Reading following parts to know the difference between the YS01 and CN2.
1) The old YS-01 had function 4D and 4C clone. The new one can only for 4D or 4C.
CN2 is same as new YS-01 for 4D.
In my case, use old YS-01 (4D +4C) clone 4D63 Fiesta 2003 doesn’t work, use CN2 work prefeclly.
2) Another difference with the YS01 and CN2 is that the new CN2 must first be unlocked before you can write on it again and has more memory pages, something like 80-bit 4D transponder.
The guide to unlock new CN2 before it can be used agian.
Tools for options:
1) Quickly 4C/4D/46/48 Code Reader + pc software, pc software free download: http://www.chinaautodiag.com/download/quickly-clone-machine-pc-software.zip
2)CN900+ pc software, pc software free download: browse http://www.cn900.net/down/ and find out”CN900 Software” to download.
3) ND900 + pc software, pc software free download: browse “CN900 Software” and find out PC software.
Take new 80bit CN2 for example.
You need to read with the PC software, remove the mark from the box which indicates the page is locked and press write. Works for page 1, 2 and 4. For page 3 you can’t remove the lock but you can write over it anyway.
Quickly 4C/4D/46/48: http://www.obd365.com/wholesale/quickly-code-reader-transponder-auto-programmer.html