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To use a third-party client on macOS, install Sing-box VT from the Mac App Store (third-party software, not published by 5UF). 5UF serves a Trojan (Xray) compatible profile as a sing-box subscription that includes server lists and routing rules.

1. Install the app

You need a non-Mainland-China Apple ID. Install from the App Store: Sing-box VT

2. Copy your sing-box URL

Sign in to the 5UF user panel in a browser and open the Xray (Trojan) configuration page (typically /xray_config). Copy the full sing-box configuration subscription URL with the one-click copy button.

That URL embeds your private UUID—do not share it. If it may have leaked, use Change UUID on the same page so the old URLs stop working immediately, then copy the new sing-box link and import again.

3. Import into Sing-box VT

In the app, add or update a profile by importing from URL / subscription (wording depends on the app version), paste the copied link, save, and let the app refresh nodes and rule sets.

4. Connect and test

Enable the profile and visit any site that shows your public IP to confirm traffic exits through the VPN. If import or connection fails, check that the URL was copied completely, your account is active, and the network is not blocking the endpoints; generating a new UUID and re-importing often resolves stale links.

Screenshots (UI may change between releases):

For the official all-in-one experience, use the 5UF VPN Mac app from our site. This article targets users who prefer the sing-box ecosystem.

The availability test simulates requests to dedicated check URLs for selected apps. Based on what comes back, it can help you gauge whether your current network can reach those apps and whether you appear to fall into a given country or region’s service area.

Please note: results are not guaranteed to be accurate, and not every service can clearly report a country or region. The feature is meant for a quick, practical snapshot of app reachability in your current environment—not a definitive geo or compliance check.

Many availability checks are built in. You can add or remove the apps you care about in Settings.

Each run is very fast, uses very little data, and has a minimal resource footprint on your device.

Try changing network or switching to another server. If you need a more stable long-term setup, use the latest 5UF VPN app instead of relying on the old browser-based solution.

If the app reports that the connection limit has been reached but you confirm you are not actually using more devices than your plan allows, wait a short while first: the system will usually remove stale sessions automatically.

If it still does not clear after about five minutes and you confirm no one else is sharing the account, you can:

• Open the online sessions page in a browser (sign in required): /transferlog/vpn/online/1/
• Or in the app: go to Settings, open your profile card, tap Online connections, then swipe left on a session to force disconnect it.

Important: If a device is actively using the VPN, a forced disconnect may reconnect immediately. Stop or disconnect the VPN on that device first, then force the session offline if needed.

If you are using the latest 5UF VPN app, long-term connection failure is usually uncommon.

If you are on an older iOS release (for example iOS 15 or earlier) or you cannot use the official app on your device, you may hit compatibility or installation limits. Use a third-party VPN client with 5UF and follow this guide: How to use a third-party app with 5UF VPN (tutorial). The reinstall, speed-test, and ticket steps below mainly apply when you can run the official app.

On iOS 16 or later, update the official app to 5.3 or newer from the App Store before the steps below.

If the VPN cannot connect, the Connect button does nothing, throughput feels sluggish, or you are connected yet nothing resolves over the tunnel, work through this checklist:

1. What if tapping Connect does nothing?

This is usually not caused by the server itself. In most cases, the app was denied VPN permission the first time it asked the system to create the VPN connection.

The fastest solution is to reinstall the app.

• Uninstall the current app
• Install the latest 5UF VPN app again
• When you tap Connect again, allow the system to create the VPN connection

If the first permission request was denied, the system often will not properly trigger the VPN authorization flow again, so reinstalling is usually the fastest and simplest solution.

2. What if the VPN connects but the speed is slow?

The latest app already includes built-in speed testing and app availability checks on the home page, so you can evaluate the current network condition before switching servers blindly.

• You can test latency for servers in different countries from the home page
• In general, a result of under 1 second is considered relatively normal
• After switching to another server, the app can test again so you can compare quickly
• The app also checks availability for major services such as TikTok
• It can also help you identify which service region the current server is closer to, such as Japan or Hong Kong

These tools help you quickly understand whether the problem is caused by the current server, your current network environment, or the service you are trying to use.

3. The tunnel shows connected, but absolutely nothing loads — then what?

If the VPN connects successfully yet browsers and apps remain completely unreachable, don't assume it's only the remote node — check whether your local uplink network is blocking or rewriting traffic.

