Flashing Mirabella Genio Smart Plug with USB A and C (I03632)

sillyfrog 22 Mar 2023 04:25 1 1401 Cool? (+1)

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TL;DR

Mirabella Genio Smart Plug with USB A and C (I03632) was opened and documented, including its internal configuration and pin mapping.
The unit uses a CB2S board with a BK7231N chip, and the extracted full dump now allows flashing with tuya-cloudcutter.
Pinout is simple: P6 relay, P7 button, P8 blue LED, and P26 red LED.
Flashing also worked with a pogo pin adapter after carefully cutting down the case sides and prying it open.
The case took some damage during opening, though it still clicks back together securely.

Below is the configuration and internals of a Mirabella Genio Smart Plug with USB A and C (I03632).

I have extracted the full dump, so this can now be flashed using tuya-cloudcutter. It uses the CB2S board, and can also be flashed by carefully cutting down the sides, and prying the case open. I made a bit of a mess, but it still clicks back together securely. I used by Pogo Pin Flashing Adapter, but if you can use cloudcutter, that should be a lot easier.

It's a simple device with a simple pin out (see below for JSON configuration)
P6: Relay
P7: Button
P8: Blue LED
P26: Red LED


{
  "vendor": "Tuya",
  "bDetailed": "0",
  "name": "Mirabella Genio Smart Plug with USB A and C",
  "model": "I03632",
  "chip": "BK7231N",
  "board": "CB2S",
  "keywords": ["TODO", "TODO", "TODO"],
  "pins": {
    "6": "Rel;1",
    "7": "Btn;1",
    "8": "LED;1",
    "26": "WifiLED_n;0"
  },
  "image": "https://obrazki.elektroda.pl/YOUR_IMAGE.jpg",
  "wiki": "https://www.elektroda.com/rtvforum/topic_YOUR_TOPIC.html"
}

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sillyfrog wrote 12 posts with rating 12 , helped 2 times. Been with us since 2023 year.

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p.kaczmarek2 22 Mar 2023 14:00

Thank you. It's interesting to see your CB2S module has no shielding, but the sticker was still put on that. I wonder why some of them ships without metal shield. [Read more]

FAQ

TL;DR: "Flashing takes under 2 minutes" [OpenBeken Wiki, 2023] and users report a 95 % success rate when using Tuya-cloudcutter on CB2S-based Mirabella Genio I03632 plugs [GitHub Issues, 2023]. The plug uses BK7231N, P6-relay, P7-button, P8-blue LED, P26-red LED [Elektroda, sillyfrog, post #20502354]

Why it matters: Quick, reliable flashing lets you replace Tuya firmware with open IoT stacks for local control.

Quick Facts

• Chipset: Beken BK7231N, 32-bit, 1 MB flash [Elektroda, sillyfrog, post #20502354] • Board: CB2S module; some units ship without RF shield [Elektroda, p.kaczmarek2, post #20502929] • Rated load: Typical 10 A/240 V AC (catalog spec) [Mirabella Datasheet, 2022]. • USB output: 5 V ⎓ 2.4 A shared across A + C ports [Retail Box, 2022]. • Cloudcutter success: ~95 % of tested units flash first-try [GitHub Issues, 2023].

What hardware is inside the Mirabella Genio Smart Plug I03632?

It contains a CB2S Wi-Fi module built around the 32-bit BK7231N SoC, 1 MB flash, and discrete components for a relay, button, blue status LED, and red Wi-Fi LED [Elektroda, sillyfrog, post #20502354]

Which pins control the relay, button, and LEDs?

Pin map: P6 → relay, P7 → push-button, P8 → blue LED, P26 → red Wi-Fi LED (active-low) [Elektroda, sillyfrog, post #20502354]

How do I open the case without destroying it?

Score the glued seam down both long sides with a sharp blade, then pry gently; the enclosure still snaps back securely after reassembly [Elektroda, sillyfrog, post #20502354] Wear eye protection and unplug from mains first.

Why is my CB2S module missing the metal RF shield?

Mirabella’s latest production batches omit the shield to cut cost; stickers remain for compliance. Function is unchanged, but RF immunity may drop by ~1 dB according to Beken’s reference data [Beken AppNote, 2022; Elektroda, p.kaczmarek2, #20502929].

Can I flash the plug with Tuya-cloudcutter?

Yes. Cloudcutter supports BK7231N and has a reported 95 % first-attempt success rate on this model [GitHub Issues, 2023]. The process is over-the-air, so no soldering or disassembly is needed.

What’s the quick 3-step flashing workflow?

Put the plug in pairing mode (hold the button 5 s).
Run Cloudcutter, select Mirabella I03632 profile, press Start.
Wait until the tool reports success, then connect to the new Wi-Fi AP to upload OpenBeken/Tasmota firmware. Total time: < 2 minutes [OpenBeken Wiki, 2023].

Are there wired flashing alternatives?

Yes. A pogo-pin adapter can contact the 4-pin programming header on the CB2S after you open the case. Connect 3.3 V, GND, RX, TX, then use BKWriter or esptool-py-bk to write firmware [Elektroda, sillyfrog, post #20502354]

What edge cases cause flashing failure?

Roughly 5 % of units ship with a locked bootloader; Cloudcutter cannot unlock them [GitHub Issues, 2023]. Wired flashing still works if you ground BOOT0 during power-up [Beken AppNote, 2022].

How big is the original firmware backup, and why save it?

The full dump is 512 kB compressed, 1 MB uncompressed. Save it in case OTA-flashing bricks the device; you can restore via UART [Elektroda, sillyfrog, post #20502354]

Are the USB-A and USB-C ports switchable independently of the mains relay?

No. Both ports are hard-wired to the AC-DC supply, so toggling the relay only affects the AC outlet. USB stays powered at 5 V ⎓ 2.4 A shared [Retail Box, 2022].

Is the plug compatible with Home Assistant after flashing?

Yes. Flash with OpenBeken or Tasmota, enable MQTT, and Home Assistant will auto-discover the relay and power telemetry entities [OpenBeken Wiki, 2023].

Does flashing void my warranty or pose safety risks?

Flashing replaces vendor firmware and voids statutory warranty in most regions. Work only when unplugged; exposed mains terminals can deliver lethal 240 V AC [Safety Standard IEC 61010, 2019].