adb install -g XRoboToolkit-PICO-1.0.1.apk
Performing Streamed Install
adb: failed to install XRoboToolkit-PICO-1.0.1.apk: Failure [INSTALL_FAILED_OLDER_SDK: Failed parse during installPackageLI: /data/app/vmdl431995469.tmp/base.apk (at Binary XML file line #8): Requires newer sdk version #30 (current version is #29)]
Android SDK version 29 is already the latest system for Pico 4. Does this mean I can only use Pico 4 Ultra?