Chosen Solution
The backlight on a MacBook of mine has recently stopped working. No liquid or impact damage. I swapped out the display cable however it had no affect and also tried a different display entirely and it had the exact same issue with no backlight which suggests to me that perhaps it’s an issue with the connector on the logic board itself? Anyone experienced similar before and might be able to point me in any directions to the cause/a fix?
You’ve isolated the issue down to the backlight driver logic on the logic board. Its a Buck inverter (WLED driver) which can go bad and/or the fuse link blew. Are you able to repair this logic board? If not you’ll need find someone with the needed skills, tools and access to the needed parts or you’ll need to replace it.
HI , if no liquid damage or other and you have replaced the screen with the right one ( it has o match model number and EMC number and yer ) , then it is logic board issue regards