Rebooting loop Beryl AX (GL-MT3000)

defibos · 2022-12-20T20:39:33.951Z

My guess is that race condition during boot causing sometimes a failure because some files are not located. I attach 2 log collections:

fully healthy boot:
logread healthy.zip (27.6 KB)

several attempts with failures and a final sucess:
logread error and healthy (several attempts).zip (42.8 KB)

defibos · 2022-12-20T20:44:25.051Z

Probably compiled 29 Nov and released 5 Dec. They usually have a few days/1 week delay for stability checks.

I think they are not fully consistent with versioning for beta releases during the beta testing, that is why we have the 26Oct and 29Nov for 4.1.2. That is why it makes sense to add the md5/sha256.

jdub · 2022-12-20T21:02:50.058Z

Compile time shows as 12/5 though, not release time.

defibos · 2022-12-20T21:38:09.531Z

I get

Screenshot_2022-12-20_21-35-29

Screenshot_2022-12-20_21-36-06739×46 7.81 KB

Did you modify the /etc/wireless/meditak/ files?

jdub · 2022-12-20T21:48:29.413Z

No. I’m assuming the ones with the timestamps of basically now are auto updated by the OS.

cafebug · 2022-12-21T05:14:46.716Z

Well, I don’t touch any Mediatek file.

alex_zheng · 2022-12-21T09:17:01.525Z

Could you get some tools like PL2303 to get the sys log during startup(need to open the case )?

defibos · 2022-12-21T09:34:14.376Z

Hi,
I changed the log file to the external usb drive.
The log files attached above contain the logs with reboot attempts and a few successes (I logged to luci in the successes, which is logged).
I think the issue is related to the files described above not being found during the boot process.

What part is missing? Last line before crash?

JerryZhao · 2022-12-21T09:56:16.501Z

This is not the reason of reboot.
Could you connect UART to your router?

defibos · 2022-12-21T10:11:35.048Z

JerryZhao:

Could you connect UART to your router?

I have to order one.
It can take some days before I get the unit. Is there I can do meanwhile?

alex_zheng · 2022-12-21T10:11:56.689Z

I double Checked the log file. And there is no useful information for reboot problem. So I doubt whether it reboot or not.
Could you please tell me what phenomenon that make you think it rebooted?
Our engineer is also help to confirm the log file.

defibos · 2022-12-21T10:15:12.687Z

When you plug the device the lights start to indicate activity and the wifi networks appears after 20/30s. A few moments after that lights turn off and the cycle starts again.

alex_zheng · 2022-12-21T11:05:22.194Z

Thank you for the addition info . So maybe the device is not reboot. we wonder if the LED behaviour is wrong when the network is in the rebooting loop.
So the device is always in the loop or you need to do something to trigger it ?
Any device is pluging on the Beryl AX ?
Please forgive me so many questions, because I want to know more details

alex_zheng · 2022-12-22T10:39:18.599Z

Could you please to help to update the info ?

defibos · 2022-12-22T12:23:13.758Z

The device is not always in the reboot loop. Sometimes after plugging the power it boots correctly, but after a few minutes (2-20 min) it reboots itself and enters a rebooting loop.
Sometimes when the power is connected it enters the reboot loop directly without any successful boot.

I attach a video with the led lights pattern. The first boot is ok, but it reboots itself and enters a reboot loop.

Beryl ax reboot problem

I tested with/without usb connected, with/without ethernet cable connected, with/without repeater configured, as AP with cable in WAN and after factory reset and uboot flash. Same results. Only some differences until the reboot cycle is started.

bOcy · 2022-12-22T12:30:45.014Z

do you have another type c charger or power bank that can output 5V3A ? try using those to power the router, or change to another power socket

you can also try with slate ax power adapter

jdub · 2022-12-22T12:33:58.112Z

A different power supply is a good idea, but it does not need to be 3A or even 1A. The MT3000 pulls about 2.6W at full load (if nothing else is connected)

defibos · 2022-12-22T12:38:29.566Z

the power issue was my first guess, so I tested the original power supply, other usb-c chargers (with PD 3.0 implementing 5V >=3A), a plain 6 port 60W usb-a chagers able to provide 5V 3A (tested with a dummy load), power banks and different cables, both usb-a to usb-c able to carry 15W and usb-c symmetric (100W and 240W).
Same issue.

Dipin · 2022-12-22T14:57:56.732Z

This is the first time we encounter this problem. In order not to affect your testing of other cases, do you accept us to send you a new GL-MT3000 for testing?

defibos · 2022-12-22T16:42:46.850Z

Hi,
if I am the unique having this issue, it seems a hardware issue.
I bought PL2303, but it will take a few days to arrive because of xmas, probably next week.
I suppose I can get another unit (better if tested before being sent) for the testing, as not it is not possible currently. Later with a better diasnostic of the faulty one with the uart debug, returned with a label if fixable or decided for tracking better the error. PCB seems fine, can attach a few pictures.