Timothy

Greetings folk, here is another one for us today: I got this 27” Thunderbolt Display for less than $50 with no backlight....

As the title states, I bought a brand new power supply for the display, but there is no voltage on any of the test points...

So here is the rundown: I got this display on Craigslist for cheap. When plugging in, it supplies my 2011 MBA power via...

Alright iFixiters, I have a whacky one for you today.. I have a 11" 2011 MBA with a broken display. I just picked up a...

Just looking to purchase some of the material Apple uses to wrap their batteries. It appears that they use a thin black...

Hey iFixit, I just replaced a liquid damaged keyboard on an 11" 2010 MacBook Air and updated to Sierra. My issue now is...

Salutations fellow fixers, I am new to the repair game, but confident in my technique and ability, but weak in experience....

Sorry to open this thread up again. I have a very similar issue that may be closely related. My Mac Mini 2011 with Intel i7 and 6630m randomly reboots during startup and normal use. Sometimes I can run Blender on it heavily before it fails, but it always does after some amount of time. I have replaced the PSU as well as the HD cable along with putting an Intel SSD inside. I hear some people talking about cold solder joints on some chip, is that the Intel BD82HM65 Platform Controller Hub? If I were to pursue the logic board repair would this be the first thing to try? Thanks in advance for everyone's willingness to help!

Try restarting the phone

This will get you started.

Try wiggling or reseating the bracket and connector between the display and the logic board.

Restart the computer and hold CONTROL + COMMAND + P + R to do a PRAM reset. The screen will go dark then come alive again. Otherwise you can buy an inexpensive MacBook Air keyboard on Amazon or Ebay.

If anything that sounds like a properly functioning solenoid. I made you a schematic: Maybe there is a blockage in the steam wand; the steam getting released after the function is shut off sounds like it is getting blocked on delivery to the cup. Its pretty common for there to be milk dried in the steam arm if it's not purged after steaming. Hope this helps, Timothy

Open the back casing and look for a fuse on the power supply, or for burn marks on the display board.

There is probably a short circuit somewhere along the line. Remove the motorized parts and look for burn marks or exposed metal.

Do a backup and restore with iTunes, then let me know if the issue persists.