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SG135 C2000 BUG

RobertoR over 5 years ago

Hello, I recently bought a used SG135 rev.1 which has AVR54 bug (I found out about this bug after I buy it).

For others vendors I found a possible fix, but not for Sophos.

There are two (as far as I know) fixes:

1. Replace a atom c2xxx with C0 revision

2. external pull-up resistor (18.2k to 10k), from LPC_CLKOUT0 or LPC_CLKOUT1, tied to 3.3V

Did someone tried to fix this bug? (I use home license, so I don't have any agreement with Sophos).

Best regards,

Robert

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+2 DanielSchmitt over 4 years ago

Hello,

i found this 150 Ohm Resistor in a refurbished SG125.

;)

With that Fix i brought my broken SG125 back to Life

Cheers

Daniel
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0 Paul Sawatzki over 4 years ago in reply to DanielSchmitt

Confirm! Work on a bricked SG135 Rev.2! Used a 250 Ohm, now it is back to life!

Thanks for sharing guys! Great job!
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0 Paul Sawatzki over 4 years ago in reply to Paul Sawatzki

Hi,

looks like my resurrected SG135 has lost its DMI data in BIOS. Allthough it's back to life again I am not able to reinstall SFOS. It's telling me No Sophos appliance detected.

The command dmidecode show empty system information.

Can some share the output of the dmidecode on a working SG135?

Maybe I find a tool to fill out the system strings again in BIOS DMI info.

Cheers,

Paul
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0 Marcelo Clare over 4 years ago in reply to Paul Sawatzki

Hey Paul,

Easiest solution is to install the Software version of XG on it.

I have had the same error on my SG135 v2 and ended up installing the SW Firmware with a home licence and it is been working fine.

Give it a try and let us know.

Cheers,

Marcelo Clare
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0 RobertoR over 4 years ago in reply to Paul Sawatzki

Did you try to take out battery for a couple of minutes?

Do you have a file asg in folder /etc ?? Sorry didn't see that you try to install XG. For SG this file is needed on hardware appliance with non home license.
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0 RobertoR over 4 years ago in reply to Paul Sawatzki

Did you try to take out battery for a couple of minutes?

Do you have a file asg in folder /etc ?? Sorry didn't see that you try to install XG. For SG this file is needed on hardware appliance with non home license.
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0 Paul Sawatzki over 4 years ago in reply to RobertoR

Hi Robert,

removing the battery doesn't help in that case.

Regarding asg filke in /etc: I've also read about it and that why this was also my first thought. But if you have an empty disk there is no file available to check.

Instead from what I've seen during installation there is some hw-detect script checking DMI data. It looks like it compares it to a predefined list and if a specific amount of matching data is found it accepts it as an appliance. Again this is not sure, but after checking the logfiles of the installer and digging in the filesystem of the ISO this is what I expect.

Thank and regards,

Paul
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