Step by step:

- On your PC, open a terminal:

+ adb shell
+ gdbserver :1024 /data/your_application

- On your PC, open a new terminal:

+ adb forward tcp:1024 tcp:1024
+ arm-eabi-gdb
+ shared
+ target remote :1024

That's all!

Today my friends asked me to disable 3G on his GPhone. He does not want to pay for a huge bill every month. Because some applications can access to internet automatically. I made a search on Google and found some answer “let’s use flight mode”, oh he only want to disable 3G, not phone network. Go to Settings/Wireless controls/Mobile networks and check to “Use only 2G networks”, this does not turn of your internet bill totally, we still see the icon E (edge) on the top right of the phone. I’m lazy to register a nick to reply on the forum, so I make a post here for people who has the same question.

I suggested him to change the parameters of 3G network, so applications cannot made a connection. Go to “Settings/Wireless controls/Mobile networks/Access Point Names/”. In my case (I’m using Orange network) there are 2 APNs here: “Orange MMS” and “Orange World”. Choose “Orange World” and rename some values of parameters (add a suffix), don’t delete them, because you may need to use 3G network at any time. “Click” on “Port”, change “8080” to “8080.myname”, click on “Server”, change the value by adding “.myname”. Ok, now, let’s see on the top right of your phone, can you see the icon 3G? I think that this way should work with all kind of phone, not limited to GPhone.