Hello guys! I want to sim unlock a Note 2 from AT&T. I've have read already the process to do it but I have a few questions before I do it.
The phone is actually in version 4.4.2 and modem/baseband NJ2.
I read that I need to downgrade modem to LJ2 modem using a custom recovery.
First question is if by flashing a custom recovery would it trip the Knox counter and if yes, is there a way to do it without tripping Knox?
Also where could I find a copy of my current modem NJ2? The last one I found is NJ1.
Related
Hey guys its been a week since i bought the note 2 and i rooted it. But i cannot find how to flash a custom recovery tutorial anywhere. I am on jellybean 4.1 and the rest of the details (firmware etc) can be found on the screenshots attached..
I would highly appreciate if someone can send me a link to the guide for flashing.. thanks a lot in advance
Sent from my GT-N7100 using XDA Premium 4 mobile app
Just simply flash via Odin
You can choose CWM, Philz touch or TWRP
RazaVakil7995 said:
Hey guys its been a week since i bought the note 2 and i rooted it. But i cannot find how to flash a custom recovery tutorial anywhere. I am on jellybean 4.1 and the rest of the details (firmware etc) can be found on the screenshots attached..
I would highly appreciate if someone can send me a link to the guide for flashing.. thanks a lot in advance
Sent from my GT-N7100 using XDA Premium 4 mobile app
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Click to collapse
You got two options either root your phone while being on 4.1.2 or upgrade to official Indian 4.4.2 and then root it.Ofcourse once you root your current 4.1.2 you can try custom 4.4 ROM and if you don't like it you can go back to 4.1.2 or flash a 4.3 custom ROM. To root your 4.1.2 rom read this guide.If you decide to upgrade to 4.4.2 Indian firmware download it from here.
To flash the 4.4.2 ROM on your phone download it from the above link(there are 3 links where the ROM is uploaded) ,use any of the links and download the zip file,extract it you'll get a tar file,put your phone into download mode ,open odin v3.09 on pc and flash the official stock rom by checking the AP tab on odin.You can find tutorials on youtube on how to use odin to flash official stock firmware so just look them up if you need it.Once you flash stock ROM you can root your phone via this guide.
Okay so now things to remember.If you root your 4.1.2 ROM and want to try 4.3 or 4.4 custom ROM you need to flash MJ5 bootloader in order to have working wifi.Bootloader is flashed directly on your mother board and it cannot be downgraded only be upgraded.MJ5 is the last 4.3 bootloader which is KNOX free(what is knox ,blah blah,you can read about it on google).Advantage of MJ5 is you can try 4.1.2/4.3/4.4.2 rom and your warranty and knox remain intact but if you upgrade to official 4.3 or 4.4.2 ROM you'll be on knoxed bootlooader which means you cannot downgrade to 4.1.2 anymore plus rooting a phone with knoxed bootloader will trigger knox 0x1 and your warranty if any will be void (no way yet to reset Knox).So if you have warranty on your phone then my advise is root your 4.1.2 Rom,download any 4.3 or 4.4.2 custom ROM,you wont have wifi working then flash the MJ5 bootloader from here and read this post on how to flash bootloader.
I know it's a lot of info to you but your best guide is self reading from the above links i hooked you up with.Also read comments from people cause that's how I learned I read and read a lot before i jumped the rooting bandwagon cause wanted to make sure i don't brick my phone. Ofcourse whenever in doubt STOP RIGHT THERE and ask us.Dont attempt things that you are not sure of.Good luck.
Thanks for the help
singhpratik87 said:
You got two options either root your phone while being on 4.1.2 or upgrade to official Indian 4.4.2 and then root it.Ofcourse once you root your current 4.1.2 you can try custom 4.4 ROM and if you don't like it you can go back to 4.1.2 or flash a 4.3 custom ROM. To root your 4.1.2 rom read this guide.If you decide to upgrade to 4.4.2 Indian firmware download it from here.
To flash the 4.4.2 ROM on your phone download it from the above link(there are 3 links where the ROM is uploaded) ,use any of the links and download the zip file,extract it you'll get a tar file,put your phone into download mode ,open odin v3.09 on pc and flash the official stock rom by checking the AP tab on odin.You can find tutorials on youtube on how to use odin to flash official stock firmware so just look them up if you need it.Once you flash stock ROM you can root your phone via this guide.
