User's Manual

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message about
insufficient
memory
Delete applications that are no longer needed.
Stop applications that are not currently in use. The method to
view the application in execution is to press and hold the main
menu key to display the currently used application.
Reset this device.
6.2 Device Maintenance
Maintaining this product can ensure the normal operation of your product and
reduce the risk of product damage:
 Do not place the product in a high temperature and high humidity
environment;
 Avoid prolonged exposure to strong light or strong ultraviolet rays;
 Do not drop the product or make it have strong hit;
 Do not disassemble, repair or modify this product without authorization;
 When storing or carrying this product, avoid storing it with flammable,
explosive or corrosive materials;
Note: During the warranty period of the P9IV handheld, if there is a performance
failure, consumers can contact the local dealer for after-sales service.