Verykool i672 User Manual
Page 30
Troubleshooting for Simple Troubles
Page 41 of 44
Note:
1.
If PIN number is inputted wrong for 3 times successively, many functions of SIM card and mobile phone are
locked, please read details in “ safety settings” in P59.
2.
Correct PIN number and PUK number can’t be guaranteed, please contact operator or retailer.
Poor quality of conversation
Possible causes of trouble
Troubleshooting
Current signal strength changes sharply.
Maybe you are in a status of moving at high speed (in a
train or motor, ect.), judge by signal strength indicator
and choose a place with strong signal strength to
communicate in order to assure conversation quality.
You are in the location where signal is
badly received
Please go to the open place
Inability to answer mobile phone
Possible causes of trouble
Troubleshooting
Call forwarding is set.
Please cancel call forwarding according to your demand.
Call barred is set.
Please cancel relevant barred function of Call barred
according to your demand.
Inability to dial mobile phone
Possible causes of trouble
Troubleshooting
Mobile phone is power off.
Please turn on your mobile phone.
Mobile phone is out of network service
area
Please confirm network is in normal service status.
Proper SIM card isn’t correctly
inserted.
Please confirm if your SIM card can be normally used.
Call barred is set.
Please cancel relevant barred function of Call barred
according to your demand.
Keyboard is locked automatically.
Please select left soft key+# key, unlock keyboard
41