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#1 2021-10-13 20:28:17

Josey
Member
Registered: 2017-10-25
Posts: 8

'Trolls' kids smartwatch not recognized by Arch.

Hi all,

I'm trying to access a USB kids camera smartwatch to download the photos/videos from it.

I plug it in, and nothing. lsusb shows it as:

Bus 003 Device 002: ID 0e8d:0003 MediaTek Inc. MT6227 phone

I also plugged it into a friends Windows 10 laptop, and it didn't seem to do anything. I then tried it out on a Windows XP thin client I have. It detected it as a new device, and wanted to check Windows Update for a driver, but it doesn't have internet access, so no luck there.

I found a post on askubuntu about a smartphone with the same USB id, which also wouldn't connect. https://askubuntu.com/questions/657360/ … -by-ubuntu

The solution there was commenting out a line in /lib/udev/rules.d/40-usb_modeswitch.rules, but usb-modeswitch isn't installed by default on Arch. I did try installing it, and there are three lines about 0e8d. I tried commenting them all out, no difference. I tried commenting out just the "0002" line, no difference.

I'd really appreciate any ideas!

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#2 2021-10-13 20:33:02

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 29,686
Website

Re: 'Trolls' kids smartwatch not recognized by Arch.


Arch + dwm   •   Mercurial repos  •   Surfraw

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#3 2021-10-13 23:27:53

Josey
Member
Registered: 2017-10-25
Posts: 8

Re: 'Trolls' kids smartwatch not recognized by Arch.

Thank you, I will have another look here. I don't think this is the problem, and I've never had any issues with smartphones or digital cameras on Arch.

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#4 2021-10-14 07:01:13

seth
Member
Registered: 2012-09-03
Posts: 24,102

Re: 'Trolls' kids smartwatch not recognized by Arch.

Can you control the USB mode inside the watch? Does its manual suggest the capacity to access the mass storage device?

The askubuntu post indeed suggests that the chip supports different modes and that 0003 is the wrong one, but usb_modeswitch is typically used to switch *out* of the mass storage interface and into the eg. modem device.
Also you didn't have usb_modeswitch installed itfp. so it cannot have "falsely" auto-activated the modem mode (but if you keep it installed you want to keep the chip commented for sure)

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#5 2021-10-14 11:02:53

Josey
Member
Registered: 2017-10-25
Posts: 8

Re: 'Trolls' kids smartwatch not recognized by Arch.

seth wrote:

Can you control the USB mode inside the watch? Does its manual suggest the capacity to access the mass storage device?

The askubuntu post indeed suggests that the chip supports different modes and that 0003 is the wrong one, but usb_modeswitch is typically used to switch *out* of the mass storage interface and into the eg. modem device.
Also you didn't have usb_modeswitch installed itfp. so it cannot have "falsely" auto-activated the modem mode (but if you keep it installed you want to keep the chip commented for sure)

I can't find any way to switch the mode on the watch. The manual says just to plug it in and it'll show up as a storage device.

That's good to know about usb_modeswitch. I'll uninstall it.

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#6 2021-10-14 13:37:10

seth
Member
Registered: 2012-09-03
Posts: 24,102

Re: 'Trolls' kids smartwatch not recognized by Arch.

"Have you tried turning it off and on again?" (The watch)

You could also try to useb_modeswitch "reset" it

usb_modeswitch -d -R -v 0e8d -p 0003

Otherwise, after removing usb_modeswitch, reboot, run "dmesg -w" and attach the watch.
Post the tailing output.

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#7 2021-10-16 00:26:56

Josey
Member
Registered: 2017-10-25
Posts: 8

Re: 'Trolls' kids smartwatch not recognized by Arch.

seth wrote:

"Have you tried turning it off and on again?" (The watch)

You could also try to useb_modeswitch "reset" it

usb_modeswitch -d -R -v 0e8d -p 0003

Otherwise, after removing usb_modeswitch, reboot, run "dmesg -w" and attach the watch.
Post the tailing output.

Thank you for all this help seth!

I've just tried turning the watch on and off, first plugged in, then not plugged in, but neither worked.

The useb_modeswitch reset didn't help.

After uninstalling useb_modeswitch and rebooting, dmesg showed:

[  490.262906] usb 3-1: new full-speed USB device number 2 using xhci_hcd
[  490.409574] usb 3-1: New USB device found, idVendor=0e8d, idProduct=0003, bcdDevice= 1.00
[  490.409579] usb 3-1: New USB device strings: Mfr=3, Product=4, SerialNumber=0
[  490.409580] usb 3-1: Product: Product
[  490.409581] usb 3-1: Manufacturer: MediaTek Inc
[  490.447248] cdc_acm 3-1:1.1: ttyACM0: USB ACM device
[  490.447410] usbcore: registered new interface driver cdc_acm
[  490.447412] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[  490.450735] usbcore: registered new interface driver option
[  490.450744] usbserial: USB Serial support registered for GSM modem (1-port)

So it seems to think it's a GSM modem?

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#8 2021-10-16 07:37:38

seth
Member
Registered: 2012-09-03
Posts: 24,102

Re: 'Trolls' kids smartwatch not recognized by Arch.

It shows up as such and that fits the 0003 product hmm

Do you have a link to the manual of the device?

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#9 2021-10-16 09:45:20

Josey
Member
Registered: 2017-10-25
Posts: 8

Re: 'Trolls' kids smartwatch not recognized by Arch.

seth wrote:

It shows up as such and that fits the 0003 product hmm

Do you have a link to the manual of the device?

Here it is: https://hereforgear.co/smartwatch/itime … tch-40-mm/

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#10 2021-10-16 12:07:53

seth
Member
Registered: 2012-09-03
Posts: 24,102

Re: 'Trolls' kids smartwatch not recognized by Arch.

"Keep your child's wrist free of any dirt and oils"
I had hoped for a more technical manual ;-)

On a stretch, do you use the cable that came with the watch (they're sometimes out of spec…)?
There's a factory reset but THIS WILL LIKELY ERASE ALL PERSONAL DATA!

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#11 2021-10-16 17:51:07

Josey
Member
Registered: 2017-10-25
Posts: 8

Re: 'Trolls' kids smartwatch not recognized by Arch.

seth wrote:

"Keep your child's wrist free of any dirt and oils"
I had hoped for a more technical manual ;-)

On a stretch, do you use the cable that came with the watch (they're sometimes out of spec…)?
There's a factory reset but THIS WILL LIKELY ERASE ALL PERSONAL DATA!

Yes, I did see somewhere about another kids smartwatch which didn't connect using the supplied USB cable. I don't think we have the one it came with anymore, but I've tried a few different ones with no luck.

I won't risk a reset because my niece desperately wants the photos/videos off of it, but I think we're running out of ideas!

Thank you again for helping.

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#12 2021-10-16 18:34:14

jasonwryan
Anarchist
From: .nz
Registered: 2009-05-09
Posts: 29,686
Website

Re: 'Trolls' kids smartwatch not recognized by Arch.

Did you actually try any of the methods on the MTP page?


Arch + dwm   •   Mercurial repos  •   Surfraw

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