moseswebb Posted October 31, 2016 Share Posted October 31, 2016 PRELUDE: - The XP computer I was using died. I had to purchase a new computer. I no longer have access to that XP computer. - Unfortunately the new computer is running Windows 10. - In the process of reloading all software (POD Farm) and drivers, during the firmware update something failed (as others has posted). - The HD400 will no longer boot up. FACTORY RESET DOES NOTHING: - Returning the HD400 to factory reset does nothing for this issue. Others have tried. Has nothing to do with the reboot error. - The inability to boot up clearly has to do with the attempt to update the firmware, which failed during the process. CAN NO LONGER CONNECT HD400: - As others have reported, Ling 6 Monkey does not recognize the HD400 as being connected; therefore I cannot reload the firmware, or attempt that procedure. - This is where the issue lies ultimately. Without a way to communicate with the HD400 and reload SW I am dead in the water. THE END: By now Line 6 I hope has some useful feedback to repair this problem and render my boat anchor a useable piece of audio equipment again. From older threads it does not appear that anyone has come up with a fix for this. Any help greatly appreciated. 1 Quote Link to comment Share on other sites More sharing options...
BillBee Posted November 1, 2016 Share Posted November 1, 2016 DL the flash file to your HD so you can choose "Flash from File". Safe mode reflash: Power up while hold "A" down, connect USB fire up L6 Monkey and reflash. Recalibrate the Exp pedal if that works - I think its hold "D" while powering up. Reloading all the software must have worked so you had a USB connection for the HD (or you wouldn't have wanted to reflash). so Hopefully things will work. Quote Link to comment Share on other sites More sharing options...
moseswebb Posted November 1, 2016 Author Share Posted November 1, 2016 BilBee: I do not see where to download the Device Firmware from Line 6 Support. How do I get there? Quote Link to comment Share on other sites More sharing options...
BillBee Posted November 1, 2016 Share Posted November 1, 2016 On a phone here so... go to the top of the page, support, dl, enter device etc. Hope it works.:-) Quote Link to comment Share on other sites More sharing options...
moseswebb Posted November 1, 2016 Author Share Posted November 1, 2016 Thanks... I was able to get the firmware reloaded and all is working. Appreciate the input! Quote Link to comment Share on other sites More sharing options...
BillBee Posted November 2, 2016 Share Posted November 2, 2016 Awesome my man!!! Quote Link to comment Share on other sites More sharing options...
corson6 Posted September 28, 2017 Share Posted September 28, 2017 I have a POD HD400 that froze while trying to update, now I get DSP Boot Failed Error - tried everything listed above but no success, I get an error message on monkey every time after trying for 10-15min PodHD400 screen says Downloading.... until I unplug it - what can I do? How do you know it's in "safe mode" when re-starting while holding down A? It just says "push presets for factory restore" 1 Quote Link to comment Share on other sites More sharing options...
Jeffsar Posted October 13, 2019 Share Posted October 13, 2019 hey there I was trying to update my pod hd400 and it gave me the same error , after reinstalling the usb frimware and trying to install the firmware from file I think it worked just fine Quote Link to comment Share on other sites More sharing options...
joel_brown Posted October 14, 2019 Share Posted October 14, 2019 You replied to a 2 year old thread. Quote Link to comment Share on other sites More sharing options...
manojitm72 Posted December 13, 2020 Share Posted December 13, 2020 Need a support please. my hd500x have kind a same problem. when i trying to power it its stuck with a blank screen. even the foot switch lights are not emitting. can anyone tell me how to fix this. please help!! Quote Link to comment Share on other sites More sharing options...
Mudshark50 Posted January 12, 2021 Share Posted January 12, 2021 I'm having the same issue after trying to update my HD400 - DSP Boot Failure. Trying to reset to factory default does not help and I haven't had a response from Line 6 support for a couple of weeks now (I created a support ticket asking for a solution). Quote Link to comment Share on other sites More sharing options...
Mudshark50 Posted January 21, 2021 Share Posted January 21, 2021 On 10/13/2019 at 12:52 PM, Jeffsar said: hey there I was trying to update my pod hd400 and it gave me the same error , after reinstalling the usb frimware and trying to install the firmware from file I think it worked just fine I cannot connect via usb to the device after the dsp boot failure. Do you recall how you reinstalled the usb firmware? Quote Link to comment Share on other sites More sharing options...
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