Ensure your phone has at least 70% battery to prevent sudden shutdowns during the process.
Implements the exact user interface, wallpapers, fonts, and animations found on Google Pixel devices. It offers maximum stability and includes Google Play Services out of the box. 2. LineageOS
: (Optional) Flash GApps if your chosen ROM doesn't include Google services.
Instead of a custom ROM, many users use ADB (Android Debug Bridge) to remove "Vivo V-Appstore," "iManager," and other pre-installed bloatware to improve performance. vivo y1s custom rom
: You will need to install a recovery tool like TWRP to flash the ROM files. High-Level Installation Steps
Use a MediaTek bootloader unlocking tool (like MTK Client) compatible with the Y1S to bypass and unlock the bootloader security. Step 2: Flash a Custom Recovery (TWRP or OrangeFox) Download the compatible TWRP recovery image for Vivo Y1S. Boot your phone into Fastboot mode.
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img Use code with caution. Wipe the existing system partition: fastboot erase system Use code with caution. Ensure your phone has at least 70% battery
Back up all data via Vivo’s support tools or a computer. Charge: Ensure battery is above 70%. Step-by-Step Installation Guide Phase 1: Unlocking the Bootloader
Some modders hoped for a MediaTek (MTK) exploit. The Y1S uses the . Historically, MTK devices had SP Flash Tool vulnerabilities that allowed bootloader bypasses. However, Vivo pairs its MTK chips with proprietary preloader handshakes. By 2020, most known exploits were patched. Attempts using mtkclient (an open-source tool) on the Y1S generally fail or risk a hard brick.
Rename your downloaded GSI file to system.img for convenience. Run this command to flash the software: fastboot flash system system.img Use code with caution. : You will need to install a recovery
A custom recovery replaces the stock recovery menu. It allows you to wipe system partitions and flash the zip files containing your new operating system.
: There are no widely recognized, stable "device-only" ROMs for the Y1s on major forums like XDA Developers .