[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] enewman17:
Tips, Tricks and FAQ's

Importatnt

: Remember that after flahing a new ROM that it will take a few days to see optimum results. Understand you just restored a bunch of data setting your phone up... I bet most of you do this right away... Shame on you. My suggestion is after flashing the new ROM please wait about 5-10 min at the start screen... let the phone catch a signal and let settle down for a few. After finishing the first start setup... please let it sit a few more minutes... let the phone be cool to the touch (mine gets pretty warm after doing a nandroid and a new flash) the scripts will load and the cache files will build and everything will be ready for you to begin restoring all your apps

GPS:

GPS not locking:

Unfortunately This is going to happen to some when coming from AOSP based ROMs and other carrier ports.

A couple common fixes include...

1. Returning to the stock ROM via ODIN, acquire a GPS lock then reboot into Recovery.. Wipe and Flash new ROM.

I recommend trying Chainfire's MOBILE ODIN first before the desktop version, it's really easy to use and it's free to XDA users HERE.

You can flash an ODIN package right from your phone and still retain your custom recovery, simply exclude it from the list of partitions to flash.

It will also inject ROOT if the ODIN package does not already have it... makes things really simple.
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2. Restoring a nandroid of a TouchWiz ROM with a known working GPS status, make sure all location services are enables and can obtain a GPS lock. (go to additional steps now if needed) Reboot, Wipe and Flash New ROM...

Additional steps if required before flashing new ROM:

Backup your internal storage and take out your sd-card now... just in case stuff gets deleted. Do a Factory Reset form within the restored TW nandroid. Reboot... Skip all the setup stuff... acquire a GPS lock again... Reboot into recovery Wipe and Flash the new ROM.
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3. Flash back to the AOSP ROM you were just on. Obtain a GPS lock, then reinstall ROM again and see if GPS works

4. Repeat until one of the options ends up working... Not much else to tell you to try. Good luck!

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GPS and Location Services

: If you have Google Maps installed and Google Now, you will notice Maps uses your location services a lot during the day. Apparently Google thinks we need our location tracked 24/7. Turning GPS on only when needed will help eliminate the wakelocks created by maps. Going a step further you may also want to disable the "Use Network Location", This will also stop other apps form getting your location... Most apps will let you enter your location manually so it's not really a big deal turning it off, especially when your talking about increasing your battery life.

Li-ion Batteries:

First of all I think there are a lot of misconseptions about Li-ion Batteries vs. there Ni-Mh and Ni-Cd counterparts. A lot of good information can be found here http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries.

Short story is Li-ion batteries like to be fully charged. And will give you the best performance when they are fully charged. Continuously discharging your battery till it almost dies everyday is actually hurting it. So if you want your battery to last a long time please charge it and don't worry about how long or how much screen time you can get on a single charge... your killing your battery. And continuously discharging to 0 you will get fewer charge cycles before the capacity of your battery drops. Li-ion batteries do not suffer from the dreaded memory effect like Ni-Mh and Ni-Cd, but they do wear out overtime due to varies conditions.... Li-ion batteries work by ions moving between positive and negative electrodes that are sandwiched between a thin membrane. Where as the Ni-Mh and Ni-Cd work by a chemical reaction between two metals and a catalyst. Over time the metals crystallize during charging and cause what we call the Memory Effect. Li-ion batteries have a longer life span and will keep there rated capacity longer over more charge cycles, this is why they use them.

Another thing is... calibrating your battery is total B.S. The battery your phone came with is smart. It has it's own little micro controller that regulates itself, during charging and use. During normal charging and uses the system and battery will normalize themselves.

A guide for using Better Battery Stats:

http://www.alliance-rom.com/communit...y-stats-guide/

FAQ's