Post by Eric Tribble on Oct 9, 2015 8:53:26 GMT -6
Deleting a line from the VPD list:
If you enter in a line item wrong and it adds a new row to the VPD list there is a way to remove it, example below:
vpd -s “Product_SN”=”00000000000”
The “Product_SN” is wrong because it is missing the / between the S N
If you enter this in wrong it will add a new line to the vpd list.
To delete this wrong line you have to use vpd -d “XXXXX”
The XXXXX will be the first part of the line for example:
If you entered in wrong “Product_SN”=”000000000”
Then to delete you enter: vpd -d “Product_SN”
This will delete this line from the vpd list.
Developer Mode Always ON:
Sometimes, you will come across a Chromebook that is in developer mode and it cannot be put back into normal mode no matter what you do.
To remedy this, start off as you normally would when changing a serial number:
Wait for the Chromebook to finish booting then press Ctrl+Alt+[F2](Refresh).
Type: chronos
Press Enter
Type: sudo su
Press Enter
Type: /usr/share/vboot/bin/set_gbb_flags.sh 0x80
Press Enter
If command fails due to Write Protection, take steps for that device to disable write-protection.
Type reboot
Press Enter
Wont go to the command prompt, once in developer mode:
When you click Ctrl + Alt + → the command prompt shows up for a split second and returns to the home screen?
To Fix this:
Press Ctrl + Alt + ←
Then try Ctrl + Alt + → again. It should fix this issue.
If you enter in a line item wrong and it adds a new row to the VPD list there is a way to remove it, example below:
vpd -s “Product_SN”=”00000000000”
The “Product_SN” is wrong because it is missing the / between the S N
If you enter this in wrong it will add a new line to the vpd list.
To delete this wrong line you have to use vpd -d “XXXXX”
The XXXXX will be the first part of the line for example:
If you entered in wrong “Product_SN”=”000000000”
Then to delete you enter: vpd -d “Product_SN”
This will delete this line from the vpd list.
Developer Mode Always ON:
Sometimes, you will come across a Chromebook that is in developer mode and it cannot be put back into normal mode no matter what you do.
To remedy this, start off as you normally would when changing a serial number:
Wait for the Chromebook to finish booting then press Ctrl+Alt+[F2](Refresh).
Type: chronos
Press Enter
Type: sudo su
Press Enter
Type: /usr/share/vboot/bin/set_gbb_flags.sh 0x80
Press Enter
If command fails due to Write Protection, take steps for that device to disable write-protection.
Type reboot
Press Enter
Wont go to the command prompt, once in developer mode:
When you click Ctrl + Alt + → the command prompt shows up for a split second and returns to the home screen?
To Fix this:
Press Ctrl + Alt + ←
Then try Ctrl + Alt + → again. It should fix this issue.