Attempting to access shell Airtel F670L using UART

[saurabhshri]

Most definitely a dumb question -- what could be achieved by getting a shell on ISP ONT?

 

[JB701]

you can do whatever you want, its the linux shell so you will be able to run linux scripts, see all the files etc

 

[thisiscorgi]

from bottom up: vcc gnd rx tx ?

 

[thisiscorgi]

So I was able to get into the boot process but it's not taking input.

Can you guys help why?

 

[thisiscorgi]

update: the newer f670l has different order of pins, its vcc, tx, rx and gnd from bottom up from my last pic.
i see boot process, can stop autoboot and i am limited to some uboot commands but if boot is not interrupted, it proceeds to boot completely.

upon hitting enter key, it asks for login and password but unfortunatley whatever combination i tried from the internet resulted in failure.

so if anyone knows a way to retrieve the pass or has gained access to it via uart, please share your knowledge.