When updating the ZTE MF90 firmware no brand, there are several precautions to take:

Finding unbranded or "no brand" firmware for the mobile hotspot typically involves sourcing generic software to replace carrier-specific versions (like Bolt, Beeline, or Airtel). This process is often part of debranding the device to remove carrier bloatware and restricted settings. Firmware Options and Sources

"The No Brand firmware is dangerous," Chen muttered to the empty room. He wasn't talking about viruses. He was talking about freedom.