The Analogue Pocket requires the key to be in a specific binary format rather than a zip. :

For MiSTer users, the process is straightforward as the system is designed to read the zip file directly.

The file is a critical digital key required to unlock and play "beta" versions of arcade cores developed by Jotego (Jose Tejada) for FPGA gaming platforms like MiSTer FPGA and the Analogue Pocket . Without this specific file, beta cores typically remain "locked," often allowing you to view the game's attract mode but preventing any gameplay input. How to Download jtbeta.zip

: Copy the jtbeta.zip file to the /media/fat/games/mame folder on your SD card.

: If using the popular update_all.sh script, ensure that "Install Premium Cores" (sometimes listed as "JTCORES") is enabled in the script's settings. 2. Analogue Pocket

Place the jtbeta.zip file in the of your Pocket's SD card.

: Do not unzip the file on MiSTer; the core expects the compressed archive.

Copy beta.bin to the Assets/[core_name]/common folder for every beta core you wish to use. :

Unzip jtbeta.zip on your computer to find the beta.bin file inside.