On Tue, 20 Mar 2012, Jack Carnegie wrote:
> What dongle works best in your experience?
> A link for purchase would be cool ;)
>
> I tried E173 but had no luck with it, so I was seeking to purchase few
> others just to try them out.
What's your problem with E173? There might be issues with either software
or hardware. I've had several 'vague' problems with other models as well,
but those seem unrelated to the dongle model.
For example, I couldn't get it to work with USB1, it needs USB2 to get
voice data through. Also, using a 'cheap' USB2 switch can have impact on
dongle stability. And finally, USB ports that cannot provide enough power
can be quite a dealbreaker. (I needed to solder a modified USB cable that
connected the +5V wire to the PSU's floppy power connector to get enough
power to the dongle.)
For another Mainboard, it clearly had issues with the chipset. Tried with
another (more recent) mainboard and worked like a charm.
That said, I've still got some weird issues with K3765 dongles with S/N
starting with R04 (R05 works better) on some networks. K3520 also works
fine. (Huawei versions for both! Not the ZTE versions!)
If you want to do some experimenting, try to browse through eBay, there
should be plenty.
--
Maarten
What's your problem with E173? There might be issues with either software
or hardware. I've had several 'vague' problems with other models as well,
but those seem unrelated to the dongle model.
For example, I couldn't get it to work with USB1, it needs USB2 to get
voice data through. Also, using a 'cheap' USB2 switch can have impact on
dongle stability. And finally, USB ports that cannot provide enough power
can be quite a dealbreaker. (I needed to solder a modified USB cable that
connected the +5V wire to the PSU's floppy power connector to get enough
power to the dongle.)
In currently using a K3765 with firmware 11.126.03.09.00. So far, it's
been fine for weeks.
(Also tried the E1762 "upgrade" but I couldn't even get ppp data
connections using that firmware.)
When using it with one telco's SIM cards, it has some trouble keeping
a steady connection to cell towers when idle. However, when an active call
is made through the dongle, it suddenly thinks a "dubious" cell tower is
good enough to make the call. It usually doesn't change call towers during
a conversation.
Also, when it eventually manages to connect to 1 specific cell tower (as
seen on cell id from AT+CREG output), it will no longer wildly hop around
between different cell towers. Maybe it's a problem with my location and
having 'too many' cell towers that can be connected to. I've seen only 8
re-registering messages over the past 5 days. (Slightly modified the
chan_dongle source to add more detailed logging for those events.)
I didn't have any hardware lockup issues. Although I must say that I've
always used the dongle in 3G-only mode (not even 3G-pref mode), since I
remember having voice calling problems when in GSM/GPRS mode. Adding a USB
hub into the mix usually also breaks things, but not as far as locking up
the computer.
If you experience hard system lockups, I'd suggest you connect the dongle
directly to a usb connector on the mainboard io-shield, set the dongle to
3G-only mode, and try another PSU in the computer. If that doesn't help,
you might want to try and get Vodafone to replace the dongle and see if
that helps.
Or try using another computer (different hardware configuration) to see if
that helps.
I recently managed to do some more testing with E160 and E160G dongles,
upgraded to firmware 11.609.10.02.432, and those also work fine. (Needed
to patch chan_dongle code to do 7bit USSD for E160, but now even ussd
works for these modems.)
HTH..
--
Maarten
when you mean dongle dies! is it mean you lost port, example
/dev/ttyUSB2 is gone . (usually connected to three port USB0 USB1
USB2)
and try to check the light (modem), when it dim so weird longer than
usually in normal.
-
Syeh Abidin