[GUIDE][UPDATED] Unlocking JioFi 3 JMR540 & JMR541 for all networks

[vasanthraja14]

You need to install the bootloader driver to check for updates via Windows
Connect the cable first and then check for Windows Update Install the bootloader driver

I personally installed two drivers mentioned...but still it's not connected

 

[tarunisluckey]

Great work abhimortal. It is working for me with an airtel sim card. But I have another requirement. Can I read the sms coming to this sim card using an app like Jio4GVoice for airtel sim card ?

 

[jacky701]

One question abhi bro.. I have already patched this firmware and it is working fine.Thanks for your hardwork. But will this firmware be erased and go back to locked firmware if i hard reset my device(forgot password )

 

[abhimortal6]

One question abhi bro.. I have already patched this firmware and it is working fine.Thanks for your hardwork. But will this firmware be erased and go back to locked firmware if i hard reset my device(forgot password )

Hi thanks, read point 3 from FAQ section.

 

[vasanthraja14]

Finally solution here .... bootloader not showing device folllow that forum link

[OFFICIAL][TOOL][WINDOWS] ADB, Fastboot and Drivers - 15 seconds ADB Installer v1.4.3

15 seconds ADB Installer v1.4.3 ADB, Fastboot and Drivers What is this? This is All-in-One installer for 3 most needed PC tools for Android. No need to download big SDK for 3 small things. I originaly made it for my Kurdish friend AnGrY DuDe in...

forum.xda-developers.com

& install drivers after installing also VI network was not working.......

 

[vasanthraja14]

What city do u live in?

Earlier VI works in chennai, before a month it not working any solution's ....?

 

[chinna02]

hay, did you find any solution for FAILED: (remote: Image is locked) issue. Pls let me know.

Also I have an Issue with port forwarding. will you pls help. Its not working.

 

[jacky701]

Hi thanks, read point 3 from FAQ section.

Ok bro thanks for your support

 

[8944BK]

Hello , are you on telegram or facebook? I want to send you my jiofi jmr 1040 for unlock

 

[RADHEORWOT]

Unlocked Firmware for JioFi 3 JMR540 & JMR541

Disclaimer
I am not responsible for any kind of damage to your device.
Use this firmware at your own risk
Post is for educational purpose only.

ONLY FOR JMR 540 & JMR 541

​

I was able to dump and reverse engineer JioFi 3's firmware to see if I can unlock the SIM restrictions. JioFi 3 is designed by Foxconn it uses generic firmware. Unlocking took time though. Tested with Vi, Airtel.

UPDATE 17-10-21: Jio pushed a firmware update which is locking boot loader. If your device is not updated yet it is advised to re-flash your firmware with patched image given below which basically disables auto updates. If you're already locked out, currently there's no easy fix for that.

If you haven't used your device from a long time or you're still on lower or equal version than below it is advised not to use JioFi with SIM, flash this firmware first if you want to test SIM unlock.



Guide

Make sure you're on same or lower firmware version

• JMR 540 - FXN_JMR540_R6.16
• JMR 541 - FXN_JMR541_R3.10

If not please use the device for sometime it'll autoupdate.


1. Locate your device model and download the respective Firmware and extract it to a known location

• JMR540_unlocked_patched_system.zip​
• JMR541_unlocked_patched_system.zip​

2. Install drivers and tools (skip if already installed)

• Install Fastboot drivers ( google it for mac and linux it's easy to find)​
• Install Fastboot ( google it for mac and linux it's easy to find)​

3. Prepare device

• Remove battery from JioFi 3
• Locate reset pin hole button
• Lay down JioFi 3
• Use Paper Clip / SIM Ejector Tool to press button inside (using sharp object is not recommended)
• Keep pressing button down and insert USB cable
• Release button as soon as all the LEDs in Display turns RED. This means device is in boot loader mode

4. Flashing Unlocked Firmware

• Open adb and fastboot tools terminal
• Enter following to check if device is connected

• fastboot devices

• It will return something like this
• baxxxxx fastboot

• This means device is connected. If your device doesn't show up here please check drivers in Device manager
• Now first erase the system partition

• fastboot erase system

• It will return something like this
• erasing 'system'... OKAY [ 1.104s] finished. total time: 1.105s

• Now flash the firmware
• fastboot flash system "D:\system.img" ( replace path )

• It should return something like this
• sending 'system' (34306 KB)... OKAY [ 1.276s] writing 'system'... OKAY [ 9.462s] finished. total time: 10.741s

• Now send reboot command to device
• fastboot reboot

• You'll notice device will reboot normally now you can unplug the cable.

