Transfer of files from Samsung ll to a new HTC desire 310 dual sim

There are many phone transfer tools can support transfer data between Android devices, you can also export your data to ocmputer and then import into htc. Want to manage your Android more effectively, just try Android Mobile Manager.

You can transfer contacts from old Samsung to new HTC desire via SIM card:
1. go to contacts and export contacts to SIM card.
2. insert SIM card to new HTC desire.
3. import contacts from SIM card to new HTC phone.
You can also use some other mobile transfer tools to do the file transfer: http://www.gihosoft.com/mobile-phone-transfer.html

You can syan one android phone data to email ,and that you can transfer email data to another android phone.
Or you can use Android to iPhone Transfer software to transfer data between two andorid phone and two mobile phone.
How to transfer apps between two samsung galaxy
How to backup android phone contacts

SHAREit can help you, very fast and no need of internet, plus it is available both for your smartphone and your PC

You can use Samsung Messages Backup app to tranfer data between two android mobile phone.
See this :How to transfer contacts between two android phone

Coolmuster Phone to Phone Transfer could help, for more: http://www.coolmuster.com/phone-transfer/