My current Android phone Samsung Galaxy S4 (GT-I9506, Android 5.0) has much outdated software and OS. I would like to get much faster update cycle. The current Android and Samsung support cannot provide it. Therefore, I am thinking about rooting my device and possibly this way speeding up the update cycle.
I have installed CyanogenMod in my unrooted device unsuccessfully a few times. I think the failure may be due to the unrooted device. I think you cannot get the full control of the device without the rooting and thus insufficient updates in your device.
Can a rooted Android device have more regular update cycle? However, I am not sure if rooting can make the update cycle worser because of possible loss of the main developers' support in the device and OS.