BLOG
Louis Rossmann’s rants, tips, and ideas on the laptop repair industry.
Rossmann Group’s Recommended Tool List
Below is a list of tools that are recommended by the Rossmann Group: Microscope - http://www.amazon.com/AmScope-SM-4B-...oom+microscope Microscope light http://www.amazon.com/AmScope-LED-14...scope+ring+led Hot air station- Quick 861DW:...
Fixing a 2012 Retina MacBook Pro with no power
What is the issue? This customer sent in their MacBook to our store in New York City for our logic board repair service because it has no power. What was causing the issue? The first step to diagnosing a MacBook is to go through all the power rails required for the...
Fixing a MacBook that has no backlight because of a bad coil
What is the issue? This customer sent in their MacBook to our store in New York City for our logic board repair service because it has no backlight. What was causing the issue? The first step to finding the cause of a backlight issue is figuring out what type of...
Fixing Yet Another MacBook Air with No Backlight.
What is the issue? This customer sent in their MacBook Air to our store in New York City for our logic board repair service because it had no backlight. What was causing the issue? The first thing we have to check on any MacBook that has no backlight is the Backlight...
Fixing a MacBook Pro with no power
What is the issue? This customer sent in their MacBook Pro to our store in New York City for our logic board repair service because the machine would not turn on. What was causing the issue? We start off by seeing that there is no green light on the charger. Next, we...
Fixing a MacBook Pro with a bad SMC
What is the issue? This customer sent in their MacBook Pro to our store in New York City for our logic board repair service because the machine would not turn on. What was causing the issue? We start off diagnosing this machine by looking at the power rails that need...
Why do 2012 15″ Retina MacBook Pros with a dGPU die?
What are the symptoms of this common issue? This issue is present on Late 2012/Early 2013 model 15" MacBook Pros that have a GT650M Graphics card. The issue can present itself in several different ways, including sudden shutdowns, kernel panicking, black screening, or...
Fixing a MacBook Pro with No Backlight in NYC
What's wrong with this MacBook? This customer sent in their MacBook Pro to our store in New York City for our logic board repair service because it had no light on the screen. When we shine a light through the back of the screen, we see an image. That means that this...
Fixing a MacBook Pro that doesn’t turn on
What's wrong with this MacBook? This customer sent in their MacBook Pro to our store in New York City for our logic board repair service because it wasn't turning on. The customer had attempted to replace their own keyboard and clean off their motherboard. How do we...
Fixing a Retina MacBook Pro that doesn’t turn on
What's wrong with this MacBook? This MacBook was sent to us for our MacBook Logic Board Repair Service in NYC because it didn't turn on. How can we fix the issue? Initial diagnosis First, we start off by observing that it pulls 200mA from the charger. This indicates...