Security Copie Duplicated

My Iphone is beeing sent to the Tecnical Support while I am using a friend´s Iphone. Can I use my security copie I did the day before in my friend´s iphone and then when my Iphone would be returned to me continuing using the same copie? I don't know if I use the same copy in both Iphones would give me any problem or not. My intention is once I receive my terminal, would delete my friend´s and continue using same datas I had in mine.

I really appreciate your help.

Thank you!!