Important
If screen mirroring does not work, simply reboot both your mobile device and computer, and these issues will likely be fixed.
Compatibility of DouWan?

DouWan supports PC (Windows 7 or later) and Mac. If you want to control your iPhone/iPad with your mouse and keyboard, your PC should be Windows 10 (1803 or later) and Bluetooth peripheral mode should be available. Most laptops comply with those requirements while desktop PCs depend on configuration. If you are not sure, just download DouWan and run it (select iOS Wired Mirroring) — a prompt will display immediately if it's not compatible.

What mobile devices does DouWan support?

iPhone, iPad, Android phone, and tablet.

Is a mobile app required?

Android needs the DouWan Mobile App while iOS doesn't.

Does DouWan support controlling iPhone or iPad from PC?

Yes. This feature is disabled by default in 64-bit new versions and needs to be enabled in "Settings > iOS Devices > General > Control Device".

No Bluetooth module or Bluetooth module is not available?
1.Buy the Bluetooth 5.0 Adapter using Realtek RTL8761B chipset on Amazon.
2.Check if the computer has built-in Bluetooth — it needs to be disabled. (If the computer itself supports Bluetooth, the external adapter will not work; you need to disable the native Bluetooth.)
3.Install the driver. Before installing, plug in the external Bluetooth adapter you purchased.
Wired screen mirroring not working?
1.Try to reboot your computer and phone.
2.Try reseat the USB cable.
3.Try using another USB cable.
4.Try using another USB port on the PC.
5.For iPhone/iPad devices, don't turn off the mirroring from the control center.
6.Keep your laptop powered on at all times.
7.For desktop computers, use the USB port on the back of the case.
How to solve slow charging / "Not Charging" problem?

For iPhone and iPad, you can enable Fast Charge in the Settings.

You can buy a USB Hub with an external power supply (must have an external power supply with adapter power of 5V/2A and above). Connect the computer USB port to the USB Hub and the USB Hub to the mobile phone.

Should I enable Fast Charge?
1.It is recommended to enable the function on the iPad.
2.Fast charge will increase heat — please disable Fast Charge if your iPhone/iPad is overheating.
3.If you are using the Type-C port of your computer to connect to your iPhone/iPad, please turn off Fast Charge.
Wireless screen mirroring not working?

Please disable your firewall first. If still no effect, try connecting PC to iOS hotspot then screen mirror. If it succeeds, please check your network environment.

If the desktop computer is wired, it likely is not on the same LAN as the mobile phone. You can check the IP addresses of the computer and the mobile phone. In general, if the first three blocks of the IP addresses are the same, they belong to the same LAN. For example, computer IP: 192.168.1.2 and mobile phone IP: 192.168.0.50 are not on the same LAN because the third block is different.

Did not receive verification email?

First check the spelling of the address and try requesting another verification email. If that doesn't work, check out the suggestions below:

1.Typo — Make sure the email address is spelled correctly.
2.Browser Refresh — Occasionally you'll need to manually refresh your browser to check for new emails.
3.Spam / Junk Folder — Verification emails may be filtered into spam. Try adding "@vip.163.com" to your safe sender list, then request another email.
4.Blocked Address — Your ISP or corporate domain may have blocked the email. Try verifying an alternative email address.
5.Role / Alias Address — It's best to use a personal email address. Some role addresses can be verified, but many can't.
How to switch input method in iOS?

Ctrl + Space or Option(Alt) + Space

Open a Mac app from an unidentified developer?
1.In the Finder on your Mac, locate the app you want to open.
2.Control-click the app icon, then choose Open from the shortcut menu.
3.Click Open.
Bluetooth connection failed?

If Bluetooth works abnormally, try the following:

1.Forget Bluetooth pairing both on PC and iOS.
2.Reboot DouWan. When the Bluetooth guide page shows up and after 2 identical Bluetooth device names appear on phone, initiate Bluetooth connection from iOS. If a Bluetooth request shows up before you do any operation, don't click Confirm.
3.If you fail to discover 2 identical Bluetooth names, exit settings on phone then reopen.
4.If still failing, reboot PC.

Alternative Method

1.Download LightBlue from the App Store.
2.Open DouWan and cast your phone to the computer.
3.When the Bluetooth guide page of DouWan shows up, connect Bluetooth with LightBlue.