Samsung i909 mobile phone, after deleting SMS, it is too troublesome to delete the corresponding SMS in the contact-history. Is there any other way?

You can consider brushing the machine, if not, install a super short message to replace the original short message program.

But it seems that the landlord is suspected of doing bad things.

In addition, you can install a 360 mobile phone guard. The private space of this software can prevent the specified phone calls and short messages from appearing in the SMS and phone records of the system.