Fujifilm X-T1
firmware v4.21
Fujifilm · First seen Jul 4, 2026
v4.21 is not the latest firmware for the Fujifilm X-T1: the current version is v5.52 (September 17, 2020). Go to v5.52
What's in this update
The firmware update Ver. 4.21 from Ver.4.20 incorporates the following issues: We have found a malfunction in the firmware ver.4.20 launched on December 17 2015.
This firmware is a tentative solution and its function is same as the previous version of 4.10.
If you have upgraded your camera to ver.4.20, please update it again to ver.4.21 to avoid the malfunction.
updatemystuff.com never hosts firmware files — always download from the official source.
Get it from FujifilmWatch the X-T1 for updates
Create a free account and get an email the moment Fujifilm publishes new firmware.
Create account & watch