CARLOS NOSSA dot com

At this moment I began to think that this was a hardware problem. All that was left, that I remembered to try before taking the equipment to the repair service, was: reinstall the firmware and format the phone. Firmware reinstallation were preferable because it would preserve all phone's data.

These are all the steps that I followed till having my SX1 "living" again:

1. Download the SX1 firmware update from here. The version depends on country and operator, the newest portuguese version is v12.;
2. Switch on the SX1 with the navigation key pressed - it should enter in flash mode;
3. Connect the phone with the computer by an USB port. It should be used the original Data Cable USB DCA-540. If windows (2000 or XP) cannot find the correct driver, you must install it from the firmware package, which becomes available after running the firmware executable file. Attention: you must choose advanced setup, then enable browse button, and finally choose the folder where you saved the firmware;
4. The firmware upgrade (or reinstall) should begin. It is divided in four steps and it takes about 5 minutes. It's very important that the phone battery has enough capacity;
5. At this time the SX1 should boot. If not (like in my case) the last try is to format the phone, and to do this you must press at the same time the * and # keys and the power button. Ending the formatting process, the phone should switch on, but it will be completely clean. Of course you can restore important data from data backups that you've eventually done.