[fox]

I tried putting them both to 1000, and to 1070, no luck

[fox]

What the heck... this makes no sense. Setting  the throttle to near 1704 will make the quad work half of the time. Three esc beeps then one short beep, or it just keeps on beeping. Literally half of the time, what...

[TheOtherCliff]

Don't use PWM-50

It really sounds like your ESCs need calibration and neutral setting.
https://librepilot.atlassian.net/wiki/display/LPDOC/ESC+Calibration

[fox]

Don't use PWM-50

It really sounds like your ESCs need calibration and neutral setting.
https://librepilot.atlassian.net/wiki/display/LPDOC/ESC+Calibration

I've done the calibration multiple times, as it has been suggested before. By the neutral setting you mean the one in the motors tab? I have it at 1000 min 1070 neutral and 1900 high.

The quad will work 100% perfect with the usb plugged in.

I plug in the usb, turn on my Tx, plug in the battery, and it arms / throttles just fine.

I unplug the usb, turn on my Tx, plug in the battery, and it just beeps. (But that only happens half the time, the other half it works fine.)

[ernstock]

Could it be getting a good earth ( / negative) from the USB cable ?
And a poor / intermittent earth without the USB cable ?

[TheOtherCliff]

1000, 1070, 1900 sounds perfect.

ESCs are cooler when the USB is plugged in.  Inexpensive ESCs need different timings when warm vs. cool.  I have had this issue before.

You probably just need a different min to get the ESCs to arm.  Try setting your mins all to say 970 and if that doesn't work try 1030.

[fox]

1000, 1070, 1900 sounds perfect.

ESCs are cooler when the USB is plugged in.  Inexpensive ESCs need different timings when warm vs. cool.  I have had this issue before.

You probably just need a different min to get the ESCs to arm.  Try setting your mins all to say 970 and if that doesn't work try 1030.

Hm. I tried both 970 and 1030, nothing changed. I also tried 900 and 1000