Faulty new Frsky receivers S6R

Frsky receivers S6R bought at Aliexpress shop " Xuan Bo store" by Dandan Kong, 3 of them, but I get only one with "original" hologram label and all 3 are faulty. After beter looking at items I received from this store (3 pieces), I saw only 1of 3 have "genuie" hologram label. I thought it is no big deal, but after testing all 3 didn't pass testing. All 3 have glitches, broken link with TX ( TARANIS Q X7) without any pattern, just random and not always, but that broken link last maybe microseconds, just to blink green LED, but enough to activate my kill switch and turn off my gasoline motor. One of them lost channel 4, rudder, it simply stop work. One of them don't allow elevator to have full travel in "down" position ( full travel). All 3 receivers seems like fake, not original receivers even they looking almoust same. How thrust receivers which random reset all setup in plane and have mistakes even they wasn't in the air?? I have more then 20 receivers made by more then one manufactor and never had problems like this. This shop is not recomended.

[Mikeylikesit]

Try moving your transmitter away from the rx, you might be swamping it, also mount your antennas the correct way, or maybe try rebinding it, could be a bad bind

[Mikeylikesit]

You have the rudder wire plugged in backwards

[hibo.]

got the same issue . happend after warranty :(

[markhowe]

I also have the same reciever and also doing the same thing as yours not happy at all and mine is from hobby station

[Mikeylikesit]

Also that lipo you tested is way below storage and is pretty much dead, try a fresh pack