Unlocking the bootloader is the mandatory first step for any kind of system-level modification. For some Android brands (like Google or OnePlus), this is a relatively straightforward process. For Vivo, it is a major obstacle.
LineageOS is the gold standard for performance and stability. It strips away all corporate bloat to deliver a pure, high-performance Android environment that runs smoothly on 2GB or 3GB RAM variants. 2. Pixel Experience (GSI)
Users who want a clean, minimalist Google interface.
Head to the official Phhusson GSI GitHub repository or the XDA Developers GSI forum to download your preferred ROM image (e.g., LineageOS, Pixel Experience, or Evolution X GSI) matching your exact architecture. Step 4: Flashing the Custom ROM via Fastboot
Custom ROMs eliminate background bloatware, freeing up RAM and CPU cycles.
You likely flashed the wrong architecture or Android version of GApps. Ensure you download the arm64 version matching your exact ROM Android version.
The Vivo Y1s, a budget-friendly device released in late 2020
While Vivo devices are notoriously difficult to mod due to locked bootloaders, the
Go to and tap Build Number 7 times to unlock Developer Options.
Swipe to confirm the wipe. (Do not wipe Internal Storage or MicroSD card). Step 4: Flash the Custom ROM Return to the main menu and select . Navigate to your external microSD card storage.
The Vivo Y1s stock firmware is known by its model number, . It runs Android 10 with Vivo's own Funtouch OS 10.5 . These stock ROMs are your safety net. If an attempted modification fails and your phone enters a bootloop or gets stuck on the logo, you can often use flashing tools to reinstall the stock firmware and bring your phone back to a working state.
The MediaTek MT6765 chipset is notoriously difficult for custom development because MediaTek rarely releases complete kernel source code. This makes creating stable, hardware-optimized ROMs like Pixel Experience a significant challenge. Locked Ecosystem:
If you lose network, check your Access Point Names (APN) settings.
| Feature | Specification | | :--- | :--- | | | Released 2020, November 26 | | Dimensions & Weight | 155.1 x 75.1 x 8.3 mm, 161 g | | Display | 6.22-inch IPS LCD, 720 x 1520 pixels | | Operating System (at launch) | Android 10, Funtouch 10.5 | | Chipset (SoC) | Mediatek MT6765 Helio P35 (12 nm) | | CPU | Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | | GPU | PowerVR GE8320 | | Memory & Storage | 32GB eMMC 5.1 storage, 2GB or 3GB RAM | | Main Camera | 13 MP, f/2.2, PDAF | | Battery | 4030 mAh non-removable | | Model Number | PD2014F |
Vivo Y1s Custom Rom ((new)) Jun 2026
Unlocking the bootloader is the mandatory first step for any kind of system-level modification. For some Android brands (like Google or OnePlus), this is a relatively straightforward process. For Vivo, it is a major obstacle.
LineageOS is the gold standard for performance and stability. It strips away all corporate bloat to deliver a pure, high-performance Android environment that runs smoothly on 2GB or 3GB RAM variants. 2. Pixel Experience (GSI)
Users who want a clean, minimalist Google interface.
Head to the official Phhusson GSI GitHub repository or the XDA Developers GSI forum to download your preferred ROM image (e.g., LineageOS, Pixel Experience, or Evolution X GSI) matching your exact architecture. Step 4: Flashing the Custom ROM via Fastboot vivo y1s custom rom
Custom ROMs eliminate background bloatware, freeing up RAM and CPU cycles.
You likely flashed the wrong architecture or Android version of GApps. Ensure you download the arm64 version matching your exact ROM Android version.
The Vivo Y1s, a budget-friendly device released in late 2020 Unlocking the bootloader is the mandatory first step
While Vivo devices are notoriously difficult to mod due to locked bootloaders, the
Go to and tap Build Number 7 times to unlock Developer Options.
Swipe to confirm the wipe. (Do not wipe Internal Storage or MicroSD card). Step 4: Flash the Custom ROM Return to the main menu and select . Navigate to your external microSD card storage. LineageOS is the gold standard for performance and stability
The Vivo Y1s stock firmware is known by its model number, . It runs Android 10 with Vivo's own Funtouch OS 10.5 . These stock ROMs are your safety net. If an attempted modification fails and your phone enters a bootloop or gets stuck on the logo, you can often use flashing tools to reinstall the stock firmware and bring your phone back to a working state.
The MediaTek MT6765 chipset is notoriously difficult for custom development because MediaTek rarely releases complete kernel source code. This makes creating stable, hardware-optimized ROMs like Pixel Experience a significant challenge. Locked Ecosystem:
If you lose network, check your Access Point Names (APN) settings.
| Feature | Specification | | :--- | :--- | | | Released 2020, November 26 | | Dimensions & Weight | 155.1 x 75.1 x 8.3 mm, 161 g | | Display | 6.22-inch IPS LCD, 720 x 1520 pixels | | Operating System (at launch) | Android 10, Funtouch 10.5 | | Chipset (SoC) | Mediatek MT6765 Helio P35 (12 nm) | | CPU | Octa-core (4x2.35 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53) | | GPU | PowerVR GE8320 | | Memory & Storage | 32GB eMMC 5.1 storage, 2GB or 3GB RAM | | Main Camera | 13 MP, f/2.2, PDAF | | Battery | 4030 mAh non-removable | | Model Number | PD2014F |