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12
Troubleshooting
Problem
Possible cause
Possible corrective action
Phone does not power
on/does not charge
Delay in phone powering on
No action required. Your Sendo S1 phone may take a
few seconds to power up, this is normal.
Battery empty
Fully charge the battery and then press
d
.
Don’t worry if the battery icon does not change
immediately, but do check if the charging icon has
appeared after half an hour.
Battery contacts dirty
Clean contacts on battery and phone with a dry cloth,
attach battery, wait a few seconds and press
d
.
Charger incorrectly connected
Check the wall socket, and the connection to the
phone.
Battery
How long should I charge the
battery the first time?
12 hours continuous, while switched off.
I don’t get as much
battery life as I
expected
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.
Charge the phone regularly.
For longer operation times, discharge the battery
from time to time by leaving your phone switched
on until it turns itself off and the battery is fully
discharged.
The battery can be charged and discharged
hundreds of times, but it will eventually wear out.
When the operating time (talk time and standby
time) is noticeably shorter than normal, it may be
time to buy a new battery.
“Insert SIM” is
displayed when I
switch on the phone
SIM card is incorrectly inserted
or missing.
Check that the SIM card is
positioned correctly. Try again.
SIM card is damaged or dirty
Visually check the SIM and clean the contacts with a
soft, dry cloth if necessary. Try again.
The PIN code is
blocked, or
My phone asks for a
PUK code
You have entered the PIN code
incorrectly 3 times
Enter the PUK (Personal Unlock Key) code supplied
with the SIM card. If you do not have this code, contact
your network service provider.
>
Note:
The number of incorrect entries depends on
your network service provider.
The PIN2 code is
blocked, or
My phone asks for a
PUK2 code
You have entered the PIN2 code
incorrectly 3 times
Enter the PIN2 PUK (Personal Unlock Key) code
supplied with the SIM card. If you do not have this
code, contact your network service provider.
>
Note:
The number of incorrect entries depends on
your network service provider.
