Just an FYI: I used Kingo and it worked great on MJ5, but when I was ready to upgrade the firmware to NB4, I unrooted, factory reset and then tried to upgrade...it would not let me, kept stopping at 25% then fail.
Now, when I was rooted, I uninstalled all the AT&T apps that I did not need, no important system files. When I did the unroot and reset, those apps didn't come back. I called AT&T and they tried pushing the FW upgrade, it downloaded, but still would not install.
Point being here, be careful, because I think Kingo did something that it was not supposed to. I then, with limited patience left, was turned on to this link
That link re-flashed my stock MJ5 Rom and as soon as it was completed, I was able to ungrade to the NB4 FW with no issues!
Be careful with this rooting method. PS: I never thought I'd be excited to see my at&t bloatware back on my device! LOL
Now, when I was rooted, I uninstalled all the AT&T apps that I did not need, no important system files. When I did the unroot and reset, those apps didn't come back. I called AT&T and they tried pushing the FW upgrade, it downloaded, but still would not install.
Point being here, be careful, because I think Kingo did something that it was not supposed to. I then, with limited patience left, was turned on to this link
That link re-flashed my stock MJ5 Rom and as soon as it was completed, I was able to ungrade to the NB4 FW with no issues!
Be careful with this rooting method. PS: I never thought I'd be excited to see my at&t bloatware back on my device! LOL
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