Press and hold the Power and Volume down key wait 'til it restarts. If that fails try a safe boot.
Press and hold the power button and release it when you see the Huawei logo. on screen. Quickly press and hold the Volume down key, hold it till the phone reboots, If this works it means there's a problem with a recently installed app, remove it. You can also try clearing your cache once you have the screen available. This may not work, but it often does, holler if it doesn't.
Try a sort reset:
Press and hold the Power and Volume down key wait 'til it restarts. If that fails try a safe boot.
Press and hold the power button and release it when you see the Huawei logo. on screen. Quickly press and hold the Volume down key, hold it till the phone reboots, If this works it means there's a problem with a recently installed app, remove it. You can also try clearing your cache once you have the screen available. This may not work, but it often does, holler if it doesn't.