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how to remove back panel off of device
Here’s how to replace your battery: iPad 3 Wi-Fi Battery Replacement
Have you tried another charging cable and wall charger adapter first? If not those two are the most common for why the iPad 2-3 don’t charge.
You cannot remove the back panel of this device. The motherboard & battery etc. are stuck on the back panel. The front (glass) panel is removable. There is a guide on the site on how to do that.
