Originally Posted by
wester
I am also getting this message. It started with a controller sc, so I sent the controller into Hytec and they sent it back no problem found. I installed it along with a new HDD. It has original nvram, still has same message with no SD cards, or no HDD. Any further ideas? Thanks
Zed from another thread.
zed255
Re: MP301- SD card restoration is required Encryption recovery steps to use are machine dependent, older vs. newer. See bottom for additional thoughts.
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On 'older' encrypted machines follow below to force clear encryption (or perform recovery if the key is available):
1) Freshly formatted SD card, completely blank. I like to use the SD Association formatted and do a full overwrite.
2) Create a directory named:
restore_key
3) Create a text file in the newly created 'restore_key' directory named:
nvram_key.txt
Note that you do not add the .txt to the file name if you are hiding known file extensions in your file browser, you will end up with a file named nvram_key.txt.txt that WILL NOT work.
4) Edit the newly created nvram_key.txt file to contain the text string:
nvclear
Note here there must be no additional carriage returns - do not hit return / enter, you will create a new line and the file WILL NOT work. If you have the encryption key and are attempting recovery enter the text string of the encryption key instead.
5) Insert the card in the service slot (2) and start up the machine. When the normal screen appears, shut down and remove the card.
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On newer machines the format and naming are different:
1) Freshly formatted SD card, completely blank. I like to use the SD Association formatted and do a full overwrite.
2) Create a directory named:
restore_key
3) Inside the newly created 'restore_key' directory, create another directory named the same as the target machines serial number (example only):
A12BC345678
4) Create a text file inside the newly created 'serial number' folder named in the format key_serialnumber.txt (example only):
key_A12BC345678.txt
Note that you do not add the .txt to the file name if you are hiding known file extensions in your file browser, you will end up with a file named key_serialnumber.txt.txt that WILL NOT work.
5) Edit the newly created key_serialnumber.txt file to contain the text string:
nvclear
Note here there must be no additional carriage returns - do not hit return / enter, you will create a new line and the file WILL NOT work. If you have the encryption key and are attempting recovery enter the text string of the encryption key instead.
6) Insert the card in the service slot (2) and start up the machine. When the normal screen appears, shut down and remove the card.
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Other issues that may prevent recovery:
Using a controller that was in a different machine may be an issue due to a serial number mismatch.
Having a differing hardware configuration may present an issue, i.e. one machine having a hard drive and the other not.
In general avoid swapping boards, you may end up with more headaches than you solve. Also, unless insisted upon by a client don't encrypt machines. Controller issues are much more difficult to resolve when encryption is applied.
Last edited by zed255; 02-26-2019 at 12:07 AM.
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