You can set data usage limits in the "Network Settings" menu. The router can be configured to automatically limit speeds or disconnect once a certain threshold is reached to avoid overage charges.
Some Tianjie routers can send/receive SMS via the web interface. tianjie 4g wifi router manual
Regardless of whether you have a black box, a white dongle, or a battery-powered travel router, these are almost always the default credentials: You can set data usage limits in the "Network Settings" menu
If you inserted a microSD card, you can use the router as a simple network drive. Regardless of whether you have a black box,
For security and personalization, change the default credentials immediately.
: Ensure you use a standard or micro-SIM card as required by your specific model (e.g., uses a standard SIM)
If you changed the WiFi password and lost it—or bought a used router—you need a hard reset.