The device to be customized needs to be rooted before a custom ROM can be installed
The Benefits And Disadvantages of Installing Custom ROM On An Android Device
R-O-M is an acronym that stands for Read Only Memory. It is an OS (Operating System) that runs the droid. It is usually stored in the memory of the device.
ROMs can be classified into two types- The stock ROM and the Custom ROM.
This ROM type has been pre-installed from the factory by the manufacturer of the device. It's optimization depends on the device configuration. It cannot be edited by the user as it has many restrictions.
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Custom ROM By User
The fear of bricking is one of the reasons why users hesitate to install custom ROMs on their phones. When bricking occurs, the device becomes unusable and it becomes as useless as a block of brick. Another reason bricking is feared is because once a device is in that state, it cannot be recovered.
Battery Life Problem
Some of these ROMs are not completely optimized for certain devices. This causes battery life issues. If this occurs, it results in the battery not charging properly, draining more and it sometimes damage it.
Some ROMs does not support all the device hardwares. This can result in the unsupported hardware not functioning or other problems. The camera may not work or the quality of the pictures take will be poor.