The Lava Z91 is a 2018 Android 7.1 smartphone powered by the Mediatek MT6739 (28 nm) with 3GB and 32GB internal storage. It features a 5.7", IPS LCD, 720.0x1440.0 display and is available in Blue.

The Z91 is equipped with a Li-Po 3000 mAh, non-removable, a 1080p@30fps main camera, a 8 MP front camera. The device uses a Nano-SIM + Nano-SIM configuration. It weighs 147 g.

Clearing the cache partition on your Lava Z91 removes temporary system files that accumulate over time and can cause slowdowns, crashes or boot issues. Unlike a factory reset this process does not delete any personal data, photos, apps or settings, making it a safe first step when troubleshooting performance problems.

Clears temporary system files without deleting personal data.