Who can register a jAcoount and How can I register online?
If you failed to log in jAccount, make sure the correct reason,then deal with it.
However you forget username or password , you can get it back.
The procedure of changing jAccount password as following:1. Visit the website http://my.sjtu.edu.cn2. Click the settings on the right up corner of the Browser3. Change password
Sorry!You aren't allowed to change the jAccount name
If you have got your jAccount "myname":1) you will enjoy many service as Email、WIFI and so on.