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SGH-M819N (Metro PCS) Mega update via Kies

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CyberChulo
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Quote:
Originally Posted by curgervending View Post
I bit the bullet and gave it a shot. I am happy to report that the firmware upgrade was successful using Kies, I was able to root the device via the Kingo Root app, and was able to re-install TWRP. I am now on firmware M819NUVUAMK7. It is still Android version 4.2.2, and the baseband is also M819NUVUAMK7. The kernel version is dated Fri Nov 22, 2013

I installed superSU and when I ran it, it asked me if I wanted to disable knox (YES OR NO). OF COURSE I DISABLED KNOX!!

I afterward performed a nandroid backup in TWRP (the first order of business).

I am more comfortable now deleting, freezing, uninstalling system apps now because (in the event of a softbrick or bootloop) I can always revert to my nandroid backup or in extreme cases, restart all over again by re-installing the firmware via Kies, re-rooting the device via the kingo root app, and reinstalling TWRP via ODIN.

Not sure what changed from the original firmware (no change log). In any event, the device is snappy and I'm not experiencing any lags.
Almost had a heart attack from this upgrade. My phone was already rooted when I applied the update from Kies. Everything went through fine except when it restarted, I couldn't turn on Wifi at all and I was getting an E in the cell signal. I managed to download the TWRP tar file and Kingo app to root again. I was able to restore my previous backed up image and everything was when I last left it! WHEW!
 
curgervending
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That's strange. I had no problem. wifi worked and I haven't seen E at all (only 4g lte or 4g). My signal appears to be stronger and more stable with this update than with the original firmware (most of the time I have full bars). As mentioned I don't know what changes were made (no change log around) but this is my observation so far.

Sent from my SGH-M819N using xda app-developers app
 
krazykipa
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Can somebody running MK7 please boot into download mode quickly to check whether this update has a new Knox bootloader?
(Vol - , Home, Power)

Need to know if the following strings are present or not:
KNOX KERNEL LOCK:
KNOX WARRANTY VOID:
BOOTLOADER RP SWREV:

Thanks in advance.
 
curgervending
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[QUOT1.0razykipa;50763526]Can somebody running MK7 please boot into download mode quickly to check whether this update has a new Knox bootloader?
(Vol - , Home, Power)

Need to know if the following strings are present or not:
KNOX KERNEL LOCK:
KNOX WARRANTY VOID:
BOOTLOADER RP SWREV:

Thanks in advance.[/QUOTE]

This string is present on my phone in download mode:
BOOTLOADER RP SWREV: 3

I have no lines displaying anything about KNOX.

In titanium backup I froze knox 1.0, knox notification manager 1.0, and knox store 1.0.

So it appears that knox is in the rom somewhere but it's had no impact on me. I'm rooted, have twrp installed and have flashed multiple custom roms on my device (both tw and aosp based roms).
The Following User Says Thank You to curgervending For This Useful Post: [ Click to Expand ]
 
krazykipa
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Perfect, thanks! Glad you guys got spared from the horrid new Knox bootloaders. There's a small chance that the M819 can be downgraded to the older bootloader to remove Knox entirely, but if the update came with the newest bootloader (I got stuck with it on my i527M) there is no hope at all of downgrading.
 
raybenzino77
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Talking Thanks to whoever posted this and the creator of this rom

Quote:
Originally Posted by bnb25 View Post
as far as i know. there isn't a mod for Metro's phone. there are a few custom ROM's you can use that have free tethering built in. This one is the closest to stock. http://forum.xda-developers.com/show....php?t=2608110

It works fine on my M819N
I have the sgh-m819n metro pcs model running the mk7 firmware. This was the only rom that worked 100% for me. Im running twrp recovery,super user and free hotspot. Not to mention all the extra cool apps that it comes with. Big props to the developers of this software may your days be blessed with many more hacks.
 
djsolo13
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Must be unrooted to perform update thru kies without errors..

Galaxy Mega 6.3 On Liquidsmooth rom posted this
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