Need help to identify this chipset / protocol ...

www.rcgroups.com/forums/showthread.php?2...yone-knows-this-chip

I posted for help on RC groups , but things are quiet ..
Does anyone know what protocol / chipset this Tx is running ?

Thank you in advance ..

it's most likely one of these new mcu/rf in one chips, identifying it will be tricky, and deviating the protocol even more so :/

FyreSG did a mini-review on that Quad (HCW553) a few years back and indicated that it used the WLToys E728 tranmitter, which, he stated, is compatible with the V929, V939 and V949. He also stated that the E728 transmitter would fly this quad. So if you have an A7105 module in your Devo, try the Flysky protocol (there are variants in the newest release, so click the protocol name and try them all). It may work... but I strongly suggest you test this with props removed!

A late post on the thread states that there is a newer version of the quad receiver board labeled with JJ36 rather than HCW553. That newer quad would not bind with the Flysky transmitter.

Good luck and happy flying!

Thank you guys ..
My 9x wont bind to it ..
My Turnigy i10 wont bind to it
And my 9XR pro with a NRF24L01 multi protocol module wont bind with it ..

My WL V959 binds with my 9x and i10 ...

It sounds like you may have a later one, then.

Take a look at the FAQ in the left menu about how the protocols are deviated.

HappyHarry wrote: it's most likely one of these new mcu/rf in one chips, identifying it will be tricky, and deviating the protocol even more so :/

unlike others i actually went and looked at the chip pictures, the above still stands

Thanks everyone ..
Its a shame it wont bind to the 9x ...
Because it really is a nice flying little quad without the body weighing it down ..
And it would be so much better on a half decent Tx

Thank you ..