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Batch Flash & Auth

Plug several devices into several serial ports and flash firmware + write authorization codes in parallel, with the authorization codes driven by an .xlsx sheet. This is the most complex feature in tyutool; when the storage mode is set to OTP, it performs irreversible eFuse operations (T5AI only).

Where to find it

In the desktop app, this feature lives under Toolbox โ†’ Batch Flash & Auth.

Choose your guideโ€‹

This feature involves two very different kinds of people, with two separate guides:

I am a firmware developerThe UART CLI protocol contract and self-test checklist.
I am a flashing operatorPure operation, no technical detail โ€” the do-it-in-order workflow.

What these guides coverโ€‹

Between them, the two guides cover:

  • The pre-flight checklist and the developer โ†” operator configuration handoff
  • Wiring, starting a run, and reading per-slot results
  • Archiving a completed batch and troubleshooting failures
  • The UART CLI protocol a firmware must implement to be batch-authorizable
  • KV vs. OTP storage modes, and the safety rules around irreversible OTP writes
The most important safety note

When the storage mode is OTP (T5AI only), authorization codes are burned into the chip once and can never be erased or changed โ€” one wrong configuration ruins the whole batch. Always validate on a single device before going to scale. See the Operator Guide's Safety rules.