MacBook Pro failed after Logic Board replacement

a friend spilt drink on macbook pro 15" mid 2010 @ new years , screwed keyboard & backlights took in top case replacement (at time else still worked perfectly,must sticky keys , no backlights)
once in rang they'd found liquid on logic board agreed replaced rather wait fail.
had few days , it's been running fine unti of sudden today ten minutes turning on screen went fuzzy , froze.
held down power button shut down , started couple of times, chime , grey start screen fine 20 seconds goes fuzzy again. next time same plus loads of flashing colours... freezes , can't past loading screen.m

i'll taking apple store - know, sound logic board issue or else? have pictures if necessary.

 

got start minute went again

 

Forums Macs Notebooks MacBook Pro

• iPhone
• Mac OS & System Software
• iPad
• Apple Watch
• Notebooks
• iTunes
• Apple ID
• iCloud
• Desktop Computers
• Apple Music
• Professional Applications
• iPod
• iWork
• Apple TV
• iLife
• Wireless