If you currently on this page, we assume you don’t know how to flash a phone manually and safely and need some advice on how to go about it for the first time. Even though flashing phones can be challenging, we are certain this guide will help you get the job done.
How to flash an android phone
There are several ways to flash a cell phone manually for free. When we talk about flashing phones, we also mean reprogramming them. Android OS was designed for extreme customization. One who knows the steps properly can safely turn their old android phones into brand new ones.
Step 1: Backup your phone’s data to your computer
If you fail to backup your data, you will lose them after flashing. You can find backup apps on the Play Store. Look for Titanium Backup and Helium to backup the data to your computer and you can restore it later.
Step: Root your phone
Before you can flash your phone with a custom ROM, you need to change your bootloader settings. Bootloader is the same as BIOS on a computer. Unlocking bootloader varies from phone to phone. Once you’re done unlocking the bootloader, you should root your phone. Rooting an android increases the chance of successful flashing of ROM. Apps like Kingo, SuperSU Pro Root App are good apps to root your phone.
Step 3: Download custom ROM
The most popular ones are CyanogenMod, Paranoid, Carbon, and MIUI. You might be wondering how to flash a phone without a computer, but we’d suggest you download the ROM to your computer and then move it to your phone manually.
Step 4: Boot phone into recovery mode
To boot phone into recovery mode, hold Volume Down + Power button. That will take you to bootloader. Once there, you’ll have to use your phone’s volume buttons to navigate through. Use Power button to select and enter recovery.
Step 5: Flashing ROM to your android phone
Once in recovery mode, you can select from a few options such as wipe, install, settings, backup etc. Navigate to install using the volume buttons and use power button to select it. On the next screen, choose ‘Install zip from sdcard’. Find the location where you have the ROM, and confirm the installation by swiping the button at the bottom of your screen.