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How to Fix Black Screen — Honor 400 Pro
How to Fix Black Screen — Honor 400 Pro
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 black screen on the Honor 400 Pro can occur due to a drained battery, a software crash, or the screen becoming unresponsive. In most cases this can be resolved with a force restart or a short charging period without any data loss. Follow the steps below in order before considering a factory reset.
On your Honor 400 Pro: charge for 30+ minutes with a different cable and charger
Hold Power for 15–20 seconds
If still black: hold Power + Volume Down for 10 seconds
Try holding Power + Volume Up to enter Recovery Mode
In Recovery: select 'Reboot system now'
If Recovery loads: wipe cache partition then reboot
Last resort: factory reset from Recovery — erases all data
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