Problem with Firmware 2.8

Morten · Jan 18th 2015

Hey !

I just installed the 2.8 Firmware and the Kemper had huge problems with the update:

- When starting the Kemper it takes around 10 minutes until the Kemper starts.

- After starting and loading my rigs the kemper hangs up

- I inserted USB stick while the Kemper was on and it was not recognized

- After that I took an empty USB with 2.7 Firmware on it and restarted the Kemper while holding the < and > buttons.

- The Kemper started to boot from the USB stick but than an error warning appears, saying: "ERROR: Firmware update doesn´t support this hardware". I tried this with different USB sticks and different Firmware updates (2.7 - 2.6)

- I also tried to reset the system settings, but it didn´t change anything - I also erased the internal flash memory, so my Kemper has got no rigs or anything on it. After that I tried to boot from my USB Sticks (one with 2.7 and one with 2.6) but nothing changes and I always get the error warning.

Please help me

Raoul23 · Jan 18th 2015

Now this is strange. Try putting the FW file just in the root directory of the USB stick not the OS update folder and boot while holding down the < and > buttons hopefully this should sort it

Morten · Jan 18th 2015

Hey Raoul,

I already did that with both sticks and both firmwares, but it didn´t help.

I also tried to install 1.8 but the Kemper always sends that "ERROR" Message

Raoul23 · Jan 18th 2015

Have you tried re downloading the firmware, reformatting the USB stick on the kemper.

Morten · Jan 18th 2015

Yep, I tried it, but the Kemper doesn´t find any external storanges when I have turned it on.

Most of the time the Kemper just hangs up when I turned it on, so it´s not possible to reformat anything :-/

Raoul23 · Jan 18th 2015

That's a bummer, I'd contact support then. I'm sure they will sort this for you, let us know what they suggest and if it sorts the issue

Morten · Jan 18th 2015

I already sent everything to the support. I´ll let you know how they fixed the problem ! But thanks for your help !

Raoul23 · Jan 18th 2015

No worries sorry I couldn't sort it for ya

db9091 · Jan 18th 2015

Did you try other USB sticks to see if they are recognized?

If you only have one right now, is it loose when you put it in? I had one that way and sort of used my teeth to bite the metal casing a little more closed so it fit more snug.

I've heard nothing like this, very unique, so I'm also interested in Support's response to you.

Morten · Jan 18th 2015

Yip, I´ve tried 2 USB sticks. None of them worked

nightlight · Jan 19th 2015

Quote from db9091

... sort of used my teeth to bite the metal ...

You're an animal, DB!

Chilipepper · Jan 19th 2015

I had the same problems here.
Tried everything but no use.

Finally I had to send my profiler over to Kemper to fix the problem.
Will wait for the official 2.8 now

nightlight · Jan 19th 2015

Quote from Chilipepper

I had the same problems here.
Tried everything but no use.

Finally I had to send my profiler over to Kemper to fix the problem.
Will wait for the official 2.8 now

This USB problem is really commonplace, it seems. I think 2.8 is definitely not a stable firmware for this reason and I'd advise users to wait for a stable release, at least this once.

Hannes_ITS · Jan 19th 2015

Quote from nightlight

This USB problem is really commonplace, it seems. I think 2.8 is definitely not a stable firmware for this reason and I'd advise users to wait for a stable release, at least this once.

Yeah I´m hoping for NAMM for a proper release!

Ingolf · Jan 19th 2015

There's no 2.8 public beta at the moment.

Chilipepper · Jan 19th 2015

I guess Kemper decided to remove it because of the problems that occured, which is for the best of course.
I have to do without my profiler for the next couple of weeks

Kemper Support #1 · Jan 19th 2015

There never was a 2.8 public Beta in the downloadsection of the website.
It can only be downloaded through the link in the PDF that is nested in a sticky post in the private section of this forum.

DamianGreda · Jan 19th 2015

You can try to go to the system menu with USB connected and hold system button for 4 seconds to debug mode.
Navigate to the page with the list - there will be USB Stick Connected at first position - set is to marked.
Then do to the page where is displayed "MAINTENANCE PAGE"
hit right most soft button "USB Update"
there will be a list with avaliable kaos.bin updates - select one and hit update soft button.

or try" Burn FW Image".
Also please try to format usb stick on windows in FAT32 format.

I have 2.8 FW and tried revert it to 2.7 and back without a problem.

smfelton · Jan 19th 2015

I had the same problem with the USB using the Thomann USB and fw 2.8, I too had a bit of a panic, but managed to find an 8gb Kingston USB that worked so copied 2.7.4 fw to it and my latest backup and got everything working again.
Definitely wait this one out I think.

djemass · Jan 20th 2015

I will wait for a more stable release

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