I want to update my phone

try to update 1 more time maybe software corrupted

try reinstalling the software from the nokia pc suite. if it still doesnt help just take it to a nearby nokia care. updating software from nokia doesnt void your warranty remember.......

Try to Upgrade your Firmware using Sony Erricsson Update Service for easy ways.
just download and install Sony Erricsson Update Service,Connect your phone to Computer using data cable,and Sony Erricsson Update Service will found and upgrade your phone firmware automaticly.
you can try download Sony Erricsson Update Service from SonyErricsson Oficial Site.
and you can found The Tutorial for using Sony Erricsson Update service in HERE

i think thats no a Software Problem,but that is a hardware Problem.
Try to Rehoot you IC PA (IC Power Ampilifier) or Change it if still no network.
But if you want to try to Upgrade your firmware,
you need using Sony Erricsson Update Service for easy ways.
just download and install Sony Erricsson Update Service,Connect your phone to Computer using data cable,and Sony Erricsson Update Service will found and upgrade your phone firmware automaticly.
you can try download Sony Erricsson Update Service from SonyErricsson Oficial Site.
and you can found The Tutorial for using Sony Erricsson Update service in HERE

Yes it is, but you may have to update the software to enjoy the kind of features Whatsapp has (for ex:- photo & video sharing)

Hello,

the problem is as a result of software corruption. Your phone operating system is corrupt for one reason or the other. The phone operating system might have gotten virus through bluetooth transfer, internet browsing or via the memory card.

To solve the problem, you need to flash the phone . Flashing the phone means reinstalling the phones operating system software files. The phone will be fully formatted and a fresh operating system files will be reinstalled.

You can use software updater to flash the phone. Download software updater from your phone's manufacturer website. Install it on your computer, open the software updater, connect the phone via usb cable to your computer. Allow the computer to recognize the phone, then click update. Follow all direction from the software updater application. And your computer must be connected to the internet.

I hope you understand this.

Good luck.

If you use a PC, Nokia Ovi Suite can check your phone's current software version and download new versions when they become available, using your PC's internet connection.
Nokia Ovi Suite also helps you to back up your contacts and photos, synchronise your calendar and update other applications such as Maps.
To update your phone's software using Nokia Ovi Suite on your PC:
On your PC, open Nokia Ovi Suite and connect your phone In Nokia Ovi Suite, select Tools > Software updates. From the list of available updates, choose what you'd like to install. It's free to download and use Nokia Ovi Suite. It runs on Windows 7, Windows Vista and Windows XP.
Note: If you're a Mac user, you need to update your software from your device as Nokia Ovi Suite is not available for Mac OS.
or

go to Menu > Settings > Phone > Phone Updates. search for updates on phone and follow onscreen instructions to update.

Deletion of profile from internet settings cannot result in becoming the phone dead. It is just coincidence. Update the phone by using the PC suite & an application to update the software from manufacturer's website as per instructions available in the application.

Update using your phone You can download most software updates straight to your phone, with no need for a PC.
These free software updates from Nokia keep your phone working at its best, with improvements to battery life and performance as well as new features.

1. Select Menu > Settings > Phone > Phone Updates.
2. Select any available updates you want to install.
3. To download, follow the on-screen instructions.

If the software update doesn't appear, learn how to update your phone's software by consulting your user guide
Update using your PC If you use a PC, Nokia Ovi Suite can check your phone's current software version and download new versions when they become available, using your PC's internet connection.
Nokia Ovi Suite also helps you to back up your contacts and photos, synchronise your calendar and update other applications such as Maps.
To update your phone's software using Nokia Ovi Suite on your PC:

1. On your PC, open Nokia Ovi Suite and connect your phone
2. In Nokia Ovi Suite, select Tools > Software updates.
3. From the list of available updates, choose what you'd like to install.

It's free to download and use Nokia Ovi Suite. It runs on Windows 7, Windows Vista and Windows XP.
Note: If you're a Mac user, you need to update your software from your device as Nokia Ovi Suite is not available for Mac OS.

Please update phone software ( Firmware) to stop this problem. Connect your Cell to pc & run pc suit of phone & then click on update phone software. After updating software please restart phone & it will work properly.

Thanks.
Happy to help you.