How do I transfer contacts from Samsung B2100 to Samsung Galaxy S3

SOURCE: hi, i have samsung galaxy

Hi,
Go to contacts, press menu button (the left touch button) then press "Import/Export" then you have all the options you need.
-If part of your contacts are stored on your SIM card, then you need to import them
-When you have all the contacts on your phone you can Export them to your SD card, which you can access from your laptop
-Furthermore: all your contacts are synced to your Google account, so you don't ever have to worry about losing them.

SOURCE: How can i transfer contacts from my old cell to

goto menu then goto phonebook or contacts then scroll down you will find an option of copying or moving then copy or move the contacts from phone memory to sim memory then insert your sim into your new mobile then you will see all of your contacts are there.

SOURCE: samsung galaxy S3 screen dims when it goes to internet

is the phone on light saver mode or is the wire bad?

SOURCE: sim network unlock pin for samsung galaxy s3

You can unlock it by codes (by IMEI officia unlock codes) or you can unlock it by cable. Both are available from http://www.unlocksamsungonline.com/unlocksamsung/I9300

This website is a trustable resource and in operation since 2006.

SOURCE: My Samsung Galaxy S3 Showing Downloading Do not turn off target !! What I had to do?

yes you can remove batt.