Congratulations your device is now unlocked and you can reinsert battery and another SIM for testing.

Firmware will take long time than usual to boot do not panic.​

4. Changing APN

• Insert SIM connect with JioFi 3 wait it to intialize
• Open Web UI from browser (http://jiofi.local.html/)
• Now login (default username/pwd is administrator/administrator)
• In Network Tab you'll find setting for changing APN
• Put it on manual and enter "internet" as APN (without quotes)
• Hit apply/save device will reboot again automatically and it'll auto connect
• Just wait patience is the key here it'll connect.

If something goes WRONG or you want to UNDO you can re flash original firmware which is provided in this post.


Original backup

• JMR_540_original_system.zip​
• JMR_541_original_system.zip​

FAQs

1. Q. My device is not visible in fastboot devices
   A. Confirm driver installation a faulty cable can also be the issue.
   .
2. Q. Everything went well but still no changes in dashboard
   A. After successful flash if you still don't see the changes your device is probably booting from recovery partition. Try flashing recovery partition by
   fastboot erase recoveryfs
fastboot flash recoveryfs "D:\system.img"
   .
   
   
3. Q. After resetting device from pin hole button it shows INVALID SIM.
   A. This is supposed to happen just reboot the device it'll work again.
   .
4. Q. Can I undo all this and get back to original firmware
   A. Yes just flash the original firmware provided in post and reset the device.
   .
5. Q. I 'accidentally' flashed my recovery and boot partition
   A. Well accidentally I've backed up recovery and boot download from below
   
   1. JMR540_boot_recovery.rar
   2. JMR541_boot_recovery.rar
   .
6. Q. FAILED: (remote: Image is locked) issue while erasing/flashing image
   A. Jio recently pushed an firmware update which re-locks simlock and bootloader which basically means you can't flash unsigned/custom firmware. Currently there is no fix.

​

Mentions:
Thanks to Karuppusamy for testing it on JMR541.


What about JioFi 2, 4, 5, 6?
Reverse Engineering takes lot of time and coffee. Until I get physical access to device I won't be able to unlock it. I'm constantly searching them on OLX as soon as I get hands on I'll surely try to RE and unlock it. I'll update the same here if there is no update here at the time of your reading then I haven't got the device yet so please don't spam for update hope you understand that I don't get anything by doing these things, I do it for liberation of locked hardware to meet it's real destiny and of course for the people. I also have a day job so no I cannot guide or teach you, hope you understand why.

​

hey i unlocked jio fi but after sometime i inserted jio sim in it and it restart and its bootloader got locked​

 

[RADHEORWOT]

hey i unlocked jio fi but after sometime i inserted jio sim in it and it restart and its bootloader got locked automatically what should i do now??

 

[#Satish99]

Hello developers they have already updated the firmwares and locked bootloader , now we can't flash any file. Is there any unlock steps for this updated firmware then please share, and if not then you tell me how to downgrade it and flash your unlocked firmware.

 

[Beepboop_blues]

I just bought a new JMR541 and haven't yet connected to the internet with it. Can I directly flash the custom firmware or do I have to update the router to a specific factory firmware?

 

[ravi.vamos]

Totally possible even 3G but it can't be done through WebUI it'll requires shell access.

It looks like it only supports fastboot...how to get into adb shell on this ? Any ideas

 

[Beepboop_blues]

My jiofi 541 software version is JMR 541 - FXN_JMR541_R3.16
will I be able to flash the custom firmware?

 

[Beepboop_blues]

Is the patched firmware working flawlessly with VI sims?

 

[ravi.vamos]

I guess ur out of luck

My jiofi 541 software version is JMR 541 - FXN_JMR541_R3.16
will I be able to flash the custom firmware?

 

[pawanrathod57]

sir plz update system with extra Band support Band 1 3 5 8 40 but this system only support Band 3 5 40.. Not working BSNL 4G sim plz solve this problem. Thank u sir

 

[umarabdulaa]

after i try
fastboot erase recoveryfs
fastboot flash recoveryfs "D:\system.img"
jiofi doesn't turn on anymore just stuck on the battery logo

 

[AbhishekG782]

Bro I'm using JioFi 1 ( that 1st one model ) plz tell how to unlock that JioFi , or is this setup can be used to unlock that JioFi .
I'm attaching picture of my JioFi . Plz reply bro .