OP-1 OS updates
how to update:
1. hold the OP-1 COM key before powering on. this will take you to the "TE-boot" screen.
2. press "1" on OP-1.
3. follow the on-screen instructions.
3. eject the disk.
4. wait for the upgrade to finish, do not turn off the synth.
5. upgrade is completed when the four leds are green. the unit will restart automatically after 5 seconds.
OS
https://teenage.engineering/_software/op-1/op1_242.op1 #242
20.05.11
click to download
new update features
fixed bugs:

in some cases radio gain could affect mic gain in rec screen

vertical graphics tear in screen center removed

octave shift not functional in CTRL mode on previous os release