Updating the Leica T Firmware from 1.1 to 1.55

Having recently acquired a brand new Leica T, I was surprised to see that it was still running v1.1 firmware and would not recognise my 11-23 zoom lens. I thought I would update the camera to the latest firmware version (1.55) to fix many of the bugs reported over the last couple of years, and also to provide compatibility with all lenses, including the newly released 60mm f2.8 macro.

It should have been a fairly straight forward procedure; download the firmware and update instructions from Leica’s website and follow the documentation. Not so…after copying the firmware onto a formatted SD card, the camera would not recognise the firmware. I tried a few different things in an effort to resolve the problem before starting to think there was a fundamental problem with the camera; different SD card, different method of formatting, with lens attached, without lens attached, all to no avail.

Turning to the internet for help, I was quickly running out of suggestions until I noticed one comment amongst many. It alluded to the fact that the firmware was named incorrectly causing the camera not to recognise it. Upon download, the file is called T701_155.TUF. It should read T701_V155.TUF. Imagine my surprise (and relief) when, after renaming the file and inserting the card back into the camera, it booted into update mode and proceeded to upgrade the camera with no further problems. I cannot believe that Leica have not identified and corrected this issue as I was just a step away from returning the camera to them as faulty.

After emailing them to raise their awareness, I thought I would add this article to PhotoArk’s blog in case other users are faced with the same problem. 

The correct procedure for updating from 1.1 to 1.55 firmware versions is as follows;

  • Ensure that the camera is switched off and has a fully charged battery installed.
  • Download the firmware from Leica’s website. Ignore any references to any zip files…it is not compressed and will be downloaded as T701_155.TUF.
  • Rename T701_155.TUF to T701_V155.TUF and copy it to a formatted SD card.
  • Ensure T701_V155.TUF is in the top level (root) folder – do not copy it to a sub folder or it will simply not be recognised. 
  • Switch the camera on whilst holding the video button.
  • Follow the onscreen instructions to proceed with the firmware update.
  • When prompted, restart the camera.
  • Job Done!

During the update process ensure that;

  • The camera is not switched off.
  • The lens is not removed (or added).
  • The SD card is not removed.

As a housekeeping task, you may wish to reformat the SD card to remove the firmware once updated. Obviously ensure that anything else that has been written to the card is backed up before formatting it.