Looks like the OS image on your tablet is likely corrupted then. Download the OS from the Acer support site (IIRC there are two, just pick the newest) and put it on an SD card, then put the SD in your tablet. Boot into recovery mode and have it reinstall the OS from the zip file. If that doesn't work then the onboard flash has failed and fix will require a motherboard swap. well i tried that and sometimes it starts installing but 2 min its aborted. Start to think its a battery prob
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