How to Install Custom Rom on Android without PC [2022]

There is now a trend among Android users to install custom ROMs on their smartphones. Today, I’ll show you exactly how to Install Custom ROM on Android without PC. It allows you to customize the theme, UI/UX, Icons, Notification Panels and way more things as compared to the stock ROM.

Installing a custom ROM can be done in simple steps. But first you have to be familiar with some things like Bootloader, Unlocking Bootloader, Rooting, Ways of Installing Custom Rom and the Advantages and Disadvantages of Installing Custom ROM. Let’s dive further.

What is Custom Rom?

In simple words, Custom Rom means installing an Android OS on your phone that is compatible with your device with the purpose of enabling heavy customization. It can be done by flashing the device and storing a Custom ROM (OS) on the SD card then installing it using TWRP Recovery.

Because Android OS are open source, those with in-depth knowledge of the languages can modify the OS and customize it to their preferences to make it more attractive.

There are some insanely great custom ROM available on the market, such as Lineage OS, Havoc OS, and Pixel Extended OS.

How to Install Custom ROM on Android without PC

Let’s talk about the step-by-step process for Installing Custom ROM on Android without a PC or Computer. It’s a straight forward and clean guide with the core focus on helping you understand the process of installing a custom ROM on Android.

First note that in order to install custom ROM, Your device battery should have above 70% Battery, Zip File of TWRP Recovery on SD Card, Rooting apps like KingRoot or Magisk, Zip File of Custom ROM that you wanted to install and ZIP files of Google Apps (Gapps) that is compatible with your version of custom ROM (OS).

Step#1: Backup your Data

The first step is to take a complete backup of data because in the process you will end up losing your entire data so it’s essential that you should have a complete backup of your data.

You can take a backup of data either by transferring data to another device or by using TWRP recovery to take a complete backup. 

Step#2: Root your Device

Now, the second step is to root your phone. In this step, you can either use Magisk or Kingroot Android apps to root your device. Apps like Kingroot will automatically root your device with one click and that’s an easy way of rooting.

You don’t have to understand the technical stuff like Opening Developer Options, Unlocking OEM and Unlocking the Bootloader if you are using such apps. But if you don’t want to use such apps and root the device thoroughly, you will have to unlock  OEM and the Bootloader. Now you have rooted your device.

Step#3: Install TWRP Recovery

Installing TWRP recovery is the most important aspect of installing custom roms. The most efficient way to install custom ROMs is through this method. You can install it from the Play Store or from Google.

An effective way for installing TWRP recovery is to download the ZIP file of TWRP recovery onto the SD card and then you can use it in the Recovery Mode of your device.

Step#4: Create a Backup of your Phone

This step involves talking a Backup of the whole phone including System OS, Boot files, Modem and Data Files. Now, boot into Recovery mode and open TWRP Recovery. There you can find the third option of Backup. Click on it and create a Backup of your phone.

Step#5: Wipe your device

In simple words, wiping your Android device means to completely erase or remove all the data files on the device excluding the OS files. After wiping, your device’s settings is set to the default built in settings that the manufacturer has put into the device when it’s being manufactured.

Step#6: Flash Custom ROM

Finally, it’s time for flashing Custom ROM into the device. You have to save the custom ROM on the SD card. Now, insert the SD card that has ROM in it. Go to TWRP Recovery and click on Install. Select the custom ROM File there and boom you’re good to go.

Step#7: Flash Google Apps

Many Custom ROMs do not come with Google apps by default since some come with Gapps. After installing TWRP Recovery and flashing the custom ROM, flash the Gapps Zip file as well. Yep, now the steps are becoming very easy because you are understanding them quickly.

Step#8: Wipe Cache and Dalvik Cache

Now go to TWRP Recovery, Click on Wipe, now click on Wipe Cache and Dalvik Cache. Once it’s done you are good to go.

Step#9: Reboot the Device

Once you’ve completed each and every step correctly. I’m glad that now you are able to flash any Custom ROM on your Android device. It’s kinda fun having an Android phone and then completely customizing it according to your taste.

If anything had gone wrong with the Custom ROM, use the Backup that we’ve created in the Step 4 to restore everything to it’s previous condition and try some other ROM.

It’s possible 95% of the time because most custom ROMs have no installation errors. But if any error occurs, don’t worry it’s part of this process. You can use the Backup or try using a different ROM.

Benifits of Installing Custom Roms

  • The biggest benefit of installing a custom ROM is that it lets you customize your phone the way you want it to be. There are huge customizations that can be made just by using a custom rom. It gives your mobile phone a minimalistic theme with cool icon pacs and colors.
  • Another big benefit of installing a custom ROM is better Battery Life. When you install a custom rom you get rid of a lot of stock apps in any OS. For example, in Samsung’s phone you see Samsung Health, YT Music, MS Office, Samsung Members and Samsung’s Global Goals. Same goes for Infinix, Techno, and Xiomi. These apps constantly consume your battery and as a result you won’t get faster speed. As soon as you install a Custom ROM like Lineage OS you’ll see a huge difference in Battery timings.
  • Performance is also a biggest advantange of installing a custom ROM. You’ll see a massive change in the performance of your phone, which is another reason why you should install a Custom ROM.

Are Custom Roms Safe?

People often wonder about the date security and safety measurements of Custom Roms. Well, Custom ROMs are highly secured. There are big Custom ROMs out there such as Havoc, Lineage, and Cr Driod.

These are super secure and have built trust in the market. Today, Lineage OS is the #1 custom ROM (OS) on the market, due to its popularity.

Should you Install Custom ROM

It depends upon what type of person you are. If you are a tech geek then you should definitely try them once. If you are someone who doesn’t have proper knowledge of technical stuff like rooting, flashing, unlocking the bootloader and OEM unlocking then we should use the Stock ROM and you don’t have to try it once because there are chances that you end up completely bricking your phone so I don’t suggest you to do it by yourself.

I hope this helps and everything works well. If you have any questions regarding this blog. The comment section is for you. Feel free to comment on your query and I’ve be more than happy to answer your query.


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