| Step | Action | Why it matters |
|------|--------|----------------|
| Read the current manual | Locate the “Firmware Update” section (usually pages 12‑14). | Guarantees you follow the exact procedure for your revision. |
| Check the current firmware version | On the control panel press Menu → System → Firmware. | You’ll know whether an update is needed. |
| Power off & unplug | Turn the unit off, disconnect the mains plug, and wait 30 seconds. | Prevents electrical spikes during the update. |
| Gather needed items | • USB flash drive (FAT32, ≤8 GB) or a computer with Wi‑Fi.
• The latest firmware file (download from the official Tokyo Hot support site).
• A clean, dry cloth. | Having everything ready avoids interruptions. |
| Back‑up any custom settings | If you have saved profiles (e.g., “Morning” or “Evening” programs), write them down or screenshot them. | Updates may reset the user profile memory. |
| Action | Buttons | Note | |--------|---------|------| | Enter Update Mode (USB) | Hold Menu 5 s → “UPDATE” appears | Insert USB before holding if you prefer. | | Start Wi‑Fi Update | Open App → Firmware Update → Download & Install | Keep device within 5 m of phone. | | Reset Wi‑Fi (if stuck) | Hold Menu 10 s → “Wi‑Fi Reset” | Re‑configure network after reset. | | Factory Reset | Hold Menu + Timer 7 s → “Factory Reset” | Clears all profiles; use only if troubleshooting. |
Note: This method works only on revisions that ship with the built‑in Wi‑Fi module (generally 2022+ units). tokyohot+n0692hd+upd
Launch the Tokyo Hot App
Check for Updates
Start the Update
Do Not Interfere
Finish
Confirm
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