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Choose the symptom that matches the problem. When turning the device off and on, wait about five seconds before switching it back on.

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Device will not turn on or display anything

  1. Confirm that the side switch is on.
  2. Connect a charging cable and leave it for a while before trying again.
  3. Try a different USB cable and power source.
  4. Remove microSD temporarily and try turning it on again.
  5. Check that the port contains no water, dust, or foreign material.
If the device is unusually hot, smells burnt, has a swollen battery, or has contacted water, stop charging and using it immediately.

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Controls do not respond or menu scrolls itself

  • Tap and release controls; do not accidentally hold them.
  • Check that the five-way control is not caught on the case edge.
  • With the device off, gently press each direction to check that it springs back.
  • Restart the device and try again from the main menu.
If it still scrolls by itself or a direction cannot be pressed, record the symptom and contact the seller.

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Feature will not stop or screen is frozen

Follow the feature-stop procedure. If it recurs in the same menu, stop using that menu temporarily and prepare details for support.

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Forgotten password

If an attempt is incorrect, wait until the screen is ready and enter the four-press pattern again slowly. If you cannot remember it, stop trying and contact the seller. Recovery can affect settings or Storage data. See SETTINGS — Security to set, change, or remove a password.

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Storage or microSD problems

Follow If microSD does not appear. Do not select Format Storage while important files remain: it deletes all files in the active storage.

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Update page cannot find the device

Follow If the website cannot find the device.

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Device will not start after an update

  1. Wait until the website confirms installation is complete.
  2. Unplug the cable, switch the device off, wait five seconds, then turn it on.
  3. Reconnect USB and try turning it on again.
  4. If it still does not start, do not choose a different board or firmware. Contact the seller and state the firmware option used.

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What to provide when contacting support

  • Product-receipt date
  • Order number or purchase channel
  • Observed symptom and current menu name
  • A clear photo or video of the device and display
  • Firmware version from SETTINGS → Device → Info, if menus still open
  • What you have already tried
See Care, warranty, and contact for contact options.
🧩 Diagram to add: A decision tree covering “will not power on → controls → storage → firmware update.”