Firmware & Downloads

Your 4YN handheld updates itself over the air. Open Settings > System > System update, connect to Wi-Fi and install what's waiting. Use the files below only if an update failed, or if the device was flashed with a third-party OS and no longer boots normally.

4YN Thor

System updates (OTA)

Thor receives its updates over the air: Settings > System > System update. Need a full recovery package? Contact us with your serial number and model (Lite, Base, Pro, Max) and we'll send you the right file with flashing steps.

4YN 0din 3 & 0din 3 Portal

System updates (OTA)

Updates arrive over the air: Settings > System > System update. Recovery package on request: contact us with your serial number.

4YN 0din 2 & 0din 2 Portal

System updates (OTA)

Updates arrive over the air: Settings > System > System update. Recovery package on request: contact us with your serial number.

4YN 0din (1st gen)

0din Base / Pro / 256 firmware

Pick M0 or M2 to match your build number (Settings > About).

0din Lite firmware
0din launchers

4YN Loki (Windows)

Windows 11 driver packages

Stuck mid-flash? Don't unplug. Message us with a photo of the screen and we'll walk you through it.