With custom ROM you can have features that are not supported by original ROM. ROM is another name for the OS of your android device. Remember a hard-bricked smartphone can become as useful as a paperweight. This may cause data loss or soft/hard bricking your phone which is a really bad thing while flashing. Note: You should not try flashing your phone if you don’t know what you are doing. Restoring your phone to the stock firmware means to make it as it came in the box.This is done after installing a custom recovery. Installing a custom OS (such as Cyanogen OS rather than Stock) so as to get a customized experience, get remove bloatware, or the other reason.Use a tool like Nandroid Backup to perform a full backup of your phone, and lots of other things. One among these could also be a file which “roots” your phone, allowing you to try a variety of different things that are usually blocked because they require “ Super user” permission. Usually done after installing a custom recovery, the recovery allows you to “flash” arbitrary files.
Installing a custom recovery (such as TWRP or ClockworkMod), which allows you to try things like making a backup of any part of your phone, root your phone, install or flash zips containing a custom OS, and lots of others.And if we speak in layman’s terms, flashing will come under these activities: 4.1 What risks are involved in flashing your androidįlashing refers to overwriting one of your phone’s partitions with an image you may have downloaded elsewhere, but it usually extends to installing many other things, such as root or another OS on your phone.4 A step-by-step guide to flash a phone.