You can connect several devices to one account, with the allowable number of devices determined by the selected subscription plan. Here are the main points to consider about this feature:

• Accounts can be accessed on various platforms regardless of the original sign-up platform (e.g., Android, iOS, macOS, Windows).
• The number of devices allowed depends on the subscription plan, which theoretically enables an unlimited number of devices per account.
• Users will receive notifications if the number of connected devices exceeds the plan limit, prompting them to remove extra devices when logging in.
• Each device may be linked to up to two accounts, whether it's a computer or a mobile device.

Definitely! You have the opportunity to use Yingyan NPV for China at no cost indefinitely through the "Daily Check-in" feature. Each day, you are provided with 15 minutes of complimentary usage time. Furthermore, you can earn 1 point for every successful referral, which can be redeemed for a 1-day pass. Here are the key points:

• Yingyan NPV for China is dedicated to providing the "Daily Check-in" feature free of charge indefinitely.
• New users are offered an initial 15 minutes of free usage time, and you can acquire an additional 15 minutes by completing the check-in process the next day.
• During the free trial, you are invited to utilize our services without any limitations on usage. However, please keep in mind that server access is limited to locations included in the free plan.
• You can accumulate points by engaging in our referral program, which you can then redeem for various types of plans.

Absolutely! We offer a daily 15-minute trial. To start your trial, please complete the following steps:

1. Get the Yingyan NPV for China app.
2. Create a new account.
3. Press the "Daily Check-In" button on the app's main screen.

Please note that this free trial's availability may change and could be terminated at any moment without notice.

Yingyan NPV for China prioritizes user privacy, guaranteeing that no logs of activities or connections are maintained. Additionally, the NPV service refrains from storing any information that might be utilized to monitor distinct network activities or behaviors linked to an individual user.

You can reach out to us using the following methods:

• Website: http://koolyingyannpv.com
• Email: [email protected]
• QQ: available shortly
• Telegram: available shortly

You can reach out to us using the following methods:

• Website: http://koolyingyannpv.com
• Email: [email protected]
• QQ: available shortly
• Telegram: available shortly

The split mode functionality in Yingyan NPV for China is compatible with web applications such as Telegram, WhatsApp, and Gmail, which operate using HTTPS. This mode can adjust the routing for both HTTP (port 80) and HTTPS (port 443), enabling access to the web versions of these applications. Nonetheless, the app versions may utilize different ports.

To guarantee access, the following steps should be taken:

• Select the "Global Mode" option found in the routing settings.
• Adjust the proxy settings of the application. For instance, here’s how to update the proxy settings for the LINE app:
  
  

• If you try to log in on a new device and surpass the device limit, you will be redirected to the "Unbind Device" page, where you can disconnect any linked devices.
• Alternatively, you can go to "Menu" > "App Settings" > "Device List" to choose and unbind a device you prefer.

It's not unusual to forget usernames or passwords, and our goal is to simplify the recovery process. Here are your options:

• If you've forgotten your username, please reach out to us and include a screenshot of your payment record.
• If you've misplaced your password, simply utilize the "forgot password" option in the app.

We've observed that some users find it challenging to select a server after picking a region.

To streamline the process, we now only show regions. Heibao will automatically connect you to the optimal server within your selected region. Here are the details:

• The location menu will display only regions, but each region includes hundreds of servers. When you pick a region, Heibao automatically connects you to the server that delivers the best performance based on your network conditions.
• If you're not happy with the server you're connected to, you can disconnect and reconnect to the same region to get linked to a different server.
• You can continue this process until you find a server that suits your needs.

Typical reasons for network problems include:

• Local slow internet speeds (without utilizing an NPV)
• Increased user traffic at particular NPV server sites

To address these problems, you can attempt the following strategies:

• Assess your local internet speed by momentarily turning off the NPV
• Experiment with various network connections like WiFi, 4G, or 5G with the NPV disabled to determine any connectivity issues. For instance, if your WiFi connection is unstable, switch to a mobile data connection.
• Disable the NPV, select a new server location, and then reconnect
• If you prefer to maintain a connection within the same geographical area, disconnect and reconnect, as this may connect you to a different server in the same region.
• Keep performing these tests until you identify the most appropriate server for your needs.

