tire pressure sensor - Android Head-Units

Does anyone know what kind of battery to use in the tire pressure sensors? I have the one from Joying.

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[Q] proximity sensor rubber part

Does anyone know where the small rubber part which fits between the proximity sensor and the screen can be bought ?
alexnh said:
Does anyone know where the small rubber part which fits between the proximity sensor and the screen can be bought ?
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The rubber cap has partnumber MBL65457701, search and you will find!

Magnets & OIS don't match

For you photo buffs out there who are interested in adding magnetic detachable lenses to your Note 4 should be aware that magnets will interfere and possibly damage the OIS mechanism. Any magnet near the lens will cause the lens to move in the direction of the magnet and the phone will be unable to focus properly. Even with OIS off your lens will attempt to focus on an object wbut will be unable to due to the pull from the magnet.
I happen to have a 3 in 1 kit from my galaxy S4 that has the macro, wide angle, and fish eye lenses and was wondering if the magnets would effect the lens. Sure enough it does. So what are your options? You can get the clip on style which i dont like that much because it puts pressure on the screen and causes it to change focus points. You can also get a housing with the screw in type lens that contains no magnets. As of this post there is not one made for the note 4 yet but there is one for the note 3.
This maybe useful info for some who are unaware of the workings of OIS. Dont waste your money on the magnetic detachable type.
gpvlog said:
For you photo buffs out there who are interested in adding magnetic detachable lenses to your Note 4 should be aware that magnets will interfere and possibly damage the OIS mechanism. Any magnet near the lens will cause the lens to move in the direction of the magnet and the phone will be unable to focus properly. Even with OIS off your lens will attempt to focus on an object wbut will be unable to due to the pull from the magnet.
I happen to have a 3 in 1 kit from my galaxy S4 that has the macro, wide angle, and fish eye lenses and was wondering if the magnets would effect the lens. Sure enough it does. So what are your options? You can get the clip on style which i dont like that much because it puts pressure on the screen and causes it to change focus points. You can also get a housing with the screw in type lens that contains no magnets. As of this post there is not one made for the note 4 yet but there is one for the note 3.
This maybe useful info for some who are unaware of the workings of OIS. Dont waste your money on the magnetic detachable type.
Click to expand...
Click to collapse
Or maybe an industrious 3D printer owner such as my self who also just happens to have Note 4 might come up with something.

[Q] Nail Polish on Nexus 10 screen

One of my daughters got nail polish on the display of our nexus 10. What the recommend way to clean it off. I figure nail polish remover is likely to damage the screen. I read a bit that rubbing alcohol might work. Thoughts or views?
Firstly, I'm not a chemist.
The web is filled with non-scientific articles about oleophobic/lipophobic coatings on glass. As I understand them they are "Teflon" like polymer coatings and also act as a lubricant that makes it easy for a finger to slide over the glass. Nobody seems to declare what coating chemical they use - you can find articles about removing "Teflon" lubricants (hard!). There are speciality chemicals to do the job "DuPont™ Krytox® fluorinated oils and greases are resistant to most common organic solvents. Because of this resistance, cleanup of Krytox® lubricants and other PFPE oils and greases requires special solvents that are ineffective on hydrocarbon-based lubricants and preservatives."
Below is a table of tests of common household solvents and the measurement of the "contact angle" after 24hrs exposure on a version of Corning Gorilla glass ( http://317d462d97c0f60cc4a8-f82dbb2c4b72989b4dd23857c08d6cc5.r13.cf2.rackcdn.com/local/uploads/files/COR_GG_WhtPaper_Easy-to-Clean.pdf )
The second column is the measured "contact angle" - the higher the better and plain glass could be showing measurements around 10˚ From: http://en.wikipedia.org/wiki/Contact_angle
If the liquid molecules are strongly attracted to the solid molecules then the liquid drop will completely spread out on the solid surface, corresponding to a contact angle of 0°. This is often the case for water on bare metallic or ceramic surfaces,[4] although the presence of an oxide layer, or contaminants, on the solid surface can significantly increase the contact angle. Generally, if the water contact angle is smaller than 90°, the solid surface is considered hydrophilic[5] and if the water contact angle is larger than 90°, the solid surface is considered hydrophobic. Many polymers exhibit hydrophobic surfaces. Highly hydrophobic surfaces made of low surface energy (e.g. fluorinated) materials may have water contact angles as high as ~120°.
Acetone 108.1±3.0˚
Butter 109.3±1.6˚
Canola Oil 103.6±3.6˚
Citrus Cleaner (dilute) 104.2±0.7˚
Dish Soap 108.8±1.4˚
Ethanol 113.5±1.2˚
Ketchup 113.2±1.3˚
Lipstick 108.7±2.6˚
Lotion 108.9±2.5˚
Make-up Foundation 111.2±1.2˚
Mayonnaise 112.2±2.4˚
Mustard 110.5±0.8˚
Olive Oil 106.0±4.0˚
Orange peel 103.7±3.7˚
Sunscreen 110.4±2.2˚
Spray Glass Cleaner 110.5±0.8˚
The table shows that acetone will remove more of the coating than ethanol (alcohol) but I would think that contact time is also an issue, so that 2 minutes of acetone may be far better than 10 minutes of ethanol . Acetone is known nail polish solvent but ethanol ???. Interesting that olive oil is worse than acetone.
Personal opinion would be to try the nail polish on a glass bottle and see if you can remove the bulk of it with some sort of soft plastic scraper and also see if filling the bottle with hot water makes a difference - to see if heat from a hair dryer on tablet any benefit? I'd then use acetone on cotton buds to soften the varnish and wipe off with microfibre cloth - soften rather than dissolve and spread over a larger area.
Best of luck

using pressure sensor to know if device is still waterproof?

can you use the pressure sensor to know if device is still air tight? like those in xperia z3/compact where if the sensor value rises when applying pressure in display it means it is still waterproof, did anyone test the same on their galaxy S5 that is still waterproof, assuming all flaps are closed just like this thread
http://forum.xda-developers.com/z3/general/guide-test-waterproofing-water-t2897886

Is it possible to remove small micro scuffs on a black S8 body frame?

I've had my black S8 since release date, been rocking a DBrand skin on the back and a official Samsung screen protector on the front.
Today I was driving with my phone on the lap and it slide across and hit the side door as I was turning. When I arrived at the destination I examined and discovered tiny micro scuff on the bottom right corner next to the antenna, also a chip size of a of tiny sand grain on the actual antenna.
My main concern is the scuff as the chip on antenna doesn't bother me. I was wondering if it would be safe to use car polishing products or car scratch removal products to try and reduce or fix the scuffs.
I will be applying the products with a q-tip and slowly buffering it in and finish of with a microfiber cloth. If it succeeds in hiding or fixing the scuff I'll add some wax to the area to seal it in so it'll minimise the effectiveness on wearing off quicker.
Any thoughts or advice? :fingers-crossed:

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