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HarryWilson
SCSI Port
Posts: 90
Registered: ‎03-02-2018
Location: US
Views: 514
Message 1 of 3

Bypass factory test with powerwash?

A colleague of mine wants to bypass the factory tests from the RMA Shim by powerwashing the device after the serial has been updated.  What does the Google Required Tests do that reloading the OS via powerwash does not?  I have seen in testing that doing this leaves developer mode forced on, but that can be resolved via command line.  Are there any other risks in doing this?

Coolmannorm
Paper Tape
Posts: 3
Registered: ‎11-14-2018
Location: US
Views: 425
Message 2 of 3

Re: Bypass factory test with powerwash?

Go into the command line wile device is in developer mode.

  • Type chronos
    • Press Enter
  • Type sudo su
    • Press Enter
  • Type /usr/share/vboot/bin/set_gbb_flags.sh 0
    • Press Enter
  • You will have to manually reboot device.
    • Press Refresh + Power
    • The Device should reboot and then it will say that you need to reinstall OS
    • Reinstall the OS
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HarryWilson
SCSI Port
Posts: 90
Registered: ‎03-02-2018
Location: US
Views: 416
Message 3 of 3

Re: Bypass factory test with powerwash?

Yes, that's the command I had in mind.  That's useful info for someone else that has Dev mode forced on.  Do you happen to know if there are other processes performed by the RMA Shim that would not be performed by bypassing finalization (and other tests) with a powerwash and then running this command?

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