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Firmware corrupt, unable to flash new one


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#1 fatgonzo

fatgonzo

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Posted 16 January 2017 - 08:57 PM

Hi. I have a bit of a problem with a JM4. When I turn the unit on, it says "NO FIRMWARE IN UNIT". followed by "INSERT SD-CARD TO UPGRADE FIRMWARE". However, firmware upgrade doesn't work. I have tried to start flashing the firware with several SD cards with several file systems, but nothing happens when I insert SD card.

 

The unit has no warranty left. I had the same kind of thing happen to a brand new POD HD500X when it came out. I got a replacement for that from warranty though. This looper on the other hand, having no warranty left and no way to flash..any ideas?


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#2 KARMAK

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Posted 28 October 2017 - 11:05 PM

Hi. I have a bit of a problem with a JM4. When I turn the unit on, it says "NO FIRMWARE IN UNIT". followed by "INSERT SD-CARD TO UPGRADE FIRMWARE".

 

I had the same problem yesterday. I just followed the instructions provided here: http://line6.com/sup...structions-r397

and the problem was solved in two minutes. The tricky part is to find a suitable sd card (1-2gb)


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