• Switch networks (Wi‑Fi vs cellular vs another ISP hotspot). If browsing works normally on another network, the issue is likely specific to your previous network exit.
• Clarify whether this ever worked before on the same network, or started only recently — that timeline narrows investigations a lot.

When you're already in the connected-but-no-Internet situation and reinstalling, plus resetting rules to defaults/clearing custom policies, still doesn't help — try a full quit of the desktop/mobile client:

• iOS/iPad/macOS: make sure there's no lingering VPN/control icon in the menu/status area after you quit (exact UI varies). If unsure, swipe the app away from the app switcher, then reboot when needed.
• Windows: ensure the tray icon is gone — if unsure, inspect Task Manager for orphaned processes or restart Windows before launching only the 5UF client.

After a clean reopen (or reboot), open a ticket and attach network diagnostics, speed test output, app availability results, and uploaded logs wherever the form offers them — those artefacts help us troubleshoot stubborn edge cases faster.

4. What if none of this fixes it?

If you followed the checklist but the VPN stays slow, never connects, or still cannot reach anything while connected, use the integrated ticket wizard and ping support.

• Open the support ticket section in the latest app
• At the bottom of each ticket page, you will see related action buttons
• Send the test results to support
• Our support team can use your speed test, app availability test, and network diagnostic results to identify the issue faster

The ticket system now supports better email and push notifications, making it easier for us to contact you and solve the issue more quickly.

Recommendation: when you run into a problem, start with the built-in speed test, app availability check, and ticket feedback tools in the latest 5UF VPN app. This is usually faster and more accurate than describing the problem manually.

If TikTok still shows a black screen, fails to load, or redirects to Douyin even after you connect to a VPN, the problem is usually not just the IP address. TikTok also checks your current phone and network environment.

We recommend using the latest 5UF VPN app.

Quick setup:

1. Fully close TikTok first.
2. Turn on Airplane Mode and wait a few seconds.
3. While Airplane Mode is on, manually turn Wi-Fi back on.
4. Open the 5UF VPN app and connect to an available server.
5. After the VPN is connected, open TikTok.
6. Once TikTok loads normally, you can usually turn off Airplane Mode and return to normal mode.

Recommendations:

• Try to avoid Hong Kong servers, as they may affect TikTok region detection.
• For the same TikTok account, try to keep using the same server to avoid cross-region recommendations.
• If one server does not work well, switch to another server in the same region instead of changing countries too often.

If it still does not work:

• Switch between Wi-Fi and mobile data, then try again.
• Change to another non-Hong Kong server.
• Fully close TikTok and reopen it.

For long-term stable TikTok use, keep using the latest 5UF VPN app and try to maintain a stable server and network environment.

1. What is the Push Notification Test?

To ensure you receive customer support replies, account alerts, and important service updates, 5UF VPN now includes a Push Notification Test feature.

Tap “Start Test,” and a test notification will be sent to your device. The result will show:

• ✅ Delivered

• ❌ Failed

This helps you verify whether push notifications are working properly.

2. Why do VPN apps face more push issues?

VPN apps are more likely to encounter push delivery issues due to:

• Android devices in China not supporting Google FCM

• Manufacturer ROM restrictions (MIUI, EMUI, ColorOS, etc.)

• Aggressive battery optimization

• Network policy conflicts

Regular testing is recommended.

3. Special Notice for Android Devices in Mainland China (Important)

Android devices sold in Mainland China:

• ❌ Often do not support Google FCM

• ❌ May restrict overseas push channels

• ❌ Frequently disable background connections

You may need to:

1️⃣ Enable Auto Start

Settings → App Management → 5UF VPN → Allow Auto Start

2️⃣ Disable Battery Optimization

Settings → Battery → App Power Management → No Restrictions

3️⃣ Allow Background Activity

Make sure the app is not restricted or “deep sleeping.”

Brand-specific paths:

• Huawei: Battery → App Launch Management

• Xiaomi: App Management → Battery Saver

• OPPO / vivo: Background Freeze Management

4. What if the test shows “Failed”?

Please check:

• Notification permissions are enabled

• Network connection is stable

• Restart the device

Some Android systems temporarily suspend push channels.

5. Delivered but no popup?

Possible reasons:

• You were using the app

• Notification was delivered silently

• Marked as low priority

Check your notification history.

