@Handcannon So today I tried 3 different cables plus the one that it came with. And different laptop. Tried running on Chrome, Microsoft and Wave. Opened new M5burner account and Uiflow2.0 account. Different times of the day. Set my device to private Also tried it with AtomS3 and same results.

@ajb2k3 yes download just like video. Tried different cable and still the same. Will try a different computer today. I understand it is different and you need to put into boot mode. Then reset it. Really only way you can get it to download UIFLOW2.0. When I download and the load from UIFLOW2.0 the program will show a sync screen like the program is loading up again. If I look at device manger file it will show the loaded program and helloworld. Then I have loaded another one and then will have 3 programs in the device manger and can have them boot up. After a few times doing it the Core3 becomes unstable and locks up. Then just one program loads in loop every time I reset or turn off the device.

@Handcannon so I guess my next question is the Core3 and AtomS3 bad. Uiflow2.0 bad. Where do I send my Core and Atom to so they can be checked out. Or am I SOL. I need about 5 more Core3 and 7 or 8 more AtomS3 but if they are not going to function properly then will get something else.

@Handcannon Plus my AtomS3 does the same thing. Thought that it was just the but it only does one program at a time.

@Handcannon also I tried this morning and same thing.

@ajb2k3 thanks. I have erased and download different firmware about 20 times and still does the same thing. I hit reset button for 3 seconds it goes to com 5 and download the firmware. Then goes to com 7 in uiflow2. I have downloaded the demo firmware about 10 times and started all over but still same out come. Anyway to completely erase Core3 and start fresh. I have erased the firmware from M5 Burner 10 times or more still same thing. Thanks

@Handcannon well double checked my updates all are current. Went backwards on the firmware and no help. Did manage to get a few small files to load in yhe device file manager on the laptop. But very unstable. Load other firmware from M5Burner and it all seem to work great. Maybe got a bad Core3.

I have 4 Core2 and Sticks plus2 and Atom3. Just got the Core3. Installed UiFlow2.0 and when I run programs some seem fine others say "can not find device" other will run and download. But once downloaded will not go back to UIFlow2.0 main screen. Yes the configure page is set for main menu on reboot and Core3 setting in Uiflow2.0 is set to Main menu upon reboot. Any help would be much appreciated. Thanks in advance.