Troubleshooting For Simple Difficulties - STK Professional Audio M PHONE User Manual

8 Troubleshooting for Simple Difficulties

While using your mobile phone, if abnormal condition comes out, please refer to following
instruction to rule out malfunctions. If it doesn't help, please contact designated maintenance
center.
Mobile phone can't be turned on
Possible causes of trouble
The time pressing end key is too short.
Electricity of battery is exhausted.
Battery is wrongly installed.
Mobile phone can't be turned on because
of illegal usage.
Mobile phone turns off automatically
Possible causes of trouble
If the function of turning off mobile phone at
set time is on
The electricity of battery isn't sufficient.
The battery is loose.
Mobile phone is turned off automatically
because of illegal usage.
PIN/PUK code lock
Possible causes of trouble
Wrong PIN number (Personal Identification
Number) / PUK number (Personal Unlock
Key number) is entered.
Note:
•
If PIN number is entered incorrect for 3 times successively, many functions of SIM card
and mobile phone are locked, please read details in "safety settings".
•
Correct PIN number and PUK number can't be guaranteed, please contact operator or
retailer.
M Phone User Manual | English
Troubleshooting
Please keep pressing hanging mobile phone for
more than three seconds.
Please charge the battery.
Please install battery correctly.
Please input correct anti-robbery password.
Troubleshooting
If you don't need the function of turning off
mobile phone at set time, please cancel it.
Please charge the battery.
Please install battery correctly according to
installation method of battery on the instruction
book.
Please input correct anti-robbery password.
Troubleshooting
Please input correct password.
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