Hello.
So I bought this used MacBook Pro Retina 15inch, late 2013. It had an issue with the speakers and the headphones (remained stuck on headphone mode). So I took it to a repair service. They found liquid spilled on the inside. They cleaned the motherboard, and the sound malfunction was fixed. I picked it up, took it home, powered it up, and put it on charge and let it to sleep. Half an hour later I went to check on it and it didn't wake. There was a black screen and the cursor was unresponsive. I shut it down, power it up again and I get a black screen with an hdd with a question mark, blinking. Tried to reinstall Sierra from USB but in disk utility the disk wasn't there. Tried PRAM reset, smc reset, everything. Nothing changed. Took it back to the service and they insist it's something wrong on the logic board. After 5 days they still cannot spot what's wrong, everything in the board looks ok (apart from a dead thunderbolt input which can be replaced). They tried a different SSD and the mac still wouldn't see it. They asked for 2-3 days to give it a comprehensive check. I am in panic mode now. Any suggestions please?
So I bought this used MacBook Pro Retina 15inch, late 2013. It had an issue with the speakers and the headphones (remained stuck on headphone mode). So I took it to a repair service. They found liquid spilled on the inside. They cleaned the motherboard, and the sound malfunction was fixed. I picked it up, took it home, powered it up, and put it on charge and let it to sleep. Half an hour later I went to check on it and it didn't wake. There was a black screen and the cursor was unresponsive. I shut it down, power it up again and I get a black screen with an hdd with a question mark, blinking. Tried to reinstall Sierra from USB but in disk utility the disk wasn't there. Tried PRAM reset, smc reset, everything. Nothing changed. Took it back to the service and they insist it's something wrong on the logic board. After 5 days they still cannot spot what's wrong, everything in the board looks ok (apart from a dead thunderbolt input which can be replaced). They tried a different SSD and the mac still wouldn't see it. They asked for 2-3 days to give it a comprehensive check. I am in panic mode now. Any suggestions please?