6. Does VPN status affect push delivery?

Generally no.

However, delays may occur when:

• Switching VPN nodes

• Experiencing unstable network

• Device enters deep power-saving mode

7. When should I test?

Recommended after:

• Changing devices

• Updating system

• Updating 5UF VPN

• Suspecting missed notifications

8. Why are push notifications important?

Push notifications ensure you receive:

• 🔔 Customer support replies

• 🔔 Account alerts

• 🔔 Service maintenance notices

• 🔔 Security updates

This is especially important for VPN users.

9. Still not working?

Please contact support in the app and provide:

• Device brand & model

• OS version

• Screenshot of test result

We’ll assist you further.

? Simplified Explanation: Two VPN Modes

? 1. Proxy Mode

✅ What is it?

Only sends specific apps’ traffic through the VPN — like browsers or apps that support proxy settings.

? Key Features:

• Works only with apps that support proxy protocols (like HTTP, SOCKS5).

• Other apps on your system don’t go through the VPN.

• Faster and lighter on system resources.

• Some apps (like games or built-in network tools) might bypass the VPN.

• More flexible — you can choose which apps use VPN and which don’t.

? Best For:

• Browsing websites

• Light or casual VPN use

• When you only want to route some traffic through the VPN

? 2. Virtual Network Card Mode (TUN/TAP Mode)

✅ What is it?

Creates a virtual network card and takes over all traffic on your device, routing it through the VPN tunnel.

? Key Features:

• Sends all traffic (web, apps, games, system services) through the VPN.

• Supports all protocols: TCP, UDP, DNS, ICMP, etc.

• More secure and complete coverage.

• Uses more system resources than proxy mode but is more stable.

• Common in VPNs like OpenVPN, WireGuard, L2TP, IKEv2, etc.

? Best For:

• Streaming video

• Online gaming

• Remote work / accessing company networks

• Full security and encryption

Need access to apps that aren't available in the Mainland China App Store? Here's a simple step-by-step guide to help you create a Hong Kong Apple ID right from your iPhone — no VPN needed.

Step 1: Go to Apple ID Website

1. Open Safari (or any browser) and go to https://account.apple.com/account#

2. Click “Create Your Apple ID” in the top-right corner.

Step 2: Enter Your Details

1. Fill in your first name, last name, and date of birth.

2. Enter a new email address (one that hasn’t been used with Apple before).

3. Choose a strong password.

4. Set your country or region to Hong Kong.

Step 3: Add Your Phone Number

• Use your Mainland China mobile number — it’s fine!

• This number will receive a verification code, so keep it nearby.

✅ Apple allows you to verify an overseas Apple ID using a Chinese phone number.

Step 4: Set the Billing Address

1. For the billing address, you can use any valid Hong Kong format.

2. Feel free to randomly fill in the address fields — just make sure it's realistic:

   • Example:

     • Street: 88 Queensway

     • District: Central

     • City: Hong Kong

     • Postal Code: 000000

     • Phone: +852 6123 4567

3. For payment method, choose None if it’s available.

   User feedback

   Some users report that None only shows when their traffic exits via a Hong Kong IP (for example, after connecting through a Hong Kong VPN node). If you still can’t set None on a phone, try a desktop browser on a network with a suitable exit (e.g. Hong Kong) and complete your Hong Kong Apple ID at account.apple.com, then sign in on the iPhone.

Tip: You can also use a Hong Kong hotel or store address for convenience.

✅ Step 5: Verify and Complete

1. Enter the verification code sent to your phone number.

2. Apple will also send a confirmation email — open it and click the link to verify.

3. Once verified, you can sign in with your new Hong Kong Apple ID.

After signing out, return to the “Media & Purchases” section and sign in using the Apple ID you just created.

This will link your new account to the App Store and allow you to download apps from the selected region.

⚠️ A Few Notes:

• Avoid switching Apple ID regions too often — it may affect app updates and subscriptions.

• Don't use iCloud syncing with multiple Apple IDs on the same device.

• If “None” isn’t showing, check that you’re on a Hong Kong (or similar) exit IP first (e.g. connect via a Hong Kong VPN). Prefer a desktop browser to create the account on account.apple.com, then sign in on your iPhone.

