Hammer 4+ - Battery Usage Guidelines; Device Care and Cleaning; Troubleshooting Common Issues; SIM Card and PIN Problems

© 2018 mPTech. All rights reserved. HAMMER 4+
18
Computer connection
Troubleshooting
Message
Possible solution
Insert SIM card
Make sure SIM card has been correctly installed.
Input PIN
If the SIM card is secured with the PIN code you have to
enter the PIN when turning the phone on and press <OK>.
Network fail
In areas where signal or reception is weak, calls may not be
possible. Also receiving calls may not be possible. Move to
another location and try again.
No one can call me
The phone has to be on and within GSM network reach.
I cannot hear the caller./
The caller cannot hear
me
The mic. should be close to mouth.
Check if the built-in mic. is not covered.
When a headset is un use, check if it has been connected
correctly.
Check if the built-in speaker isn’t covered.
Poor sound quality while
on the phone.
Make sure that the speaker and mic. are not covered.
The connection cannot
be established
Check if the typed-in phone number is correct.
Check if the phone number entered to the [Phonebook] is
correct.
Enter the correct phone number if necessary.
6. Proper phone maintenance.
Proper use of the battery
Battery in this device can be charged with a charger. If the battery level is low, recharge
it. To prolong battery life, let it discharge before connecting the charger. If not used,
unplug the charger from the phone. Excessive charging causes shortened battery life.
The temperature of the battery has an impact on its charging cycle. Prior to the
charging process, cool the battery or raise its temperature so that it is similar to the
room temperature (approx. 20°C/68°F). If the battery temperature exceeds 40°C the
battery must not be charged! Use the battery only according to its intended purpose.
Avoid leaving the battery within a magnetic field range, because it shortens its life. Do
not use a damaged battery. The battery lifespan can be shortened, if it has been
exposed to very low or very high temperatures - this causes interference to the phone,
even when the battery has been properly charged. Do not throw the battery into
flames! Do not throw a worn-out battery – send it or return it to an authorized recycling
point.
Device maintenance
To extend the life of your phone, follow the guidelines. Keep the phone and its
accessories out of reach of children. Avoid exposing the phone to the high and low