[1RWN1]

I have a GS3, already rooted, working perfectly (except every time I reboot it, it cycles through some optimization process supposedly updating programs, I can't figure out why. Supposedly related to davlik cache??)

It is still on ICS because I can't use the VZW OTA update on a rooted phone, but I can't seem to figure out how to update it to JB otherwise.

Any help / advice?

[epidenimus]

Uhh... wipe, format, then flash whichever ROM you want to try in custom recovery? If you're going for a newer ROM, be sure you have the latest version of your chosen recovery installed first.

[blade22222]

Also sounds like you might have a custom rom already on there.

Sent from my SCH-I535 using Android Central Forums

[1RWN1]

Then I lose all my custom settings, apps, etc, and basically have to setup my phone from scratch again, correct?

Ugh

[CR6]

Try this link.

tap'n

[schneid]

Use this:



Simplest I've found. Will give root only or install CWMR and unlock if you want.

All stock.

[GSDer]

I'd suggest Mobile ODIN: - once you find the ROM that you want to load you're ready to roll.
I haven't seen a release of the new 4.1.2, but if you want stock TouchWiz then you should just wait until one gets posted and load it.
You can also take a look at:
Carbon:
Kies Air:
MyBackup Pro:
SMS Backup & Restore:
Titanium Backup:
(there are free/trial versions of all of them) to help make your backup/restore experience better.

Sent from my rooted, debloated, deodexed Sinclair ZX-80 running CM -0.001 using Tapatalk 2