Frequently Asked Questions

1. Will logging out of my Apple ID under Media & Purchases affect my device?

2. If my phone number has already been linked to another Apple account, can I still use the same phone number to create another account?
Answer: Yes, you can still use the same phone number to create or verify another Apple ID. However, the number can only be associated with iMessage and FaceTime for one Apple ID at a time. You may receive a prompt to verify which Apple ID you want the number to be used with for messaging and FaceTime.
When creating a new Apple ID, keep in mind that you must use an email address that has not been previously linked to any Apple ID. Each Apple ID requires a unique email, and the same email cannot be used to create multiple accounts.

3. What to do when you want to download apps that are only available in mainland China?
Answer: You can simply choose to sign out from the Media & Purchases account and log back into it using your mainland China Apple ID. Since both accounts are yours to manage, you can switch between them as needed to access region-specific apps.

If 5UF VPN reports VCRUNTIME140_1.dll is missing, install the official Microsoft Visual C++ Redistributable below. Do not download DLL files from unofficial sites.

❗️Encountering This Error? Follow These Steps to Fix It

If you see the error message below, don’t worry. Simply follow the steps provided to resolve the issue quickly and easily.

✅ Step 1: Go to the Official Microsoft Download Page

? Visit this official link:
? https://learn.microsoft.com/zh-cn/cpp/windows/latest-supported-vc-redist?view=msvc-170

This page contains the latest supported Visual C++ Redistributable installers.

✅ Step 2: Download the Correct File for Your Device

Scroll down to the section:

“Visual C++ Redistributable v14"

Then download the version(s) based on your system:

✅ Tip: If you're not sure, install both files to ensure full compatibility.

✅ Step 3: Install the Redistributables

1. Run each.exefile you downloaded

2. Follow the installation prompts

3. Restart your computer once finished

✅ Step 4: Launch 5UF VPN Again

After restarting:

• Double-click to launch the 5UF VPN client

• The app should now start normally without any DLL errors

❌ Important Warning

Do not download DLL files from third-party websites — they may contain malware or be outdated.
Always use the official Microsoft source linked above.

Check Your Wi-Fi Speed with Ease

With our app, you can instantly monitor your personal Wi-Fi speed. On the right side of the screen, you’ll see real-time performance indicators showing how your connection performs across various locations worldwide.

• Before VPN Connection:
  If the indicators appear mostly in red or yellow, this means your base internet connection is slow. In such cases, connecting to the VPN will not increase your speed—it will reflect the limitations of your current network.

  

• After VPN Connection:
  Click on the bar graph to view your IP address and track how it changes as you connect to different VPN locations. This allows you to quickly identify whether any issues are related to your ISP or the VPN connection itself.

  

• Refresh Any Location:
  Simply tap on a location to refresh its status and get updated performance data.

Adding 5UF to Control Center (iOS – Edit)

The following procedure outlines how to add the 5UF application to your Control Center, enabling immediate VPN activation directly from the system interface.

Step 1 — Access the Control Panel

Swipe downward from the top-right corner of the display to reveal the Control Center.

Step 2 — Enter Edit Mode

Click the edit button on the top right corner of the screen to enter edit mode.

Step 3 — Add the 5UF Control

Select the 5UF application from the available buttons at the bottom of the screen to add it to the control panel.

Completion

Once the control has been added, the 5UF VPN can be activated instantly by tapping the 5UF icon within the control panel.

Adding 5UF to Control Center (iOS – Add Control)

The following procedure outlines how to add the 5UF application to your Control Center, enabling immediate VPN activation directly from the system interface.

Step 1 — Access the Control Panel

Swipe downward from the top-right corner of the display to reveal the Control Center.

Step 2 — Enter Edit Mode

Press and hold any unoccupied area within the control panel, then select “Add a Control” from the options displayed at the bottom of the screen.

Step 3 — Add the 5UF Control

In the search field located at the top of the interface, type “5UF”.
Select the 5UF application from the search results to add it to the control panel.

Completion

Once the control has been added, the 5UF VPN can be activated instantly by tapping the 5UF icon within the control panel.

If you want VPN to open automatically after you sign in to your computer, use the system's built-in startup settings.

Recommendation: use the latest 5UF VPN app together with the operating system's auto-start feature. This is more stable than older client-based solutions.

Windows:

• Add the 5UF app to your startup items.
• For more reliable startup behavior, run it with administrator permission if needed.

macOS:

• Add the 5UF app to Login Items in System Settings.
• This allows the app to start automatically after you sign in.

