Verykool i705 - Manual (Page 37)

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Enter the correct PUK2 to unlock PIN2, and then enter the new PIN2 and
press OK.
If you are prompted to enter the new PIN2 again, enter it and press OK.
PUK2 (8 digits)
The PUK2 code, supplied with some SIM card, is required to change a
blocked PIN2 code. It may be supplied with the SIM card. If not, contact
your network operator.
Note: Ten consecutive times of wrong input will make the SIM card
invalid and you will need to call your network provider for a new SIM card.
Barring Code
To activate call barring, you need a Barring Code. You can obtain the
password from your service provider.
Health and safety information
Charging and Discharging
The charger is designed to be used in temperatures between 0°C to
40°C.
Do not charge the phone in wet and damp conditions.
Use only batteries approved by the phone manufacturer and recharge
your battery only with the chargers approved by the manufacturer.
We strive to produce products in compliance with global environmental
standards
The charger meets the standard for safety of information technology
equipment and office equipment use. It must be used for this purpose only.
Your phone is powered by a rechargeable battery. Full performance of
the battery is achieved only after two or three complete charge and
discharge cycles.
When the battery level is low, “Low Battery” will be displayed on the
screen. If you have selected Alert Tone (Warning Tone of any profile in
Profiles), the phone will sound the alert tone.
When a charger is not in use, disconnect it from the power source. Do
not leave the battery connected to a charger for longer than 12 hours,
since overcharging may shorten its life.
Temperature extremes will affect the ability of your battery to charge.