Vivo Y1s Custom Rom -

Boot recovery, perform a full Nandroid backup (important fallback).

Factory reset / Wipe: Dalvik/ART cache, cache, data, and system (follow ROM instructions).

Flash ROM ZIP, then flash any required vendor/fix ZIPs.

Flash GApps (if ROM does not include Google services) and Magisk (optional).

Reboot system — first boot may take several minutes.

After booting into your new custom ROM, you might encounter issues:

Q1: Will installing a custom ROM increase gaming performance on Vivo Y1S?
A: Slightly. Games like PUBG Mobile Lite or Call of Duty: Mobile will run at stable 30 FPS, but the hardware is the limit (PowerVR GE8320 GPU). Do not expect miracles.

Q2: Can I go back to stock FunTouch OS?
A: Yes. Download the stock firmware (.pac or scatter format) and flash it using SP Flash Tool. Make sure you have a full backup of your NVRAM. vivo y1s custom rom

Q3: Which is the most stable Vivo Y1S custom ROM for daily use?
A: LineageOS 18.1 (Android 11) remains the most bug-free. Pixel Experience 12 is a close second.

Q4: Does custom ROM support dual SIM on Vivo Y1S?
A: Yes, dual SIM works on all the ROMs listed above. Only VoLTE is inconsistent. Boot recovery, perform a full Nandroid backup (important

Q5: Where can I find the latest builds?
A: XDA Developers forum (search "Vivo Y1S ROMs"), Telegram channel "Vivo Y1S Updates", or 4PDA (Russian forum with English sections).

The Vivo Y1S, launched in early 2020, was designed as an entry-level smartphone for the masses. With its MediaTek Helio P35 (MT6765) chipset, 2GB of RAM, and 32GB of storage, it handles basic calls, WhatsApp, and light browsing reasonably well—on paper. However, as years pass, the stock FunTouch OS (based on Android 10 Go edition) begins to show its age. After booting into your new custom ROM, you

Users report severe lag, aggressive RAM management that kills background apps, and a complete halt to official OS updates. This is where the concept of a Vivo Y1S custom ROM becomes a lifesaver. By replacing the stock firmware with a custom-built Android distribution, you can transform this budget device into a snappy, bloatware-free, and modern smartphone.

In this article, we will explore everything you need to know: the best custom ROMs available, step-by-step installation guides, risks, benefits, and post-installation tweaks.

Published by: Android Enthusiast Hub
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