Motorola E310 Start Here Manual page 44

If you forget your unlock code, try entering 1234 or the last
4 digits of your phone number. If that does not work, at the
E n t e r U n l o c k C o d e prompt:
1
2 keypad keys
3 O K (
42
Press
M
+
)
To
go to the unlock code bypass
screen
enter your unlock code
submit your unlock code