Samsung i750 User Guide - Page 212

Appendix, Troubleshooting

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12 Appendix Troubleshooting Problem Solution The phone does not The battery is completely turn on. discharged. Recharge it fully. "Invalid or missing SIM card. You can still make emergency calls if your service provider supports it" displays. Check that the SIM card has been correctly installed. 210 Problem Solution The bars next to disappear. • If you have just turned on your phone, wait about 2 minutes, until your phone finds the network and receives a signal from the network. • If you are in a tunnel or in an elevator, the phone may not be able to receive the network signal properly. Move to an open place. • This may appear when you move between different service areas. It is normal. The phone does not work properly or does not work at all. Remove the battery from the phone and insert it back into the phone. Turn it on again. Reset your phone.

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210
12
Appendix
Troubleshooting
Problem
Solution
The phone does not
turn on.
The battery is completely
discharged. Recharge it
fully.
“Invalid or missing
SIM card. You can
still make
emergency calls if
your service
provider supports
it” displays.
Check that the SIM card has
been correctly installed.
The bars next to
disappear.
• If you have just turned on
your phone, wait about 2
minutes, until your phone
finds the network and
receives a signal from the
network.
• If you are in a tunnel or in
an elevator, the phone
may not be able to
receive the network signal
properly. Move to an open
place.
• This may appear when
you move between
different service areas. It
is normal.
The phone does not
work properly or
does not work at
all.
Remove the battery from
the phone and insert it back
into the phone. Turn it on
again.
Reset your phone.
Problem
Solution