problem after uploading Marlin 1.1.0-RC8

[margond]

Hi. After uploading the 1.1.0 RC8 firmware to my prusa i3 Pro B, I have "?" symbols on the LCD on the X,Y,Z position. Anyone knows what mistake I made in the Marlin firmware?
Thanks

[margond]

HI. Anyone can help me?
Thanks

[cosmith]

Have you tried a G28 home command?

[margond]

No, I flashed an older version of the firmware, but I wish to know what is wrong in the New version in order to Upgrade my marlin