The Honor 400 Pro is a 2025 Android 15, up to 6 major Android upgrades, MagicOS 10 smartphone powered by the Qualcomm SM8650-AB Snapdragon 8 Gen 3 (4 nm) with 12GB and 256GB | 512GB internal storage. It features a 6.7", AMOLED, 1B colors, 120Hz, 3840Hz PWM, HDR Vivid, 5000 nits (peak), 1280.0x2800.0 display and is available in Midnight Black, Lunar Grey, Tidal Blue.

The 400 Pro is equipped with a Market-dependent versions: · Si/C Li-Ion 5300 mAh - Europe · Si/C Li-Ion 6000 mAh - ROW, a 200 MP, 4K, 1080p, gyro-EIS, OIS main camera, a 50 MP, 4K, 1080p, gyro-EIS front camera. The device uses a · Nano-SIM + Nano-SIM + eSIM (max 2 at a time) · Nano-SIM + eSIM configuration. It weighs 205 g.

A bootloop on the Honor 400 Pro 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.