AllNetChina Unresponsive to faulty USB2.0 ports

#1

Hello all, I am wondering if there is anyone from AllNetChina here in this forum? I received a brand new Rock5 B board and immediately upon testing, I realized that both USB2.0 ports are not working.

I have other Rock5 B boards that I purchased from Ameridroid, and have tested the same exact configuration on those boards and the USB2.0 ports are working as expected with those other boards. It’s not a cable issue or sd card or nvme issue either as I tried the same cables and sd card and nvme with the other boards and have been able to narrow it down to the USB2.0 ports not communicating of this particular board I received from AllNetChina.

I have reached out 2 times to the AllNetChina email address provided in the order receipt which is also the email from the website, and I notified them of the issue asking them for guidance on how to resolve the matter, and have not heard anything from them.

If anyone here knows who I may contact to resolve the issue, I would be most grateful! Thanks in advance.

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#2

I had same thing with them - one of my eMMC was clearly faulty, not detected in system. I contacted them to hold my other order, maybe to include new eMMC module to replace. As soon as I send them evidence they remained silent and sent out that order.
Having nothing to lose I resoldered memory chip as well as port and module come to life, but I just learned that they don’t support anything that is ordered from them. Maybe it’s just hard to judge when and how it was damaged, since You can kill anything just by touching with EV. Also as You can see it’s not that clear if it’s hardware or software issue and usually sending back something is too expensive.

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#3

Thanks for sharing your experience with them, that’s unfortunate if this is how they operate.

I did some more investigating and it is definitely a hardware issue. Here is some output which confirms it’s the vbus-supply and phy-supply (on-chip physical transceiver) that is failing:

$ dmesg | grep -i USB2
[    8.296348] phy phy-fd5d0000.syscon:usb2-phy@0.0: Looking up phy-supply from device tree
[    8.296356] phy phy-fd5d0000.syscon:usb2-phy@0.0: Looking up phy-supply property in node /syscon@fd5d0000/usb2-phy@0/otg-port failed
[    8.296400] phy phy-fd5d0000.syscon:usb2-phy@0.0: Looking up vbus-supply from device tree
[    8.296405] phy phy-fd5d0000.syscon:usb2-phy@0.0: Looking up vbus-supply property in node /syscon@fd5d0000/usb2-phy@0/otg-port failed
[    8.297583] phy phy-fd5d8000.syscon:usb2-phy@8000.1: Looking up phy-supply from device tree
[    8.297590] phy phy-fd5d8000.syscon:usb2-phy@8000.1: Looking up phy-supply property in node /syscon@fd5d8000/usb2-phy@8000/host-port failed
[    8.298697] phy phy-fd5dc000.syscon:usb2-phy@c000.2: Looking up phy-supply from device tree
[    8.298703] phy phy-fd5dc000.syscon:usb2-phy@c000.2: Looking up phy-supply property in node /syscon@fd5dc000/usb2-phy@c000/host-port failed
[    8.299929] phy phy-fd5d4000.syscon:usb2-phy@4000.3: Looking up phy-supply from device tree
[    8.299936] phy phy-fd5d4000.syscon:usb2-phy@4000.3: Looking up phy-supply property in node /syscon@fd5d4000/usb2-phy@4000/otg-port failed
[    8.299971] phy phy-fd5d4000.syscon:usb2-phy@4000.3: Looking up vbus-supply from device tree
[    8.299977] phy phy-fd5d4000.syscon:usb2-phy@4000.3: Looking up vbus-supply property in node /syscon@fd5d4000/usb2-phy@4000/otg-port failed
[    8.924332] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.10
[    8.924336] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[    8.924339] usb usb2: Product: EHCI Host Controller
[    8.924342] usb usb2: Manufacturer: Linux 5.10.110-rockchip-rk3588 ehci_hcd
[    8.924345] usb usb2: SerialNumber: fc880000.usb
[    9.047016] phy phy-fd5d4000.syscon:usb2-phy@4000.3: illegal mode

Still have some hope that AllNet is on this forum and open to finding a solution. AllNet, if you are here please reach out

#4

@josjunior - please check your spam mail folder.

We replied including the return instructions.

And yes, sorry for the 2 days it took.

2 Likes
#5

@NBA Thank you for the email, just saw this now. Will follow-up to the email soon.

#6

Most people seem unaware of static precautions.
I haven’t seen one Youtube of handling SBCs where a static wrist strap is used and working on an anti-static workstation.
Static warnings should be a prelude to all demonstrations.
I’m an old production/repair technician and recent companies I’ve worked for have no static awareness.

1 Like
#7

I always use my anti-static mat, grounding cord, and wrist strap when handling bare boards like these. or when working on my desktops. Some low quality mats don’t really help. I’ve found that the equipment that comply with some of the ESD standards are better for handling electronics.

I mean, after all, the rock5 model B comes in an ESD rated conductive grid bag, that says “Static Sensitive Device”, so it’s pretty clear you need to handle them with care

#8

Great to hear that it’s being solved :slight_smile: