Custom Rom - Vivo Y1s

Unlocking and flashing a custom ROM on the Vivo Y1s (MT6765 Helio P35)

is possible, though it requires specific third-party tools since Vivo does not officially support bootloader unlocking. ⚠️ Essential Warning Flashing a custom ROM voids your warranty

, and carries a risk of "bricking" (making the phone unusable). Always back up your data before proceeding. Step 1: Unlock the Bootloader vivo y1s custom rom

Standard Fastboot commands often fail on Vivo devices. Most users rely on the UnlockTool on a PC for the MTK chipset. Enable Developer Options Settings > About Phone Software Version seven times. Toggle Settings Settings > System > Developer Options OEM Unlocking USB Debugging Use UnlockTool : Connect your phone to a PC with MTK USB Drivers

installed. Use the tool to perform a "Bootloader Unlock" specifically for the Vivo Y1s model. Step 2: Install Custom Recovery (TWRP) Unlocking and flashing a custom ROM on the

A custom recovery is needed to flash ROM files. You can find unofficial builds of TWRP for Vivo Connect your phone in Fastboot Mode (Power + Volume Up). On your PC, open a command prompt and type: fastboot flash recovery twrp_filename.img Reboot into recovery immediately to verify installation. Step 3: Choose and Flash Your ROM LineageOS Downloads

All devices. Devices Changes OTA Verifier Flash Tools. Motorola. 6.1 PlusDRG. GT Neo6bale. Xperia 1 VIpdx245. Xperia 10 VIIpdx257. LineageOS Downloads Common Fixes

Common Fixes

  • Bootloop: Reboot to TWRP → restore Nandroid or flash a different ROM/kernel/vendor image.
  • No network/IMEI lost: Restore EFS backup; if none, community forums might help—do not experiment with EFS without guidance.
  • Camera not working / hardware issues: Try different kernels or vendor blobs; check ROM thread for device-specific patches.
  • SafetyNet fail: Use Magisk hide and modules (note: SafetyNet can change over time).

Why Install a Custom ROM on a Vivo Y1s?

By default, the Vivo Y1s runs on Funtouch OS 10 (based on Android 10). Vivo does not have a reputation for unlocking bootloaders or providing kernel source code quickly. Despite this, the developer community has found workarounds. Here is why you should consider it:

  1. Vanilla Android Experience: Replace Funtouch OS with AOSP (Android Open Source Project) based ROMs like LineageOS or Pixel Experience. This removes bloatware and gives you a clean, Google-centric UI.
  2. Performance Boost: Custom ROMs are lighter. On a device with only 2GB of RAM, removing background services from Vivo’s UI can free up significant memory, reducing lag and app crashes.
  3. Extended Software Support: While Vivo abandoned the Y1s after Android 10, custom ROMs offer Android 11, 12, or even 13 (GSI builds), granting access to newer privacy features and security patches.
  4. Customization: Root access (Magisk) combined with custom ROMs allows for themes, status bar tweaks, and kernel adjustments that are impossible on stock firmware.

Before you begin — checklist

  1. Backup everything: photos, messages, contacts, app data (use Google account, local backup apps, or ADB).
  2. Charge the battery to ≥60%.
  3. Unlock the bootloader (ensure you follow official/unlocker tools and note unlocking may wipe device).
  4. Install a custom recovery (TWRP or compatible) for flashing and backups.
  5. Download the ROM, compatible GApps (if needed), Magisk (for root), and vendor patches specific to Vivo Y1s or its chipset.
  6. Verify checksums (MD5/SHA) of downloaded files when provided.
  7. Read the ROM thread/instructions completely — note device-specific quirks and required firmware versions.

2. Pixel Experience

Do you envy the software on Google Pixel phones? Pixel Experience brings the Google Pixel launcher, icons, and camera features to your vivo Y1s.

  • Features: Google-style aesthetics, exclusive Pixel features like "Now Playing," and a smooth UI.
  • Best For: Users who love the look and feel of stock Android Google style.

First Boot & Post-Install

  • First boot may take 5–15 minutes. If stuck in bootloop after 30 minutes, reboot to recovery.
  • If bootloop occurs, try flashing vendor firmware or restoring backup.

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.

Flashing ROM

  1. Transfer ROM ZIP (and GApps, Magisk) to device.
  2. In TWRP: Install → select ROM ZIP → Swipe to confirm.
  3. Flash GApps immediately after if required (only for ARM/ARM64 and Android version matching ROM).
  4. Flash Magisk if you want root.
  5. Wipe Dalvik/ART Cache and reboot system.