What should I do if a game's controls misalign after enabling full-screen mode?

Go back to Open the settings ➔ Tap on Display & brightness ➔ Tap on More display settings ➔ Tap on Full-Screen Display and switch the toggle for that app off again. The game returns to its original, unstretched layout.

Does enabling full-screen display increase battery drain?

No. The setting only changes how the app's layout scales across the panel, it does not increase processing load or screen brightness on its own.

Can I force full-screen mode on an app that EMUI never flagged?

No. Tap on Full-Screen Display only manages apps that EMUI has already identified as unoptimized. Apps not listed there are handled automatically and offer no manual toggle.

Huawei

Huawei: Enable Full-Screen Display for Individual Apps

Some apps on your Huawei phone still show a small black bar or don't stretch across the whole screen. EMUI flags these apps as not optimized for full-screen mode, but you can still force the setting yourself for each one. Skip an app and it stays letterboxed no matter how often you restart it.

Updated: 04.08.20264 min5 steps

VersionAndroid 10 · EMUI

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Huawei

Enable Full-Screen Display for Apps auf Huawei

Huawei phones use a taller screen ratio than many older apps were designed for. When an app's layout was built for a 16:9 screen, EMUI cannot stretch it across the full display without risking distorted buttons or overlapping menus. Instead of forcing a broken layout automatically, EMUI lists these apps as not optimized and leaves the decision to you.

The control for this sits under Open the settings ➔ Tap on Display & brightness ➔ Tap on More display settings ➔ Tap on Full-Screen Display. This screen lists every app EMUI has flagged, each with its own toggle. Switching an app on removes the black bars top and bottom, but some interface elements can shift position once the layout stretches.

Test the app right after switching it on. If buttons get cut off, text overlaps, or a game's touch zones no longer match what you see, go back to Tap on Full-Screen Display and turn that app off again. Full-screen mode only changes how content fills the display - it does not fix crashes, lag, or missing features inside the app itself.

Frequently asked questions

EMUI only adds apps to Tap on Full-Screen Display once it detects they were not built for the current screen ratio. If an app is missing, it is likely already running in full screen and needs no adjustment.

Compatible devices

Tap your device — opens its hub with matching guides.

Android 10 · EMUI

Huawei Mate 30 Pro Huawei Mate 8 Huawei Mate Xs Huawei MatePad Pro 5G Huawei MediaPad T1 8.0 Huawei nova 8 Huawei P30 Huawei P40 Huawei P40 4G Huawei P40 lite Huawei P40 Lite E Huawei P40 Pro Huawei Y5 Huawei Y5p Huawei Y6 Huawei Y6p Huawei Y6s

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Huawei: Enable Full-Screen Display for Individual Apps

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Enable Full-Screen Display for Apps auf Huawei

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