proceso con el Modem Gpon ZTE F660 ONT
https://www.nirsoft.net/utils/router_password_recovery.html#DownloadLinks
https://help.ui.com/hc/en-us/articles/115009335068-UFiber-GPON-Supported-Third-Party-OLTs
https://www.ui.com/download/ufiber/ufiber-nano-g
http://web.archive.org/web/20190214022357/https://blog.onedefence.com/changing-the-gpon-serial-on-the-ubiquiti-ufiber-nano-g-part-two/
http://web.archive.org/web/20190214022541/https://blog.onedefence.com/changing-the-gpon-serial-on-the-ubiquiti-ufiber-nano-g-part-one/
https://github.com/melisska/ufiber_nano_serial_hack
https://community.ui.com/questions/UFiber-Nano-G-GPON-Huawei-HG8245-Configuration/56e5488c-048d-4179-a3dc-cdbcf6939617?page=1