©
mPTech 2022. All rights reserved. HAMMER BOOST LTE EN
26
Torch
To turn the flashlight on or off, activate the keypad and press the
"0K" (flashlight) key on the home screen for 2 seconds.
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.
Poor sound quality
while on the phone
Make sure that the speaker and mic. are not
covered.
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.
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.
Proper use of the battery
Battery in this device can be charged with a charger. If the level
of energy in the battery is low, recharge it. To prolong battery life,
let it discharge beneath 20% of the battery capacity before
connecting the phone charger and charge it up to 100%. If not
used, unplug the charger from the phone.
