DJI Mic not working or not recording: troubleshooting checklist

Most "DJI Mic 2 not working" problems come down to four things: a flat battery, transmitters that lost their link to the receiver, audio sent to the wrong port or app, or internal recording that was never started. Charge everything, relink in the case, and watch the receiver's level meters while someone talks. That one check tells you which half of the system has the problem.

Mic 2 fixes, in order — Work through DJI Mic 2 problems in this order. Most failures are power, linking or output settings, not broken hardware.

Quick checklist

Power. Hold the transmitter power button for two seconds. A solid red light means 0 to 10% battery. Charge in the case or by USB-C. See Mic 2 not charging.
Link. Transmitter lights should be solid green. Blinking green means not linked, and blue means Bluetooth mode. Put all three units in the case to relink. See Mic 2 not pairing.
Mute. A recording LED that pulses red means the transmitter is muted.
Meters. If the receiver's meters move but your camera or phone hears nothing, the problem is the cable, port or device settings. See receiver output not working.
Firmware. Update transmitters and receiver to matching versions. See DJI Mic 2 firmware update.

Not recording internally

Each Mic 2 transmitter can record its own backup to 8 GB of storage. If you find no files:

Start it. Press the transmitter's record button once (the recording LED turns solid red), or tap REC for that transmitter after swiping up on the receiver.
Use Auto Record. In the receiver's Transmitter Settings, Auto Record starts internal recording whenever a transmitter powers on or leaves the case.
Not over Bluetooth to a phone. DJI says internal recording and noise reduction are unavailable when the transmitter connects straight to a smartphone over Bluetooth.
Storage full. Recording stops when storage is full. DJI quotes about 14 hours of 24-bit WAV or about 11 hours of 32-bit float. Check and format storage under Storage in Transmitter Settings, after copying your files.
Can't stop it? REC Stop Lock prevents stopping with the button. Turn it off in Transmitter Settings.
Files look split. That's normal: files split about every 30 minutes.

To get the files off, connect a transmitter to a computer by USB-C. DJI notes the transmitter only supports FAT32 with an allocation unit of 16 KB or less, so don't reformat it on a computer with other settings. See transfer DJI Mic 2 recordings.

Factory reset

On the receiver, swipe down, open Settings, and tap Reset. DJI says this restores default settings and restarts the receiver. Afterward, put everything in the case to relink and set your gain and recording mode again.

Firmware update didn't take

DJI's update method: download the .bin file from DJI's Mic 2 downloads page, connect one unit to a computer (receiver powered off), copy the file to its root folder, then disconnect. The receiver updates on its own, and a transmitter updates after you power it on, blinking red and green. If a transmitter won't update, DJI says to disable Auto Record or stop its internal recording first.

Still not working

If one unit won't power on, charge or link after all of the above, contact DJI or start a repair. If you bought from us, our contact page is the fastest route. For an overview of the system, read our DJI Mic 2 review, or see the DJI Mic 2.