SENDO D800 Troubleshooting

D800 Troubleshooting
Problem

Phone does not power on

Phone does not charge

Battery

I don't get as much battery life
as I expected.
"Insert SIM" is displayed
when I switch on the phone

The PIN code is blocked

The PIN2 code is blocked

Poor display

Can't connect to network
Possible corrective action
Fully charge the battery and then press
Clean contacts on battery and phone with a dry cloth, attach battery, wait a few seconds and press
.
Charge for 2 hours. Don't worry if the battery icon does not change immediately. Disconnect and try
again.
Check the mains socket and the connection to the phone.
12 hours continuous.
Charge the phone regularly.
Check that the SIM card is positioned correctly and that the metal clip is slid across and fits firmly over
the SIM card. Try again.
Visually check the SIM and clean the contacts with a dry cloth. Try again.
Enter the PIN unblocking code supplied with the SIM card. If you do not have this code, contact your
service provider.
Enter the PIN2 unblocking code supplied with the SIM card. If you do not have this code, contact your
service provider.
Move to a warmer place and let the phone warm up.
Move into an area of better coverage. If you are in a building, move towards a window.
Contact your service provider.
Try reselecting the network. Switch off and then back on.
Possible cause
Battery empty
Battery contacts dirty
Battery empty
Charger is incorrectly connected.
How long should I charge the battery the first time?
The phone uses battery power when it is switched on even if it is not
in a call. Making calls and playing with the different functions of the
phone will run down the battery faster. The stated battery life is
under optimum conditions.
SIM card is incorrectly inserted or missing.
SIM card is damaged or dirty.
3 incorrect entries
3 incorrect entries
Low temperature
Weak signal
Invalid SIM card
Network not allowed
.