My lg crashed and won't turned back on. I'm not sure if it's the hardware or software
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@Ayah13 What is the model number of your LG phone, did you install any new app before it crashed and if you plug it in to charge does it show it is charging?
Did you find a solution to this? Did @KAPABLE-K 's suggestion help? Don't be shy to share with the rest of us! Knowledge is power