(Settings > Device Settings > Update Management), the 2021 era saw a rise in "power users" seeking manual firmware flashes to bypass provider restrictions or fix bugs. However, flashing incorrect regional firmware (e.g., switching from a European to a Chinese version) frequently resulted in "No Service" errors due to mismatched QCN configuration files. ZTE MC801A - The EE Community
If you're still running older software or facing issues, here’s how to manage your device: zte mc801a firmware 2021
Below is a timeline of the major firmware iterations seen in 2021. Note that version numbers may vary slightly depending on your specific hardware revision (e.g., MC801A vs MC801A-1B). (Settings > Device Settings > Update Management), the