Main Board Number 

JUC7.820.00243914

Model 55UHD ,

Classpro Model EGS55UHD

Matching Firmware With

Same Remote Working 

Problem Solution: LED TV Stuck On Main Logo

LED TV Freez and Stuck Not Coming on main Window

Remote Control Stop Working

Restart LED TV During Working 

For this kind of problems you need to install Fresh Firmware

Firmware International Price 20 USD 

https://electronics-tricks.blogspot.com/2023/08/classpro-egs55uhd.html?m=1