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XZp not so waterproof - usb port vulnerable?

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I've been playing around the service menu and tested the Pressure Sensor. In a solid waterproof phone, pressure should remain steady when acted upon by outside forces.

I simply tried to moderately blow some air into the USB port and there's a notable difference. Also removed the sim cap and sucked on the port. Air was clearly passing through.

I'm curious if it's just my phone with this issue in which case I'll replace it, or if it's a design fault, in which case you shouldn't submerge it.

In the screenshots you'll see the pressure difference. So please test this by accessing the service menu *#*#service#*#*, > tests > pressure sensor and simply blow some air into it.

And for the giggles and ranting, there's the sony talk thread :P https://talk.sonymobile.com/t5/Xperi...ght/true#M2652
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20th June 2017, 09:32 AM |#2  
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Quote:
Originally Posted by Sebi673

I've been playing around the service menu and tested the Pressure Sensor. In a solid waterproof phone, pressure should remain steady when acted upon by outside forces.

I simply tried moderately blowing some air into the USB port and there's a notable difference. Also removed the sim cap and sucked on the port. Air was clearly passing through.

I'm curious if it's just my phone with this issue in which case I'll replace it, or if it's a design fault, in which case you shouldn't submerge it.

In the screenshots you'll see the presiune difference. So please test this by accessing the service menu *#*#service#*#*, > tests > pressure sensor and simply blow some air into it.

In Xperia Z3 there was a hole in the lower-left corner that if not covered by hand also let the pressure to drop down.

I think that every phone has to have some kind of a "blow off valve" to prevent internal pressure from rising when the phone heats up to avoid damaging the seals around the screen and the back.

Note that when you cover the usb port pressure stays perfectly stable. The phone is still waterproof it just lets the internals "breathe"
20th June 2017, 09:49 AM |#3  
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Quote:
Originally Posted by mracer164

In Xperia Z3 there was a hole in the lower-left corner that if not covered by hand also let the pressure to drop down.

I think that every phone has to have some kind of a "blow off valve" to prevent internal pressure from rising when the phone heats up to avoid damaging the seals around the screen and the back.

Note that when you cover the usb port pressure stays perfectly stable. The phone is still waterproof it just lets the internals "breathe"

It's far more than a simple valve. For example if you have water in the port and you blow some air to take it out, that water will actually go inside the phone. I'm asking because if ever submerged, water pressure will be far grater than my air blowing capabilities ))) so things can get messy pretty fast.

It's far too easy to change the pressure inside it, so all I need to know is if other XZp are behaving the same way or if it's just mine.
20th June 2017, 09:53 AM |#4  
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Quote:
Originally Posted by Sebi673

It's far more than a simple valve. For example if you have water in the port and you blow some air to take it out, that water will actually go inside the phone. I'm asking because if ever submerged, water pressure will be far grater than my air blowing capabilities ))) so things can get messy pretty fast.

It's far too easy to change the pressure inside it, so all I need to know is if other XZp are behaving the same way or if it's just mine.

As I said Z3 behaved similarly and I have submerged this phone a couple of times and never had any problems with it. Note that air particles are much more able to squeeze through tight spaces than water.

Same principle aplies to waterproof jackets, they let the air pass through so that you wont get sweaty while at the same time the won't let water go through.
20th June 2017, 10:36 AM |#5  
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Quote:
Originally Posted by mracer164

As I said Z3 behaved similarly and I have submerged this phone a couple of times and never had any problems with it. Note that air particles are much more able to squeeze through tight spaces than water.

Same principle aplies to waterproof jackets, they let the air pass through so that you wont get sweaty while at the same time the won't let water go through.

Yes man, I know what a valve is and how it operates in a phone. I've been having xperias for over 5 years. I'm not on Talk.sonymobile, I'm on xda. So if you can try the test whenever you can. All it takes is 1 minute.

I opened this thread because I need to see if mine has those rubber seals too loose or if it's a general and normal thing. I asked for xzp owners to try the test because on my phone air passes virtually unobstructed.
20th June 2017, 10:40 AM |#6  
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Quote:
Originally Posted by Sebi673

Yes man, I know what a valve is and how it operates in a phone. I've been having xperias for over 5 years. I'm not on Talk.sonymobile, I'm on xda. So if you can try the test whenever you can. All it takes is 1 minute.

I opened this thread because I need to see if mine has those rubber seals too loose or if it's a general and normal thing. I asked for xzp owners to try the test because on my phone air passes virtually unobstructed.

It works for me exactly the same way as you described. Sorry I didn't mean to patronise you in any way
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20th June 2017, 10:46 AM |#7  
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There is a pressure regulation in every phone. The reason is the battery, in case the battery is defective (see Shamesung Note ), it will produce gas. This gas can later inflame, hence it is important to get it out of the device.
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20th June 2017, 11:07 AM |#8  
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Originally Posted by Illux

There is a pressure regulation in every phone. The reason is the battery, in case the battery is defective (see Shamesung Note ), it will produce gas. This gas can later inflame, hence it is important to get it out of the device.

I know, I just spent a lot of money on this thing and I'd rather avoid damaging it. In my opinion that valve is way too lose.

Check this video out, I do not agree with this idiotic test but in the end the phone got water damaged. Vibrator Motor is right next to the USB port which in this video it keeps on vibrating even after device is off.
https://youtu.be/Z3JUGkXXXJw?t=17m52s

I might be a bit paranoid but submerging this phone is not a good idea. Maybe something like this will help https://images-na.ssl-images-amazon....L._SL1500_.jpg
20th June 2017, 11:11 AM |#9  
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Quote:
Originally Posted by mracer164

It works for me exactly the same way as you described. Sorry I didn't mean to patronise you in any way

I know, I'm sorry for jumping the gun. Didn't get a full night sleep.

I'm weary because I had Xperia XZ for a week, did the same test but the breathability on the usb port was minimum. Anyway, I'll be careful. My (very) old Xperia Z got water damaged in the pool due to a worn rubber band on the headphone jack. Damage was extensive.
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20th June 2017, 11:19 AM |#10  
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Quote:
Originally Posted by Sebi673

I know, I just spent a lot of money on this thing and I'd rather avoid damaging it. In my opinion that valve is way too lose.

Check this video out, I do not agree with this idiotic test but in the end the phone got water damaged. Vibrator Motor is right next to the USB port which in this video it keeps on vibrating even after device is off.
https://youtu.be/Z3JUGkXXXJw?t=17m52s

I might be a bit paranoid but submerging this phone is not a good idea. Maybe something like this will help https://images-na.ssl-images-amazon....L._SL1500_.jpg

If damaged by submerging, I'd send it on for guarantee and request a new one. It states IP68 proof, that means 30 minutens fully submerged.

Oh and btw, the guy actually FROZE his phone for 12 hours .
20th June 2017, 11:26 AM |#11  
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Quote:
Originally Posted by Illux

If damaged by submerging, I'd send it on for guarantee and request a new one. It states IP68 proof, that means 30 minutens fully submerged.

Oh and btw, the guy actually FROZE his phone for 12 hours .

I know.... It's an idiotic test. But leaving that aside, it is compared to another waterproof phone which worked as good as new afterwards. So it's safe too assume that the USB might be letting in a bit more than just data and power.

It's a bit of a letdown, I'll wait for the teardown videos to see if they finally coated the motherboard and other boards against water ingress. Just like you see in the iphone and samsung.
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