For the brave ones: unlock that bootloader, flash TWRP, and let your Vivo Y1S run the OS it was always meant to run.
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
A: XDA Developers forum (search "Vivo Y1S ROMs"), Telegram channel "Vivo Y1S Updates", or 4PDA (Russian forum with English sections). Conclusion: Should You Flash a Vivo Y1S Custom ROM in 2025? The short answer: Yes, if you are a tinkerer who values speed over camera quality. For the brave ones: unlock that bootloader, flash
The Vivo Y1S was never a flagship, but Vivo’s software held it back more than the hardware did. A custom ROM like or ArrowOS removes the bloatware, stops the background app killing, and gives you a modern Android interface. Make sure you have a full backup of your NVRAM
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 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. A custom ROM is a third-party, aftermarket firmware built from the Android Open Source Project (AOSP). Think of it as reinstalling Windows on a PC, but for your phone.
Published by: Android Enthusiast Hub Reading Time: ~8 minutes Introduction: Why the Vivo Y1S Needs a Custom ROM 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.