The Wiko Rainbow Jam 4G is a 2015 Android 5.1 smartphone powered by the Qualcomm MSM8909 Snapdragon 210 (28 nm) with 1GB and 8GB internal storage. It features a 5.0", IPS LCD, 720.0x1280.0 display and is available in Black, White, Bleen, Coral, Blue.

The Rainbow Jam 4G is equipped with a Li-Po 2500 mAh battery, a 8 MP, 720p@30fps main camera, a 5 MP front camera. The device uses a Dual SIM (Micro-SIM, dual stand-by) configuration. It weighs 153 g.

Clearing the cache partition on your Wiko Rainbow Jam 4G 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.