are you sure about your bootrom before use redsnow use?
[You must be registered and logged in to see this link.]
Guide :
1. Connect your phone with PC and switch off
2. Open [You must be registered and logged in to see this link.] and choose Original firmware.
3. If you have newboot just press “yes”
4. now click “Next”
5. Choose “Just Enter pwned DFU mode right now”
6- now click “Next” again “Next” and follow the screen.
* you can useb [You must be registered and logged in to see this link.] for pwned DFU mode too.
After that open [You must be registered and logged in to see this link.] and press “Shift + Restore” and choose custom firmware 4.2.1
it will finish very quickly
Once you update you firmware
1. Connect your phone with PC and switch off
2. Open redsnow and choose Original firmware
3. If you have newboot just press “yes”
4. now click “Next”
5. Choose Only “Install Cydia”
6. now click “Next” again “Next” and follow the screen.
If
you r getting White Cydia Icon just switch of your phone and open
redsnow choose Stock firmware 4.2.1 and choose the option “Just boot
tethered right now” and click “next” again “next” then follow the
screen then you will see the cydia.
Finally you can see your phones is with your old Baseband. now just you can install the [You must be registered and logged in to see this link.] 1.2 from Cydia
[You must be registered and logged in to see this link.]
[You must be registered and logged in to see this link.]
Guide :
1. Connect your phone with PC and switch off
2. Open [You must be registered and logged in to see this link.] and choose Original firmware.
3. If you have newboot just press “yes”
4. now click “Next”
5. Choose “Just Enter pwned DFU mode right now”
6- now click “Next” again “Next” and follow the screen.
* you can useb [You must be registered and logged in to see this link.] for pwned DFU mode too.
After that open [You must be registered and logged in to see this link.] and press “Shift + Restore” and choose custom firmware 4.2.1
it will finish very quickly
Once you update you firmware
1. Connect your phone with PC and switch off
2. Open redsnow and choose Original firmware
3. If you have newboot just press “yes”
4. now click “Next”
5. Choose Only “Install Cydia”
6. now click “Next” again “Next” and follow the screen.
If
you r getting White Cydia Icon just switch of your phone and open
redsnow choose Stock firmware 4.2.1 and choose the option “Just boot
tethered right now” and click “next” again “next” then follow the
screen then you will see the cydia.
Finally you can see your phones is with your old Baseband. now just you can install the [You must be registered and logged in to see this link.] 1.2 from Cydia
[You must be registered and logged in to see this link.]