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My wife has a Samsung Galaxy S3 with an old version of Android installed.
It is from a Spanish phone company that looks like doesn't want to update the OS for that phone...
I've seen there are methods like the one CyanogenMod is offering to install a new OS version there.
It looks like all are advantages... but... have you done that? should I have something clear before starting doing that? any advice or recommendation? A good tool to be able to make a full backup and restore the phone to the backup if something fails?
There's plenty of information in the Internet, but too much information is like no information at all...
If there is not an update available for your phone, Cyanogen is a great option. I have run it on an old (shipped with 2.3) HTC Thunderboldt, an HP Touch pad (still am there), and recently put it on an HTC One. I have not put it on an S3 or S4, but the steps are similar.
The best place I have found for each of them is http://forum.xda-developers.com/[^] to get the most current and complete steps. They are also VERY good at answering questions there when you may have made a slight mistake.
To do it:
0) Find the forum for your device
1) Find the root/ROM section for your device
2) Read the instructions for doing it from start to finish
3) download the recommended files (Biggest choice is ROM Manager, both Clockwork Mod and TWRP are really good. I just started using TWRP and think I like it better.)
4) Read the instructions for doing it from start to finish
5) Read them again just to be safe
6) Start with step one and move through them sequentially.
7) Only clear/wipe when directed
8) Only reboot when directed
It is really not very difficult once you have done it once, but a mistake can then cost you a LOT of time to figure out and get fixed. (My son grabbed the wrong version of clockwork mod because he didn't read ALL of the instructions before starting and lost access to the SDCard portion of the memory for about 4 days on an HP Touchpad.) It seems that it is much less likely that you can brick a device permanently than it used to be.
Good luck! The custom ROMs take up much less space and give you much better access to your device. I was able to run WireShark on mine the other day to solve an issue that arose.
t is from a Spanish phone company that looks like doesn't want to update the OS for that phone...
If you ever bring Kies to work, you can upgrade the android OS independently from the cell phone company layer. But this requires Kies to work, which I have never ever managed to do (Samsung S1, Samsung S3, Samsung Galaxy Tab 10.1).
I think words like 'destiny' are a way of trying to find order where none exists. - Christian Graus
Entropy isn't what it used to.
How old is your PC? Are you sure it isn't entering it's teenage years?
Those who fail to learn history are doomed to repeat it. --- George Santayana (December 16, 1863 – September 26, 1952)
Those who fail to clear history are doomed to explain it. --- OriginalGriff (February 24, 1959 – ∞)
Well, well, my almost 5-year old PC is far from dead. I mean what happen to upgrade? A little more RAM, new video-card and some HDD and the PC turned from old-aged to modern usable PC, although it is not a gaming beast.