Okay so now things to remember.If you root your 4.1.2 ROM and want to try 4.3 or 4.4 custom ROM you need to flash MJ5 bootloader in order to have working wifi.Bootloader is flashed directly on your mother board and it cannot be downgraded only be upgraded.MJ5 is the last 4.3 bootloader which is KNOX free(what is knox ,blah blah,you can read about it on google).Advantage of MJ5 is you can try 4.1.2/4.3/4.4.2 rom and your warranty and knox remain intact but if you upgrade to official 4.3 or 4.4.2 ROM you'll be on knoxed bootlooader which means you cannot downgrade to 4.1.2 anymore plus rooting a phone with knoxed bootloader will trigger knox 0x1 and your warranty if any will be void (no way yet to reset Knox).So if you have warranty on your phone then my advise is root your 4.1.2 Rom,download any 4.3 or 4.4.2 custom ROM,you wont have wifi working then flash the MJ5 bootloader from here and read this post on how to flash bootloader.
I know it's a lot of info to you but your best guide is self reading from the above links i hooked you up with.Also read comments from people cause that's how I learned I read and read a lot before i jumped the rooting bandwagon cause wanted to make sure i don't brick my phone. Ofcourse whenever in doubt STOP RIGHT THERE and ask us.Dont attempt things that you are not sure of.Good luck.
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Wow that's a lot of info you provided there, thanks. I am not new to rooting as far it goes I have rooted and flashed many roms on my galaxy s advance and my micromax A87 before that. But note 2 was a flagship device so there are many complications that come along which got me confused. As for now, I have my rooted 4.1.2 stock rom along with cwm recovery flashed via rom manager. I am planning to flash either DN3 or the Xperia Z-ized rom. So my question is: do I have to flash mj5 bootloader to flash DN3 and xperia z-ized or can I directly flash it from cwm (with factory reset and necessary wipes of course)?
BTW, I have heard that knox is a security application that prohibits rooting on samsung phones. It also had a reward for $18k for those who can bypass the knox on the S5 and root it. If I am right, then I think I am fairly acquainted to knox.
Once again, thanks a lot for helping! Appreciate it
RazaVakil7995 said:
Wow that's a lot of info you provided there, thanks. I am not new to rooting as far it goes I have rooted and flashed many roms on my galaxy s advance and my micromax A87 before that. But note 2 was a flagship device so there are many complications that come along which got me confused. As for now, I have my rooted 4.1.2 stock rom along with cwm recovery flashed via rom manager. I am planning to flash either DN3 or the Xperia Z-ized rom. So my question is: do I have to flash mj5 bootloader to flash DN3 and xperia z-ized or can I directly flash it from cwm (with factory reset and necessary wipes of course)?
BTW, I have heard that knox is a security application that prohibits rooting on samsung phones. It also had a reward for $18k for those who can bypass the knox on the S5 and root it. If I am right, then I think I am fairly acquainted to knox.
Once again, thanks a lot for helping! Appreciate it
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Click to collapse
Since you are on stock 4.1.2 MJ5 is required for wifi to work.i learned 2 weeks ago that even mj5 is not required as previously thought by us at least not while flashing 4.4.2 TW rom.When you flash 4.4.2 custom ROM you wont have wifi working,then flash custom kernel like agni or nadia and wifi works flawlessly so one doesn't need to flash mj5 bootloader.I am not sure if this would work on 4.3 ROM you could try xperia z'd 4.3 custom ROM then flash a compatible 4.3 custom kernel and see if wifi works if it does you're set.This was new to most of us so I asked the person who told me about this how did he manage to do this and he told me apparently custom kernels have some sort of wifi drivers on them so when we flash custom kernels on 4.4.2 ROM wifi works but it wont work on stock kernel unless you upgrade to MJ5 and on stock kernel.MJ5 is safe to flash anyways since its knox free bootloader.
