Echo Shock User Manual
22
Please ensure you have a valid SIM card. Please
contact your network provider for further
information
.
Display
information while
turning on
Check if the SIM card (insert the SIM card) is
installed correctly
Handset lock password. If the handset lock is
activated, you have to input handset password
before using.
Input PIN. Inputting PIN while turning on each time
is activated, you have to input the PIN code.
Input PUK code: Having input wrong PIN code for 3
times straight will lock the SIM card. You need to
input the PUK code provided by your network
provider.
Poor quality of
calling
Please check if the sound volume is tuned
improperly
Summary of Contents for Shock
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