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To: _Jim
I got through three lies in the first three things he claimed as being true. . . and I almost stopped watching. His first claim was about the NVIDIA graphics chip batch that was sold to almost every other laptop maker at the time, including Apple and his claim that Apple refused to honor warranties due to failure of a laptop to even boot up. That is completely false. If the laptop failed to boot, it was prima facie evidence it was DOA and would be replaced regardless of why it would not boot. Whether or not the logic board would be replaced or not was irrelevant. The NVDIA chip had nothing to do with booting or the white power light on the front of the case. If that did not come on, there was something else wrong with the computer than the graphics chip.

His next claim that the 2008 Unibody MacBook Pro was “glued” together that her than machined out of a single block of aircraft grade aluminum was ridiculous as he showed the gasket being glued for the screen. Absurd. . . Or that the hinges were screwed to the frame. I’ve unscrewed those hinges. They are anything but thin pieces of frame... “that fail after a few years of use” compared to the plastic pieces used on many other makers’ plastic frames. This is just a thinly disguised hit on Apple.

He then goes on to the completely non-existent iPhone 4 antenna issue, claiming that Steve Jobs joke about “you’re holding wrong was true.” The iPhone 4 was sold in the entire rest of the world with no attenuation problem and had actually no attenuation problem in real use. The problem existed only on AT&T network with overloaded networks at extreme ranges of cellular tower reach. Verizon versions had zero problems. Apple made no changes in any versions of the iPhone 4 antenna design and it went on to be at the time, the best selling phone in the world. It was a propaganda campaign engineered by Samsung. In actual fact, the ability of the iPhone 4 to send and receive signals was higher than any previous iPhone, even on weak signals. If you changed the on screen indicator from bars to actual signal strength to an S meter, as I did, you could see the actual signal strength readings, rather than a bar graph.

No where does this bozo tell anyone that Apple gave away what he calls a $29 fix for the “problem” and he out right says it added to the cost of the phone. That’s an outright lie. Many people did not even bother to ask for the free case because they were not having any problem.

The Capacitor “issue” he repeatedly claim exists. If there were such a huge problem, thousands of people would be claiming their MacBook Pro’s would be failing to boot due to a slightly undersized capacitor. They simply are not. It is a seldom mentioned problem, most likely due to a capacitor that is way below specs that is expected in production of capacitors. You do not over engineer parts that require more space/weight/cost due to a 1 in 1,000,000 potential failure rate of a minor part. Occasionally, a run of below spec parts may get through. However, every part that takes more power to run, also requires more battery power to support it. Capacitors fall into this category. They need to be charged up to provide the voltage this guy says they need to do their job. That power has to come from somewhere. Engineering decisions which he says he can do better than Apple.

Seriously, Louis Rossmann can list his “major” Apple engineering complaints in a 24 minute YouTube, spending at least five minutes on each one. . . And many of them are, in fact, bogus repetition of minor issues that Apple corrected or that did not in fact happen except in propaganda from Apple’s competitors or afflicted such a minor number of Apple users that they don’t even rise to a blip on the radar when compared to the failures of other makers.

75 posted on 06/19/2019 2:08:16 PM PDT by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you hoplaphobe bigot!)
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To: Swordmaker

I don’t think you know who Louis Rossmann is, or what he’s been doing (low-level, component-level SMD board repair on Apple product) for the last - decade or so ...

I THINK he has basis for his complaints.

I give your basis for objection very little weight.


77 posted on 06/19/2019 2:22:47 PM PDT by _Jim (Save babies)
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To: Swordmaker
The Capacitor “issue” he repeatedly claim exists. If there were such a huge problem, thousands of people would be claiming their MacBook Pro’s would be failing to boot due to a slightly undersized capacitor. They simply are not. It is a seldom mentioned problem, most likely due to a capacitor that is way below specs that is expected in production of capacitors. You do not over engineer parts that require more space/weight/cost due to a 1 in 1,000,000 potential failure rate of a minor part. Occasionally, a run of below spec parts may get through. However, every part that takes more power to run, also requires more battery power to support it. Capacitors fall into this category. They need to be charged up to provide the voltage this guy says they need to do their job. That power has to come from somewhere. Engineering decisions which he says he can do better than Apple.

I don't believe the issue that he raises has anything to do with the capacitance value of the part. He states that when the issue is seen, the voltage across the capacitor has dropped to 0.3 volts rather than the normal 1.052 volts. This is a clear indication that the capacitor in question has failed, and is displaying excessive leakage current. He mentions using a replacement that is physically larger. Though he doesn't so state, it sounds like he is using a replacement with a higher voltage rating.

It's hardly a "minor part" if its failure results in a totally inoperative unit.

Capacitor manufacturers generally recommend operating tantalum capacitors at no more that 50% of the rated voltage for optimum reliability and longevity. Apple's choice of a 2 volt rated part would be marginal from this standpoint. A 2.5 or 3 volt part would have been a better choice, albeit at a slightly higher cost.

It sounds like he is adding in a safety factor which is prudent as long as the larger part will fit.

115 posted on 06/21/2019 4:51:23 AM PDT by Fresh Wind (The Electoral College is the firewall protecting us from massive blue state vote fraud.)
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