You may connect multiple devices to one account, with the device limit determined by the selected subscription plan. Important points to remember about this feature are:

• Accounts can be accessed on various platforms, regardless 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 surpasses the plan limit, prompting users to eliminate extra devices upon logging in.
• Each device may be linked to a maximum of two accounts, whether it is a computer or a mobile device.

Certainly! You can take advantage of Niuniu NPV for China at no cost indefinitely via the "Daily Check-in" feature. Each day, you receive 15 minutes of complimentary usage time. Moreover, you can earn 1 point for every successful referral, which can be swapped for a 1-day pass. Here are the key points:

• Niuniu 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 next day.
• During the complimentary trial, you are free to use our services without any limitations on usage. However, please be aware that server access is limited to locations included in the free plan.
• You can accumulate points by engaging in our referral program, and then redeem them for various types of plans.

Of course! We offer a daily trial period of 15 minutes. To start your trial, kindly follow these steps:

1. Download the Niuniu NPV for China application.
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 may change and can be ended at any moment without prior notice.

Niuniu NPV for China prioritizes user privacy by guaranteeing that no logs of activities or connections are maintained. Additionally, the NPV service refrains from retaining any data that might be utilized to trace particular network activities or behaviors back to an individual user.

You can reach out to us via the following methods:

• Website: http://koolniuniunpv.com
• Email: [email protected]
• QQ: coming soon
• Telegram: coming soon

You can reach out to us via the following methods:

• Website: http://koolniuniunpv.com
• Email: [email protected]
• QQ: coming soon
• Telegram: coming soon

The split mode feature in Niuniu NPV for China accommodates web applications such as Telegram, WhatsApp, or Gmail that use HTTPS. This mode can modify routing for both HTTP (port 80) and HTTPS (port 443), allowing access to the web versions of these applications. However, the application versions may operate on 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:
  
  

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

Forgetting usernames or passwords is something many encounter, and we strive to simplify the recovery process. Here are your options:

• If you can't recall your username, please reach out to us and include a screenshot of your payment record.
• If your password is no longer in your memory, simply utilize the "forgot password" feature found in the app.

We have observed that some users find it difficult to select a server after picking a region.

To make this easier, we now only show regions. Heibao will automatically connect you to the top-performing 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 choose a region, Heibao will automatically connect you to the server that provides the best performance based on your network conditions.
• If you're unhappy with the server you are connected to, you can disconnect and reconnect to the same region to be directed to a different server.
• You can continue this process until you find a server that suits your requirements.

Typical reasons for network problems include:

• Slow local internet speeds (without utilizing a NPV)
• Increased user traffic at specific NPV server sites

To address these issues, you might consider the following approaches:

• Verify your local internet speed by temporarily turning off the NPV
• Try various network connections like WiFi, 4G, or 5G with the NPV disabled to pinpoint any connectivity issues. For instance, if your WiFi connection is unstable, switch to a mobile data connection.
• Disable the NPV, select a different server location, and then reconnect
• If you prefer to stay linked to the same geographical area, disconnect and reconnect, as this may connect you to a different server within the same vicinity.
• Keep conducting these tests until you determine the best server for your needs.

Global Mode: This option enables NPV for all online activities, which might slow down local websites and applications.

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

You can modify the routing mode in the App Settings.

If you encounter difficulties accessing specific websites or apps, consider switching to "Global Mode."

Please reach out to us if you require further assistance.

You can accumulate points by referring friends and utilize them to claim rewards. Here's how the process works:

• First, obtain your "Referral Code" or "Referral Link" by navigating to "Share & Gift" and selecting "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 every friend who successfully refers, which you can trade for a 1-day pass.
• You can check your redeemed plans in the "My Account" section after you have exchanged your points.
• For a referral to be deemed successful, your referred friend must download and start using the app. If they download but do not engage with the app, you will not get your referral point until they begin using it.

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

• We support a variety of payment methods, such as Alipay, WeChat QR Code Scanning Payment, and UnionPay.
• If you have successfully completed a payment but do not see the corresponding plan in your account right away, please wait for about 5 minutes, then log out and log back in.
• If you continue to experience problems after following the above steps, please take a screenshot of your payment confirmation and contact us for further assistance.

这种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引起的。解决办法是手动添加黑豹加速器（Niuniu NPV for China）的科学上网代理地址。

请按照以下步骤执行：

• 在 Windows 系统中搜索并打开“Internet 选项”。
• 转到“连接”标签页。
• 点击右下角的“局域网设置”按钮。
• 在局域网（LAN）设置界面的“使用自动配置脚本”选项中勾选√，并在下面的地址框中输入：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 属性窗口。
• 最后，请完全关闭浏览器，然后重新启动浏览器，即可享受科学上网服务。

如下图所示：

When you install the Niuniu NPV for China app on Windows, you might see warnings from your antivirus or firewall software since NPV applications can be recognized as possible threats. If these warnings show up, you should select options like "allow," "agree," or "trust" to proceed with the installation. This step is crucial for the NPV to work properly as it needs to alter proxy settings. Failing to grant these permissions may impede the proper functioning of Niuniu NPV for China.

By utilizing Niuniu NPV for China on your Windows computer, you can ensure that all your activities remain secure and protected. When you connect to one of our Niuniu NPV for China server locations, you'll replace your device's IP address with a new one, protect your data on vulnerable Wi-Fi networks, and access restricted websites and services.

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

Although Windows 10 and 11 come with an NPV client, it doesn't offer a complete NPV service. To enjoy the full advantages, you will need to connect to a third-party NPV such as Niuniu NPV for China. The setup process can be somewhat complicated, leading many to prefer using the Niuniu NPV for China app instead.

An NPV establishes a virtual network by connecting several computers online. Initially aimed at enhancing speed and security, it has since evolved to primarily focus on privacy, encryption, and accessing restricted content.