Feasibility of removing embedded SPYWARE from cellphone processor... ?

I have read about Intel ME and how it creates a remote backdoor at such a low level of operation that you could flash and change operating systems all day to no avail. However, without specific details, I have still heard of success in dealing with the problem.

I own a Unihertz Titan cellphone with a P70 MediaTek processor. I have read in multiple places that MediaTek processors and this phone specifically are compromised in terms of privacy, since "*spyware* …

cellphone embedded privacy processor spyware