How to install TWRP or root device I'm trying to install TWRP but it says (boot image with correct signature or disable verified boot)

My device is (Umidigi power)

Or root my device
I have try with this:

UniversalAndroot
Framaroot
Magisk Manager
Magisk v20
KingoRoot


Can someone help me with this?

Note 24/1-2020 17:31

step 1: adb reboot bootloader
step 2: fastboot flashing unlock
step 3: Volume Up


Follow the guide here: https://forum.xda-developers.com/showpost.php?p=79819558&amp;postcount=8

SP_Flash_Tool for magisk_patched_boot.img in boot sector in SP_FLash_Tool

Install Magisk Manager V20.3 new version. and here we go. thanks for all imput :)
Follow these steps carefully (It's almost same for every android devices):


  
  Install ADB in your PC. Update the drivers of your device.
  Boot your phone into recovery mode. (Make sure you turned on USB Debugging and OEM from developer options).
  Open the ADB in your PC and check your phone is connected by USB or
  not. If it shows your phone in terminal then proceed further.
  Reboot into fastboot.
  Then unlock the bootloader (fastboot oem unlock).
  After unlocking the bootloader flash the TWRP recovery's img file (Be careful becuase TWRP recovery isn't same for every phone. You've
  to go tho their website and find your phone's. If it's not available
  in their website then don't worry you'll find it in unofficial
  websites).
  Now boot your phone into recovery mode. This will open TWRP recovery now.
  Now you should use ADB sideload method or use your phones internal or external memory to store magisk zip and flash it using TWRP.
  


You don't need to use KingoRoot to root. Magisk is an amazing tool to root any device.