Hello, my umi touch hung up and now it does not leave the umi screen, I tried to do the recovery installing the official rom again, but the sp flash tool does not recognize the phone after connecting it in the usb
Are you using Windows 10 64 bit or which system?
Did you install correctly vcom driver?
Is you usb wire ok?
Please follow instruction from this thread http://community.umidigi.com/thread-5053-2-1.html