Actually 4.3 and 4.4.2 note 2 phones and others got knox on them but we found a way to disable knox after rooting our phone SuperSu disables it but knox is triggered to 0x1 and there's no way to reset KNOX since it's concerned with the motherboard of the phone which is the heart and soul of out note 2.So that bounty you might be talking about how to reset it perhaps.Even if they succeed in reversing it doesn't necessarily mean it would work on note 3 or note 2 cause of the phones being of different hardware .i don't know the technicalities of this.
singhpratik87 said:
Since you are on stock 4.1.2 MJ5 is required for wifi to work.i learned 2 weeks ago that even mj5 is not required as previously thought by us at least not while flashing 4.4.2 TW rom.When you flash 4.4.2 custom ROM you wont have wifi working,then flash custom kernel like agni or nadia and wifi works flawlessly so one doesn't need to flash mj5 bootloader.I am not sure if this would work on 4.3 ROM you could try xperia z'd 4.3 custom ROM then flash a compatible 4.3 custom kernel and see if wifi works if it does you're set.This was new to most of us so I asked the person who told me about this how did he manage to do this and he told me apparently custom kernels have some sort of wifi drivers on them so when we flash custom kernels on 4.4.2 ROM wifi works but it wont work on stock kernel unless you upgrade to MJ5 and on stock kernel.MJ5 is safe to flash anyways since its knox free bootloader.
Actually 4.3 and 4.4.2 note 2 phones and others got knox on them but we found a way to disable knox after rooting our phone SuperSu disables it but knox is triggered to 0x1 and there's no way to reset KNOX since it's concerned with the motherboard of the phone which is the heart and soul of out note 2.So that bounty you might be talking about how to reset it perhaps.Even if they succeed in reversing it doesn't necessarily mean it would work on note 3 or note 2 cause of the phones being of different hardware .i don't know the technicalities of this.
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How do you know all this man??
RazaVakil7995 said:
How do you know all this man??
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Lurking around in xda and reading as much as I can and participating in discussions related to Knox.I was clueless to all this Knox and how it works.My previous phone was HTC HD2 so samsung note II was the first serious smartphone I owned so just wanted to be extra careful that I don't end up bricking my device so read and read and asked questions.
Just swapped over to tmo today and picked up an S4 with NB4. I know it can be rooted, but can I unlock the bootloader and flash a custom recovery and roms? I know about tripping the KNOX counter, but I don't care about that.
Bootloader is not locked, so in other words yes
Sweet! Is there a guide to doing this?
EDIT: Nevermind. I didn't realize it was as easy as installing Rom Manager/CWM recovery.
Yup very easy
Hey folks,
I am currently on the NE4 everything...bootloader, modem, etc. Rooted running the Samsung stock ROM. I was wondering if there was a way to just flash the NJ1 modem in ODIN without updating the bootloader?
I ask this because I want the better call signal of NJ1, but don't want to leave NE4 due to towelroot not working on the NJ1 bootloader. I don't have any custom recovery or kernel installed due to my warranty bit being 0 and would like to keep it that way for another few months until it expires.
I just bought an AT&T S3 to replace a carrier unlocked T-Mobile S3. The new device is already rooted with CM11 installed and it's baseband is MG2. I'll need to revert back to stock temporarily to do a carrier unlock. Here are my questions:
What is a safe TW (preferrably a pre-rooted TW) I can flash to perform the carrier unlock?
After I'm carrier unlocked, what is the latest modem I can install? I want to do all of this without enabling knox.
Thanks to all in advance,
Niphoet
Flashing back to stock means everything will be wiped on the phone, including recovery and data.
You can use Odin to flash the stock ATT 4.1.1 firmware from sammobile.com. Before doing so, boot into download mode and make sure you there is nothing about warranty bit on the screen.
niphoet said:
After I'm carrier unlocked, what is the latest modem I can install? I want to do all of this without enabling knox.
Thanks to all in advance,
Niphoet
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There ae several important things to know about upgrading your modem and firmware.
1) KNOX comes with all of the firmware since the officlal 4.3 release, MJB. The leaked version of the 4.3 release (MJ2) does not have KNOX.
2) Once on the MJB and later firmware you can no longer downgrade, you will most probably brick your phone.
3) It is possible to run the MJ2 firmware/bootloader and MJB modem combination on 4.3 and 4.4.x ROMs.
4) The MJ2 and MJB bootloader will most likely require a custom kernel if you use it on 4.4.x ROMs. Something like the kToonez kernel or iBuddler kernel found in Likewise.
