac.ko that was present in folder /usr/lib/modules/... current... /kernel/net/ethernet/allwinner before upgrade, is now missing after upgrade. There is just a sun4i-emac.ko after upgrade. Plugging in an usb to ethernet adapter (Realtek r8152) works immediately, get eth0 and connect. Can someone help to restore onboard ethernet? Thanks, Mario
May 28May 28 Solution There's been a few changes to make etehrnet work on H6 that broek it for H616/H618 seemingly. Your best course of action for now would be to downgrade to 6.12 and lock the `linux-*` from being upgraded.
May 31May 31 Author Also a small display with ST7796 and ADS7846 on shared SPI stopped working. Downgraded to 6.12 and all works. When you solve it, if you remember, give me a shout. Thanks
June 3Jun 3 I ran into this as well. Downgrade to kernel 6.12.58 fixed the physical interface. My board that initially had Trixie required the NetworkManager fix to get wifi working even after reverting. Something about the upgrade and/or downgrade broke netplan.
July 20Jul 20 4 hours ago, Raj Srikrishnan said: Any updates on this H6 vs H616 ethernet issue? Should work on all devices
July 20Jul 20 It should be / it was reported fixed a week ago, but you need to make image on your own or use nightly automated builds.
July 22Jul 22 Quote mattjm I ran into this as well. Downgrade to kernel 6.12.58 fixed the physical interface. My board that initially had Trixie required the NetworkManager fix to get wifi working even after reverting. Something about the upgrade and/or downgrade broke netplan. i got the same problem my ethernet is gone. how does one downgrade i cant figurer it out at all
July 31Jul 31 How do you find the nightly build, or just do an in-place kernel upgrade to the latest version which fixes the H6/H616 ethernet issue?
August 2Aug 2 On 7/31/2026 at 11:00 PM, rajsris said: How do you find the nightly build https://armbian.com/boards/bigtreetech-cb1 Nighly = Rolling
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