Answer to "Use a cooling fan as a temporary solution to the T-CON issue"imho making the A1708 to live longer just because it’s cute makes no sense. and repairing it make no economical sense anymore. so… if you still need a working horsy - just remove the display assembly and output video on the external monitor. yes, i know how radical my solution may sound )) this way you will protect the display assembly for sure and on the way you will also discover that heat buildup at the top part of the top case is mostly due to the T-CON board itself and not from the backdraft from the heatsink, nor bad thermal design of other parts, nor intel’s fault etc. etc. added plus is that the ventilation of the main compartment will be much better without a display assembly than with it. if you know that you can reattach you perfectly good monitor in just 20 minutes top, why not?
Answer to "I can't connect to an external display using a USB-C to HDMI adapter"Some hub/adapters are just finicky and refuse to work no matter what. Some hub/adapters will work after Macbook will first go to sleep with the hub/adapter plugged in, enabling the video output on waking up. If you disconnect such a hub/adapter from the Mac you will most probably need to repeat aforementioned procedure again. And some hub/adapters will just work no matter what, including the one made by Apple itself.
Answer to "Water damage and electricity"Unfortunately most of those stories range from bad to very bad. There are almost nothing to recover in most cases of water damage and there are too many variables to consider for most DIY projects. At the current state of the market it would be advisable to invest in working second hand A1708 than in repairing a water damaged one economically speaking. Having a working A1708 will give you opportunity to test components of the water damaged unit and sell those parts that are still operational if you still want to get some DIY going. If you careful enough the risk of damaging working A1708 with those test parts could be minimized.
Answer to "Where are the hall effect sensors that detects opening and closing of"Damage to the hall sensors would be the last thing that I would check. Which version of Os do you use? About the hall sensors - there are two of them which prevents a stray magnet from tripping the detect. Right sensor is on audio flex, connected to the pin 1 of R5257 and R5254 on the logic board, and left should be on the left somewhere but also not on the logic board, perhaps on on audio flex, connected to the pin 1 of C5251 and R5253 on the logic board.
Answer to "My MacBook died after I plug my power cord"Hope you figured it out but if not - your Mac most probably alive. No the difference in the voltage should not do any harm unless it delivered in spikes of enormous amplitude which should be rare even in Philippines Could you please precise with what key combo have you tried to restart? Have you tried Control+Option+Shift+Power button? If not - try it. Same key combo as for SMC reset but one quick press. If it is up and running - great. If not - try to do SMC and PRAM reset and see what’s happening. Normally it should fix your A1708. If not - I would first check the power supply module whether it is working with something else. If it is working and your Macbook Pro still show no signs of life then the deeper investigation will be necessary. Let’s hope it will not be that serious. Please post your findings and we will proceed from those.
Answer to "Dark Horizontal lines on MacBook Pro 2017"I would check if that Fan Control software did not hijack the control of the fan, then perhaps will try to use another fan control software. since the readings for all sensors looks normal it will most probably solve conundrum with those 1200 rpm. As for those lines - most probably the case of that famous here "delamination issue" of the T-CON board, though, are you sure your Macbook haven't been in the warm and humid place before? I mean even if you have to go to Apple with this problem to replace the display assembly, I would still suggest checking the water indicators inside your Macbook first.
Answer to "MacBook Pro A1708 EMC 2978 powers on but no display"Can you first try the HUB with the video output and external monitor? If it works then most probably it is T-CON board that is dead, not your motherboard, which is kind of good news, right? You could still use your Mac with the external monitor, or invest in the display assembly swap.
Answer to "A1708 - no HDMI output"You’ve described exact symptoms of several cases I had and the truth is - it is more probable that those are the problems that are related to the HDMI output of your Thunderbolt 3.0 HUB, NOT those motherboards. I have found that sometimes, mostly with those third party USB-C hubs, all that you need to do is to wait till your Macbook go to sleep turning the monitor off, and then, after waking up, your HUB’s HDMI will be recognized and used. If you will not disconnect that particular HUB from your Macbook, then it’s HDMI output will work from now on all the time. Sometimes you also have to power the HUB up to get the HDMI output, especially when there are power consuming devices connected to your HUB and in those cases where you have no valid battery and use 61W power adapter plugged in. All those things depend really mostly on on the particularities of your HUB. For the slower boot “issue” I agree with Isaac - SMC and PRAM resets would most probably fix that.
Answer to "возможно ли заменить материнскую плату на новую?"Personally I did exactly that swap. So yes - the i7 and 16Gb of RAM motherboard swap could work. Will you be happy with such a swap, due to the “normal” expectation for your Mac to be much faster with such a specs change? Well, I really doubt it. A1708 unfortunately is obsolete.
Answer to "Can the SSD be replaced?"The answer is definitely. You could go either with Apple own drives or with any of the NVMe PCIe M.2 2242 or 2232 Gen3 SSD drives with the help of the HFHK N-1708A adapter. There are some reports that only one sided 2242 / 2232 drives will fit some of the adapters though, so I would advise to ask questions before making a purchase. Personally I use the HFHK N-1708A adapter with the Sabrent Rocket NVMe PCIe M.2 2242 SSD which is double sided but it fits and works well.
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