Vivo Y1s Custom Rom [best] May 2026

Title

Custom ROM for Vivo Y1s — Guide, Recommended ROMs, and Installation Steps

4. ArrowOS (Android 11)

• Stability: Very High
• Best for: Users who want absolute speed. Android 11 is lighter than 12/13 on the P35 chipset.
• Hardware support: Headphone jack, WiFi, and Bluetooth work out of the box. Camera might need a third-party app (Open Camera).

3. Requirements Before Flashing

• Unlocked bootloader (if possible)
• Custom recovery (TWRP for MT6765 – ported from similar device like Redmi 9)
• Backup of stock ROM (especially persist, nvram, protect_f/protect_s)
• PC with SP Flash Tool + MTK USB drivers

Step 2: Flash TWRP Recovery

1. Download the TWRP image (.img file) specific to Vivo Y1S.
2. Use SP Flash Tool or fastboot flash recovery twrp.img.
3. Immediately after flashing, boot into recovery: Power + Volume Up.

Important Pre-Requisites

Before you rush to download a file, installing a custom ROM on a vivo Y1s requires specific groundwork. Do not skip these steps: vivo y1s custom rom

1. Unlock the Bootloader: vivo devices come with locked bootloaders. You must visit the vivo official website, apply for permission to unlock, and use their tool to unlock it. Note: This will wipe your data.
2. Install a Custom Recovery: You need a custom recovery like TWRP (Team Win Recovery Project) specifically ported for the Y1s to flash the ROM files.
3. Backup Your Data: This process will wipe your phone completely. Backup photos, contacts, and files to an external drive or cloud service.
4. Charge Your Phone: Ensure your battery is above 50% to prevent the device from shutting down during the process.

1. LineageOS 18.1 (Android 11) – The Gold Standard

• Stability: 9/10
• Best for: Users who want a clean, AOSP experience with no frills.
• Features: Signature LineageOS privacy guard, system-wide dark theme, and excellent battery life.
• Known bugs: FM Radio doesn’t work; VoLTE needs manual APN setup.

Troubleshooting Checklist

• Confirm correct device codename in ROM thread.
• Use compatible GApps (Pico vs. Stock) for ROM Android version.
• If TWRP not installing permanently, lock/unlock and reflash proper recovery for vendor A/B partitions.
• If unable to unlock bootloader: follow Vivo's official unlocking or community-unlock methods specific to your region.

2. If Unlocked – What Works?

The Y1s uses a Project Treble compatible partition layout (A-only).
This means GSIs (Generic System Images) are your best bet. Title Custom ROM for Vivo Y1s — Guide,