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by Gracana
1486 days ago
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In the past, technicians would get engineering change orders and follow the instructions to rewire boards to fix problems. You could also replace state machine and microprogram ROMs, which I guess sounds a lot like a firmware update. |
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- Perform such an update
- Sign off that they performed the update _correctly_
If you need an air-gapped system, it's still much easier to set it up so it can update from a USB flash drive and log "I did the update correctly" back to the drive.