AltBoot problem - Unable to decrypt DLM

[pdy-pt]

I replaced the hard drive on a Xerox AltaLink C8055 with a new one. However, when I AltBoot, I always get the error "Unable to decrypt DLM. Perform Special Altboot to upgrade the device" (see photo).
Does anyone of you know the error and can help me?
I have already tried several things:
- Different USB sticks
- FAT and FAT32
- Different DLM firmware versions (unzipped)
- Different (new) hard disks

IMG_6598.JPGAltBoot.jpg

[xcopytech]

Re: AltBoot problem - Unable to decrypt DLM

You need special altboot software and 2 special altboot files

[adriansto]

Re: AltBoot problem - Unable to decrypt DLM

I replaced the hard drive on a Xerox AltaLink C8055 with a new one. However, when I AltBoot, I always get the error "Unable to decrypt DLM. Perform Special Altboot to upgrade the device" (see photo).
Does anyone of you know the error and can help me?
I have already tried several things:
- Different USB sticks
- FAT and FAT32
- Different DLM firmware versions (unzipped)
- Different (new) hard disks

[ATTACH=CONFIG]58136[/ATTACH][ATTACH=CONFIG]58137[/ATTACH]

Files for Altboot are 400 Mb size. 200Mb file size is for upgrade only.

[pdy-pt]

Re: AltBoot problem - Unable to decrypt DLM

So did this procedure change from WC 78xx to AL C80xx?
Where can these files be found?

[adriansto]

Re: AltBoot problem - Unable to decrypt DLM

So did this procedure change from WC 78xx to AL C80xx?
Where can these files be found?

What version ?

[pdy-pt]

Re: AltBoot problem - Unable to decrypt DLM

Best would be the newest firmware version. Did this procedure change? In the service manual it seems to be the same.

[adriansto]

Re: AltBoot problem - Unable to decrypt DLM

So did this procedure change from WC 78xx to AL C80xx?
Where can these files be found?

I have this file:
SPECIAL ALTBOOT_Instructions for remediating the 316-720 error and the necessary files.

[xcopytech]

Re: AltBoot problem - Unable to decrypt DLM

If you replace hdd then you need full software dlm file, about 500mb.
Procedure is the same.
If you replace hdd and sd card ar same time you need two more special files at USB so mochine can decompress dlm file

[pdy-pt]

Re: AltBoot problem - Unable to decrypt DLM

If you replace hdd then you need full software dlm file, about 500mb.
Procedure is the same.
If you replace hdd and sd card ar same time you need two more special files at USB so mochine can decompress dlm file

Is this the file needed?

Screenshot 2023-05-07 124452.jpg

[xcopytech]

Re: AltBoot problem - Unable to decrypt DLM

No

For special usb altboot you need
Swup_usb
Swup_usb.C8045_55
And dlm file with size about 500mb

[adriansto]

Re: AltBoot problem - Unable to decrypt DLM

No

For special usb altboot you need
Swup_usb
Swup_usb.C8045_55
And dlm file with size about 500mb

Something like this:

[big mike]

Re: AltBoot problem - Unable to decrypt DLM

Something like this:

When attaching the pws to the copier, are there two cords needed, a special one with a 4 pin connector?

[xcopytech]

Re: AltBoot problem - Unable to decrypt DLM

You can do a special altboot from usb do not need pws

[adriansto]

Re: AltBoot problem - Unable to decrypt DLM

When attaching the pws to the copier, are there two cords needed, a special one with a 4 pin connector?

As I know have 5 pins , usb serial ,and one of them is marked as GND.
The other is crossover cable. But there are anothers 2 files for pws altboot.

[kopycinskiadrian]

Re: AltBoot problem - Unable to decrypt DLM

Hello,
I have the same problem in Altalink B8055. The device prompts for special altboot procedure after hard disk replacement but I haven't any access to necessery files. Could you share special altboot procedure/files with me?
My e-mail address: kopycinskiadrian@gmail.com