ADB Connecting Issue with VOXL2 Board

dlee

Hi,

I am currently trying to develop software using the VOXL2 board, but I have run into a roadblock with connecting the board to my computer using ADB. After flashing the VOXL suite, the board got stuck at "waiting for ADB." I have tried several troubleshooting steps, including factory resetting with QDL and changing cables, but the problem persists.

Additionally, during the installation process, the VOXL2 board was unable to switch from fastboot to ADB mode. To resolve this, I divided the shell script into two parts: system-image and VOXL-suite. Although this allowed for a successful installation, the ADB connection problem has resurfaced.

If anyone has any suggestions or solutions for this issue, I would greatly appreciate your help. I am open to trying any and all troubleshooting steps to get this resolved.

Thank you for your time and assistance.

Chad Sweet

Hopefully you are following the handling instructions and used ESD protection when handling the PCB? https://modalai.com/handling

dlee

@Chad-Sweet Yepp, I followed ESD protection when handling the PCB. It worked few times only after flashing. But some times after, ADB connection didn't work. New voxl2 board and other board got a same problem. Do you have any solution?

Adrian Hidalgo

@dlee What steps were done before the board wouldn't ADB? Did the board go through the whole flashing procedure before "waiting for ADB"? What we've seen is after a hard reset, the fast boot switch on the Voxl2 needs to be pushed for either 25 seconds or boot the board holding the button down for 4 seconds. If you've already attempted this, what was the outcome?

dlee

@Adrian-Hidalgo The board went through the whole flashing procedure. I checked the voxl-suite is running. So I did my works. But after reboot, voxl2 adb couldn't connet to my companion pc.

tom

@dlee What OS are you running on your host PC? (We recommend Ubuntu 18)

Adrian Hidalgo

@dlee what's the output if you type

lsusb

dlee

@Adrian-Hidalgo This is the output.

@tom And I am using ubuntu 20.04. It worked before well.

tom

@dlee This is with VOXL2 powered and plugged in via. USB-C? Are you running Ubuntu natively or in a VM?

dlee

@tom Yepp, powered by power adapter. ADB connected by USB-C. Ubuntu natively, not VM.

tom

@dlee What do you see come through when you run dmesg -wH, then plug in power and USB to VOXL2.

It also doesn't hurt to try a different port on your host PC, i.e. going from USB3 to USB2

dlee

@tom Nothing changed. I did USB-C and USB-B(3.0), already.

tom

@dlee If nothing changed it's likely a cable or port issue. If there's LEDs going on VOXL2 when powered then it is booting.

dlee

@tom I changed port and cables. It didn't work, too. I tried everything.

tom

@dlee Is it detected when forced into emergency boot mode via. the switch? Or can you force it into fastboot via. the button?

dlee

@tom I did flashing and QDL, again. Re-flashing was successful. But when I reboot it, connection problem occur. I checked status using dmesg -wH and lsusb. This is the output.

lsusb

Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 018: ID 05c6:901d Qualcomm, Inc. QUSB_BULK_SN:73AD68FF
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0c45:6a09 Microdia Integrated_Webcam_HD
Bus 001 Device 002: ID 8087:0029 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

dmesg -wH

[Feb 7 10:07] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7
[  +9.642102] wlp4s0: deauthenticating from e6:f5:32:36:39:23 by local choice (Reason: 3=DEAUTH_LEAVING)
[Feb 7 10:08] wlp4s0: authenticate with 5e:5b:69:67:36:b5
[  +0.007679] wlp4s0: send auth to 5e:5b:69:67:36:b5 (try 1/3)
[  +0.149577] wlp4s0: authenticate with 5e:5b:69:67:36:b5
[  +0.000009] wlp4s0: send auth to 5e:5b:69:67:36:b5 (try 1/3)
[  +0.002812] wlp4s0: authenticated
[  +0.006113] wlp4s0: associate with 5e:5b:69:67:36:b5 (try 1/3)
[  +0.006320] wlp4s0: RX AssocResp from 5e:5b:69:67:36:b5 (capab=0x431 status=0 aid=2)
[  +0.021818] wlp4s0: associated
[  +0.086613] wlp4s0: Limiting TX power to 30 (30 - 0) dBm as advertised by 5e:5b:69:67:36:b5
[  +0.072842] IPv6: ADDRCONF(NETDEV_CHANGE): wlp4s0: link becomes ready
[Feb 7 10:09] Lockdown: systemd-logind: hibernation is restricted; see man kernel_lockdown.7
[Feb 7 10:17] usb 2-1: USB disconnect, device number 9
[Feb 7 10:19] xhci_hcd 0000:05:00.3: Timeout while waiting for setup device command
[  +5.375225] xhci_hcd 0000:05:00.3: Timeout while waiting for setup device command
[  +0.207982] usb 2-1: device not accepting address 10, error -62
[ +11.183109] usb 2-1: new SuperSpeed Plus Gen 2x1 USB device number 12 using xhci_hcd
[  +0.025567] usb 2-1: New USB device found, idVendor=05c6, idProduct=901d, bcdDevice= 0.00
[  +0.000008] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000002] usb 2-1: Product: QUSB_BULK_SN:73AD68FF
[  +0.000002] usb 2-1: Manufacturer: Qualcomm CDMA Technologies MSM
[  +0.000001] usb 2-1: SerialNumber: 8cc63c2c
[Feb 7 10:20] usb 2-1: USB disconnect, device number 12
[ +19.466698] xhci_hcd 0000:05:00.3: Timeout while waiting for setup device command
[  +5.375457] xhci_hcd 0000:05:00.3: Timeout while waiting for setup device command
[  +0.207938] usb 2-1: device not accepting address 13, error -62
[ +11.099012] usb 2-1: new SuperSpeed Plus Gen 2x1 USB device number 15 using xhci_hcd
[  +0.026684] usb 2-1: New USB device found, idVendor=05c6, idProduct=901d, bcdDevice= 0.00
[  +0.000013] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0.000005] usb 2-1: Product: QUSB_BULK_SN:73AD68FF
[  +0.000003] usb 2-1: Manufacturer: Qualcomm CDMA Technologies MSM
[  +0.000003] usb 2-1: SerialNumber: 8cc63c2c
[Feb 7 10:22] usb 2-1: USB disconnect, device number 15
[ +25.073739] xhci_hcd 0000:05:00.3: Timeout while waiting for setup device command

[  +5.375419] xhci_hcd 0000:05:00.3: Timeout while waiting for setup device command
[  +0.208126] usb 2-1: device not accepting address 16, error -62

tom

@dlee Are you able to force it into fastboot with the button?

dlee

@tom I can use fastboot mode above the board.
And I got a different problem another voxl2 board (I have 3 of voxl2 boards) video link. When I connected board to my companion pc using adb cable, the connection is maintained for a very short time and disconnected. Do you know about this problem?

tom

@dlee I haven't seen that behavior before. Try adb kill-server then adb shell again

dlee

@tom Same. Anyway, can I do something using fastboot?