Attempting to access shell Airtel F670L using UART

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JB701

JB701

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2,281
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Delhi
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..
So, today I decided to mess around with getting access to my Airtel F670L router's shell.

I was earlier trying to access the SPI flash chip of my Excitel router earlier but that wasn't able to, soldering small chips is difficult for a newb like me. So, I decided to try something easier before doing that, soldering wires on the UART pins of Airtel router to access the shell using TTL Cable.

H5qnwlm6_o.jpg


I know its a mess, i didn't clean up the flux and the yellow wire specially looks bad (though that pin is +5V and isn't needed). Thankfully I didn't short anything with solder.

After connecting orange color to TXD, green to RXD and red to GRND. I was able to (kinda) access the shell at baud rate of 115200. Sadly, I wasn't able to transmit anything to the shell. Will mess with this again when I have time and update this thread. Maybe I bridged some pins while soldering.

Here is the output file if anyone's interested (not much on there just the boot sequence stuff).

 
shahidcodes

shahidcodes

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21
Location
Hyderabad
ISP
Airtel Xstream Fibre
Hi,

I've been planning to play around with UART, any progress you made after that? I have the same ont
 
T

thisiscorgi

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22
Location
Ludhiana
ISP
Netplus
btw did u manage to get into shell?
 


T

thisiscorgi

Messages
22
Location
Ludhiana
ISP
Netplus
Is there a connection that I'm unaware of?
Also what software did you use to communicate with ttl device?
 

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