The vivo Y1s is a 2020 Android 10, Funtouch 10.5 smartphone powered by the Mediatek MT6765 Helio P35 (12 nm) with 2GB | 3GB and 32GB internal storage. It features a 6.2", IPS LCD, 720.0x1520.0 display and is available in Aurora Blue, Olive Black.

The Y1s is equipped with a Li-Ion 4030 mAh, a 13 MP, 1080p@30fps main camera, a 5 MP front camera. The device uses a Nano-SIM + Nano-SIM configuration. It weighs 161 g.

A bootloop on the vivo Y1s occurs when the device repeatedly restarts without fully loading Android. This is commonly caused by a failed software update, corrupted system files, or an incompatible app. Most bootloops can be resolved without losing data by clearing the cache partition first before attempting a factory reset.

Factory reset may be needed as a last resort — erases all data.