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Portable WiFi is an indispensable tool for frequent travelers, business professionals, and live streamers alike. I recently got my hands on a Zhangu portable WiFi device, and in this article, I’ll walk you through every step of the process—from unboxing and activation to data top-up and real-name authentication. If this is your first time using portable WiFi, I hope you’ll find this guide helpful.
Portable WiFi Setup Guide
Unboxing
Inside the neatly packaged box, you’ll find the device, a USB charging cable, and a quick-start guide. The back of the product packaging features a network access license and basic information such as the device model and top-up number. Once opened, you can take out the WiFi terminal and accessories.
This Zhangu SIM-free portable WiFi doubles as both a power bank and a hotspot. It has a sleek matte finish that feels comfortable in the hand and helps prevent slipping. With a thickness of just 17mm, it’s lightweight—about the same heft as an average smartphone.
The front panel displays signal strength, battery levels (25%, 50%, 75%, 100%), and WiFi signal status. The back lists device specs like model, input voltage, network compatibility, battery capacity, as well as the default WiFi name and password. Two QR codes are also printed—one for topping up data and another for contacting WeChat customer service.
To power on, press and hold the top button for about 3 seconds. Once the WiFi indicator turns green, the device is ready. I tested mine immediately—the battery was at 75%, which was a pleasant surprise straight out of the box.
Activation
Once you’ve confirmed the device’s specs, it’s time to activate it.
Simply scan the QR code on the back using WeChat. This takes you to the top-up interface. (Alternatively, follow the official WeChat account of Zhangu Electronics and tap on the “Top-up & Inquiry” menu on the homepage.)
The top-up number will autofill. Enter your mobile number, the verification code, and click “Submit” to proceed to the data plan selection screen.
Data Top-Up
Click “Purchase Plan” to browse available data packages, including TikTok bundles, value deals, standard high-speed plans, and add-on packages. Choose the one that fits your needs.
Zhangu runs a promotion where you can get 1500GB of bonus data for leaving a 5-star review. I took advantage of it—posted my review, sent a screenshot to customer service via WeChat, and the bonus data was added shortly after.
Identity Verification
The next step is verifying your identity.
Tap on “Real-Name Authentication.” A prompt will ask if you’d like to proceed via a mini program. Click “Allow” to enter China Unicom’s real-name verification system.
Note: The process applies even if your mobile SIM is not with China Unicom. Only one authentication is needed, and it doesn’t affect your mobile number. The device is technically compatible with China’s three major carriers.
Agree to the user terms and tap “Confirm Login” to continue. The process is straightforward—use your phone’s camera to capture real-time photos of both sides of your ID. First, take the front side, then the back. You’ll then be asked to complete facial recognition. Check the agreement box and tap “Next.” Once the scan is complete, you’ll sign your name and submit the form. At this point, the device’s ICCID (SIM number) will be displayed and linked to your identity.
Before completing this step, your SIM card status will show as “Pending Activation.” Once verified and refreshed, it should switch to “Normal,” allowing full access to the internet.
Getting Online
To go online, power on your device.
When the WiFi indicator lights up and turns on green, go to your phone’s WiFi settings, select the SSID (network name) printed on the back of the device, and enter the corresponding password, you'll getting online.
The setup process is quick and intuitive. After using it for a while, I found that general web browsing and video streaming were smooth and consistent—more than adequate for everyday use.
That said, there’s one caveat worth noting: although the device claims to support all three major Chinese carriers, I noticed that switching networks didn’t change the IP address or ISP info. After some research, I learned that “tri-network compatible” is often more of a marketing buzzword. True multi-carrier support requires authentication with each network individually. Since I only completed one, it’s likely this device is locked to that carrier. But unless you’re planning to switch networks frequently, this won’t be an issue.
Lastly, I’d recommend powering off the device when it’s not in use. This helps conserve battery and data. Keep in mind, device makers don’t just profit from hardware sales—they rely heavily on recurring revenue from data top-ups!
