Upload the .bin file and wait for the progress bar to reach 100%.
For units stuck in DFU mode (no OS loaded), a specific USB resetter firmware may be required to revive the boot chip. To give you the most accurate guide, could you tell me: firmware gm220s top
If your GM220S has built-in Wi-Fi, early firmware versions often struggled with high client counts (e.g., more than 10 devices connected). Upload the
Fully supports OMCI for remote management and is compatible with standard OLT systems Firmware & Configuration Highlights firmware gm220s top