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Prophet XL won't boot after update

Prophet XL won't boot after update
« on: March 19, 2021, 08:35:05 PM »
I recently purchased the Prophet XL from a private seller.
Originally, it had Version 1.0 and I wanted to update it to Version 2.2.
I formatted a 128gb PNY USB drive on the prophet, transfer the bin file, and updated the Prophet.
Once it updated, I got the message to restart the prophet. I turned it off then on and.... It just started flashing.
I contacted DSI support and they gave me a sysex file and to do a midi update.
I got it uploaded and the loading appears but once it fills to 100%, I get an error message.

Cannot reach audio processor. M:, DSP:, FPGA: 0.0

Has anyone gone through this before or is it just my prophet?
Any solutions?


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Re: Prophet XL won't boot after update
« Reply #1 on: March 21, 2021, 05:36:36 PM »
You need to contact Sequential support. You’re most likely going to need to put it into boot loader mode and update via MIDI DIN via SysEx.

Re: Prophet XL won't boot after update
« Reply #2 on: March 24, 2021, 08:30:35 PM »
Support sent me the SysEx files version 1.1 and 2.2.
I installed them in order. The display showed the loading bar and it would freeze at 100%. Still bricked.
After installing 2.2, was instructed to connect a keyboard to the USB port in the back and press F11 at 75%-99%. Still bricked
I got curious and installed the latest update and FINALLY it booted as if nothing happened.