Hello,
Vodafone don't make a piece of conenction management software for android for use with USB modem.
There may be apps in the Google Play store that do this but how they work and what USB modems they support is all down to how the app itself has been written. If you wanted to find out how the app works, what the fields within the app means or which dongles the app will support you'd need to raise this query with the developer that wrote it.
Because of all the variables above it's generally a better (and a more consistently reliable) idea to use a Mobile WiFi device with an android table (if your tablet has WiFi) or the embedded sim (again if your android device has one of these).
If your tablet doesn't have WiFi or an embedded sim then an app might be your only option to get a USB modem working with your android tablet, but from looking at the apps in the store that do this, many are full of disclaimers about which devices are supported and the majority need root access.
Really what I'm saying is getting an android tablet and a USB modem working is a bit of a long shot.
So here are some bits that might help.
Define where you're connecting to
These are your Vodafone specific settings. They define where on the Vodafone network the USB modem you're using will try and connect to. In this case it woudl be the APN, username and passwrord. Depending on the type of account you have your APN could be one of the following:
internet (if you are a contract/pay monthly customer)
smart (if you're a pay as you go customer on a £5 for 250MB lasting up to 30days plan)
pp.internet (if you're a pay as you go customer on a £15 for 1GB, lasting up to 90 days plan)
ppbundle.internet (if you're a pay as you go customer on a £15 for 2GB lasting up to 30 days plan)
In all cases the username and password are: web
Modem commands
If the app being used works by sending serial commands to the modem then it's probaly using the APN information to complete commands that most USB mobile modems use to connect in this manner. These would be for a contract customer):
at+cgdcont=1,"IP","internet"
atd*99# or atd*99***1#
at+cgdcont=1,"IP","internet" means:
Attention, create GPRS data context, use modem memory profiel 1, use IP data, connect to the internet APN
atd*99# means:
Attention, dial *99#
The 1 in the at+cgdcont string and the 1 in *99***1# are directly related. In the at+cgdcont string the 1 defines where the modem will store these settings (a memory profile). the 1 in *99***1# defines which memory profiel to use when connecting. So you could use at+cgdcont=4,"IP","internet" and *99***4# together.
Bear in mind that when making a GPRS, EDGE, 3G or HSPA connection you're not actually dialling a telephone number. *99# is just used to activate the previously defined at+cgdcont settings.
Bear in mind that the app might fill in all the other pars of these commands when you enter just the APN, but again this is down to how the app is written.
The App
If the app has very obvious fields labelled things like APN, username, password and dial up number then what's written above should cover these. If it has additional fields or fields labelled in a similar nature then it would be worth givign these a go, but as there's no garuntee that each field relates specifically to what I've written above there's no guarantee it will work. Also the app needs to know which device to send the commands mentioned above to. How it does this is something specific to the app itself, or the android OS.
The last post mentions a device number. My guess is that this is how the app knows where to send the commands mentioned above, or identify the correct device to use. I'm guessing this based on *99# not working, and that an app or the OS having the need to know which device the commands should be sent to. As an idea I woudl try setting the deivce ID to 1 then trying to connect, I'd retry this increasing the device number by one and trying to reconnect each time.
Another thing that might be worth trying is using the Huawei's (the manufacturer of yoru USB modem) Vendor ID (VID) or Product ID (PID) as the device number. THe VID and PID are the identifiers that USB devices present to an OS to identify themselves. The K3770 VID and PID are 12D1 and 14C9 respectively.
To definitively find out what the device number field is for you'd have to contact the app developer to find this out. If it's not an app that you've downloaded that you're using and these settings are found in an app or settings that came with the Android device then it's possible that this is additional software that the tablet manufacturer has installed. If the latter is the case then the tablet manufacturers would be the best point of contact to find out what the device number field is, what should be put in there and if the K3770 will work with your tablet.
I hope this helps.
