Guangdong Zhuoning Technology Co., Ltd..-M21_FAQ

M21 Technical Support Center

Here you can get M21 series introductory teaching, resource download, troubleshooting or after-sales maintenance services such

FAQ

- 2026-08-21
  1. User manual, download link of M21
- 2026-08-21
  2. What should I do if the M21 crashes or freezes? Forget Password?
- 2026-08-21
  3. Buttons and ports instruction of M21
- 2026-08-21
  4.How to use the D.MODE (Desktop Mode) and super high gain mode on the M21?
- 2026-08-21
  5.How to access the storage/SD card after connecting the M21 to a computer?
- 2026-08-21
  6.How to upgrade the M21?How to resolve the issue of the M21 being stuck on the Zhuoning logo after updating?
- 2026-08-21
  7.How to install third-party applications?
- 2026-08-21
  8.How to switch the working mode of the M21?
- 2026-08-21
  9.How to enable the USB DAC function?
- 2026-08-21
  10.How to use the M21 as a Bluetooth receiver?
- 2026-08-21
  11.How to use the M21 as a Bluetooth transmitter?
- 2026-08-21
  12.How to use USB audio functio to connect the M21 to an external decoder?
- 2026-08-21
  13. How to output coaxial digital signal from M21?
- 2026-08-21
  14.Charging and battery life of the M21
- 2026-08-21
  15.How to use the Zhuoning Link function?
- 2026-08-21
  16.How to use the AirPlay function?
- 2026-08-21
  17.How to use the DLNA function?
- 2026-08-21
  18.Instructions for Settings->Audio menu
- 2026-08-21
  19.Instructions for Settings->Display
- 2026-08-21
  20.Instructions for Settings->Global menu
- 2026-08-21
  21.How to change the language on the M21? Lyrics display, screenshot of the M21
- 2026-08-21
  22.M21 indicator light description
- 2026-08-21
  23.How to enter the tape mode?
- 2026-08-05
  24. How to use the Zhuoning Cast function in M21?
- 2026-08-28
  25. How to insert/eject the SD card to M21?

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