yashsingh1/xdaforums huggingface dataset:
[Upgrading, Modifying and Unlocking] akhil1987c:
I was unlocked my JMR 541(JMR 541 - FXN_JMR541_R3.10) 3 month ago as per your process and it was working fine but yesterday it's got auto updated and version showing as JMR 541 - FXN_JMR541_R3.16 now and

locked by Jio network and now unable to use other sim so again tried to unlock with your process but getting error (remote: Image is locked) please work on it to crack this issue.

Thanks
[Upgrading, Modifying and Unlocking] abhimortal6:
Let us know if it's working fine..
[Upgrading, Modifying and Unlocking] yashtronx:
I don't use it all through the day so cant confirm about no updates if i do somehow receive later as of now

But firmware working fine flashed both recoveryfs and system with latest patched one

Tested Airtel Working fine

Hopefully it doesn't get updated and work fine after reset too

Thanks again
[Upgrading, Modifying and Unlocking] illuminati200:
get the solution of it as possibly you can
[Upgrading, Modifying and Unlocking] sdomermpc:
is it possible to push the modded firmware through update channel
[Upgrading, Modifying and Unlocking] net8:
How were you able to dump rom partitions?

Please answer if you are willing to share that info. I can try other models if possible.

Please...
[Upgrading, Modifying and Unlocking] abhimortal6:
Honestly it's nothing new or something which is not available publicly. If you'll search on this same thread you'll find the same question been answered multiple times.

Get an entry point: In this case it's UART it's root shell. That's all, you've got root on a machine running linux(Android). Dumping, extracting, repacking are the easy parts Mapping and Reverse engineering the firmware is the one where either you run out of coffee or coffee run out of you.

I apologise but I can't write a step by step guide it'll take weeks also I have a day job and hope you understand I get nothing out of this :). So I'll list out the points for anyone who is willing to learn.

1. TTL, UART - Basic level communication b/w machines- For establishing communication channel

2. Linux CLI basic file system commands will do- For firmware dumping, repacking - UBI reader

3. ARM assembly- For actual reverse engineering. Important files names - 'simlock', all files with prefix 'FX'

Required hardware:

1. PC that can run IDA PRO and Ghidra - Mine's 9 year old - i3 2100 4GB RAM and I still love her

2. USB to TTL - Arduino will do.
[Upgrading, Modifying and Unlocking] M4st3rZeus:
Do you have plan to release unlocked firmware for JioFi-2 also?
[Upgrading, Modifying and Unlocking] abhimortal6:
It requires physical access to the device. As soon as I get hands on the device I'll surely try to reverse engineer it!
[Upgrading, Modifying and Unlocking] Shraaj:
I am having issues in STEP 3,After Removing Battery and Resetting and Holding Power Button+WPS Button Device Goes to boot mode as you said (3 LED Lights are Red and when we stop the button,then automatically after 2-3 seconds device is in normal mode. Like Different Colors. Please help me ? @abhimortal6 ,I am not able to Flash or anything because of this, Even i checked my Cable Twice and also ADB Drivers are installed properly,but in My Device Manger (JIOFI-Doesnt Recognized)it is there as ETHERNET DEVICE
[Upgrading, Modifying and Unlocking] abhimortal6:
Hi, please read the post carefully. I've never said to hold power + WPS button. Use reset button to boot into bootloader mode
[Upgrading, Modifying and Unlocking] Shraaj:
Yes,I did that also (after reset button) Press the Power Button Until LED Light Blinks all Red Color, connected it to my Laptop and the moment i remove my fingers from power button device going automatically to normal mode.?
[Upgrading, Modifying and Unlocking] abhimortal6:
You're reading it wrong there's no involvement of power or WPS button. Please read the post again
[Upgrading, Modifying and Unlocking] Shraaj:
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....

Please Tell me Step 3 in simple terms
[Upgrading, Modifying and Unlocking] Shraaj:
Sorry Brother Rectified it,Now Proceeded all the Things ,still after successful Procedure My Vi and airtel are not working,Also Flashed the File "TWICE" Says sucessful but after rebooting it 3-4 times still Other SIM are not working ? what may be the issue, I have JMR 540 Device.
[Upgrading, Modifying and Unlocking] zackfair0:
my device is not even getting detected in the fastboot menu ... did i do something wrong?
[Upgrading, Modifying and Unlocking] abhimortal6:
Read point 2 in FAQ section.
[Upgrading, Modifying and Unlocking] abhimortal6:
Read FAQ point 1
[Upgrading, Modifying and Unlocking] Shraaj:
You said IN FAQ-Try flashing recovery partition by that command!

