> ## Content Index
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> Use this file to discover other available public pages before exploring further.

# XCD 2,8-4/35-100E Firmware 1.9.15 upgrade released
- URL: https://blog.tonalphoto.com/xcd-2-8-4-35-100e-firmware-1-9-15-upgrade-released/
- Published: 2025-12-18T20:03:13.000Z
- Updated: 2026-07-19T19:21:18.000Z
- Author: Konrad Michels
- Tags: firmware, Lenses & Accessories

If you're one of the lucky folks to own one of these, just 13 days after the previous [firmware](https://blog.tonalphoto.com/hasselblad-x2d-ii-three-firmware-quirks-worth-knowing-about/) update (1.9.13), Hasselblad have released another update.

[This link](https://www.hasselblad.com/my-hasselblad/downloads/?ref=blog.tonalphoto.com#174) should take you to the download page if you want to pull it to your computer and drop it onto a CFe card.

## **What's New**

- Fixed failures to detect the lens in some certain scenarios.

## **Notes**

- First mount the lens to the camera body, then update the firmware by following the instructions in the user manual or user guide of the corresponding camera
- *"Update is completed!"* will be shown on the touch display once the update is successful.

The [Hasselblad Firmware Tracker](https://blog.tonalphoto.com/hasselblad-firmware-tracker/) tracks the current firmware version for this lens (and every other XCD lens) going forward, so you don't have to wait for a dedicated post like this one.

Related: [the longer-term verdict on the 35-100E against the V primes](https://blog.tonalphoto.com/xcd-35-100e-vs-v-primes/).

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