I thought I had seen this some where but can't find it. Has anybody heard of talk on a new backplate made of a material that would not screw with wifi and gps? Asus or third-party? Personally I feel Asus should be manufacturing them (since they will be making them for there tf301 anyways), and replace them. But at this point I be willing to pay for it, from Asus or a third-party.
I think they/we won't be able to just replace our back plates. Feel the upper left (upper right corner when viewing your device from the back) after playing some graphic intense games. It gets quite hot.
Now imagine this being plastic, which does not conduct heat that good. I guess the prime would overheat.
There are some plastics that can tolerate heat up to 347 degrees Fahrenheit such as Polymethylpentene. (Not that you need to get up that high in tolerance. You could probably be fine with something like Polycarbonate, which has a heat tolerance of up to 275 F.)
hobbypunk said:
I think they/we won't be able to just replace our back plates. Feel the upper left (upper right corner when viewing your device from the back) after playing some graphic intense games. It gets quite hot.
Now imagine this being plastic, which does not conduct heat that good. I guess the prime would overheat.
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Click to collapse
I highly doubt whatever plastics they use would be unstable enough to melt under the kind of heat the TP puts out.
anti09 said:
I highly doubt whatever plastics they use would be unstable enough to melt under the kind of heat the TP puts out.
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Click to collapse
That's not what I meant. Maybe the metal is there to actually "transport" the heat outside. Plastic would be more isolating, because it does not conduct heat very well. My fear would be the prime overheating, and not the plastic melting.
There are some seriously tough plastics now: I wouldn't worry about their stability.
The heat sink issue could be real, however, but again: there will be a margin of overload built in.
One problem could be the screening afforded by the grounded back plate which if taken away would make the device fail various EMC tests and airplane approvals, due to the emissions of "sprogs" (spurious emissions) from the motherboard and wiring. As currently made, it will have gone through many tests to quantify this, and taking away the aluminium back would screw this up.
FG
Related
Alright. So after almost a month of use, aside from the random ICS lockup/reboots and babying the ASUS Transformer Prime. I looked at the top of my prime, and behold - there was a gap between the screen and the aluminum unit in which I can peak into some of the internals. I got scared as hell and briefly pressed it in. I also began to notice that the sides aren't so flush with the aluminum as well. Anybody notice this?
Can you post some pics of this? I'd return that bad boy ASAP!!
SOPhishicated said:
Alright. So after almost a month of use, aside from the random ICS lockup/reboots and babying the ASUS Transformer Prime. I looked at the top of my prime, and behold - there was a gap between the screen and the aluminum unit in which I can peak into some of the internals. I got scared as hell and briefly pressed it in. I also began to notice that the sides aren't so flush with the aluminum as well. Anybody notice this?
Click to expand...
Click to collapse
Did you notice if the body of the Prime is bowing or warped?
It's kind of pointless posting pics now after I snapped it back in. I'm not going to attempt to simulate what happened. The gap before I snapped it in was almost a centimeter big.
"I'm not sure if you guys can see it. But there are miniscule gaps between the aluminum unit and the screen unit about a millimeter or two thick. This was AFTER I discovered that there was a gaping hole on the top of my Prime in which I promptly pressed the screen and snapped it back in. After a month of babying my Prime, I finally discover the physical imperfections of mine."
The gaps really do look bigger in real life. They're uneven as well. one side might be flush, the other might be gapping by 1-2mm.
Here I recorded a video of how my prime looks. The camera really downplays the gaps. You should watch it in 720p fullscreen to get a glimpse of what im talkin about.
http://www.youtube.com/watch?v=d0CwiR5VbEw&feature=youtu.be
SOPhishicated said:
It's kind of pointless posting pics now after I snapped it back in. I'm not going to attempt to simulate what happened. The gap before I snapped it in was almost a centimeter big.
Click to expand...
Click to collapse
A centimeter!? That's more than the thickness of the entire device, are you sure you didn't get the device damaged, since I see no reason whatsoever why would a device pop open for a centimeter. TF201 is not built 'under pressure' to do that, the only pressure that might come from is if the aluminum body is slightly warped, but that would not really cause an entire centimeter gap either (though it does cause those very small gaps).
SOPhishicated said:
Alright. So after almost a month of use, aside from the random ICS lockup/reboots and babying the ASUS Transformer Prime. I looked at the top of my prime, and behold - there was a gap between the screen and the aluminum unit in which I can peak into some of the internals. I got scared as hell and briefly pressed it in. I also began to notice that the sides aren't so flush with the aluminum as well. Anybody notice this?
Click to expand...
Click to collapse
See here...I am in the same boat...sent mine back
http://forum.xda-developers.com/showthread.php?t=1471363
How many times did you do the "squeeze fix" before this happened?
Mine also has a little bit of play especially on top above the camera lens. This is my second prime. I will be returning this one as well.
acidus. said:
How many times did you do the "squeeze fix" before this happened?
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Click to collapse
I didn't. I didn't notice there was something wrong with the device until I discovered the gaping hole.
I should probably send it in, but christ - I can't live without the Prime, I use it for EVERYTHING. :'(
SOPhishicated said:
It's kind of pointless posting pics now after I snapped it back in. I'm not going to attempt to simulate what happened. The gap before I snapped it in was almost a centimeter big.
"I'm not sure if you guys can see it. But there are miniscule gaps between the aluminum unit and the screen unit about a millimeter or two thick. This was AFTER I discovered that there was a gaping hole on the top of my Prime in which I promptly pressed the screen and snapped it back in. After a month of babying my Prime, I finally discover the physical imperfections of mine."
