hello my device is not detected. I tried all in FAQ 1 none is working. adb detects other devices in which debugging mode is on but jiofi is not detected. Are there any pre requisite steps before it? my adb drivers are fine and cable is also good . please help
[GUIDE][UPDATED] Unlocking JioFi 3 JMR540 & JMR541 for all networks
- Thread starter abhimortal6
- Start date
Yes you have to. I will encourage you to try and execute this step by step don't worry it'll be all fine
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Glad someone is interested
Refer this post of mine for pcb ttl point, default creds - root/oelinux1
binary name is FX_CLI_something
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Finally you got success in shell access now tell me how other 3g n 2g sim work in this jiofi
I think you should check date on twitter post. It’s not that straight forward I won’t recommend it to anyone unless it’s for RnD. Guidance is provided in previous post.
tnx means i have to extract and put it to and know location where i can locate it and flash in the fastboot,.......Yes you have to. I will encourage you to try and execute this step by step don't worry it'll be all fine
also please tell where should i put that system.img of the unlocked zip like tu said [replace path] plss explain me :]
JioFi Band Support is Band 3/5/40 i.e. 1800/850/2300 - For Jio/Airtel/Vi
BSNL 4G Support 1/41 i.e. 2100/2500
If enabling band in QPST available then yes it can be done BSNL may support @abhimortal6 can further explain.
To vhi to pta Krna h band sare unlock enable kaise kr sakte h agr ye ho jaye to jiofi best h......
Thanks it's working. 
What you have edited in the firmware, I also have a JMR815 that I want to unlock.
What you have edited in the firmware, I also have a JMR815 that I want to unlock.
hello can u tell me where the system .img ie the unlocked file shuld i putThanks it's working.
What you have edited in the firmware, I also have a JMR815 that I want to unlock.
i cant understand that step plss explain
hello bro can u tell me where to put the system.img i m unable to understand that step
plzzzzzzzz
I'll try flashing this modded firmware in my JMR541, but can anybody tell me the fastboot command for dumping the factory system image. It's been a long time around 3-4 years since I did these flashing stuffs so I forgot mostly the things...
Just Extract the zip file and copy the location of system.img like C:\Users\Name\Desktop\system.img on a windows pc. And the paste the location while flashing like this
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53Unlocked Firmware for JioFi 3 JMR540 & JMR541I 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.
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
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
1. Locate your device model and download the respective Firmware and extract it to a known location
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
FAQs
- Q. My device is not visible in fastboot devices
A. Confirm driver installation a faulty cable can also be the issue.
. - 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"
.
- 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.
. - 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.
. - 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
. - 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.
For Devs:
JMR_540_FLASH_DUMP.rar
5
Totally possible even 3G but it can't be done through WebUI it'll requires shell access.33
Can you show us dashboard screenshot. This will help other users to verify
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