Bro,Can You Type that Command again ,it says File Location does not exist...I mean to say,What to do after this issue? What to exactly Type in the Command Prompt ? Your Command says does not exist! Please say it clearly,and I am sorry for troubling you! I am not Good at Command and all!

Command Instructions:-

1.fastboot devices

2.fastboot flash system "D:\system.img"

3.fastboot reboot

So this new command when to enter and please type exact command.

Sorry for troubling you
[Upgrading, Modifying and Unlocking] abhimortal6:
Obviously you have to change the file’s location like you did in while flashing system. Listen I’m not trying to be rude here but I’m gonna suggest this please read word by word guide is extremely simple it doesn’t require any prior flashing/modding knowledge it’s matter of following guide.
[Upgrading, Modifying and Unlocking] Shraaj:
Thanks bro,It worked for me

Note- Tested with Vi Working but Not BSNL (My Area has 2G and 4G Network)
[Upgrading, Modifying and Unlocking] zackfair0:
so it shows up like this
[Upgrading, Modifying and Unlocking] zackfair0:
now i fixed up some issues and now it failed to flash files
[Upgrading, Modifying and Unlocking] abhimortal6:
Try FAQ's Point 2
[Upgrading, Modifying and Unlocking] zackfair0:
tried that too still the same issue
[Upgrading, Modifying and Unlocking] abhimortal6:
Refer to https://xdaforums.com/t/guide-unlocking-jiofi-3-jmr540-jmr541-for-all-networks.4285551/post-85118685

@myapky was having the same issue.
[Upgrading, Modifying and Unlocking] zackfair0:
as you recommended i tried erase and flash the original firmware and still haveing the same issue cant even flash the original firmware (FAILED)..... i still cant figure out whats the issue here
[Upgrading, Modifying and Unlocking] Killa__B:
My firmware version is showing 3.16 instead of 3.10 for jmr 541. when i try to erase its saying image is locked. please help
[Upgrading, Modifying and Unlocking] mr.sociopath:
Well, bad things happend ,got locked out , is there any way to unlock it ( jiofi3)
[Upgrading, Modifying and Unlocking] net8:
Agreed.

However, I needed to know If it was such straightforward way to dump.

Even before thinking about reverse engineering a new device, Just needed to make sure about restoring a rom back to its original state, as things are not easy - as rightly mentioned by you.

Thank you
[Upgrading, Modifying and Unlocking] Ayush4351:
Hi abhi, I have JioFi 3 and Airtel Fiber Connection, and I want to use JioFi 3 as Wifi extender, i know it is not possible with original firmware but can you enable it in hacked firmware just like Airtel 4G Hotspot modem, because airtel has this feature in original firmware, i think JioFi 3 must be capable of this thing
[Upgrading, Modifying and Unlocking] Zrk29:
Thanks bro.

I successfully unblocked my jiofi JMR541 device and tested Airtel and Vi, Working successfully. I also need not to change apn second when I changed the SIM cards. At the time flashing unlocked my device’s firmware was JMR 541 - FXN_JMR541_R3.10 and I only flashed your unlocked firmware. I want to understand can my device be locked again by jio? And which patch file you are talking about to block the update, I did not understand, can please explain?

thanks again
[Upgrading, Modifying and Unlocking] abhimortal6:
If you've flashed recently from this guide then it should be already patched to confirm you can check the file name you downloaded it'll have 'patched' word in it
[Upgrading, Modifying and Unlocking] abhimortal6:
Oh okay I misunderstood, you only wanted to know entry point apologies. Thanks for understanding though.
[Upgrading, Modifying and Unlocking] Zrk29:
Thanks for responding.

Yes it has the “patched” word. So now I need not to worry that jio will lock it again with an update, right?
[Upgrading, Modifying and Unlocking] ravi.vamos:
Current Software Version:FXN_JMR540_R6.20

Can i proceed with flash or am i too late?

