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Root [MetroPCS/CDMA] Reverting back to 4.1.2

ex0r

Newbie
Dec 26, 2010
35
1
Alright, so I made the mistake of installing the 4.2 update a couple of days ago, and my phones ability to function has slowly deteriorated since. At first, my wifi was working fine, than it slowly started going out, and now it's to the point where it doesnt work at all. It tells me 'Internet connection unstable', of which it never did before on 4.1.2. I can still access my local network, but anything outside of the network is not working. (I can remote desktop into my desktop computer from my phone via 192.168.1.102, but i cant access google.com)

I want to go back to 4.1.2, where I don't have these damn issues. I don't get service in my house, so I have to rely on my wifi, and when it's not working, I essentially have a brick.

I am not rooted, and am 100% stock. I want to go back to 4.1.2, but not sure what I need to do. Also, i've tried the 'fixes' online that people have suggested, done a hard reset, a soft reset, and also turned on and off wireless searching, and its still not working.

I need a solution, right now my phone is essentially a brick as I cannot use it. (Its not my internet, it does it on ALL wifi, no matter where I go)
 
There's no "Going back" in ROMs. You totally replaced 4.1.2 with 4.2. That's all that's in your phone right now. You're going to have to find a copy of 4.1.2 set up the same way tht 4.2 was set up (installable from CWM, installable through Odin, whatever) and install it.

You didn't give us the model number (the S3 comes in a whole basketfull of numbers) but SamMobile Firmwares probably has a few versions of Android for your phone. (Pay careful attention to the whole line - you want the CDMA version for MetroPCS. The TDMA versions are for the TMobile towers and will probably brick your phone. And do yourself a favor - don't be tempted by 4.3 if they have it - it's a bug. There are rumors that 4.3.2 is fixed, but they're only rumors at this point.)
 
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DO NOT try to revert. you will end up with a bricked phone, one that people arent even sure if booting off sdcard can fix. you have teh new bootloaders and thus cannot return to anything lower than NA1.

you can however install a custom recovery and then install a custom rom and hope that fixes it up for ya.
 
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DO NOT try to revert. you will end up with a bricked phone, one that people arent even sure if booting off sdcard can fix. you have teh new bootloaders and thus cannot return to anything lower than NA1.

you can however install a custom recovery and then install a custom rom and hope that fixes it up for ya.

What about doing what firenemesis said to do, with using odin and the rom he listed? I am trying to stay away from the custom rom scene, I got very used to the stock rom that was with 4.1, and had nothing but problems when i first got my s3 and rooted it with custom roms, kept locking up and rebooting by itself, and I am really trying to avoid them.

As for the model number, i'm not sure. It's the all white metropcs 4g phone, R530 is what it says behind the battery.
 
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What about doing what firenemesis said to do, with using odin and the rom he listed? I am trying to stay away from the custom rom scene, I got very used to the stock rom that was with 4.1, and had nothing but problems when i first got my s3 and rooted it with custom roms, kept locking up and rebooting by itself, and I am really trying to avoid them.

As for the model number, i'm not sure. It's the all white metropcs 4g phone, R530 is what it says behind the battery.
What version of android does it say you are on in settings
 
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