You can connect multiple devices to a single account, with the device limit depending on your selected subscription plan. Key points to remember about this feature are:

• Accounts can be accessed on various platforms, irrespective of the original sign-up platform (e.g., Android, iOS, macOS, Windows).
• The number of supported devices varies according to the subscription plan, potentially allowing an unlimited number of devices per account.
• Notifications will be issued if the number of connected devices exceeds the plan limit, prompting users to remove extra devices upon logging in.
• Each device can be connected to a maximum of two accounts, whether it is a computer or a mobile device.

Absolutely! You have the opportunity to utilize Hainiu NPV for China at no cost indefinitely via the "Daily Check-in" feature. Every day, you receive 15 minutes of complimentary usage time. Furthermore, you can accumulate 1 point for each successful referral, which can be exchanged for a 1-day pass. Here are the key points:

• Hainiu NPV for China promises to provide the "Daily Check-in" feature for free indefinitely.
• New users are granted an initial 15 minutes of free usage time, and you can earn an additional 15 minutes by completing the check-in process the following day.
• Throughout the free trial, you are encouraged to use our services without restrictions on usage. However, please keep in mind that server access is limited to regions supported by the free plan.
• You can earn points through our referral program and redeem them for various types of plans.

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

1. Get the Hainiu 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 the availability of this free trial can change and may be terminated at any moment without advance notice.

Hainiu NPV for China prioritizes user privacy, guaranteeing that no logs of activity or connections are maintained. Additionally, the NPV service refrains from retaining any information that could potentially be used to monitor specific network actions or behaviors linked to an individual user.

You can reach out to us via the following methods:

• Website: http://koolhainiunpv.com
• Email: [email protected]
• QQ: available soon
• Telegram: available soon

You can reach out to us via the following methods:

• Website: http://koolhainiunpv.com
• Email: [email protected]
• QQ: available soon
• Telegram: available soon

The split mode feature in Hainiu NPV for China allows web applications such as Telegram, WhatsApp, or Gmail that use HTTPS. This mode can modify the routing for both HTTP (port 80) and HTTPS (port 443), enabling access to the web versions of these apps. However, the app versions may operate on various other ports.

To ensure access, the following steps should be taken:

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

• If you try to log in on a new device and go beyond the device limit, you will be redirected to the "Unbind Device" page, allowing you to remove any linked devices.
• Additionally, you can go to "Menu" > "App Settings" > "Device List" to choose and unbind a device as per your preference.

Forgetting usernames or passwords is a common occurrence, and we strive to simplify the recovery process. Here are your options:

• If you can't recall your username, please get in touch with us and include a screenshot of your payment record.
• If you’ve misplaced your password, simply utilize the "forgot password" feature within the app.

We have observed that some users find it challenging to select a server after choosing a region.

To make things easier, we now show only regions. Heibao will automatically connect you to the best-performing server within your selected region. Here are the details:

• The location menu will display only regions, but every region includes hundreds of servers. When you pick a region, Heibao will connect you to the server that delivers the best performance based on your network conditions.
• If you are unhappy with the server you are connected to, you can disconnect and reconnect to the same region to connect to a different server.
• You can continue this process until you find a server that suits your needs.

Typical reasons for network problems include:

• Slow local internet speeds (without the use of a NPV)
• Increased user traffic at specific NPV server locations

To address these issues, you can attempt the following methods:

• Verify your local internet speed by temporarily turning off the NPV
• Experiment with various network connections like WiFi, 4G, or 5G with the NPV disabled to detect any connectivity issues. For instance, if your WiFi is inconsistent, try a mobile data connection.
• Disable the NPV, choose a different server location, and then reconnect
• If you wish to maintain a connection within the same geographic area, disconnect and reconnect as this may link you to a different server in the same region.
• Keep performing these tests until you identify the best server for your needs.

Global Mode: This option enables NPV for all online activities, which might cause slower performance for local websites and applications.

Split Mode: This mode applies NPV only to sites that are restricted due to geographic limitations, such as Google, YouTube, and Netflix, while allowing local network access for Chinese websites.

You can modify the routing mode in the App Settings.

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

Please reach out to us if you require any further assistance.

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

• First, obtain your "Referral Code" or "Referral Link" by navigating to "Share & Gift" and selecting "Share Now." You can then share it with friends or post it on your social media accounts or blog.
• You will earn 1 point for each friend who successfully refers, which can be exchanged for a 1-day pass.
• You can check your redeemed plans in the "My Account" section after you have redeemed your points.
• For a referral to be counted as successful, your referred friend must download and actively use the app. If they only download it without using it, you will not earn your referral point until they start using the app.

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

• We support various payment methods, such as Alipay, WeChat QR Code Scanning Payment, and UnionPay.
• If your payment was successful but you do not see the associated plan in your account right away, please wait about 5 minutes, then log out and log back in.
• If you continue to experience issues after following the steps above, please take 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不当或第三方软件的屏蔽与阻止所导致的。解决此问题的方法是手动添加黑豹加速器（Hainiu 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 系统中搜索并打开“Internet 选项”。
• 进入“连接”标签页。
• 点击右下角的“局域网设置”按钮。
• 在局域网（LAN）设置页中，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，请完全退出浏览器，然后重新启动浏览器以享受科学上网的服务。

如下图所示：

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

By utilizing Hainiu NPV for China on your Windows computer, you can ensure that all your activities remain secure. When you connect to one of our Hainiu NPV for China server locations, your device's IP address will be replaced with a new one, protecting your data on unsafe Wi-Fi networks, and allowing you to access blocked websites and services.

Although free Hainiu NPV for China and proxy services are available, free Hainiu NPV for China is generally not recommended because they often lack the privacy and security measures found in paid Hainiu NPV for China Free Hainiu 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 Hainiu NPV for China, install the app on your device, and press the "On" button that appears on your screen.

Although Windows 10 and 11 include an NPV client, it does not provide a full NPV service. To take advantage of all the features, you will have to link to a third-party NPV such as Hainiu NPV for China. The setup process can be somewhat complicated, so many prefer to simply use the Hainiu NPV for China app instead.

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