RE: help needed identifying/programming a unknown esc.
They appear to be Mystery Esc's. I prefer to do each esc by itself for throttle endpoints. Basic proceedure is same for almost all esc's.
Remove props, unplug one esc, turnon radio, throttle to full, plug in battery, wheen it beeps (usually twice) pull throttle to idle, it should beep again, then pause, then either beep the number of cells or music to show its armed. Repeat on othere esc. Thats how I do it, flytreetimes