Zte T809 User Manual page 10

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enter the code *983*987# into the dialler to reset your phone.
Battery and Charging Tips
Only use the AC charger and USB lead supplied. Insert the
charger lead carefully.
Be careful to avoid tripping over or pulling on the lead whilst it
is plugged in.
Physical damage to the charging port is NOT covered by
warranty.
The phone can also be charged by connecting it to a
computer using the USB lead supplied.
Avoid high temperatures and direct sunlight. The battery will
not charge above 45°C
Do not leave the battery in a discharged state. Charge the
battery promptly when flat.
Keep your handset cool. High temperatures degrade the
battery more quickly.
Normal charge time is 3-4 hours. Do not leave on charge for
more than 24hrs.
After 2-3 charge/discharge cycles the battery life will improve.
From then on use top up charging to recharge frequently and
always charge promptly when flat.
When not using the phone for long periods charge to approx
40% and remove the battery.
With poor network conditions (less than 2 bars) battery life is
reduced, turn off Bluetooth and Wi-Fi when not in use to
extend battery life.
10

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