Can't tell if you have Intel or Broadcom wifi / BT since you have both enabled. My files are only for Broadcom, so you'll have to make some changes.
you also have I2C kexts enabled, this system doesn't have I2C touchpad, so not sure why you have them added unless it has an I2C touchscreen...
SSDT-E7470.aml includes all those SSDT* patches already, so you can remove the rest.
why would you enable SSDT-DisableNVMe.aml? I assume your hdd is SATA SSD? then you don't need NVMeFix.kext
why would you have both RealtekCardReader.kext and Sinetek-rtsx.kext enabled? they both does the same thing although RealtekCardReader.kext might be faster
try my OC 0.7.9 files
https://osxlatitude.com/forums/topic/9179-dell-latitude-e7x70-clover-and-opencore/?do=findComment&comment=104256