You can link multiple devices to a single account, with the limit depending on the subscription plan selected. Important points about this feature include:

• Accounts can be accessed on various platforms regardless of the platform used for the initial sign-up (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 disconnect excess devices upon logging in.
• Each device can be associated with a maximum of two accounts, whether it's a computer or a mobile device.

Certainly! You can take advantage of Biubiu NPV for China at no cost indefinitely through the "Daily Check-in" feature. Each day, you receive 15 minutes of complimentary usage time. Furthermore, for each successful referral, you can earn 1 point, which can be traded for a 1-day pass. Here are the key details:

• Biubiu NPV for China is dedicated to providing the "Daily Check-in" feature free of charge indefinitely.
• New users are granted an initial 15 minutes of free usage, and by completing the check-in process the next day, you can earn an additional 15 minutes.
• While on the free trial, you can use our services without any limitations. However, be aware that server access is restricted to areas included in the free plan.
• You can accumulate points by engaging in our referral program, which can then be redeemed for various plans.

Of course! We offer a 15-minute daily trial period. To start your trial, please follow these steps:

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

Please note that the availability of this free trial may change and could be terminated at any time without prior notice.

Biubiu NPV for China prioritizes user privacy by guaranteeing that no logs of activities or connections are maintained. Additionally, the NPV service refrains from storing any information that could potentially be used to trace particular network activities or behaviors back to an individual user.

You can reach out to us via the following methods:

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

You can reach out to us via the following methods:

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

The split mode functionality in Biubiu NPV for China accommodates web applications such as Telegram, WhatsApp, or Gmail that employ HTTPS. This mode can adjust the routing for both HTTP (port 80) and HTTPS (port 443), allowing access to the web versions of these applications. Nevertheless, the application versions might utilize various other ports.

To guarantee access, the following actions should be taken:

• Enable the "Global Mode" option found in the routing settings.
• Adjust the proxy configurations of the application. For instance, here's how you can update the proxy settings for the LINE app:
  
  

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

Forgetting usernames or passwords is a common occurrence, and we strive 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 receipt.
• If you've misplaced your password, simply utilize the "forgot password" option 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 display only regions. Heibao will automatically connect you to the best performing server in your selected region. Here are the details:

• The location menu will show 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 optimal performance based on your network conditions.
• If you’re unhappy with the server you’re connected to, you can disconnect and reconnect to the same region to connect to a different server.
• You can repeat this process until you find a server that fits your requirements.

Typical reasons for network problems include:

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

To address these problems, you can try the following solutions:

• Monitor 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 pinpoint any connection issues. For instance, if your WiFi connection is unstable, switch to a mobile data connection.
• Deactivate the NPV, choose a different server location, and then reconnect
• If you prefer to remain connected to the same geographic area, disconnect and reconnect, as this may link you to a different server within the same region.
• Keep performing these tests until you identify the best server for your needs.

Global Mode: This option enables NPV for every online activity, which could make local websites and applications slower.

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

You can adjust 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 any additional assistance.

You can accumulate points by referring friends and use them to claim rewards. Here's how it works:

• First, obtain your "Referral Code" or "Referral Link" by visiting "Share & Gift" and clicking on "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 every friend who successfully refers, which can be redeemed for a 1-day pass.
• You can check your redeemed plans in the "My Account" section after you have used your points.
• For a referral to count, your invited friend must download and start using the app. If they download the app but don’t use it, you won’t receive your referral point until they begin to use it.

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

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

此情况通常是由系统代理地址设置不当或第三方软件的屏蔽和阻止引起的。解决办法是手动添加黑豹加速器（Biubiu 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”。
• 前往“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”，并在下方的地址框中输入：http://127.0.0.1:7525/proxy。
• 点击右侧底部的“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，然后重新打开浏览器即可使用科学上网。

如下图所示：

When you install the Biubiu NPV for China app on Windows, you might see warnings from your antivirus or firewall programs since NPV applications can be viewed as possible threats. If you encounter these warnings, 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 requires changes to proxy settings. Denying these permissions could affect the proper functioning of Biubiu NPV for China.

By utilizing Biubiu NPV for China on your Windows PC, you can ensure that everything you do remains secure. When you connect to one of our Biubiu NPV for China servers, you'll replace your device's IP address with a new one, protect your data on unsafe Wi-Fi networks, and access restricted websites and services.

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

Although Windows 10 and 11 include an NPV client, it doesn't offer a comprehensive NPV service. To fully leverage the features, you'll need to connect to a third-party NPV such as Biubiu NPV for China. The setup process can be somewhat complicated, which is why many prefer to simply use the Biubiu NPV for China app instead.

An NPV establishes a virtual network by connecting several computers online. Initially, its emphasis was on speed and security, but it now primarily caters to privacy, encryption, and accessing restricted content.