Program your OSCR

Checking browser

USB connection · No install needed

Let’s update your reader

Three steps. One fresh start.

Official release from oscrusergroup/firmware-jaguar-standalone.

Plug your Mega 2560 into a USB data port.

Choose your Arduino’s serial port in the popup.

We’ll write the firmware, then check every byte.

I’ve closed other apps using the serial port.

Checking jag.txt…

Place jag.txt at the root of your SD card.

Select a USB device to continue.

Chip checked before writing. Verified before success.

First time here?

A USB data cable and a desktop browser are all you need.