I got a free Proscan tablet PLT-7050 I believe it is a rockchip. It comes semi-rooted. I got it to learn on. So I copied out the Boot.img put and for some stupid reason I changed ro.secure to one. I misread a post on here and did not realize it should be at 0. And of course I copied back to the unit and rebooted it.
Now the unit only boots to recovery. I have the original boot.img file. How can I copy it to my device? ADB works great but fastboot will not detect any devices.