I have tried ever which way and over and over to upgrade my firmware on this lens. But despite having the DAT file on my SD card I keep getting the message that the firmware can't be found.

Edward Greenberg wrote:I have tried ever which way and over and over to upgrade my firmware on this lens. But despite having the DAT file on my SD card I keep getting the message that the firmware can't be found.There are two versions of the XC 50-230mm. Make sure you have the correct firmware for your version of the lens.

Make sure the name of the file wasn't corrupted when you downloaded it - like with a (1) tacked on the end. You can just rename it (and maybe remove previously downloaded versions).

I had an issue with a DAT file for a camera body upgrade. Don't know if this is the issue, but here was my issue if it helps.Using Windows 10 the firmware file is downloaded into the Downloads folder. Fuji's file names for updates all seem to carry the same file name for a given body or lens. If there is a previous version in the Downloads folder it will place a number in brackets at the end of the file name, thus XXX (1), or if there are more versions xxx (2), etc.When loaded into the camera to complete the update, the camera will not recognise the file name with a bracketed number in its title so is unable to do the update. The answer is to delete any old versions of the same file in the Downloads folder and ensure that the file name of the current update does not have a bracketed number in its title.I spent a few frustrating hours fathoming this one out! Hope this tip helps for a lens.

I have repeatedly downloaded the file onto my card and when it didn't work reformatted the card. I have also saved to my desktop and copied the file onto my disk. Still no luck

Is this the lens you have?XC50-230mmF4.5-6.7 OIS IIor, is this the lens you have?XC 50-230mm F4.5-6.7 OISIf it is the first one, the front of the lens might have a small "II" after the letters OIS.  At least, this is how it looks to me.  I don't own one of these lenses.  Otherwise, check the box it came in, and the instructions it came with, if you have kept these.If it is the first one, there is a firmware update.  If it is the second one, there is no firmware update.

Tom Schum wrote:Is this the lens you have?XC50-230mmF4.5-6.7 OIS IIor, is this the lens you have?XC 50-230mm F4.5-6.7 OISIf it is the first one, the front of the lens might have a small "II" after the letters OIS. At least, this is how it looks to me. I don't own one of these lenses. Otherwise, check the box it came in, and the instructions it came with, if you have kept these.If it is the first one, there is a firmware update. If it is the second one, there is no firmware update.I'm betting Tom has it nailed (also SShapiro).As for Erik and Jules... this certainly has happened many times, as well. It shouldn't happen that firmware uses the same download code name continuously because: 1) people are nervous about updates - for good reason; 2) people don't often clear out their download folder (triggering renaming and update failures); and 3) the update process is vital, and the hardware can be crippled if executed poorly.For all the hardware design and production excellence Fuji provides, it is a shame that the software / firmware side isn't nearly so capable. Perhaps you could say the silver lining (not really) is that Fuji no longer supports older hardware through updates to the same extent we were seeing just a few years ago... So we aren't faced with the download problem nearly so often.

If the lens is the original version (only "OIS" on the front) there is no fw update for it. Only the "OIS II" version can accept the fw update. If you have the OIS II:- go to your downloads folder and delete all previous update files. Your computer will assign an extension to each file name which can't be read by the camera. After deleting all previous downloads, download the file one more time. The file name should only be XFUP0023.DAT- format the card in-camera, then insert into your computer's reader, then drag the file name to the sd card. Eject the card properly. - insert card into camera with camera off. Press DISP/BACK button and turn the camera on while keeping that button pressed. The fw versions of both camera and lens should be displayed on the lcd. Follow instructions to update fw.- once the update is successful, reformat the sd card in-camera to get rid of the fw file. I also made it a habit to delete the file on the computer, in case I had to do it again in the future. Hopefully this will work for you

