Reverse Charge with an OTG Cable
Applicable products： HONOR 20(dual sim card 6gb+128gb)，HUAWEI Mate Xs(dual sim card 8gb+512gb)，HUAWEI Mate 20 X(dual sim card 6gb+128gb)，HUAWEI nova 7(dual card 8gb+256gb)，HUAWEI P30(single sim card 6gb+128gb、dual sim card 6gb+128gb、dual sim card 8gb+128gb)，HONOR 20 PRO(dual sim card 8gb+256gb)，HUAWEI P30 Pro(single sim card 8gb+256gb、dual sim card 8gb+512gb、single sim card 6gb+128gb、dual sim card 6gb+128gb、dual sim card 8gb+256gb、single sim card 8gb+128gb、dual sim card 8gb+128gb)，HUAWEI Mate 20 Pro(dual sim card 6gb+128gb、single sim card 6gb+128gb)，PORSCHE DESIGN HUAWEI Mate 30 RS，HUAWEI Mate 30(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，Honor View 20(dual sim card 6gb+128gb、dual sim card 8gb+256gb)，HUAWEI Mate 20(single sim card 6gb+128gb、dual sim card 6gb+128gb)，HUAWEI Mate 30 Pro 5G(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 30 Pro(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 40 Pro(single sim card 8gb+256gb、dual sim card 8gb+256gb)，HUAWEI nova 5T(dual sim card 6gb+256gb、dual sim card 6gb+128gb、single sim card 6gb+128gb、single sim card 6gb+256gb)，HUAWEI Mate 20 X (5G)(dual sim card 8gb+256gb)，HUAWEI P40(single sim card 8gb+128gb、dual sim card 8gb+128gb)，HUAWEI P40 Pro+(dual sim card 8gb+512gb)，HUAWEI P40 Pro(single sim card 8gb+256gb、dual sim card 8gb+256gb)
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Reverse Charge with an OTG Cable

On-The-Go (OTG) is a USB transmission technology that allows a phone to directly access files on a USB flash drive or digital camera, or connect to an external device such as a keyboard or mouse, with the help of an OTG cable.

You can use your phone to charge other devices using an OTG cable.

  1. Connect your phone with the device to be charged using an OTG cable.

  2. Swipe down from the status bar to open the notification panel, touch Touch for more options, and select Reverse charge.

  3. Follow the onscreen instructions on the device to be charged to start charging.

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