[HETPE3B]

Just one thing.
Orange 5 on some mku needs a resistance of 10k.
I'm not sure you're far away..
Search with multimetro connections from these points
Or use Upa (original-clone)

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And attachment that you are using wrong pin out of orange5
Reset.... 5v... gnd.... bkgd... upa
Rst .... vcc.... gnd....RxD..... Orange5

Thanks! What pin you are thinking I'm using wrong on Orange 5? I was using GND, RXD, RST, VCC.

I figures out that I needed to use OSC pin on Orange 5 for Extal Pin on CPU.
Eventually I sticked with GND, RxD, OSC and external power supply for the cluster. Works just fine.