Global Mode: Enabling this option activates NPV for all internet activities, which may cause local websites and applications to slow down.

Split Mode: This setting utilizes NPV solely for websites that are restricted by geographic limitations, such as Google, YouTube, and Netflix, while allowing local access to Chinese sites.

You can modify the routing mode in the App Settings.

If you experience difficulties accessing specific websites or applications, consider switching to "Global Mode."

Please reach out to us if you require further assistance.

You can accumulate points by inviting friends and utilize them to claim rewards. Here’s how it works:

• First, obtain your "Referral Code" or "Referral Link" by navigating to "Share & Gift" and clicking on "Share Now." You can then forward it to friends or share it on your social media accounts or blog.
• You will earn 1 point for each friend who successfully registers through your referral, which can be exchanged for a 1-day pass.
• You can check your redeemed rewards in the "My Account" section after redeeming your points.
• For a referral to be deemed successful, your invited friend must download and start using the app. If they download but do not engage with the app, you will not receive your referral point until they begin using it.

Occasionally, there may be a delay in processing payments through the gateway. Here are the key points to remember:

• We support various payment methods, including Alipay, WeChat QR Code Scanning Payment, and UnionPay.
• If you've successfully completed a payment but don't see the associated plan in your account right away, please wait about 5 minutes, then log out and log back in.
• If you still encounter issues after trying the above solutions, capture a screenshot of your payment confirmation and contact us for further assistance.

此情况通常是由于系统代理地址设置错误或第三方软件的屏蔽和阻止导致的。解决方法是手动添加黑豹加速器（Yingyan NPV for China）的科学上网代理地址。

请按照以下步骤进行操作：

• 在 Windows 系统中查找并打开“Internet 选项”。
• 切换到“连接”标签页。
• 点击底部右侧的“局域网设置”按钮。
• 在局域网（LAN）设置页面中勾选“使用自动配置脚本”选项，并在下方的地址框中输入：http://127.0.0.1:7525/proxy。
• 点击右下角的“确定”按钮，然后再次点击“确定”以关闭 Internet 属性。
• 最后，请完全关闭浏览器，然后重新启动浏览器以享受科学上网。

如下图所示：

When you install the Yingyan NPV for China app on Windows, you might receive alerts from your antivirus or firewall software since NPV applications can be seen as possible threats. If you see these alerts, you should select options like "allow," "agree," or "trust" to proceed with the installation. This step is crucial for the NPV to work properly since it requires changes to proxy settings. Denying these permissions might impede the correct functioning of Yingyan NPV for China.

By utilizing Yingyan NPV for China on your Windows PC, you can ensure that all your activities remain secure. Connecting to one of our Yingyan NPV for China server locations will replace your device's IP address with a new one, protect your data on unsecured Wi-Fi networks, and allow you access to blocked websites and services.

Although free Yingyan NPV for China and proxy services are available, free Yingyan NPV for China is generally not recommended because they often lack the privacy and security measures found in paid Yingyan NPV for China Free Yingyan NPV for China frequently underperform, might endanger your data by selling it, and usually do not provide sufficient protection against potential cyber attacks.

Getting started is easy! Just sign up for Yingyan NPV for China, install the app on your device, and hit the "On" button that appears on your screen.

Although Windows 10 and 11 include an NPV client, it does not provide a complete NPV service. To fully benefit from it, you will need to connect to a third-party NPV such as Yingyan NPV for China. The setup process can be somewhat complicated, which is why many prefer to simply use the Yingyan NPV for China app instead.

An NPV establishes a virtual network by connecting various computers online. Initially aimed at enhancing speed and security, it now primarily functions for privacy, encryption, and accessing restricted content.