How to Install Custom ROM on Samsung Galaxy S20 FE 5G [GSI build]

In this tutorial, we will guide you to install the custom ROM on the Samsung Galaxy S20 FE 5G. The device came out of the box with Android 10 with One UI. If you want a vanilla-flavored custom ROM, then you can try the GSI build on your phone.

Well, If you are here, then you may probably want to install the Custom ROM on the Samsung Galaxy S20 FE 5G. As you read our title, yes we can guide you on installing the latest custom ROM on Samsung Galaxy S20 FE 5G based on GSI build.

How to Install Custom ROM on Samsung Galaxy S20 FE 5G [GSI build]

When you buy a new phone, it comes with so-called stock ROM or stock firmware which basically means a pre-installed operating system. This ROM usually comes with some limited functionality defined by the OEM (phone manufacturer). Whereas a custom ROM is developed by using AOSP also known as Android Open Source Project. Yes, we all know that Android is open-source and therefore any developer can edit the code, or recompile it according to his or her need. You can read our complete article to understand the difference between Custom ROM and Stock ROM.

Flashing the ROM in Samsung Galaxy S20 FE 5G is easy! All you need to do is follow the instructions carefully. If you are a newbie, then you need to understand that before flashing, you must unlock the bootloader on your Samsung Galaxy S20 FE 5G. To unlock the bootloader, follow our guide on how to unlock the bootloader on any Samsung device.

If you already unlocked the bootloader, then you can simply follow our guide to install the custom ROM on Samsung Galaxy S20 FE 5G. Before that, let’s understand What is a GSI build.

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Samsung Galaxy S20 FE 5G Device Overview:

Samsung Galaxy S20 FE 5G sports a 6.7-inches Super AMOLED display with 1080×2400 pixels resolution, a 20:9 aspect ratio, Always-on display, HDR support. Additionally, the display design looks like the Galaxy Note 10 with a pin-hole selfie camera on the upper middle portion of the display. It runs on Android 10 on top of One UI 2.0 skin. The device packs a 4,500mAh battery with fast charging support. It has a 32MP selfie camera (wide, f/2.2) with HDR mode.

The device is powered by the octa-core Qualcomm Snapdragon 855 SoC, paired with Adreno 640 GPU, 6GB/8GB of RAM, 128GB of internal storage option (expandable up to 1TB via a MicroSD card). Most importantly, the handset sports a triple rear camera setup that includes a 48MP (wide, f/2.0) + a 12MP (ultrawide, f/2.2) + a 5MP (dedicated macro camera, f/2.4) lens. It also supports PDAF, Super Steady OIS, HDR, Panorama, an LED flash, Gyro-EIS, etc.

While, there are all the major connectivity options like Wi-Fi 802.11 a/b/g/n/ac (dual-band), Bluetooth 5.0, GPS, A-GPS, GLONASS, USB Type-C port, etc. The handset also features an optical in-display fingerprint sensor, gyroscope, accelerometer, proximity, compass sensor, etc. It’s available in three color options like Prism White, Prism Black, and Prism Blue.

What is GSI Stands for?

GSI stands for Generic system image which is an Android System image that can be used to replace the current installed Android version with a new one. It is a pure Android with an unmodified Android Open Source Project (AOSP) code. With Android 8.1, Google introduced the project treble support for many devices and now with Android 9.0 Pie, Google finally added the API level 28 to support Generic System Images to all app developers to install and run the latest Android GSIs on a variety of existing Android devices. To know more: Read here

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How to Install Custom ROM on Samsung Galaxy S20 FE 5G

To install, as we said, you need to unlock the bootloader and must have a TWRP (to install via a  device) or a PC (to install via Fastboot). Yes, there are two methods to install the custom ROM GSI on Samsung Galaxy S20 FE 5G.

Disclaimer

AOSP GSIs which is still marked as a pre-release. Even on a device that runs Pie GSIs nicely, it’s still possible to get broken media, camera, RIL, or even flat-out no-boot. You are strongly advised to try PHH’s original and then identify/report issues there, before moving onto other GSIs that is based on his work. Please report bugs on the same thread related to the ROM.

We’re at GetDroidTips won’t be responsible for any kind of damage or error that occurs to your handset while or after following this guide. This is a Custom ROM and may contain some of the bugs or stability issues. We can’t recommend you to use this firmware as your daily driver. Proceed at your own risk.

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Pre-Requirements:

Note:

A only arS20 FE 5G – arm avN
A only arm64 – arm64 avN
A/B arm64 – arm64 bvN
A/B arS20 FE 5G – arm bvN

Download Links:

Install via TWRP Recovery:

This guide is for those users who have installed TWRP recovery on your device. If your device is not supported, you can try the next method to install the custom ROM via GSI build.

  1. To install via TWRP, you need to factory reset your device using TWRP
  2. Go into the Wipe option and Swipe to Factory Reset.
  3. Transfer the GSI build to your Samsung Galaxy S20 FE 5G using a USB Cable.
  4. Once you have moved, you can remove your USB cable.
  5. In your TWRP, tap on the install button –> Change type to Install Image and find the GSI you have moved in the 3rd step.
  6. Confirm the flash by choosing the system partition
  7. Once it is done, you can reboot your device and wait for a few minutes to boot up.

Flash via Fastboot

  1. First, do the factory reset on the Samsung Galaxy S20 FE 5G. There are two methods to do it, follow anyone.
    • Factory Reset When Powered On: To install without TWRP, you have to factory reset using your Umdigi A7 Pro factory reset option.
    • Factory Reset via Stock Recovery: Reboot your Samsung Galaxy S20 FE 5G into stock recovery using a button combination or ADB command.
      adb reboot recovery
    • In your Stock Recovery, navigate using the Volume UP and DOWN button.
  2. Make sure to extract the downloaded GSI build.
  3. After resetting the factory ROM, you can now boot your device into bootloader mode using the adb command adb reboot bootloader. bootloader mode
  4. Now open the extracted folder of GSI build, there, now open the command prompt window by holding the SHIFT KEY and Right Mouse click.
  5. In your command window, enter the command fastboot erase system
  6. To flash the system image, enter a command in the following format: fastboot -u flash system name_of_system.img
  7. Wait for the image to flash, it could take a few minutes. Once it has been completed, reboot your device either manually via power key or by entering fastboot reboot and wait for a few minutes to boot up.

We hope that this guide is helpful to you and you have successfully installed the Custom ROM on your Samsung Galaxy S20 FE 5G handset easily. If in case anything goes wrong or if you have any queries, feel free to ask in the comments below.

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Credits to all the developers from the XDA forum and 4PDA forum

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