M Phone User Manual | English
21 |
P a g e
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
Troubleshooting
The time pressing end key is too short.
Please keep pressing hanging mobile phone for
more than three seconds.
Electricity of battery is exhausted.
Please charge the battery.
Battery is wrongly installed.
Please install battery correctly.
Mobile phone can’t be turned on because
of illegal usage.
Please input correct anti-robbery password.
Mobile phone turns off automatically
Possible causes of trouble
Troubleshooting
If the function of turning off mobile phone at
set time is on
If you don’t need the function of turning off
mobile phone at set time, please cancel it.
The electricity of battery isn’t sufficient.
Please charge the battery.
The battery is loose.
Please install battery correctly according to
installation method of battery on the instruction
book.
Mobile phone is turned off automatically
because of illegal usage.
Please input correct anti-robbery password.
PIN/PUK code lock
Possible causes of trouble
Troubleshooting
Wrong PIN number (Personal Identification
Number) / PUK number (Personal Unlock
Key number) is entered.
Please input correct password.
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.
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