After many days, I figured out how to encrypt the hw_ctree.xml again and I was able to to upload this modified hw_ctree.xml successfully
The modded file persists after rebooting and checked by downloading configuration file and decrypting again
The problem is telnet still doesn't work
and port checking shows ports 23,22 are not open
Do I need to do anything else?
I tried enable telnet v5 via Huawei ONT Tools v2 and it shows failure, however it sees my router
How can I make bin file to flash a mod via Huawei ONT Tools v2?