How to back up Rom

[Guest mourgolukos]

Hello again. Samsung updated my greek rom to 6.5.3 and i would like to back up so i could share with others in here. Ive searched the forum and did not find something about it. Any help?

[Guest mythos.gr]

Put this exe file on your memory card and then run it. After a while a "job done" message will apear.In your memory card check the new file that created with name "dump.bin".Share this file with us tnx!