Read between the lines

Edit: For typo, USBDialup is now Instinct. This isn’t a beginners guide so you need to install ppp and such on your own.

I was going through a lot of craziness setting up my Sprint Instinct to use as a modem, but I figured it out tonight.

First, make sure your phone is in Modem mode.  I do that you need to go to the Dialer portion of your phone and dial ##USB# (##872#) and it will change to Default USB: MDM.  If it says Default USB: MSC then you’re in flash card mode and you’ll mount the flash drive and have no modem access.

You may need to power cycle your phone.  I didn’t test it otherwise, leave comments with what you find out.

If you type dmesg you’ll see mention of device ttyACM0, this is your modem device.  The rest is setting it up.

[10502.038262] usb 1-1: new full speed USB device using uhci_hcd and address 21
[10502.201491] usb 1-1: configuration #1 chosen from 1 choice
[10502.251216] cdc_acm 1-1:1.0: ttyACM0: USB ACM device


Connecting your Sprint Instinct is much like connecting your Treo 650 Palm device.

/etc/chatscripts/Instinct:
TIMEOUT 5
ABORT '\nBUSY\r'
ABORT '\nERROR\r'
ABORT '\nNO ANSWER\r'
ABORT '\nNO CARRIER\r'
ABORT '\nNO DIALTONE\r'
ABORT '\nRINGING\r\n\rRINGING\r'
'' \rATZ
TIMEOUT 12
OK ATD#777
TIMEOUT 22
CONNECT ""

/etc/ppp/peers/Instinct:
noauth
connect "/usr/sbin/chat -v -f /etc/chatscripts/Instinct"
defaultroute
usepeerdns
/dev/ttyACM0
115200
local
novj

To connect:

sudo pon Instinct

To disconnect:

sudo poff Instinct

That’s it.  Do a ifconfig ppp0 and you’ll see your IP and be able to surf the web. If you want make gnome buttons to turn it on or off then make sure you run the application in a terminal and you’ll be fine.