[Upgrading, Modifying and Unlocking] Vismay G S:
I don't know man, I'm not experienced in these.

But I think it works like logging into google account from a PC and installing an app from PC browser google play and then the app is remotely downloaded and installed in phone.

I'm not even sure that what I mentioned in my previous post is correct. Because when I was just looking in the firmware it was like;

þÊ* www\defaults\acs.xml <?xml version="1.0" encoding="US-ASCII"?>
<RGW>

<!--FXC dongmei add start for acs 2014/9/11-->
<tr069>
<acs_url>https://macs.oss.jio.com:8443/ftacs-digest/ACS</acs_url>
<acs_username></acs_username>
<acs_password>***************</acs_password>
<conn_name>ftacs</conn_name>
<conn_psw>ftacs</conn_psw>
<inform_enable>1</inform_enable>
<inform_interval>86400</inform_interval>
<acs_secretmode>1</acs_secretmode>
<!--rollback from 60s to 24h by FXN Hugh 2015.09.18 -->
</tr069>
<management>

<acs_username>administrator</acs_username>
<acs_password>administrator</acs_password>

</management>
<!--FXC dongmei add end for acs 2014/9/11 -->
</RGW>
ÿ þÊ www\defaults\admin.xml <?xml version="1.0" encoding="US-ASCII"?>
<RGW>
<management>
<router_user_list_meta>username%password%authority</router_user_list_meta>
<router_user_list>administrator%administrator%1</router_user_list>
<router_username>administrator</router_username>
<router_password>administrator</router_password>
<multi_account>0</multi_account>
<account_management>
<account_action></account_action>
<account_username></account_username>
<account_password></account_password>
</account_management>
<web_wlan_enable>1</web_wlan_enable>
<httpd_port>8080</httpd_port>
<syslogd_enable>0</syslogd_enable>
<web_wan_enable>0</web_wan_enable>
<syslogd_rem_ip></syslogd_rem_ip>
<turbo_mode>0</turbo_mode>
<qs_complete>0</qs_complete>
<session_timeout>86400</session_timeout>
<!--Modified the session_timeout 30min to 24h, /*24h to 5min by FXN Young 2015.06.09-->
</management>
<sysinfo>
<hardware_version>FXN_B4W013_V2.0</hardware_version>
<odm>FXN</odm>
<!--FXC dongmei modify start for hv 20140912-->
<!--device_name>MIFI</device_name-->
<device_name>B04W013</device_name>
<!--FXC dongmei modify end for hv 20140912-->
<model_name>JMR520</model_name>
<version_num/>
<main_chip_name>PXA1802</main_chip_name>
<version_date1>06/08/2015</version_date1>
<web_version>NZ_MIFI_WEB_V1.05.5.20_r360</web_version>
<project_type/>
</sysinfo>
<log_management>
<acatlog_sd>0</acatlog_sd>
<acatlog_sd_support>0</acatlog_sd_support>
<sd_support_format>255</sd_support_format>
</log_management>
</RGW>
ÿ þÊL www\defaults\custom_fw.xml <?xml version="1.0" encoding="US-ASCII"?>
<RGW>
<custom_fw>
<custom_rules_mode_action>1</custom_rules_mode_action>
<custom_rules_mode>0</custom_rules_mode>
<custom_rules_list_meta>rule_name#proto#enabled#src_ip#src_port#dst_ip#dst_port</custom_rules_list_meta>
<custom_rules_list></custom_rules_list>
</custom_fw>
</RGW>
ÿ þÊd www\defaults\detailed_log.xml

you see the default username and password is administrator

you can also see that it includes a secret mode tag in which the value is 1 which denotes true.

And even this firmware is of jiofi jmr520. Manufactured by Foxconn.

I assumed because jmr540 is also manufactured by Foxconn.

I was also able to boot my device into fastboot but adb is not working.

---------- Post added at 01:00 PM ---------- Previous post was at 12:19 PM ----------

SSO login seems to be a different concept. I don't think it'll work. Sorry for wrong info.