Cables are fine. Drivers are fine. Phone connects to PC and can explore the internal and external storage.
Phone is rooted and is not bricked. Phone only has stock recovery, so not sure if rom or kernals can be flashed that way.
Can Stock Recovery "apply update from sdcard" be used to flash correct kernal, unroot to stock using HOME_SPH-D710_CL852097_user.tar.md5, or re-root using SPH-D710.EL29_CL852097_ROOTED-OneClick.exe can be flashed?
If not, how else can this be fixed?