Problems after installing new firmware on MBot Grid II+, want original firmware

After Installing new firmware. I can’t get extruder temperature(replicatorg seems to be trying get the temperature of the table but it is not heated in this model), and can’t see anything on my LCD display(but i still can launch printing using buttons if guess combination). Can someone sand me original firmware for this model?

Fixed by installing firmware from here https://github.com/MBot3D/MBotFirmware/tree/master/Firmware%20for%20Grid2%2B/firmware7.7

The build process is documented on the wiki:
http://wiki.makerbot.com/v2-firmware

its not open page.
how i can load firmware?

http://firmware.mbot3d.cn/firmware.xml

are not work

The process where it will be going to get the particular where it is a process to build the documented where the problems occur after installing a new firmware that needs to get the process which will be reached by microsoft support chat and it will guide you in the best way.