"Your bosrd has original components - "MLF-8-PAD" has leads from the bottom side. Now I see that there is a second 3.3V regulator (for DSM input) on left side which is also replaced on cloned version with the same 'alternative'."
"I finally found the reason of failure of my cloned Pixhawk. Even cloners claim that they are selling perfect clones of open source hardware, they don't.
This is layout of offcial 2.4.5 version from https://github.com/PX4/Hardware . Notice main 3.3V…"
"Hi, same thing happend to my unit yesterday, with my 'cloned' version from alixpress (2.4.5).
Strange is that this was new unit - I even didn't connect RC receiver or ESCs to it. There were just 433Mhz trasmitter, GPS, speaker, button and usb port…"