Comprehensive support for firmware, system optimization, and hardware integration across retro handheld devices.
📺 Display & Screen
Why do I see a protective layer or air bubbles on the screen?
During manufacturing, a protective film is applied to prevent scratches and damage in transit. This layer can be safely removed before use. What may look like “bubbles” is usually the protective film.
What should I do if the screen shows display issues or glitches?
If the display appears abnormal, please first try:
Replacing the TF/SD card
Restarting the device
If the issue continues, gently check the display connection. In some cases, moisture or pressure may affect the internal display cable. Cleaning or reseating the connector may help restore normal function.
If the screen has been physically damaged, a screen replacement may be required.
My screen is not turning on. How can I troubleshoot it?
Please follow these steps:
1.Check whether the power indicator light is on
2.Charge the device for at least 30 minutes
3.Try powering it on again
Depending on the result:
If the indicator lights up → battery is likely working, issue may be display-related
If no light appears → try reconnecting the battery and charging cable
If the device powers on after reconnection → battery connection was the issue
If none of the above works, the issue may be related to the display cable or motherboard. Please contact support for further assistance.
Why does the screen turn off when I move the hinge or change angles?
This may be caused by a loose internal magnetic switch inside the hinge area.
Please check:
- If the magnet has shifted or fallen out of position
- Reposition it back into its original slot if necessary
If the issue persists after adjustment, please contact our technical support team for help.
There is a small gap or light leakage around the screen frame. How can I fix it?
In some cases, slight frame misalignment may occur due to pressure during transport.
You can try:
- Gently pressing along the edge of the frame
- Starting from a normal area and moving toward the affected section
- Applying light and even pressure to reseat the frame
Please avoid excessive force to prevent damage.
If the issue cannot be resolved, contact our support team for replacement assistance.
💻 System & Software
My device is stuck on the boot logo. What should I do?
If your device is stuck on the startup screen, it is usually related to firmware or SD card data.
Please try the following:
- Ensure you are using the correct firmware version for your device model
- Reinstall the official firmware from the support page
- Follow the step-by-step installation guide carefully
In some cases, a forced firmware reinstallation may be required. This involves preparing a fresh firmware SD card and restarting the device in recovery mode.
If the issue persists after reinstallation, please contact our technical support team with photos or videos for further assistance.
Why are games not loading or ROM files not recognized?
If games cannot be launched or are not detected, please check the following:
- Make sure the SD card is properly inserted before powering on
- After startup, refresh the game list in the system menu
- Verify whether the SD card is damaged or corrupted
If only certain games fail to load, the issue may be related to emulator compatibility. You can try switching emulator cores within the system settings and relaunching the game.
How do I return to the main system menu during gameplay?
If you are inside a game and want to return to the home interface:
- Press the system Menu button
- Select “Exit Content”
- Then choose “Quit Emulator”
This will safely return you to the main interface where you can access system settings and other functions.
My device is a Miyoo Flip V2. How can I reinstall the system?
If you need to reinstall the operating system:
- Download the correct firmware package for your device model
- Prepare a compatible SD card
- Follow the official installation instructions step by step
Reflashing the system can resolve boot issues or system errors.
If you are unsure about the process, please contact our support team before proceeding.
🔋 Battery & Power
My device is not charging properly. What should I do?
If your device does not appear to charge, please try the following steps:
- Restart the device and check again
- Use a standard USB-A to USB-C cable (avoid USB-C to USB-C connections)
- Avoid using fast chargers or high-power adapters
- Let the battery drain completely, then charge it for about 30 minutes before turning it on
If the device powers on after charging, the battery is working normally.
If it still does not respond, you can try reconnecting the battery internally and testing again with the charger.
If the indicator lights up but issues remain, it may be related to the battery connection or internal hardware. Please contact support for further assistance.
Why does my device get warm during gameplay?
It is normal for handheld gaming devices to generate some heat during use.
Temperature may vary depending on:
- Game performance requirements
- System load
- Screen brightness and settings
In most cases, the device is designed to operate safely within this temperature range
Why does my battery seem to drain quickly?
Battery performance can be affected by usage conditions such as:
- High-performance games
- Wi-Fi usage
- Screen brightness settings
- Emulator load
The system is optimized to improve efficiency when battery levels drop below 30%, helping extend gameplay time.
If you notice unusually fast battery drain under normal usage conditions, please contact our support team for assistance.
🎮 Hardware & Controls
My buttons or joystick are not responding correctly. What should I do?
If you experience unresponsive or inaccurate controls, please try the following troubleshooting steps:
- Open the system settings from the main menu
- Recalibrate the joystick using the calibration tool
- Reset the button mapping in the key configuration menu
In many cases, recalibration or restoring default key settings can resolve control issues.
What should I do if a button feels stuck or unresponsive?
If a button is physically stuck or not working as expected, please first check the input status in the system’s hardware test menu.
- If the system detects input, the button is likely functioning normally
- If the issue persists physically, it may be caused by internal pressure or alignment of the button pad
In some cases, gently adjusting the internal rubber contact pad may help restore normal function.
If the problem continues, please contact support for further assistance.
📡 Connectivity & Audio
My device cannot connect to Wi-Fi. What should I do?
If you are unable to connect to Wi-Fi, please try the following:
- Ensure a properly working SD card is inserted into the device
- Restart the device and attempt the connection again
If the issue continues, it may be related to system configuration or firmware status. Please contact support for further assistance.
My Bluetooth headphones cannot connect. What should I do?
If your Bluetooth device cannot be paired, please check:
- Whether your device is running the latest official firmware
- Whether Bluetooth is enabled and the device is in pairing mode
Using outdated or unofficial firmware versions may affect wireless connectivity and pairing stability.
Why is there no sound when using a headphone adapter?
If there is no audio output when using a wired headphone adapter, please verify:
- The headphones are working correctly on other devices
- The adapter is fully inserted into the port
You may also try reconnecting the adapter or reversing its orientation before testing again.
My device makes noise while charging. Is this normal?
Unusual noise during charging is often related to power input conditions.
Please make sure:
- You are using a standard USB-A to USB-C cable
- You are not using a high-power charger or fast charging adapter
Using compatible charging accessories is recommended to ensure stable performance and reduce interference.
Still Need Help?
If the solutions above do not resolve your issue, please contact our support team at info@waharu.com
