I have tried to install TWRP and LineageOS on my "lenovo Tab4 8 Plus" and it didn't go well. Now I have a broken device... no function, only connected with PC and its a Qualcomm Device in a Diagnosis Mode, or when I change the Driver its Qualcomm HS-USB Qloader 9008. How ever I change the driver or try all possible tools like MiFlash, QFil or Lenovo Rescue and Smart Assistant it doesn't all help and no flashing possible. Do guys have any Idea what could be wrong?
I thank you all.