If selftest 7 and 8 fail you may have a clone.
Open the tinySA case by removing the 4 screws
If the PCB is green, there are no shields on the PCB and the print on the PCB says "tinySA v0.4" you have a clone
Otherwise submit a 3 photos
- The failing self test
- The tinySA back cover sticker
- The component side of the PCB
These photos? will help us to identify a clone.
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For more info on the tinySA go to https://tinysa.org/wiki/