My needs are simple

[Rab19155]

I'm using *TUSB=1, to power the Black 13 from a power bank, without using a battery, but I can't get it to work. The camera turns on OK but after about a minute, I get two sets of triple beeps then after about 30 seconds, another set of beeps the same. In other words, the camera will record only for about 30 seconds and stop. If I turn it back on, it keeps doing the same thing. Anyone know what's happening?

[dnewman-gpsw]

Try different power sources and cables, something not good about the power. TUSB only disables power current rating tests, can't fix bad power.

[Rab19155]

Thanks, I'll try that but I'm using the original GoPro USB cable and an Anker 15,600 mAh power bank, which can output 5V at 4.8A. This set up works perfectly with my old Hero 2018, with no Labs installed.

[dnewman-gpsw]

Also check that you don't have duration recording enabled, as something is wrong on your camera or power.

[Rab19155]

I'll check that too. GoPro actually replaced my first Black 13, as it it wouldn't run from a power bank. Of course, the replacement was just the same.

[dnewman-gpsw]

That is definitely the cable or the power back. Even the GoPro cable could be the one at fault. Do not replace the camera again. The last one was fine too.

[Rab19155]

I changed both the power bank and the cable and it worked. Still not sure if it was the cable or the power bank.

[dnewman-gpsw]

The key, not the camera. Now you can experiment.