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The JXD S7800B is a tablet/game console that runs on an Android operating system and has built-in controls.

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My tablet isn't charging anymore

My tablet isn't charging. The cord plugs in fine. Nothing has loosened up or broken. It just doesn't charge.

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Hi @billcornwell,

Have you checked that there's 5V DC at the cable plug of the charger?

Can you try a different, known working, compatible 5V DC charger and check if the tablet charges?

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Yes, I've tried another 5v dc charger, another cord. My tablet's still not charging up

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Hi @billcornwell

If the tablet isn't indicating that the charger is connected you may have to open it up and check if the DC-In jack is OK or not, i.e. ensure that there's power getting from the input of the jack to the output connected to the board.

Sometimes with these types of connectors the inner connector breaks internally and this opens the +ve leg of the power supply. The jack cannot be repaired, it has to be replaced.

If the tablet is indicating that the charger is connected but the battery is not charging it may be a faulty battery.

Here are a couple of videos that may help.

JXD 7800B disassembly

JXD 7800B battery replacement

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