How long 120mg. well, the half-life of methadone can be up to 59-hours, so after 2 and half days you would still have 60mg's in your system. But this doesn't take into account multiple doses.
A third type of lock is a security lock. This lock is like a typical password, to prevent someone other than the owner from using the phone. If activated accidentally, the user manual or carrier customer service can usually tell you the default code.
When enabling SIM Lock, your device prompts you to enter a PIN code: 1  The default PIN code for an AT&T SIM card is 1111. 2  Change the default PIN code for more security.  After activating SIM Lock, you must enter the PIN code if you move the SIM card to another device.