Problem

Possible reasons

Solution

Unable to switch ON

- Wrong pole of batteries
- Low power supply
- USB connection

- Reinstall batteries
- Change new batteries/connect USB
   for power supply
- Reconnect the USB port

Turn OFF automatically

- Low power supply

- Change new batteries/connect USB
   for power supply
- Reconnect the USB port

Unable to connect to PC

- Connection of USB port
- USB port at PC problem

- Check the USB port and try to
   reconnect
- Change to another USB port

Unable to pronounce

- Low power supply
- Speaker defect

- Change new batteries/connect USB
   for power supply
- Send for service checking

Unable to play mp3

- Low power supply

- Not MP3 file format

- Change new batteries/connect USB
   for power supply
- Only MP3 file format can be open

Unable to open files

- Not support the file format
- Save in wrong folder

- Check the file format
- Check the folder location

Unable to press keypad button

- Keypad defect

- Change keypad

Hang/System error

- Improper usage

- Press [reset] button