The NIU Niutek 4.0D is a 2013 Android 4.2 smartphone powered by the Mediatek MT6572 (28 nm) with 256MB and 512MB internal storage. It features a 4.0", TFT, 256K colors, 480.0x800.0 display and is available in Black, Blue, Green, White, Yellow.

The Niutek 4.0D is equipped with a Li-Ion 1500 mAh, removable, a 15 MP, 720p@30fps main camera, a 3 MP front camera. The device uses a Dual SIM (Mini-SIM) configuration. It weighs 131 g.

Clearing the cache partition on your NIU Niutek 4.0D 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.