Vertical coloured bars appear on the phone screen
Applicable products：
Tablet，Smartphone
Applicable system:
Magic UI 3.1.1, Magic UI 2.0.1, EMUI 9.1.1, EMUI 9.0.1, Magic UI 3.0, Magic UI 2.1, Magic UI 3.1, Magic UI 2.1.1, EMUI 10.1.1, EMUI 10.0.1, Magic UI 2.0, EMUI 11.0, EMUI 10.1, EMUI 10.0, EMUI 4.0, EMUI 8.0, EMUI 4.1, EMUI 5.0, EMUI 8.1, EMUI 5.1, EMUI 9.0, EMUI 9.1, EMUI 8.2, Magic UI 3.0.1
Applicable products：
Applicable system:
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| Vertical coloured bars appear on the phone screen |
Problem:
Coloured bars are displayed on the screen, as shown in the following figure.
Cause:
Profile GPU rendering may have been enabled in Developer options.
Solution:
Open Settings, search for and access Profile GPU rendering, then disable Profile GPU rendering.
If this is not the case or this issue occurs when Developer mode is not enabled, back up your data and take your phone and proof of purchase to an authorised Huawei Customer Service Centre for assistance.
Thanks for your feedback.