Steps to upgrade ONT:
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Step 1: Connect laptop(in dhcp mode) to ONT eth port and login ONT GUI by 192.168.1.1.
Step 2: Username admin, Password- MAC address in CAPS. (e.g 000F949*****)
Step 3: URL for ONT upgrdation: http://192.168.1.1/cgi-bin/upgrade.asp
Step 4: select tclinux.bin –> choose file tclinux_1.9.bin (attached file on mail) –>click ok
Note :please don’t turn off power while upgradation
Step 5: After upgrdation, do hard reset from reset pin available on back panel of the ONT.
Step 6: follow step 2 again
Note
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Original ONT software version :P4410-V2-1.3
After upgradation :P4410-V2-1.9
Step 7: For enabling telnet :- http://192.168.1.1/cgi-bin/telnet.asp
and check the box and click ok