Post-update compatibility reading is about separating environment, app state, and device screen. A dated product-update row can explain why connection or recognition differences became visible, but it should not turn every difference into a product conclusion. The useful path is source, condition, screen, and record.

Connection conditions should be listed before retrying
Before repeating a connection attempt, list the conditions that may change the result: cable, port, Bluetooth state, app version, platform permission, battery level, and device screen. This turns compatibility reading into a sequence of checks instead of a broad statement.
When a device stops appearing after an update, the post-firmware connection guide gives a focused path for checking environment and app state without mixing too many variables.
Recognition differences need app and screen context
Recognition can mean the app sees the device, the device accepts the task, or the workflow reaches completion. Those are different checkpoints. Write down which checkpoint changed and whether Ledger Wallet or the device screen is showing the difference.
- Compare the same device and app version first.
- Change cable, port, or Bluetooth state one at a time.
- Keep recognition state and completion state as separate notes.
Firmware and app layers should not be blended
Some update notes mention both app prompts and device-side updates. If the wording blends those layers, pause and identify which layer is actually changing. The app versus firmware update guide is the reference for separating app version, firmware version, and device-screen action.
A compatibility record keeps the note usable later
Finish with a compact compatibility record: date, device model, app version, connection route, screen wording, and the final state. This keeps the article useful after the update window, because it preserves a repeatable reading method rather than making unsupported claims about later environments.