[inoi8u]

hiiii i installed a thing off cydia called "mmsactivat2g" some thing like that, now my jailbroken iphone 3.0 wont turn on or connect to my pc, i mean like i can turn it on but it would stay on the boot logo and wont turn on. i tried connecting it to the pc and it wont connect, it would just turn on and stay on boot logo.

any suggestions?

[iGuy]

The app had nothing to do with ruining your phone - it's an app for a 2G as it says in the instructions & app name. If you decide to download it to a 3G you can't then turn around and blame the app.

I think you've got a brick now reading some of the other posts - not even DFU seems to be helping some.

[ragemon]

Hi my Iphone 2g got stuck to apple logo after downloading activate 2g mms on Cydia...im running firmware 2.2.1...... can I get an explanation why this one would happen..how to reboot it..and fixed it...I would appreciate any help...

[blkcadi]

Originally Posted by ragemon

Hi my Iphone 2g got stuck to apple logo after downloading activate 2g mms on Cydia...im running firmware 2.2.1...... can I get an explanation why this one would happen..how to reboot it..and fixed it...I would appreciate any help...

This app was designed for the new 3.0 firmware, not 2.2.1, first problem solved, sort of.

You will have to try to get your phone in DFU mode and restore your phone.
In case you need them, here are instructions for DFU mode.

INSTRUCTIONS
Step 1. Turn off iPhone
Step 2. Hold down the power and home button.
Step 3. When you see the Apple logo, release the power button but continue holding the home button down.
Step 4. Open iTunes and wait for it to tell you that it’s in restore mode.

Alternative Method:
Step 1. Connect iPhone to USB then listen to the sound when it connect and disconnect.
Step 2. Hold the home and power buttons until hear the disconnect sound then release power button.
Step 3. Wait until you hear another sound then release home button.

Good luck.