Dont have access to a pc for the time being to check the image lock..pls let me know if someone went through.

EDIT: I understood i am tad bit late but am going to manually flash the nand...ewww you jio peeo
[Upgrading, Modifying and Unlocking] Raj.S:
Crap, looks like jio removed the root shell too from UART, now only bootloader logs shows there. ****.
[Upgrading, Modifying and Unlocking] ishreyas:
Hello thanks for unlocking jiofi 3 both versions

kindly share wiring diagram especially orange and black jumper cable attached to Arduino

Also share cables connected to which Test points of JioFi MoBo. (Rx, Tx, and GND)

Thank You
[Upgrading, Modifying and Unlocking] ishreyas:
@ravi.vamos how do you perform this task? can you explain this in detail?
[Upgrading, Modifying and Unlocking] sudhiryadav:
I am unable to erase my system it says image is locked

erasing 'system'...
FAILED (remote: Image is locked)
finished. total time: 0.000s
[Upgrading, Modifying and Unlocking] vysakhs:
Why u guys not reading the thread
[Upgrading, Modifying and Unlocking] rohansinghs:
remote: Image is locked)
[Upgrading, Modifying and Unlocking] jacky701:
Thanks bruh for your great work. My jiofi was lying around uselesswithout battery for atleast 4years. Now its running again all because of you❤️. You have put a great effort to unlock firmware. Keep up your work bruh.
[Upgrading, Modifying and Unlocking] MKSXDA:
1. Please modify JioCall.apk download it from play store . So that it can be use for call & sms purpose in vi & Airtel sim in jiofi Jmr541.

JioCall - Apps on Google Play

HD Voice, Video calls, RCS and Jio FixedLine number on your smartphone!

play.google.com

2. FAILED: (remote: Image is locked)

Can you Find out This problem Solution Thought Boot Short Method In JioFi Jmr541.
[Upgrading, Modifying and Unlocking] rohansinghs:
image file locked command error
[Upgrading, Modifying and Unlocking] Krz123:
Not erase show image is loacked. My firmware FXN_JMR540_R6.20. any solution???
[Upgrading, Modifying and Unlocking] Susamay:
fastboot oem unlock-go

This says OEM unlock is not allowed, can somehow developer mode be accessed manually where we can turn on oem unlock? Just saying
[Upgrading, Modifying and Unlocking] Susamay:
You're not follwing the thread, the sole purpose of this 'unlocking simlock' was only to unlock the simlock, not modifying 'Jio4G Voice Call APK' app modification (lol) and making it available for vodafone and airtel and bsnl and all the other networks, or getting shell access and changing it's bandwith or using it as a wifi extender or attaching a camera and using it as CCTV camera and etc etc.

Yes, all those things (except modifying jiocall apk) are possible (as the developer said) but somebody needs to work on those things to make it work but clearly he said he has no time for all of these and he's not getting anything out of this. So, as of now your only option to use it as a unlocked 4G Hotspot and nothing else.
[Upgrading, Modifying and Unlocking] MKSXDA:
If ( Modifying jiocall apk) is possible then please Modify it . It a Request and make it available for Download the Modifyied jiocall apk
[Upgrading, Modifying and Unlocking] panisaaa:
Hi, I installed ADB driver on both Windows 8.1 and Windows 10 in several times .Unfortunately it does not recognize the ADB driver in the device manager

What should I do?

model JMR541
[Upgrading, Modifying and Unlocking] panisaaa:
HI one question About a month ago my modem was automatically upgraded to the hacked firmware but unfortunately I accidentally selected "restore to original firmware" option and it reverted back to the original locked firmware.

