Aot4221sr Firmware Update Better __exclusive__ Direct

A new estimated time/progress bar for reboots helps users track system restarts.

After verification, exit bootloader mode (e.g., remove the BOOT0 jumper). Power-cycle the device. Restore your backed-up configuration with load_config backup.txt . Send AT+REBOOT . aot4221sr firmware update better

Connect a high-quality third-party router (e.g., from ASUS or TP-Link) and set the AOT-4221SR to bridge mode to handle the networking load. A new estimated time/progress bar for reboots helps