How to Factory Reset a Ledger|Entry, Device Screen, and Record Boundaries
Direct answer: treat a Ledger factory reset as a device-state action. Before doing anything, confirm the app entry, read the device screen, and review whether the recovery phrase backup and PIN boundary are already understood. A reset should not be mixed with app download questions or ordinary troubleshooting notes.

Start from a stable entry
Open the app from a known entry and confirm the task before changing device state. If the app path is unclear, use Official App Download and Installation Guide first, then return to the reset review.
Read the device screen before reset
The device screen is the main reference for the current state. If the screen state is unclear, pause and document it before taking action. The setup baseline in What Is Ledger Initialization helps separate first setup, reset, and later review.
Check backup before changing state
A reset changes the device state, so recovery phrase backup should be reviewed first. Do not write phrase words into the reset note. For the backup boundary, read What Is a Recovery Phrase.
Record only non-private details
The local note should include date, app entry, device model, visible screen state, and next step. It should not include the PIN or recovery phrase. That keeps the reset review useful without storing private setup material.
If reset is completed, close the workflow with a new completion record and keep it separate from the backup material. If reset is not completed, record the current state and why the review paused.
The useful FAQ answer is not a shortcut. It is a sequence: entry, screen, backup state, reset action, and non-private record.