Share your experience!
This process will help you resinstall the old backup and restore on your x10 after the upgrade to Android 2.3.3
1. On your phone: go to settings -> applications -> 'check' unknown sources
2. On your phone goto Android Market and download: IO File manager
3. On your PC: Download this file http://www.elita-clan.com/downloads/...re_v010935.apk
4. Connect your phone to pc and copy downloaded file to your sdcard.
5. Disconnect phone from pc.
6 On your phone open IO file manager and look for download file on your sdcard and open it.
7. Follow instructions to install program and at the end click 'OPEN' to start the app.
8. This will now allow you to have the original program to restore your files back onto your X10
Hello Klawerman,
I'm really greatful for U!
U saved my life with this help!
Thank U!
Have a beauty day, like mine! 
Timea (Hungary)
I'm glad I could help
Thank you so much just downloaded the new software and booted up my phone and saw there was no backup and restore app so thanks so much to you I was able to get all my important files and contacts back.
I know I am very behind in this discussion. I got my Xperia x10 in Feb. 2010 and have not updated it at all. I have tried to download the backup restore, however, I don't have settings -> applications -> 'check' unknown sources (I don't have the 'check' unknown sources) and now an not sure what to do. I really do want to update my phone. Thanks for any help you can give....
the reason for that is probably because you have a AT&T X10 or from another network that doesn't allow you to sideload apps
don't worry about it you can sync and backup with other methods
Contacts
just to play it safe sync your contacts w/ google if you haven't already
SMS/MMS
if you don't want to use the backup & restore app then
Install "backup SMS" to back up your SMS and MMS to your Gmail
https://market.android.com/details?id=com.zegoggles.smssync&feature=search_result
or your SMS use
"backup & restore SMS"
https://market.android.com/details?id=com.riteshsahu.SMSBackupRestore&feature=search_result
or for your MMS use "Save MMS"
https://market.android.com/details?id=com.schwimmer.android.mmsextract&feature=search_result
Call Logs
And for call logs this is great
https://market.android.com/details?id=com.yang.android.ansta
2.3.3 might not be available through PC Companion or Update Service
if it is not available then you can update your phone manually
this is how
Hi Please help!
I have just upgraded my x10 and lost the back up and restore app. I have followed all the various advice above and now have managed to re install the BU app but when I try to restore my settings etc it processes the restore and the gives me a message reading "error" "could not restore data".
Any help would be greatly appreciated.
TY
try to restore part by part, first your SMS, then your MMS, then your contacts
Hi ive downloaded all the files that are mentioned down this thread, but when i try to restore my phone all i get after clicking on the downloaded backup and restore app in io file manager is 'no supported files' please help!!!!!
how do i turn the file into an apk file????