Vivo 1801 Custom Rom Full <ORIGINAL × 2026>
Notes:
Let’s be honest. The Vivo 1801 (which covers the Vivo Y91 and Y91i) is a solid budget warrior from 2018. It has a decent 6.22-inch display, a reliable 4030mAh battery, and the MediaTek Helio P22 chipset. But if you are reading this, you are probably fed up with Vivo’s Funtouch OS.
The stock ROM is heavy, slow, and packed with bloatware. While your hardware is still capable, the software holds it back. You experience lag, slow app opening times, and that ugly UI from Android 8.1 (Oreo) that never received a proper update.
The solution? A Custom ROM.
Elian sat back, the blue light of the screen illuminating his satisfied face. The vivo 1801 was no longer a budget phone on its last legs. It was a capable, clean, efficient device.
It was a machine liberated from its manufacturer’s constraints. The amber notification light didn't pulse anymore; the phone wasn't struggling. It was waiting.
He picked up the phone, opened the browser, and typed a new search query, just for fun.
"How to enable Gesture Navigation on Android 11."
The vivo 1801 lived on.
Is a "Full Custom ROM" available? No. You cannot flash a stable, bug-free version of Android 12 or 13 on this device.
What is the best option for the user?
Disclaimer: Flashing custom firmware voids your warranty and carries the risk of permanently bricking your device. Proceed at your own risk.
(commonly known as the ) is a budget-friendly device released in 2018 with a 6.0-inch FullView display and a Snapdragon 425 processor. Finding a "full" custom ROM review for this specific model reveals that while unofficial options exist, the device is notoriously difficult to modify due to Vivo's restrictive bootloader policies. The "Full" Custom ROM Experience
Since official support for the Vivo Y71 ended at Android 8.1 Oreo, custom ROMs are the only way to experience newer Android versions. vivo Y71 - Full phone specifications - GSMArena.com
Reviewing a custom ROM for the Vivo 1801 (Vivo Y71) Go to product viewer dialog for this item. vivo 1801 custom rom full
requires understanding both the device's technical limitations and the community support available. As a budget device powered by the Qualcomm Snapdragon 425 Go to product viewer dialog for this item. faces significant hurdles for custom software. The Custom ROM Experience on
Installing a "full" custom ROM on this device is largely a community-driven effort, as Vivo officially does not recommend flashing third-party firmware or obtaining root permissions. 10 Best Custom ROMs for Android You Can Install - Beebom
(commonly known as the Go to product viewer dialog for this item.
) is a popular candidate for custom ROM installations to bypass Vivo's restrictive FunTouch OS. By installing a custom ROM, users can enjoy a cleaner, Stock Android-like experience and potentially newer versions of Android than those officially supported. Getting Started: The Essentials
Before you begin, you must fulfill three critical prerequisites:
Unlock the Bootloader: This is the most difficult step for Vivo devices, as the manufacturer often locks it for security. You may need to use specific third-party tools or scripts found on communities like XDA-Developers.
Install a Custom Recovery: You will need a tool like TWRP (Team Win Recovery Project) or OrangeFox Recovery to "flash" (install) the new system files.
Backup Your Data: Flashing a ROM will completely erase your internal storage. Ensure you have backed up all photos and documents. Top Custom ROMs for )
While official support varies, these ROMs are frequently ported to the
How to Install a Custom ROM on Your Vivo 1801 (Vivo Y71/Y71i) If you're looking to breathe new life into your , also known as the
, installing a custom ROM is one of the best ways to do it. This device, powered by the Qualcomm Snapdragon 425
chipset, typically runs Funtouch OS based on Android 8.1. By moving to a custom ROM, you can eliminate bloatware, improve performance, and potentially access newer Android versions like Android 11 or 12. Why Consider a Custom ROM for Your Vivo 1801? Remove Bloatware : Get rid of pre-installed apps that slow down your system. Performance Boost
: Custom kernels and optimized code can make a budget device feel much snappier. Updated Security
: Access more recent security patches that the manufacturer may no longer provide. Customization Optional: If ROM requires vendor partition updates, flash
: Change every aspect of your UI, from fonts to system animations. Step 1: Pre-Installation Checklist Before you begin, ensure you have the following ready: Are custom Android ROMs dead in 2026? - Surfshark
The Go to product viewer dialog for this item. (commonly known as the Go to product viewer dialog for this item.
