Chosen Solution
About Me - I am a relatively new, 19 year old Senior Technician at a store that repairs primarily apple products. I’m starting out as the senior tech here with almost no previous experience except my interest to go into computer science later this year when I start my college classes. To say in the very least, I’m still learning, so please be patient if it takes me a little time to catch on to all that you might try to help me with. I Love learning these things and thought this would be a good place to start because i look at the forums often for help, this is just my first post thus far. I’m always looking for more ways to learn and adapt my skills in this industry. I love my job and can’t wait to learn more about the things I’m doing! Thank you very much for reading or helping me with diagnosing the Issue below. - Cole W. Today’s problem: Diagnostics I received a 2015 13" Macbook Air and the customers problem was that the computer randomly shut off while his daughter was watching a youtube video and then it would not power back on after being plugged in. They attempted to fix it themselves just by those steps i.e. (unplugging it and discharging and then plugging it in again to see if it powers on. So far I have tried unplugging the battery from the logic board and powering on to see if the battery was the problem at hand. It still didn’t power on. So my only thought is the IO port is bad and that needs replacing, I came here to see if anyone thinks that would be my best next step or if any of you had any advice for me on this project. Update (01/08/2018) A friend of mine who does board repairs/ micro soldering suggested it might be the smc chip has lost its touch.
It seems that the SMC (System Management Controller) needs a reset, when this kind of symptoms appear: Power Management problems: shutting down; does not wake up; doesn’t go to sleep; battery is not chargingCooling System Management: fan hits top rpms; computer feels hot and fan is not varying its speedLighting/Contrast Management: unable to change contrast; contrast goes from dark to full brightness; keys backlight not workingExternal displays Management: VGA or HDMI adapters not working The procedure to reset the SMC on a MacBook Air 2015 will be: Shut down computer; force shut downConnect the power adapterOn the computer keyboard press SHIFT-CTRL-OPTION and POWER buttons simultaneously. Keep them pressed for 3 seconds approximatelyRelease all keys at once. The led on the charger might change color to indicate that an SMC reset has been performedBoot the computer as usual Booting process might take longer than usual. Some power related parameters will be reset to factory settings, such as sleep time. I hope this works.
We know the power feed from the MagSafe is working (Amber to Green). We don’t know yet what the state of the battery as we can’t get it to boot up. If we could I would try running coconutBattery to see the health of the battery. Lets see if the power pads will kick the system on. Here’s the location of the pads:
Did quickly shorting across the pads cause the system to start up?
Ok, so i have the same model and did all the steps listed here and else where but still will not charge and the batter has an X in it! am i missing something?
