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Unfortunately I found this thread after I performed the update on my PB740-2...I can't figure out how to downgrade...found that I can try and install update again (power + left and right) but that fails the same way. I've tried connecting to a computer (and Android phone) but it seems like the device is waiting on approval to give control to another device.
Any ideas on how to downgrade or factory reset without being able to touch the screen?
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