reformat 7610(OS 7)

[onnchai0]

i need some explaination about how to format my 7610 and i need the file of the os7 also thx....

[sopta007]

well, this is probably not the best place for this kind of question, as this is a "developer discussion board"...
Anyway, look here:

http://www.newlc.com/article.php3?id_article=184

But you should rather ask the one who sold you the phone...