The Latest Firmware for your Spectrum Studio

What firmware should I use?

ST4_STUDIO_26_01 is what is currently shipping with new units and what most users should be using. It supports Maestro, our latest network controller in eMotimo Broadcast 

To update the firmware

1. Round up the MicroSD card that came with your Studio.  It is a small 8 or 16GB card formatted FAT32. Every unit ships with this card to avoid compatibility issue when updating firmware.
2. Download the .srec firmware file you want from this page.
3. copy .srec file under (or into) the update folder of your uSD card so it looks like SDCARD:/update/ST4_RC000_xx._xx_STUDIO.srec.  If the card is blank you need to create the update folder.  
   HEY YOU!  Location matters.  Do not put the srec file into the "update/firmwares" folder . . .don't put in in the root . . . only put it in the update folder!
4. Insert the uSD card to the studio- make sure it goes in straight and is fully seated.
5. Power on and wait 60 seconds, the screen will be blank while updating - check that the new firmware flashes on the screen on startup.
6. Remove and store the card for safekeeping

Change Log

ST4_STUDIO_26_01 - 10/22/2026 - updated API and large overhaul of menus and functions to enable control by Maestro and eMotimo Broadcast 

ST4_RC008_26_B5_STUDIO - 09/14/2026  Resolved jumping issue with Tilta Nucleus M Motors when preset recalled from Companion & Skaarhoj.

ST4_RC008_26_B4_STUDIO - 04/30/2026  Updated to resolve bug where you can get stuck in Easy Mode with no access to settings.

ST4_RC008_26_B3_STUDIO - Initial Release 04/09/2026