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GS4 i337 issues and Factory Reset questions
Having lots of "service" problems since the 4.4.3 update. When WiFi goes dark (phone in my pocket) and I happen to be in an area where 4G and voice service are spotty at best the phone hangs. In other words I can't seem to get it to get back onto the AT&T network, and sometimes WiFi when I get into areas where I would normally have good 4G and voice coverage. Sometimes I can flip the phone into Airplane Mode and back off and the problem goes away. More often than not I have to restart the phone to get it talking again - usually to a flood of missed texts and voicemail messages - not good. On what seems to be an increasing basis the WiFi acts like it is locked up. I can turn it off, but when turning it back on it stalls at "Starting WiFi" but never finishes unless I restart the phone.
A new SIM from AT&T did not solve the 4G & voice issue - I knew it wouldn't but that's what AT&T did for me. All of these problems started after 4.4.3 was forced on my phone in spite of my postponing it for over a month. I'm guessing that KitKat is the source of these issues but I've never done a factory reset and hate to lose any of my configuration. I have a 64GB SD card (no problems with it ever) and have moved a number of apps to it, and have turned off/hidden a bunch more stock AT&T/Samsung BS apps I don't use. The phone is backed up with the latest version of Kies (3.2.14055_3) and Helium (for the apps).
My question is - how much work am I going to have to do to get the phone back to its current state? I'm assuming that after reset I'll need to restore the phone from the Kies backup, install Helium and then restore from the Helium backup. What happens to the apps that were moved to the SD card, and the ones that are tuned off/hidden? Am I going to have to re-hide and move all of them again after the factory reset. Any chance of data loss on the SD card during, or as a result of the reset?
Sorry for the n00bish questions. I postponed KitKat for over a month while studying how to root the phone then AT&T forced the crap-a$$ KitKat update on me. I've had the phone since 4.2.2 and had ZERO issues with it until the 4.4.3 update.