Cannot successfully record 120fps to micro SD card?

[Synonomau5]

When I try to record 120fps (available option in GO 4) it records a mess of dodgy bricks and lines and jittery video. You can make out what the video 'is', but it's just unusable. I have tried both the card that came with it (16GB Sandisk) and an approved 128GB Samsung card (per the DJI list of approved cards), both produce the same result.

I've also tried a faster 1,000x 128gb Lexar card that other have reported as 'works fine' but it would not even format.

I've also tried recording in both MP4 and MOV formats, with no luck. It records fine at slower frame rates, but 120fps just doesn't work.

Anyone have this experience?

 

[Shayd]

Do you know what Class (Speed) Is your Micro SD? ex. Class 10 U1 Also are you recording in H.265? Some players may have trouble playing such High frame rate video and to be honest it's for editing into Slow-Mo videos not playback

 

[Synonomau5]

I was set to H264, never H265.

The card that didn't work was a Lexar, the newer card is the precise approved-by-DJI Samsung.