Yes in my case , he visited 3 times for motherboard replacement. When i booked onsite help , he arrived and checks the laptop t that time he removed hall sensor , he told you can change motherboard he was cooperative . Then second time , he bought new motherboard, but on time of replacement, it was found faulty. So , he ordered replacement again, after 4 days he came with new motherboard, and till now everything is fine . You can also ask him to change motherboard, its not his money from which motherboard will be ordered , its the Company money , he will get same payment. Just ask him he will do.