The Sony Xperia C5 Ultra is a 2015 Android 5.0 smartphone powered by the Mediatek MT6752 (28 nm) with 2GB and 16GB internal storage. It features a 6.0", IPS LCD, 1080.0x1920.0 display and is available in Black, White, Mint.

The Xperia C5 Ultra is equipped with a Li-Ion 2930 mAh, non-removable, a 13 MP, 1080p@30fps, HDR main camera, a 13 MP, 1080p@30fps front camera. The device uses a Nano-SIM configuration. It weighs 187 g.

A bootloop on the Sony Xperia C5 Ultra 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.