Lettermanian wrote:If the lens is the original version (only "OIS" on the front) there is no fw update for it. Only the "OIS II" version can accept the fw update. If you have the OIS II:- go to your downloads folder and delete all previous update files. Your computer will assign an extension to each file name which can't be read by the camera. After deleting all previous downloads, download the file one more time. The file name should only be XFUP0023.DAT- format the card in-camera, then insert into your computer's reader, then drag the file name to the sd card. Eject the card properly. - insert card into camera with camera off. Press DISP/BACK button and turn the camera on while keeping that button pressed. The fw versions of both camera and lens should be displayed on the lcd. Follow instructions to update fw.- once the update is successful, reformat the sd card in-camera to get rid of the fw file. I also made it a habit to delete the file on the computer, in case I had to do it again in the future. Hopefully this will work for youAll of that is reasonable, except that on occasion you get a bad update (either something wrong in the creation of it or discover some aspect in a bad install). It would be great if you could keep a copy of the download "just in case," but Fuji's unwillingness to provide unique naming creates the quandary.A few days ago, there was a thread regarding faulty AF for the Viltrox EF-FX focal reducer due to a really bad firmware update. Viltrox made things worse by deleting all the good firmware versions! Not that Fuji is that incompetent, but these things can happen at times. (Some DPR members kept the old downloads - and I found the lost download pages through the Wayback Machine archives - and posted a link.) At least Viltrox had the sense to comply with the normal update naming conventions.

JNR wrote:Lettermanian wrote:If the lens is the original version (only "OIS" on the front) there is no fw update for it. Only the "OIS II" version can accept the fw update. If you have the OIS II:- go to your downloads folder and delete all previous update files. Your computer will assign an extension to each file name which can't be read by the camera. After deleting all previous downloads, download the file one more time. The file name should only be XFUP0023.DAT- format the card in-camera, then insert into your computer's reader, then drag the file name to the sd card. Eject the card properly. - insert card into camera with camera off. Press DISP/BACK button and turn the camera on while keeping that button pressed. The fw versions of both camera and lens should be displayed on the lcd. Follow instructions to update fw.- once the update is successful, reformat the sd card in-camera to get rid of the fw file. I also made it a habit to delete the file on the computer, in case I had to do it again in the future. Hopefully this will work for youAll of that is reasonable, except that on occasion you get a bad update (either something wrong in the creation of it or discover some aspect in a bad install). It would be great if you could keep a copy of the download "just in case," but Fuji's unwillingness to provide unique naming creates the quandary.A few days ago, there was a thread regarding faulty AF for the Viltrox EF-FX focal reducer due to a really bad firmware update. Viltrox made things worse by deleting all the good firmware versions! Not that Fuji is that incompetent, but these things can happen at times. (Some DPR members kept the old downloads - and I found the lost download pages through the Wayback Machine archives - and posted a link.) At least Viltrox had the sense to comply with the normal update naming conventions.Actually this has got little to do with naming conventions [if any such exist] but with a more fundamental choice Fuji made: you can never go back to an older FW version. I'm not really interested in debating that choice here.What happens when you start the update procedure, is that the camera checks whether the relevant XFUP file [with the correct name] is on the card, then checks in that file whether its version number is higher than the current one and only then will proceed to install.If Fuji put up a faulty FW version [and it has happened], they will rerelease the previous FW with a version number higher than the faulty one. That means there is no good reason to keep an old version on disk 'just in case'. It also means that many do not rush to install a new FW version, especially not for minor fixes. If the file you downloaded fails to install properly, you would not want to try use that download again.So all in all, it is good housekeeping to delete these update files after use.

Edward Greenberg wrote:I have tried ever which way and over and over to upgrade my firmware on this lens. But despite having the DAT file on my SD card I keep getting the message that the firmware can't be found.I've seen this error occur when the .dat file is contained in a zip file or other parent folder.Having said that, that should not happen because when you download it fromhttps://fujifilm-x.com/en-gb/support/download/firmware/lenses/xc50-230mmf45-67-ois-ii/you just get the .dat file. I tried it just now on my 50-230mm OIS II and confirmed it updated to version 1.11.may i suggest if you havent already fixed the issue to check the md5 hash of the file you download against my version posted here as a screenshot. This essentially runs a check on the file and calculates its hash. if it is different to the below then something went wrong with the download.