LG Electronics A7150 Delete all , Settings

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Contact
Handset to SIM (Menu 8.5.2)
You can copy the entry from the phone memory to the SIM card.
nnNote When contacts with several numbers are copied from the phone
memory to the SIM memory, only the number entered as the main
number will be copied.
The following options are available:
] Keep original:When copying, Original Dial Number is kept.
] Delete original:When copying, Original Dial Number will
be erased.
Delete all Menu 8.6
You can delete all entries in the SIM and Handset.This function requires
the security code except for Voice.
Press the key to return to the standby mode.
Settings Menu 8.7
Default memory(Menu 8.7.1)
Scroll to highlight the Default memory option, then press the left soft key
[Select].
] If you selectAlways ask when adding entry, the phone will ask where
to store.
] If you select SIM or Handset, the phone will store an entry to the SIM
or the phone.