1. Uvod
This manual provides detailed instructions for the setup, operation, and maintenance of your Yoidesu 4G LTE USB Modem. This device functions as a mobile WiFi hotspot, allowing multiple terminals to access the internet via a 4G LTE network. Please read this manual thoroughly before using the product to ensure proper functionality and safety.
2. Sadržaj paketa
Provjerite da li su sve stavke prisutne u paketu:
- 1 x Portable WiFi Modem (Yoidesu 4G LTE USB Modem)
- 1 x Korisnički priručnik (Ovaj dokument)
3. Specifikacije
| Feature | Opis |
|---|---|
| Vrsta stavke | WiFi Modem |
| Materijal | ABS |
| Zadana IP adresa | 192.168.100.1 |
| Podržani LTE opsezi | B1, B3, B7, B8, B20, B38, B40, B41 |
| Maksimalna brzina | Do 150Mbps |
| Zadani SSID | 4G--xxxx (where xxxx is a unique identifier) |
| Default WiFi Key | 1234567890 |
| Tip slota za karticu | Standard SIM card (not included) |
| Boja | Bijelo |
4. Upute za postavljanje
Follow these steps to set up your 4G LTE USB Modem:
- Umetnite SIM karticu: Locate the standard SIM card slot on the modem. Carefully insert your activated standard SIM card into the slot. Ensure the SIM card is correctly oriented as indicated on the device or in the diagram below.

Figure 4.1: Yoidesu 4G LTE USB Modem with SIM card slot visible.
- Povežite se na napajanje: Plug the USB modem into a power source. This can be a USB port on a computer, a USB wall adapter, or a power bank. The device will power on automatically.
- Indikatorska svjetla: Observe the indicator lights on the modem. A steady light typically indicates a successful connection to the 4G network. Refer to the troubleshooting section if the light behavior is unexpected.

Figure 4.2: The modem providing WiFi connectivity to multiple devices.
5. Uputstvo za upotrebu
Once the modem is powered on and connected to the 4G network, you can begin using it as a WiFi hotspot.
5.1 Povezivanje uređaja
- Omogući WiFi: On your device (e.g., smartphone, laptop, tablet), enable WiFi.
- Skeniranje mreža: Traži available WiFi networks. You should see a network named "4G--xxxx" (where xxxx is a unique identifier for your modem).
- Povežite se: Select the modem's network and enter the default WiFi key: 1234567890.
- Više uređaja: The modem supports up to 8 connected devices simultaneously, including mobile phones, laptops, computers, and smart TVs.

Figure 5.1: Multiple devices connected to the modem's WiFi network.
5.2 Sigurnosne značajke
The Yoidesu 4G LTE USB Modem utilizes WPA and WPA2 WiFi encryption protocols to secure your network and prevent unauthorized access. It is recommended to change the default WiFi key for enhanced security.

Figure 5.2: Device security features.
5.3 Pristup postavkama modema
To access advanced settings, such as changing the SSID or WiFi password, connect a device to the modem's WiFi network and open a web preglednik. Unesite zadanu IP adresu 192.168.100.1 into the address bar. You may be prompted for a username and password (refer to the modem's label or packaging for default credentials, if any).
6. Održavanje
To ensure the longevity and optimal performance of your Yoidesu 4G LTE USB Modem, follow these maintenance guidelines:
- čišćenje: Use a soft, dry cloth to clean the exterior of the modem. Avoid using liquid cleaners or abrasive materials.
- Skladištenje: Store the modem in a cool, dry place away from direct sunlight, extreme temperatures, and humidity when not in use.
- Rukovanje: Pažljivo rukujte uređajem. Izbjegavajte ispuštanje ili izlaganje jakim udarcima.
- ventilacija: Ensure the modem has adequate ventilation during operation to prevent overheating.
7. Otkrivanje problema
If you encounter issues with your Yoidesu 4G LTE USB Modem, refer to the following common problems and solutions:
| Problem | Mogući uzrok | Rješenje |
|---|---|---|
| Nema internetske veze | SIM card not inserted correctly or not activated. No 4G signal. Incorrect WiFi password. | Ensure SIM card is properly inserted and active. Move to an area with better 4G coverage. Verify WiFi password. Restart the modem. |
| Uređaj se ne uključuje | No power supply. Faulty USB port/adapter. | Connect to a different USB power source. Try a different USB port or wall adapter. |
| Spora brzina interneta | Weak 4G signal. Too many connected devices. Network congestion. | Relocate the modem for better signal. Disconnect unnecessary devices. Contact your mobile network provider. |
| Ne mogu se povezati na WiFi mrežu | Incorrect WiFi password. Modem not broadcasting WiFi. | Double-check the WiFi password. Ensure the modem is powered on and indicator lights are normal. Restart the modem and your connecting device. |
8. Garancija i podrška
Your Yoidesu 4G LTE USB Modem is covered by a manufacturer's warranty for 90 days from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
For technical support, warranty claims, or further assistance, please contact Yoidesu customer service or visit the official Yoidesu store page:
Yoidesu Store: https://www.amazon.com/stores/Yoidesu/page/9E42D849-CC6F-49C2-A653-8E737C09458E
Please have your product model (B0F8C11LBZ) and purchase information ready when contacting support.