Move photos, contacts, and documents to a cloud drive or an external computer.
Currently, there are no official builds from major ROM projects (LineageOS, Evolution X, etc.) for the Y1S. GSI Compatibility: Since the device launched with Android 10, it supports Project Treble
Custom ROMs replace your phone's stock operating system with a modified version of Android. For a budget device like the Vivo Y1S, custom ROMs offer several distinct advantages:
Android Enthusiast Hub Reading Time: ~8 minutes vivo y1s custom rom
Type yes to confirm (this step removes encryption and prevents bootloops). Go back to the main menu, select , and tap System .
: Based on LineageOS but adds a massive layer of extra customization options.
Press and hold the buttons simultaneously until the fastboot/recovery menu appears. Move photos, contacts, and documents to a cloud
Built on pure Android, LineageOS is incredibly lightweight. It offers a highly secure environment, an integrated update system, and focuses heavily on performance longevity. 3. ArrowOS
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
(Optional) If your ROM does not include Google apps, return to the Install menu, select the , and flash it immediately after the ROM. Step 5: Format Data and Reboot Go back to the main menu, select Wipe , and tap Format Data . For a budget device like the Vivo Y1S,
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Select the ROM file and swipe to confirm the flash. Wait for the process to complete successfully.