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[GUIDE] SIM Unlock M919 4.4.2 -- Without Tripping KNOX

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By jose456891, Junior Member on 11th June 2014, 07:44 PM
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29th January 2016, 12:38 AM |#51  
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I tried this method but it didn't work for me.

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15th March 2016, 06:15 PM |#52  
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Can i do this on a S3 with 4.4.2 ( I747MVLUFOB3)? i dont know how to downgrade to 4.3 or make a SIM Unlock.

Please help me i´ll be appreciate it.

Originally my S3 was on Telcel's (México) 4.3 (I747MUMUEND3).
3rd May 2016, 02:12 AM |#53  
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Originally Posted by radoo7701

I just want to report that the method in post #13 & #14 worked for my Tmo on 4.4.4 NH7. I rooted with CF-Auto-Root first. Did not need to do any of the stuff with service mode. Just flash MDL modem in Odin, run RegionLock Away. And finally reflash NH7 modem in Odin.

will this method work on MB4?
btw i cant find mb4 or mdl modem files for odin anywhere, where can i get them?
i need to unlock my phone fast for a job!

or could i just odin the mdl modem run RegionLock Away and odin to the latest firmware??
10th September 2016, 03:47 AM |#54  
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Cant Flash 4.2.2 ROM
When i try to flash the 4.2.2 file, it says FAIL (AUTH), and i cant find the modem.bin because i cant see any folder, as you can see, in mew with that, all i got was a brick and got to flash the 4.4.2 file again... What can I do, i looked for some information and some people say its because the KNOX wont let downgrade the bootloader... Any solutions?
10th September 2016, 09:35 PM |#55  
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If the phone is running a 4.3 or newer bootloader, you can't flash back to 4.2.2. It is not Knox that prevents the downgrade, I believe it is the security settings built into the bootloader.

Did you try extracting the 4.2.2 modem from the stock T-Mobile rom?
14th December 2016, 06:16 PM |#56  
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Originally Posted by jose456891

[*] Enjoy!!!

Just did this whole procedure for the M919V (canadian version). Thanks a ton for the guide. For those who need to do this on a Wind/Freedom/Mobilicity phone, the ROM to start with is FNB5 (vs FNB4) and the modem for downgrade is MDJ ( rather than MDL. Other that that, same process.

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