Is it safe to update Android manually?
Though the upgrade is not supposed to do any harm to your files under normal circumstances, but for your own interest, you should do so..
What is security patch update in Android?
A security patch is just another update, though generally a lot smaller with changes to individual frameworks and system modules rather than system-wide improvements or changes.
Do Android security updates matter?
Well it might not matter too much but it feels more safe being up to date. Sure maybe for most people they wont every see any exploits being used against them. … Security Updates are really critical especially from exploits like Spectre and Wi-Fi KRACK, etc.
Is system update necessary for Android phone?
There are reasons why you get warnings about updates: because they are often necessary for device security or efficiency. Apple pushes out only major updates and does so as a whole package. But there are instances when Android pieces can be updated. Many times these updates will occur without your assistance.