OK, the easiest way out of this is to calibrate your esc's. Take off all props, take each esc servo wire off, put it on the rc receiver throttle port, put your throttle to full and boot up the quad, it should beep different after a few seconds then you drop the throttle. It is instructions that come with every esc. if we knew the exact model could probably find you the manual online. this is a generic one
http://www.hobbywing.com/uploadfiles/sx/file/manual/HW-01-V4.pdf
this is on page 3
Throttle range setting: (Throttle range should be reset whenever a new transmitter is being used)
Program the ESC with your transmitter (4 Steps):
S w i t c h o n
t ransmi t ter,
move throttle
st ick to top
Connect battery
pack to ESC,
a n d wa i t f o r
about 2 seconds
“Beep-Beep-” tone emits,
means the throttle range
highest point has been
correctly confirmed
Move throttle stick to the
bottom, several “beep-” tones
presents the quantity of battery
cells
A long “Beep-” tone emits,
means throttle range lowest
point has been correctly
confirmed
Do us a favor and do all this with no props till it acts/starts right. prevents injury, you been warned.
flashing them with simonk firmware is really hard to do. Takes a generic programmer, gotta make a way for the 6 tabs on the esc insides mate to the homemade plug, then you gotta run a bunch of weird software. I'm an avid rc guy, but this open source firmware stuff that doesn't have a software interface and normal plugs is a pain to deal with. i'd send em off and pay for the upgrade...... the one big thing it does is disable throttle cali so if you did reset them, prevents from happening. it is similar to whats in the dji esc's