I've always wanted to try rooting my phone but, right now I'm using some crappy $30 LG android so yeah not gonna bother with this one :p
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I've always wanted to try rooting my phone but, right now I'm using some crappy $30 LG android so yeah not gonna bother with this one :p
My super cheap Samsung Intercept benefitted greatly from being rooted and installing a custom rom. It's just the more recent/powerful devices where it doesn't matter much if they're rooted. But having bloatware, minimal space, and a crappy processor make for a good case for rooting. Custom roms are easier on cheaper processors, and they don't have the bloatware to take up space and ruin battery life. But then again, I don't know how good this LG phone is. I got a cheap HTC that was garbage either way because they used a proprietary version of Android. Then I got a Kyocera that had mostly the same specs and was awesome because it used base Android. I rooted it anyway though
Using mobile data drains more battery than wifi on my S4. I wouldn't be surprised if the same is true for your S5. It depends on the usage, but for example having an IRC client running in the background which keeps a constant network connection action would drain the battery twice as fast with mobile data as it would on wifi. I guess you simply need less energy to send a signal to a wifi hotspot 5-10 meters away than you need to send the same amount of data perhaps 1000 meters.
I did not notice such a huge difference in batterly life when using wifi on my previous HTC, however. I guess it depends on the electronics used in each model.