OP–1  OS updates
how to update:
1. access te boot.
2. connect OP–1  via usb-c to a computer.
3. press 1. the device will show up as a mass storage disk.
4. put the new firmware file on the disk and safely eject it.
5. wait for the update to finish and follow the
on-screen instructions.
note:
te boot is the bootloader in OP–1 . it loads and runs the firmware and is used for firmware updates and factory reset.
to access te boot:
1. turn OP–1  off.
2. hold com while switching power
on to enter te boot.
OS
https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_4_5.tfw 1.4.5
2023.03.29
click to download
new update features

fix metronome playing over PO sync

fix PO sync resetting when triggering sequencers

fix vocoder muted by panning right in tape screen

fix reverse tape trick not working when in midi sync mode

fix dbox note stealing bug

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_4_2.tfw 1.4.2
2023.01.12
click to download
new update features

new vocoder synth engine

start armed tape recording on external MIDI

mtp: allow aiff and aifc files for patches

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_3_7.tfw 1.3.7
2022.12.19
click to download
new update features

fix patch switch crash

fix shift+T1 crash

fix tape switch crash

fix lost sampler recordings

fix patch drop

fix minor ui bugs

keep track level when pressing drum/synth while tape is running

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_3_2.tfw 1.3.2
2022.11.17
click to download
new update features

keyboard velocity sensitivity

mono / stereo setting for line in

pre tape pan

import wav files via mtp

pre scan for best fm transmit frequencies

adjust tape speed to external clock

sync transmit frequency with OB–4

finger sequencer velocity support

fixed arpeggio bug with "each" setting

fixed lift/drop crashes

misc crash fixes

misc ui fixes

read morehttps://teenage.engineering/_software/op-1/field/op1_field_firmware_1_2_9.tfw 1.2.9
2022.09.09
click to download
new update features

fix random factory reset bug when shutting down with usb device connected

fix noise when dropping multitrack tape to samplers

fix arpeggio crash

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_2_7.tfw 1.2.7
2022.09.02
click to download
new update features

fix bug that could cause key presses not to register

fix crash when switching between certain patches

fix crash when deleting the last drum snapshot

fix patch not saved after drum key lift/drop

multi-track tape drop could insert old audio without clips

support full external midi range in arpeggio sequencer

improved midi sync

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_2_5.tfw 1.2.5
2022.08.31
click to download
new update features

per-tape mixer settings

unlimited lift / drop length

increased endless sequencer steps to 999

velocity support in arpeggio and hold sequencer

allow deleting snapshot patches

lift tape head with blue encoder in tape screen

add lift and drop to M1 / M2

tap T1-T4 quickly to switch tracks without soloing

lifting multiple tracks from tape to sampler keeps mute & pan info

lift / drop clipboard survives power-off

don't normalize when dropping audio into synth / drum sampler

pitch bend did not go back to neutral position

fix MIDI clock glitch when pressing play

audio headphone output would not start with some devices

fix deleting active tape in tape browser

tweak drum midi velocity response

mtp improvements and fixes

other bug & crash fixes

ui improvements

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_1_6.tfw 1.1.6
2022.06.16
click to download
new update features

fix bug where input signal could get distorted

fix crash when renaming patches with mtp

fix crash when pitching down synth samples very low

convert lfo amount on older synth patches to correspond to engine changes

fix occasional hanging midi notes when switching octave

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_1_4.tfw 1.1.4
2022.06.01
click to download
new update features

filter accidental encoder clicks

30% lower keyboard latency

new max brightness color boost (turn to 125%)

low battery warning tweaks

new disk mini seek

fix: reverse loop with start at tape start

crash fixes

gfx tweaks

https://teenage.engineering/_software/op-1/field/op1_field_firmware_1_1_2.tfw 1.1.2
2022.05.12
click to download
new update features

mtp/disk improvements & fixes

improved ble connection stability

low battery warning popup

delayed power switch setting

enable compressor and limiter on fm transmitter

interpolate master compressor settings

add battery info to system settings

synth: show user samples on shift+T1

scroll through preset names too long to fit

transmit OP–1 fm radio station name

autoset system clock from fm radio