If you also want it to connect automatically after launch, make sure the related in-app option is enabled.

Windows Setup Instructions for 5UF VPN Auto-Launch

Follow the steps below to configure 5UF VPN to start automatically when you log into your Windows account:

Step 1: Open the Run Dialog

Press the Windows + R keys simultaneously to open the Run dialog box.

Step 2: Access the Startup Folder

Type the following command into the Run box and press Enter:

	
	

		shell:startup 
	

This will open the Startup folder where programs that launch at login are stored.

Step 3: Add 5UF VPN to Startup

Locate the 5UF VPN application executable or its shortcut on your computer.
Drag and drop the 5UF VPN shortcut into the Startup folder window. This action ensures the app will automatically launch every time you sign in.

Additional Tips:

• If you do not have a shortcut, right-click the 5UF VPN.exe file and select Create shortcut before moving it to the Startup folder.

• To remove the app from startup, simply delete the shortcut from this folder.

  

Mac Setup Instructions

Method 1: Using the Dock

1. Launch 5UF VPN.

2. In the Dock, right-click (or Control-click) the 5UF VPN icon.

3. Hover over Options and select Open at Login.

Method 2: Using System Settings

1. Open System Settings → General → Login Items & Extensions.

2. Click the + icon.

   

3. Select Applications.

4. Locate and select 5UF VPN.app.

5. Click Open to add it to your startup applications.

   

Step 1: Identify Your Linux Distribution and System Architecture

1. Determine Your Linux Distribution
   Open the terminal and execute:

	


	
	

		cat /etc/os-release
	

This displays information about your Linux distribution.

1. Check Your System Architecture
   Run:

	


	
	

		uname -m
	

• Output x86_64: your system uses a 64-bit Intel/AMD processor — download linux-amd64 packages.

• Output aarch64: your system uses a 64-bit ARM processor — download linux-arm64 packages.

  
  

  

Step 2: Access the Download Page

Visit /download_app

Step 3: Select and Download the Appropriate Linux Package

On the website, choose Linux as your platform. Review the available package formats — .deb, .rpm, .appimage — and select the one compatible with your Linux distribution and preference. Then, download the package matching your system architecture (amd64 or arm64).

Step 1: Verify Your Processor Architecture

For Windows Users

1. Open System Information
   Press Windows + R, type msinfo32, and hit Enter.

   

2. Check System Type

• If System Type shows “x64-based PC”, your processor supports AMD64 (x86-64) and is compatible with the standard Windows AMD64 version.

• If System Type shows “ARM-based PC”, your device runs on an ARM processor and supports Windows ARM64.

  
  

  
  

Step 2: Access the Download Page

Visit: /download_app

Step 3: Select Your Platform

On the website, select Windows from the list of platforms.

Step 4: Download the Correct Version

• For x64-based PCs, download the AMD64 version.

• For ARM-based PCs, download the ARM64 version.

  

Steps to Download the Correct Version for macOS

1. Determine Your Mac’s Processor Type

   • Click the Apple menu () in the top-left corner of your screen and select About This Mac.

   • Under Chip or Processor, identify whether your Mac uses Apple Silicon (e.g., M1, M2, M3) or Intel.

     

2. Access the Download Page

   • Visit: /download_app

3. Select macOS as Your Platform

   • On the website, choose Mac from the list of available platforms.

     

4. Download the Appropriate Version

   • For Apple Silicon (M1, M2, M3) — select the ARM64 version.

   • For Intel-based Macs — select the Intel x86_64 version.

     

• Roaming is very expensive — often $10–15/day
• Speed is usually limited and may have daily caps
• Not suitable for long-term or high-volume use

• Buying a local SIM card (e.g. China Unicom, China Telecom)
• Using a secure VPN to bypass the GFW

• Search: Google, Bing (EN), DuckDuckGo
• Social: Facebook, Instagram, Twitter, Threads, Snapchat, X
• Messaging: WhatsApp, Telegram, Signal, Messenger, Line
• Streaming: YouTube, Twitch, Spotify, Netflix (partially)
• Cloud: Google Drive, Dropbox, OneDrive, iCloud (partly)
• Email: Gmail, ProtonMail, Outlook (unstable)
• News: BBC, CNN, NYT, Wikipedia (EN)