) is a device that poses significant challenges for custom ROM installation due to its MediaTek chipset and Vivo's restrictive bootloader policies.
Because Vivo does not officially support bootloader unlocking for most older Y-series models, "official" custom ROMs (like LineageOS or Pixel Experience) are rarely available specifically for this model. However, you can often use Generic System Images (GSIs) if your device supports Project Treble. Prerequisites & Risk Warning
Unlocked Bootloader: This is mandatory. Without an unlocked bootloader, you cannot flash custom partitions.
Backup: Flashing will wipe all internal data. Ensure you have a full backup.
Risk: If the process fails, you risk "bricking" the device, making it unusable. Battery: Ensure at least 60% charge before starting. Step-by-Step Installation Guide 1. Unlock the Bootloader
Enable Developer Options by tapping "Build Number" 7 times in Settings > About Phone. Enable OEM Unlocking and USB Debugging.
Note: Since Vivo does not provide official unlock codes, you may need third-party tools (like MTK Client) to force an unlock on the MediaTek 1801. 2. Verify Project Treble Support Go to product viewer dialog for this item. models launched with Android 8.1 and may support Treble.
Download the Treble Info app to check if your device can run a GSI.
Note the architecture (usually ARM64) and the partition type (A-only or A/B). 3. Download a GSI ROM
If no device-specific ROM exists on XDA Developers, download a compatible GSI from a repository like GitHub's Project Treble page. 4. Flash the ROM (Using Fastboot)
Finding a "full paper" or academic study specifically on custom ROMs for the Vivo 1801 (Vivo Y71)
is difficult because this model is a budget-tier device from 2018, and such technical documentation usually exists in developer forums rather than academic journals. Notes: Let’s be honest
However, based on technical data from the developer community and official support, here is the current state of custom ROM development for this device: Device Context (Vivo 1801 / Y71) April 2018 [7]. Qualcomm Snapdragon 425 (MSM8917). Original OS: Funtouch OS based on Android 8.1 Oreo [8]. The "Custom ROM" Challenge for Vivo
Vivo devices are historically difficult to modify because the manufacturer rarely allows bootloader unlocking
[3]. Without an unlocked bootloader, you cannot install custom recoveries like TWRP or flash third-party ROMs like LineageOS. Known Technical Status Limited Development
: Because of the locked bootloader, there is no official "full" paper or repository for ROMs like LineageOS or Pixel Experience specifically for the Vivo 1801. Firmware Updates
: Vivo provides official firmware packages for "Local Upgrade" if you can still access the system settings [2]. This is generally used to fix bugs or restore the device rather than "customizing" it. Project Treble
: Since the device launched with Android 8.1, it theoretically supports Project Treble
[4]. If you manage to unlock the bootloader through unofficial exploits, you might be able to flash a Generic System Image (GSI). Where to Find Real-Time Updates
If you are looking for the "paper trail" of development for this specific model, you should check these communities where independent developers post their findings: XDA Forums : Search specifically for the Vivo Y71 forum : Search for
to see if any developers have uploaded device trees or kernel sources.
Title: Breathing New Life into the Vivo 1801 (Y91/Y91i): The Ultimate Custom ROM Guide
Published on: April 12, 2026 Category: Android Modding
No article would be complete without honesty. Custom ROMs are not for everyone.
Vivo does not officially provide bootloader unlock codes. For the 1801, you need to use a combination of:
Warning: Unlocking the bootloader on Vivo devices voids your warranty (if any remains) and wipes all data.
The vivo 1801 (commercially known as the vivo Y91 or Y93 depending on the region) has extremely limited support for full custom ROMs. Unlike devices from brands like Xiaomi or Google, vivo devices utilize a locked bootloader system with proprietary tools, making the installation of standard Custom ROMs (like LineageOS or Pixel Experience) difficult or impossible for the average user.
There is no widely available, stable "Full" Custom ROM (such as mainstream Android 10/11/12 builds) for this specific model. Most development for this device is restricted to "Port ROMs" or modified stock firmware.
