34
27.
Simple troubleshooting
fault phenomenon
probable cause
Cannot turn on the computer
Is there a battery; Battery is correct
。
(U)SIM
Card error
(U)
SIM card smudgy, clean (U) SIM card; Reinstall
(U) SIM card; (U) SIM card is damaged, replace the
(U) SIM card
。
Poor reception
Check on the display signal strength indicator, the
number of the signal is 4 said signal is strong, weak
signal under 2 case
。
In poor areas the use of mobile phones, such as
high-rise buildings near or basement, radio waves,
unable to communicate effectively
。
Period in the intensive use of mobile phones, such as
working hours, the line congestion cause can't talk to
each other
。
Associated with the launch of the base station
network built near and far. Regions can require
Internet service providers to provide services
。
Echo or noise
Due to poor network trunk, is a regional problem, or
some bad conversation in line
。