How can I change the firmware back to the hacked version? If I wait will it be upgrade itself to the hacked firmware?
[Upgrading, Modifying and Unlocking] ishreyas:
No you have to flash modified firmware again, but before that check your current FW version if it is 3.20 then you cannot flash modified FW
[Upgrading, Modifying and Unlocking] panisaaa:
my device is not even getting detected in the fastboot menu
[Upgrading, Modifying and Unlocking] panisaaa:
my problem

I installed ADB driver and fastboot on both Windows 8.1 and Windows 10 in several times .Unfortunately it does not recognize the ADB driver in the device manager

What should I do?
[Upgrading, Modifying and Unlocking] panisaaa:
What should be done to automatically update the hacked firmware?
[Upgrading, Modifying and Unlocking] panisaaa:
What can I do to solve this problem?
[Upgrading, Modifying and Unlocking] vasanthraja14:
whether VI network working...
[Upgrading, Modifying and Unlocking] panisaaa:
my V 3.16 but

fastboot erase system

my problem error image is locked :cry: What should I do
[Upgrading, Modifying and Unlocking] ishreyas:
Use google platform tools. Download from Here. Extract it to D drive and copy extracted location path.

Add this path in Environment Variable -> System variable ->Path.

Then it will detect in fastboot.

Always open CMD from Platform tools folder.
[Upgrading, Modifying and Unlocking] panisaaa:
Fastboot resolved but now

my V FW 3.16 but

fastboot erase system

my problem error image is locked :cry:

I posted a photo in the previous post and the others have the same problem

FAQs 6 See said

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.

We are waiting for them to provide a future solution to this common problem

Now my device does not have an antenna for two months

Thank you very much for finding a solution
[Upgrading, Modifying and Unlocking] ishreyas:
We're in same boat bro. I've Jiofi 3 JMR540 with firmware version R6.20.

I'm also getting same error FAILED (remote: Image is locked) and I'm also looking solution for this. 🤞🤞
[Upgrading, Modifying and Unlocking] panisaaa:
my device JMR541 FW V R3.16 ok

Is there any hope that they will solve this problem in the future and let us know in the forum?
[Upgrading, Modifying and Unlocking] Cyber Tron:
Can we flash the firmware to recovery and boot from there?

Or maybe make use of the sd card slot, some how to boot from there.
[Upgrading, Modifying and Unlocking] ishreyas:
If your firmware version is 3.16 then it can be unlocked with OP's new patched firmware.

Kindly check again your currant firmware version. I think it has been upgraded to 3.20.

if possible share jiofi dashboard photo here.
[Upgrading, Modifying and Unlocking] panisaaa:
please

FAQs 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.
[Upgrading, Modifying and Unlocking] ishreyas:
I think your JMR541 has been updated to 3.16. 😢😢

AS OP @abhimortal6 mentioned in 1st post that default firmware version was quoted below
[Upgrading, Modifying and Unlocking] Cyber Tron:
Mine JMR 541 too got upgraded to 3.16. 😓
[Upgrading, Modifying and Unlocking] panisaaa:
Yes :cry: it's true

We have to wait until the future to solve this problem
[Upgrading, Modifying and Unlocking] sdomermpc:
Or buy from olx it's being sold at 800 bucks. probably never updated or in use for long time
[Upgrading, Modifying and Unlocking] OniXAtharv:
Bro my jiofi is not showing in my wifi list
[Upgrading, Modifying and Unlocking] Piyush-711:
Thanks a lot @abhimortal6 . The guide was very simple and easy to follow for layman like me. My airtel sim now works for me on my JioFi jmr541. Thank you!
[Upgrading, Modifying and Unlocking] Prinçe çharming ap:
@abhimortal6 How to change password if

I canged the password once in web browser

And i forgot
[Upgrading, Modifying and Unlocking] Prinçe çharming ap:
Reset button doesn't works, @abhimohata i have tried this method more than 10 times!
[Upgrading, Modifying and Unlocking] vasanthraja14:
Whether Vi is working now..............
[Upgrading, Modifying and Unlocking] vasanthraja14:
Already flashed unlocked, when I am trying to flash this patch, my fastboot modem not showing on adb command page it's saying "waiting for a device" kindly anyone help me....
[Upgrading, Modifying and Unlocking] vasanthraja14:
Me 2 facing same problem
[Upgrading, Modifying and Unlocking] vasanthraja14:
Earlier vodafone works, Now-a-days not working....
[Upgrading, Modifying and Unlocking] panisaaa:
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
[Upgrading, Modifying and Unlocking] sojal95925:
Bro please update the firmware its lost so many of them got automatically updated. please updated new instructions to unlock jio fi 540 please update as soon as possible thank you.
[Upgrading, Modifying and Unlocking] vasanthraja14:
Me2
[Upgrading, Modifying and Unlocking] vasanthraja14:
I personally installed two drivers mentioned...but still it's not connected
[Upgrading, Modifying and Unlocking] 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 ?
[Upgrading, Modifying and Unlocking] 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 )
[Upgrading, Modifying and Unlocking] abhimortal6:
Hi thanks, read point 3 from FAQ section.
[Upgrading, Modifying and Unlocking] 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...

