Before you rush to download a file, installing a custom ROM on a vivo Y1s requires specific groundwork. Do not skip these steps:
If you own a Vivo Y1S and want a custom ROM, your realistic options are:
The Y1S is a reminder that not all budget phones are modder-friendly. Vivo prioritizes security and its own skin over user freedom. For enthusiasts, the Y1S is less a device and more a locked door with no key.
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Installing a custom ROM on the Vivo Y1s is currently extremely difficult or impossible for most users because Vivo does not officially allow bootloader unlocking. While "generic" guides exist, specific custom firmware builds (like LineageOS or Pixel Experience) are not officially maintained for this specific model. The State of Vivo Y1s Custom ROMs
Most developers have not released dedicated custom ROMs for the Vivo Y1s (model PD2014F) due to the restricted nature of Vivo’s Funtouch OS and the MediaTek MT6765/MT6771 chipset.
Bootloader Status: Vivo typically blocks bootloader unlocking on budget models like the Y1s to maintain system security. Without an unlocked bootloader, you cannot install a custom recovery (like TWRP) or a custom ROM. vivo y1s custom rom
GSI (Generic System Images): If you manage to unlock the bootloader using unofficial third-party tools (like UnlockTool), you might be able to flash a GSI ROM since the device supports Project Treble.
Available Firmware: Most "ROMs" found online for this device are actually Official Stock ROMs used for unbricking or fixing software issues, rather than custom performance-enhancing firmware. Risks and Warnings
Attempting to force a custom ROM onto a Vivo Y1s comes with significant risks:
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.
Why specifically for the Vivo Y1S?
Do you envy the software on Google Pixel phones? Pixel Experience brings the Google Pixel launcher, icons, and camera features to your vivo Y1s. Before you rush to download a file, installing
Unlike Xiaomi or OnePlus, Vivo does not officially support bootloader unlocking.
For most Vivo Y1s devices, the bootloader is locked, and no public method exists to unlock it.
→ Without unlocking the bootloader, you cannot flash any custom ROM (TWRP, GSI, LineageOS, etc.).
⚠️ If your Y1s is bootloader-unlockable (rare, maybe demo units or certain regions), you can proceed.
Assuming you have an unlocked bootloader and MTKclient ready.
Step 1: Prepare the GSI
Download the .img.xz file of your chosen ROM. Extract it to get a system.img file (usually 1.5GB - 2GB).
Step 2: Boot to Fastboot Turn off the Vivo Y1s. Press Volume Down + Power until you see the Fastboot logo.
Step 3: Wipe Partitions Connect to PC. Open Command Prompt. If you own a Vivo Y1S and want
fastboot erase system
fastboot erase userdata
fastboot erase cache
Step 4: Flash the GSI
fastboot flash system system.img
Step 5: Reboot and Wait
fastboot -w
fastboot reboot
First boot takes 5–10 minutes. Do not interrupt it.
Is your vivo Y1s starting to feel a bit sluggish? Are you tired of the heavy Funtouch OS interface or stuck on an older version of Android? You aren’t alone. While the vivo Y1s is a solid budget device, its software experience can leave power users wanting more.
The solution? Installing a Custom ROM.
In this guide, we will explore the best custom ROMs available for the vivo Y1s, the benefits of installing them, and a brief overview of how to get started.
Custom ROM for Vivo Y1s — Guide, Recommended ROMs, and Installation Steps