My UK EE One M8 was unlocked, rooted and running a custom ROM. The CID is ORANG001.
I wanted to return it to stock so installed stock recovery and a stock ORANG001 nandroid, relocked the bootloader and returned to S-ON.
It all looks OK but when I start receivng the OTAs, I get this error.
We have determined that your phone may be running a modified version of it's system software.
What have I missed?