Testing display UCN5550 - Dev Board

I tried the simple code (provided in the doc) to test a display (800-480)
If I run it it from VS 2019 16.4, I got the following message from VS

If I run from VS 2017 15.9.17), I got the following

Loading Deployment Assemblies.
Attaching deployed file.
Assembly: mscorlib ( Attaching deployed file.
Assembly: GHIElectronics.TinyCLR.Drawing (
Error: the reference GHIElectronics.TinyCLR.Drawing cannot be used with this version of the firmware.
Firmware checksum 0xF2B1785E does not match the assembly checksum 0xC8AB3CAB.
The debugging target runtime is loading the application assemblies and starting execution.
Cannot find any entrypoint!

The code

UC5550 Bootloaded 2.0.5
Core Version

Any idea’s ?

Update the firmware on your board please

It’s done


Removing the GHIElectronics.TinyCLR.Drawing reference solves the issue
I reinstall everything and it works back. apparently, I didn’t had the latest version

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