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A logic board can hardly be damaged from a drop. Your point is baseless. A display can be damaged indeed, but in this case the issue is quite visible and the unit wont be refurbished without a new display.
A logic board is usually damaged by corrosion or electromigration, a process that occurs over the time.

Sounds like you’re completely unfamiliar with how damage can occur.

Most of the components on the logic board are secured only by solder. This is vulnerable to physical shock. A drop can induce significant shear stress, potentially ripping solder pads from the PCB. This isn't a simple pass-fail scenario. Weakened connections can lead to intermittent issues. Depending on the affected pads, symptoms can range from Wi-Fi and audio disruptions to touch screen problems.

An iPhone 13 Pro Max dropped to the ground without screen damage. You probably think is ok but you don't know what happened inside the motherboard.

 
Sounds like you’re completely unfamiliar with how damage can occur.

Most of the components on the logic board are secured only by solder. This is vulnerable to physical shock. A drop can induce significant shear stress, potentially ripping solder pads from the PCB. This isn't a simple pass-fail scenario. Weakened connections can lead to intermittent issues. Depending on the affected pads, symptoms can range from Wi-Fi and audio disruptions to touch screen problems.

An iPhone 13 Pro Max dropped to the ground without screen damage. You probably think is ok but you don't know what happened inside the motherboard.

I’m an engineer. Familiar enough with electronics and physics. The scenario you are describing is technically possible but very uncommon. Most of the time such damage is clearly identifiable immediately and doesn’t change over the time. So if the part is damaged by a drop, it can be seen and fixed by Apple before refurbishment
 
I’m an engineer. Familiar enough with electronics and physics. The scenario you are describing is technically possible but very uncommon. Most of the time such damage is clearly identifiable immediately and doesn’t change over the time. So if the part is damaged by a drop, it can be seen and fixed by Apple before refurbishment

Good to see you’re backpedaling and learning something new.

Torn/ripped pads are very common. You can hear the founder of iPad Rehab talk about this problem. She’s been in the microsoldering repair industry for over a decade.

And no, many times it isn’t immediately identifiable because the damage is cumulative.

 
Good to see you’re backpedaling and learning something new.

Torn/ripped pads are very common. You can hear the founder of iPad Rehab talk about this problem. She’s been in the microsoldering repair industry for over a decade.

And no, many times it isn’t immediately identifiable because the damage is cumulative.

You can post how many unrelated videos you want. Your point about refurbished still is baseless
There is literally nothing I can learn from you. Over a decade? Should I be impressed of such a short time ?
 
You can post how many unrelated videos you want. Your point about refurbished still is baseless
There is literally nothing I can learn from you. Over a decade? Should I be impressed of such a short time ?

Yup, it's baseless. Doesn't happen. 🤣
 
I’m an engineer. Familiar enough with electronics and physics. The scenario you are describing is technically possible but very uncommon. Most of the time such damage is clearly identifiable immediately and doesn’t change over the time. So if the part is damaged by a drop, it can be seen and fixed by Apple before refurbishment
I'd say that most of the time drop damage that affects the internals isn't clearly identifiable at all, and it's much more likely to cause intermittent issues (which are the hardest to diagnose) due to loose solder connections and/or micro cracks in a PCB. It's the kind of thing that can pass Apple's diagnostics one minute, and glitch out the next.
 
I'd say that most of the time drop damage that affects the internals isn't clearly identifiable at all, and it's much more likely to cause intermittent issues (which are the hardest to diagnose) due to loose solder connections and/or micro cracks in a PCB. It's the kind of thing that can pass Apple's diagnostics one minute, and glitch out the next.
Again, baseless assumptions about how Apple tests units destined to refurbishment. Drop damage that could affects the internals would leave some scuffs on the outer shell, so Apple will change the outer case (they are doing that in many cases) and thoroughly check the logic board. To replace a refurbished unit with another refurbished unit, in case of a problematic one, costs them money they don’t want to spend.
 
Let’s be honest , solid state devices aren’t commonly going to get impact damage on their boards these days compared to days gone by. Less components to break. No more delicate valves and oscillators.🤣
 
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Again, baseless assumptions about how Apple tests units destined to refurbishment.
Ironic considering that you’re making baseless assumptions about how Apple tests units 😂

I just traded in a 15 Pro Max that had intermittent hardware faults, and was 100% defective, but Apple’s diagnostic software showed no problems. I guarantee you they’re going to pass that along in the refurb and I feel bad for whoever ends up with it 😱😩
 
Ironic considering that you’re making baseless assumptions about how Apple tests units 😂

I just traded in a 15 Pro Max that had intermittent hardware faults, and was 100% defective, but Apple’s diagnostic software showed no problems. I guarantee you they’re going to pass that along in the refurb and I feel bad for whoever ends up with it 😱😩
I never said intermittent hardware faults don’t exist. I said it is not something caused by a drop, most of the times.
And, again, you don’t know if your unit will going to refurbish basket as it is.
 
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