Other details.txt

Processor
Econet en751221 (MediaTek)



Serial User Password:
user root
pass: 

Someone Have to get the password by either:
Performing dictionary/Brute attack in serial console to get the password
or
Get JIO fiber router firmware, and try to get the root password inside it

Benefits of Serial Access(if you crack the password):
Many benefits, including bridging mode support, disabling Remote access by ISP(TR-069) etc, which will start working when you login as root user (I got to know from some chinese forum about it , https://wzq.io/2018/12/11/%e5%8c%97%e4%ba%ac%e8%81%94%e9%80%9a%e5%85%89%e7%8c%abG-140W-UD%e8%b6%85%e7%ba%a7%e7%ae%a1%e7%90%86%e5%91%98%e7%a0%b4%e8%a7%a3%e5%8f%8a%e6%94%b9%e6%a1%a5%e6%8e%a5/
https://www.right.com.cn/forum/thread-374907-1-1.html
https://89lg.cn/16.html
 )


Serial Speed 115200 I used


Similar to TP-Link VR1200v/SyRotech SY-GPON-1110-WDONT
Bell G-140W-UD (newer version)
Unicom G-140W-UD 

Passwords tried:
TeleCom_1234
hg2x0
aDm8H%MdA
nE7jA%5m
stdONU101

should try:
LA(ImvZx%8
yavaiceikeerikae