Edgeflyer Posted April 19, 2024 Share Posted April 19, 2024 I have a problem with my Mz24. I downloaded the latest GR firmware update software and it downloads the latest file but can't apply it through usb to the tx. Windows 10 seems to have the come port open but the bootloader does not open so the firmware does not complete. Any ideas? I'd like to update to 5he Mz24 Pro firmware but not sure if it's possible? Quote Link to comment Share on other sites More sharing options...
Neil James Posted April 19, 2024 Share Posted April 19, 2024 I haven’t tried updating my MZ-24 Pro yet but for my MZ-16 using the update studio is definitely the way to go, maybe you will have more success through their own software. I’ve got a vague recollection that to upgrade to the Pro software requires sending your Tx back to a service centre. Not sure about that though. You might have found this already but there’s some resources here: https://www.controlhobbies.com/graupner-mz-18-mz-24-product-support.html Quote Link to comment Share on other sites More sharing options...
Edgeflyer Posted April 19, 2024 Author Share Posted April 19, 2024 Thanks yes that's where I downloaded the update studio. I've tried it on windows 10 and 11 pcs with the same result... It gets as far as applying the file to the tx then stops. Obviously the USB comms are OK as it identifies the tx type. The screen image of the failure is here Quote Link to comment Share on other sites More sharing options...
Jim S88 Posted May 28, 2024 Share Posted May 28, 2024 I was having the same issue. My MZ-24 was stuck on 1.032 firmware just refused to go further with same error in above thread. Tried countless times. I emailed Graupner Germany to enquire about the pro upgrade but I have not heard back yet BUT.......... I took the back off to fix a broken bit and found a CR2032 lithium battery, my tx is about 10 years old so guessing it was about time to change it. Swapped it out for a new one and put it all back together. Ran the upgrade using grStudio version 4.9.3.2 and it took a lot longer to download the firmware file, around 60-90 seconds. Then rebooted and bingo, version 1.056 all good to go. Can't guarantee this will work for all but worth a try. There are 6 Philips head screws on back (2 under foam side holds which replace back easily) plus you need to remove the two hex bolts on top, either side of antenna. Take care removing/replacing back and side potentiometers are bit fragile and have to ease through slot in back. Good luck 🙂 Quote Link to comment Share on other sites More sharing options...
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