Nano Sens BLE (old) programming

[mu234]

Fiddling with the Nano and its errors got me to the Uno, did some progress, however, I am still having problems with uploading the sketch, like blink here is more information where I am stuck, if anybody can help:

Arduino IDE (1.8.13, 1.8.15 or 1.8.19) do not want to jtag or serial 2 UPDI -> ATTINY 3216, however, uploading the bootloader works in either case?

Hello all, After hours of soldering I got my breakout board ready for the SOIC pckg AT Tiny 3216... I am trying to run the new series 1, the chip since very promising, especially with a good amount of flash and easy programming (UPDI). Indeed, megaTineCore is there to use, however, no matter what I do, I can only flash the boot loader, while I cannot flash a simple "blink". I have tried three different IDEs 18.15 18.19 and 2.0. Actually, the problem appears to be the same nonetheless the v 18…