What to do if my ZHIWHIS ZWS-603 Radio cannot charge?
If your ZHIWHIS Radio isn't charging, verify that the external adapter or USB cable is correctly connected. Also, inspect the adapter and USB cable for any signs of damage.
What to do if my ZHIWHIS ZWS-603 cannot play audio from the Micro SD(TF) card or USB drive?
If your ZHIWHIS Radio won't play audio from a Micro SD(TF) card or USB drive, the card or USB drive may have poor compatibility. Try another card or USB drive. Alternatively, the files might be damaged or in an incorrect format. In this case, delete the file and try again.
What to do if my ZHIWHIS ZWS-603 Radio cannot be connected to a computer?
If your ZHIWHIS Radio is not connecting to your computer, the USB cable may be damaged. Please try using another USB cable.
Why does my ZHIWHIS ZWS-603 sound out of the speaker when using earbuds?
If you are hearing sound from the speaker when using earbuds with your ZHIWHIS Radio, the earbuds may have a MIC function. Try using earbuds without a MIC function.
What to do if the speaker on my ZHIWHIS Radio does not sound?
If the speaker on your ZHIWHIS Radio isn't producing sound, turn it up.
Essential safety tips, battery care, and environmental handling instructions for safe product use.
Detailed description of all external parts, buttons, ports, and display elements of the ZWS-603 radio.
Explains the information displayed on the LCD screen when the device is in radio mode.
Details the LCD screen information shown during TF card music playback.
Describes the LCD screen content for external audio source playback via AUX input.
Illustrates the LCD screen information when the device is operating in Bluetooth playback mode.
Explains the LCD screen indicators and information presented during the recording process.
Overview of device functions and definition of key press methods (short, long, hold).
Instructions for installing, replacing, charging the lithium battery, and understanding battery status indicators.
Procedures for charging the battery via external adapter or PC, including notes on charging while using.
Covers manual tuning, automatic search, direct frequency input, and shortwave band selection.
Procedures for saving, recalling, and deleting preset radio stations.
Configuration options for AM stepping frequency (9 KHz or 10 KHz).
How to activate and deactivate the radio's mute function.
Steps to pair the device with a mobile phone and play audio wirelessly.
Instructions for inserting TF card and initiating music playback.
Configuration for playback modes, EQ settings, and directory navigation.
Steps for connecting the device to a computer via USB for data transfer and driver installation.
Procedure for recording audio using the built-in microphone.
Procedure for recording audio from an external source via the AUX input.
Procedure for recording audio directly from the radio broadcast.
Procedure for recording audio from a connected Bluetooth device.
Operations for playing back and deleting recorded files.
How to lock and unlock the device's keys to prevent accidental presses.
Accessing and navigating the system setup screen for various configurations.
Configuring the automatic shutdown timer for power saving.
Solutions for common problems like power, computer connection, and sound issues.
Technical details including storage, frequency ranges, playback formats, and dimensions.
Important warnings regarding choking hazards and protecting hearing.
Details on the 12-month warranty period and conditions for invalidity.
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General