Fuji released a new firmware update that fixes a major bug when using the EF-X500 flash. Here are the download links:
- Fujifilm X-T1 Firmware ver. 5.10
- Fujifilm X-T2 Firmware ver. 1.20
- Fujifilm X-Pro2 Firmware ver. 2.10
- EF-X500 FirmwareUpdate Ver.1.02
via Fujirumors