To enable flash charging on a Huawei tablet, perform the following steps:
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Open the Settings for your Huawei tablet.
Click the battery option.
In battery Settings, slide the Power saving mode switch to the right to enable the fast charging function.
It should be noted that when using Huawei's super fast charge function, you need to use Huawei's original super fast charge data cable, which will have a 5A mark above it. Also, make sure the phone supports super fast charging and uses the original charging head and data cable. If the plug is not correct, the phone may not turn on the super fast charge, but display normal charging mode. When the tablet turns on the super fast charge, the charging symbol next to the battery will be displayed as three lightning connected symbols.