Root help with Acer Iconia A1-810

Hello there! Today I tried to root my tablet, but I couldnt. And by saying this, I mean that i tried almost everything i could find, from many one click apps and PC programs to Acer Iconia Toolkit. Also I have tried manual rooting, with first unlocking the booter, and then installing SuperSU.Update from CWM, but it gave an error. Some of the app programs said that the device is successfully rooted, but Check Root didnt. The toolkit gives me 'couldnt connect' error and suggesting I turn on usb debbuging, although I had it on. I tried with TWRP, but the device is not supported. The only thing i found but dont wanna try is all data clear, go back to 4.2 version, root, disable root, upgrade, enable root. But i loose my data in the process. I have been on this for like 5-6 hours already and cant figure it out. Can anyone help me? I would be really gratefull if so.

Device: Acer Iconia A1-810 with Android 4.4.2 KitKat.

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