5) Once you get past the 4.3 firmware do not mix firmware and modem release versions, again bricks are probably. If you have NE4 firmare, use the NE4 modem. The same goes for for if you have the NE4 modem, use the NE4 bootloader. This holds true for NH2, NJ1, and NKx.
6) The only time I have seen that you absolutely must be on NE4 or newer is for the Lollipop ROMs.
I have a T-Mobile Samsung Galaxy S4 (SGH-M919) which is on Android 4.4.4 (M919UVUFNK2), and has Clockwork Mod Recovery (CWM) 6.0.4.4 installed.
On this phone, I tried to flash the MDL (4.2.2) bootloader which I pulled from the M919UVUAMDL baseband as a "boot.img" and then converted it to a "boot.tar.md5" using the script in this thread: http://forum.xda-developers.com/showthread.php?t=2446269. Then I connected my phone to Odin 3.07 in download mode, and loaded the boot.tar.md5 with the option boxes: auto reboot and reset time, checked.
When I then tried to flash the bootloader, after the Odin log section did a successful check of the md5, it causes my phone to restart and then it just hangs at the Samsung logo not going any further.
At this point, I thought I could pull the battery to get the phone to reset itself, and load up correctly but that did not work. Thankfully, I made a nandroid backup in CWM, and restored my phone using the CWM recovery options.
But, how do I get my phone to successfully flash the MDL (4.2.2) bootloader on NK2 (4.4.4) in Odin? Was there something I missed?
For reference, I have listed the details of my phone below:
Brand/Series/Make: Samsung Galaxy S4
Model Number: SGH-M919
Carrier (Country): T-Mobile (USA)
Android Version: Android 4.4.4
Baseband Version: M919UVUFNK2
Phone Rooted?: No
you can not flash the MDL bootloader once you upgrade past it. This is because the new BL comes with KNOX. Once you have KNOX you can not go back away from it. You can only downgrade to the first BL with KNOX but nothing without. Hope this helps.
You can't downgrade it at all. Not even to a previous Knox bootloader.
will1417721 said:
you can not flash the MDL bootloader once you upgrade past it. This is because the new BL comes with KNOX. Once you have KNOX you can not go back away from it. You can only downgrade to the first BL with KNOX but nothing without. Hope this helps.
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Since KNOX on the NK2 bootloader prevents the MDL bootloader from flashing over it; then how would I remove KNOX from the NK2 bootloader?
XDAUserWork said:
Since KNOX on the NK2 bootloader prevents the MDL bootloader from flashing over it; then how would I remove KNOX from the NK2 bootloader?
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You can't. It's not a separate thing you can just get rid of. Why do you want to flash MDL bootloader?
serio22 said:
You can't. It's not a separate thing you can just get rid of. Why do you want to flash MDL bootloader?
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Hello. I have the same phone. I need to flash MDL baseband to check if supports, according to a user report, WCDMA 900. Do I need to flash MDL bootloader too? I'm on NK2 bootloader/baseband too. Thanks
You can't flash am mdl bootloader over an nk2 bootloader.
OK thanks. Then I'll try to flash the MDL modem to an earlier stock firmware, maybe NB4, while still running over the same NK2 bootloader. Is it doable? All this just to try if MDL supports 3G 900MHz, which I'm currently needing.
audit13 said:
You can't flash am mdl bootloader over an nk2 bootloader.
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Sorry. And what about flashing the bootloader using a JTAG interface? So i can force flash the MDL bootloader over my current Knox bootloader then? Thanks
Don't think you can even force flash it via JTAG but you can try it.
Also, flashing an older mdl modem may not enable other radio bands.
x2bc4 said:
OK thanks. Then I'll try to flash the MDL modem to an earlier stock firmware, maybe NB4, while still running over the same NK2 bootloader. Is it doable? All this just to try if MDL supports 3G 900MHz, which I'm currently needing.
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OK, I've just checked this. Downgraded to NBA the whole thing (BL, AP, CP, CSC). I didn't know that it was even possible because of knox. Then I downgraded to MDL the baseband. The result is the same, no 900MHz 3G, WCDMA, UMTS, whatever. I couldn't get even older MK2 firmware soon enough to try this, but I guess it's not point to retry for incompatibilities between 4.3 modem and 4.4.2 rom. What do you think? 2G signal was present at all times.
Next approach would be QCN tinkering because editing a few NV values didn't work either.