Ok I will try tomorrow repeat 3G tests on newest hardware and software versions.

Tested today on new Carambola + motherboard my USB 3G Vodafone K3565-Z.
At least 3 hour works stable.

BusyBox v1.19.4 (2012-04-05 20:42:46 EEST) built-in shell (ash)
Enter 'help' for a list of built-in commands.

_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
ATTITUDE ADJUSTMENT (bleeding edge, r31201) ----------
* 1/4 oz Vodka Pour all ingredients into mixing
* 1/4 oz Gin tin with ice, strain into glass.
* 1/4 oz Amaretto
* 1/4 oz Triple sec
* 1/4 oz Peach schnapps
* 1/4 oz Sour mix
* 1 splash Cranberry juice
-----------------------------------------------------
root@OpenWrt:/#
root@OpenWrt:/# [ 62.630000] usb 1-1: new high-speed USB device number 2 using
dwc_otg
[ 62.840000] scsi0 : usb-storage 1-1:1.0
[ 63.850000] scsi 0:0:0:0: CD-ROM ZTE USB SCSI CD-ROM 2.31 PQ
: 0 ANSI: 0

Hello gedass,

OK so that brings me to the next point, does my Dev board have a defect in this case?
Recall I also mentioned that sometimes I get a reboot when plugging in a USB device.

Thanks,
Serge

Hi,

I have tried two different brands of 3G modems with same result and more recently I get the same thing happening with a USB Hub which does not even have a modem connected to it.

I will try the Cap and see what happens.

Thanks,
Serge

Ok.
Try to :
1: 40 pin of Carambola module connect direct GND (ground)
2. Check connectors : J1, J7 and J8
3. Put latest firmware to Carambola from repository:
http://pkg.8devices.com/v2.0/carambola/ ... pgrade.bin

If issue will assert again we would like to get this board back.We will send another new board to you.

Thanks,

Just to be clear, the image you have provided in your post is the same version I would get when building myself from the git Repo master branch ?

Thanks,
Serge

Same problems with your provided firmware.

I have ordered a second devboard + carambola to test, when I receive it I can test and can also send you back the current one I have if the new one works better.

Thanks,
Serge

Its strange because for example today the 3G has been up for 6 hours and no bus resets!

Then if I move the case around a little I get a bus reset, there has to be some sort of bad contact or something!
I might also try another power source...

Serge