How to find a short in a Macbook logic board by using your brain.
Here I demonstrate one basic, low tech method to find a short to ground in a Macbook Pro logic board. I am commonly asked where I went to school to learn this, told I am a genius, etc, and I really...
View ArticleRossmann’s beginner’s guide to iPad Screen Repair.
I posted this in response to another question on the internet a while back. I figured it was worth a repost on the company blog. a) There are no fault indications to tell whether a digitier is bad....
View ArticleMacbook Pro 2011 GPU issues – it’s NOT the solder balls!
I posted this to that 2011 MBP GPU issue facebook page. I figured it was worth a repost here. Another thing to set straight. Do any of you guys going on and on about how this is “improperly soldered”...
View ArticleEmployee management 101; look for patterns, not excuses!
From an employer’s perspective, it is important to hire people who will produce for your business. You’re going to find a lot of employees that come up with excellent reasons as to why they were...
View ArticleIs it right to take an iPhone 6 to Apple to get it fixed for a customer?
Apple replaces the screen to the iPhone 6 for $109. There is a lot of talk in the iDevice repair industry on whether it is ethical or not to take a phone from the customer, then bring it to Apple and...
View ArticleWhat is the importance of a diode mode measurement in troubleshooting Macbook...
What makes diode mode measurements different from resistance mode measurements? Diode mode measurements allow me to quickly get an idea of what the entire circuit is doing and compare it to a known...
View ArticleBGA rework video using ZM-R6200C for Macbook logic board repair
Not relevant much anymore since Apple is covering these failed GPUs for free, but I figure it may be of interest to some how the work is performed. Here you’ll see me remove the old chip, prepare the...
View ArticleThe onewire circuit’s importance to Macbook logic board repair.
If the onewire circuit does not work, the charger will only output limited power to the board, and nothing will work off of the charger. The onewire circuit depends on proper function of the battery...
View ArticleExplanation of PP3V42_G3H power line on Macbook Pro logic board
In the past blog, I discussed the onewire circuit. Here I’d like to talk about a specific power rail, that powers the onewire circuit, and its importance. The PP3V42_G3H power rail is one of many...
View ArticleWhat is a voltage divider?
A voltage divider is a series of two resistors one can use to lower an input voltage to your desired voltage. Let’s take the BKL_EN circuit, for example. Many circuits inside of a laptop don’t come on...
View ArticleCommon onewire circuit ailment on older Macbook Pro logic boards.
One of the common issues is that liquid gets in along the vent and touches the board since there is no protection, and there are components along the vent that are very important. The onewire circuit...
View ArticleWhat is error 53?
Error 53 is something often discussed online, without much information. Some think it is just an issue when you change the home button on an iPhone 6 or 6+. It isn’t. You can get error 53’d even with...
View ArticleAmtech NC-559-V2-TF flux for sale!
In most of my motherboard repair videos, the flux I am using is Amtech NC-559-V2-TF. A lot of people have asked what flux I am using because it makes the job so much easier. Even if I tell you what it...
View ArticleMacbook logic board repair, short detection
Here I go over how we troubleshoot a short to ground on PPBUS_G3H, a main power line on the Macbook Air logic board. Here we have an issue where the CPU vcore circuitry. Many people use the word “short...
View ArticleMacbook Pro Retina water spill no video repair
This Macbook Pro retina logic board has no output on the internal screen. However, using a displayport to VGA adapter, I was able to get a picture to show upon an external monitor, and I was able to...
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Our store’s location
No appointment is necessary – come by during our open hours and we are happy to help you! The Rossmann Group – Manhattan186 1st Avenue New York, NY 10009 (347) 552-2258 Monday-Friday – 12 PM to 8 PM...
View ArticleI started an IAMA on reddit today, and yes it’s me.
Just incase anyone doubts! https://www.reddit.com/user/larossmann is me The post I started an IAMA on reddit today, and yes it’s me. appeared first on Macbook Repair in NYC | 347-552-2258.
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There are no shortcuts around component level repair.
I see many people pointing to dry boxes, thirsty bags, and other hip new “tools” that supposedly fix liquid damaged devices. The reality of the matter is that a burned out component is a burned out...
View ArticleHinge
Hinge filler The post Hinge appeared first on Macbook Repair in NYC | 347-552-2258.
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