I have just upgraded by Ender 3D PRO from ver 4.2.2 to 4.2.7. Everything worked OK. Then added BL Touch today as shown on line. Upgraded to BL Touch firmware for ver 4.2.7 from Creality site. Board now shows Marlin 1.1.2.
Issues:

• Home goes to roughly middle of board.
• If I try to start bed leveling, head goes to max rhs, starts to check level, then tries to more even further right, which causes printer to vibrate as it tries to move further right.

Please help!