xdaforums.com

& install drivers after installing also VI network was not working.......
[Upgrading, Modifying and Unlocking] vasanthraja14:
Earlier VI works in chennai, before a month it not working any solution's ....?
[Upgrading, Modifying and Unlocking] 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.
[Upgrading, Modifying and Unlocking] jacky701:
Ok bro thanks for your support
[Upgrading, Modifying and Unlocking] 8944BK:
Hello , are you on telegram or facebook? I want to send you my jiofi jmr 1040 for unlock
[Upgrading, Modifying and Unlocking] 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??
[Upgrading, Modifying and Unlocking] #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.
[Upgrading, Modifying and Unlocking] 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?
[Upgrading, Modifying and Unlocking] ravi.vamos:
It looks like it only supports fastboot...how to get into adb shell on this ? Any ideas
[Upgrading, Modifying and Unlocking] Beepboop_blues:
My jiofi 541 software version is JMR 541 - FXN_JMR541_R3.16

will I be able to flash the custom firmware?
[Upgrading, Modifying and Unlocking] Beepboop_blues:
Is the patched firmware working flawlessly with VI sims?
[Upgrading, Modifying and Unlocking] ravi.vamos:
I guess ur out of luck
[Upgrading, Modifying and Unlocking] 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
[Upgrading, Modifying and Unlocking] 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 :(
[Upgrading, Modifying and Unlocking] 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 .
[Upgrading, Modifying and Unlocking] Ujjwalsaini007:
I want to use bsnl 3G in my jiofi jmr 541 please help me

...
[Upgrading, Modifying and Unlocking] harsharyonil:
Thank you, sir

I unlocked one jiofi 3 540

but now when I have another jiofi 3 540

has version FXN_JMR540_R6.20 and when I try on this it did not work as you said

now what can I do please sir reply

and one more thing that my previous jiofi 3 540 shows always connection status detached

and continuously blink red light.

this is my email id harsharyonil@gmail.com
[Upgrading, Modifying and Unlocking] rostam2500:
hi

erasing 'system'... FAILED (remote: Image is locked) finished. total time: 0.010s

help?
[Upgrading, Modifying and Unlocking] ajaikumarnadar:
Hey @abhimortal6 , i recently flashed your hacked firmware for jmr540.. after that dont why but the devices reboots sometimes..and many times it just turns off the wifi by itself.. and i have to switch off and on to fix it. Sometimes even that doesnt fix it.. do you have any idea about this ? I am using jm540 with vi network.
[Upgrading, Modifying and Unlocking] ishreyas:
1st of all you are lucky enough that you have JioFi 3 with old firmware,

Now Reflash patched firmware ASAP. flash both partitions it will solve your problem.
[Upgrading, Modifying and Unlocking] ishreyas:
No solution for this, Read FAQ point 6
[Upgrading, Modifying and Unlocking] ajaikumarnadar:
1st, I am lucky because i didnt use jiofi for long time.. 2nd, Already i flashed patched system img into system partition and recovery partition..
[Upgrading, Modifying and Unlocking] ishreyas:
my friend @manjifera faced same problem and he flashed same modified firmware img again.
[Upgrading, Modifying and Unlocking] manjifera:
Yes as i flashed recovey and system with same patched. After new fix by jio firmware my wifi was getting disabled after some time.

I think because of flashing both partitions my device didnt get locked and i was able to flash re-patched version.
[Upgrading, Modifying and Unlocking] Winravi:
i want unlock firmware for jiofi jmr 1140. i also want band lock feature in it. please also work on this model too.
[Upgrading, Modifying and Unlocking] KaiserSakhi:
hello hope u r doing good,

i followed all the steps and flashed the image, i booted up the device inserted the sim , changed the apn for bsnl as "bsnlnet" , it didn't worked for me!

i also tried it on V! , didn't work on that either.

anything i could do ?