Xperia Mini/pro :: Software Does Not A Full Backup Of The Internal Memory?

A lot of things around are in French, so I didn't know that it was an English forum only.So I used a translator and I hope that it is possible to understand.I just know a few words, and the questions are not very easy to write .Here's my first message, if you can read it...ill Android 4 not affect the performance of my gsm? Recommend me?It is a model more former which corresponds to my needs (size, robustness, full keyboard, price... # but that is not as powerful as the new...)I regret moreover that this type of model is abandoned, I do run high risk to my gsm # which explains my requirements: motorcycle, horseback...) !If I switch to Android 4, what measures to take to lose any data?Why does exist - it not, as on the x 10 mini pro, a backup application and restoration which took into account all the parameters?I had to fight to find an app I can retrieve my sms...Most of the proposed synchros do not support all of the data.

In addition, PC Companion tends to demand Outlook, mine is so old that it is not running on this PC.On my other computer, I have tried several routes to reinstall PC Companion, without success...Why this software does not a full backup of the internal memory? For the memory card, just make a copy.So, I went in all directions, with questions in bulk, but I spent hours to configure an device that is never as the successor of mineI have a new problem. I've made everything they said with the battery when I bought the phone. After a few days, the battery can't stand one day. Or I used the phone a few minutes to show pictures, I had a call (2 minutes), nothing more... I'm not really happy because to change the battery, I have to send the phone and they reinitialize everything