Troubleshooting - Sharp DM007SH User Manual

Troubleshooting

Troubleshooting

[ General
Problem
Was " pressed long
enough?
Battery may need to
Handset won't
be charged or
power on
replaced.
Battery may not be
properly installed.
Operation is
Is Switch On/Off in
restricted after
PIN Entry On?
power on
USIM Card may not
be properly inserted.
Insert USIM Card
appears
The correct USIM
Card may not be
inserted.
There may be debris
on IC chip/terminals.
REFRESH appears Handset may have
and handset been dropped or
returns to Standby subjected to shocks.
Keypad Lock may be
active.
Operation is
17
restricted
Function Lock may
be active.
6
17-
Possible Cause Solution
Press " longer.
Charge battery or install a
charged battery.
Install battery properly
(P.17-4).
If On, PIN is required. Enter
PIN according to onscreen
prompt.
Power off and check that
USIM Card is properly
inserted, then restart
handset. If the message still
appears, USIM may be
damaged.
Make sure the correct USIM
Card is inserted. The inserted
USIM Card may not be valid.
Clean relevant parts with dry
cloth and re-insert.
Handset failed to recognize
USIM Card temporarily. This is
not a malfunction.
Cancel Keypad Lock (P.2-14).
Cancel Function Lock (P.13-2).
Problem Possible Cause
Battery strength
Ambient temperature
indicator flashes
may be outside 5oC
when not
to 35oC.
charging
Saved entry/
folder does not Entry/folder may be
appear on set to Secret.
handset
Handset/AC Charger
may warm while
charging.
Handset/AC
Handset may warm
Charger feels
during extended
warm
periods of use.
Handset may warm
during Video Calls.
Memory Card may
Cannot access
not be properly
Memory Card files
formatted.
Did you leave
Clock settings
handset without
are lost
battery?
Solution
Use within an ambient
temperature of 5oC - 35oC.
Activate Show Secret Data
(P.13-3).
Unless handset/AC Charger
is too hot to touch, warmth is
considered normal. Always
avoid prolonged skin
contact to prevent burn
injuries.
Use DM007SH-formatted
Memory Cards.
Clock settings remain even
when removing battery for
replacement, etc. However,
if handset is left with no
battery or an exhausted one
for an extended period of
time (approximately one
hour), Clock will need to be
reset.