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In MB61 project there is only one software. From following steps software update 
procedure can be seen:

1. MB61_en.bin, mboot.bin and usb_auto_update_T4.txt documents should copy directly 

inside of a flash memory(not in a folder).  

2. Put flash memory to the tv when tv is powered off. 
3. Power on the and wait when the tv is opened. 
4. If First Time Installition screen comes, it means software update procedure is 

succesful. 

Problem: If TV is working, led is normal and there is no picture and backlight on the panel.

Possible couses: Backlight pin, dimming pin, backlight supply, stby on/off pin 

Backlight pin should be high in open position. If it is low, please check Q41 and panel 
cables.

Dimming pin should be high or square wave in open position. If it is low, please check 
S111 for Mstar side and panel or power cables, 
connectors.

Backlight power supply should be in panel specs. 

STBY_ON/OFF should be low for standby on condition, please check R74.

Problem: CI is not working when CI module inserted. 

Possible couses: Supply, suply control pin, detect pins, mechanical positions of pins
CI supply shoul be 5V when CI module inserted. If it is not 5V please check LED3 or PIX2 
pin, this pin should be low.  

Please check mechanical positions of CI module.

Detect ports should be low. If it is not low please check CI connector pins, CI module pins 
and 3V3_VCC on MB61.