How to use backup

Hello,

i upgrapded my version to the newest, and i didnt knew exactly how to make backup of my contacts - i amade USB connection with computer and copy-pasted back up folder to computer - new firmware doesnt have that - what should i do ?

Dude..
U joined this forum in October last year.... I am amazed that you have managed NOT to read any of the threads here on the forum...

Some of the users here have really worked hard and even given step by step instructions... and warnings on what not to do... somehow you seem to have missed all that hard work by the users here..
I would respectfully suggest that you take some time and read the Sticky's atleast so that you can get an idea of things work...

For now, please downgrade to the version you upgraded from, put the backup folder where you copied it from... do a proper backup and then upgrade...These are some issues with restoring backups, but in the threads you will get enough information on the process & procedure that you should follow....