The gaps really do look bigger in real life. They're uneven as well. one side might be flush, the other might be gapping by 1-2mm.
Here I recorded a video of how my prime looks. The camera really downplays the gaps. You should watch it in 720p fullscreen to get a glimpse of what im talkin about.
http://www.youtube.com/watch?v=d0CwiR5VbEw&feature=youtu.be
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Click to collapse
Did you leave it in the heat or freezing temps at all? That is very lame that it is doing that. Definitely a workmanship problem and needs warranty.
Well my room is in the cold, frigid basement. But no heat, NYC winters are cold.
Think it's worth it to send it back? I cant decide. It shouldn't be too big of a problem functionality-wise .
Any thoughts or facts on this? i can't go naked because, well i drop the phone sometimes. We all know the OG gets hot after continuous use but i'm wondering if having a case on (mine is clear TPU) keeps the phone hotter than if case-less.
Found these;
http://lifehacker.com/5903080/should-i-use-a-case-on-my-phone
Heat: Nothing will kill your battery, slow down your phone, or burn a hole in your pocket quite like an overheating device, and a case is only going to exacerbate that issue. If your phone is prone to getting a little warm, wrapping it in a non-breathable case is not such a great idea. Photo by Justus Bluemer.
http://lifehacker.com/5828090/why-is-my-cellphone-burning-a-hole-in-my-pocket
Take it out of the case: This kind of goes in with the last one, but is something you can do in almost every overheating situation. If you have a case on your phone, take it off. Certain cases will insulate heat far more than others, and removing it could give your phone a chance to cool off a bit.
erwaso said:
Any thoughts or facts on this? i can't go naked because, well i drop the phone sometimes. We all know the OG gets hot after continuous use but i'm wondering if having a case on (mine is clear TPU) keeps the phone hotter than if case-less.
Click to expand...
Click to collapse
read those articles and it got me to thinking. I also had a little too much time on my hands at work this morning so I tested some things out.
First, since our phones don't have cooling fans, the only way to cool them is by ambient temperatures being lower than the phones temperature. So when they use the term "breathability" in those articles it is bit of a misused term in regards to how the phone cools down. If they were cooled based on airflow and the case restricted airflow, then yes, breathability is an issue. Also the phone and case themselves are both made out of non porous materials so technically nothing is really breathing. So for our devices it is more about heat transfer and direct cooling, so technically nothing is really breathing.
So I wanted to see if the case was transferring heat or not. I had my phone in the case in my pocket for an hour without using it and i used an infrared thermometer to check the temps. The outside of the case read around 81-82 degrees. I took the phone out of the case and checked the phones temperature and it was the same. I put the case back on and let it sit for 10 minutes in a 70 degree room and the temps dropped to 75 degrees and it read the same on the phone when I took it out again. So the case is transferring heat. I would be concerned if the outside of the case was cooler than the phone itself. Then there would be a problem.
My next step is going to be repeating this without the phone in the case at all.
Sent from my Optimus G using xda app-developers app
The case will have a measurable impact, dependent on the material, thickness, etc. However, similar to the RF transparency of the material, I'm not sure it would be noticeable in real life.
Several factors will also mitigate this, including the processor being near the camera (which is usually uncovered on a case), and also that the case normally only covers the back of the phone (which in this instance is the same material as the front).
So in short, my opinion is no, (but yes, a bit!)
I'd say the extra heat generated is less danger than one serious drop.
Sent from my LG-E970 using xda app-developers app
One of my cases I had made the phone overheat a lot more then it being naked. (it was the rubbery material and plastic two part case)
My new diztronic tpu case has been much better with heat though.
Sent from my Optimus G using Tapatalk 4 Beta
Was the overheating one the body glove by any chance?
Sent from my LG-E970 using xda app-developers app
Snow_fox said:
Was the overheating one the body glove by any chance?
Sent from my LG-E970 using xda app-developers app
Click to expand...
Click to collapse
No it was one of the cheap-o ones on ebay.
http://item.mobileweb.ebay.com/viewitem?index=0&sbk=1&nav=SEARCH&itemId=281045922178
Sent from my Optimus G using Tapatalk 4 Beta
I would have to say that it depends on the thermal conductivity of the case. If it has low thermal conductivity, the case would end up acting as an insulator and trap heat in. If it has high thermal conductivity, the case woul act as a heat sink and move heat away from the phone body.
Just my two cents.
NamDark said:
I would have to say that it depends on the thermal conductivity of the case. If it has low thermal conductivity, the case would end up acting as an insulator and trap heat in. If it has high thermal conductivity, the case woul act as a heat sink and move heat away from the phone body.
Just my two cents.
Click to expand...
Click to collapse
What lg could have done, was put an aluminum heatsink that had a thin fin that spread to all four sides of the phone that would dissipate the heat from the center. Then again, I haven't ripped my phone apart. It may have that already.
Sent from my Optimus G using Tapatalk 2
plaster said:
What lg could have done, was put an aluminum heatsink that had a thin fin that spread to all four sides of the phone that would dissipate the heat from the center. Then again, I haven't ripped my phone apart. It may have that already.
Sent from my Optimus G using Tapatalk 2
Click to expand...
Click to collapse
I've ripped it apart a few times, no fin, but there is enough clearance to do so, I might give that a shot just because.
Not sure of the potential interference to cell signal though..
Good idea regardless, even aluminum foil at that close proximity with maybe thermal compound or a pad would do more than nothing, in theory.
If you are concerned about trapping of heat, another option would be the stick on covers. The bodyguardz http://www.bodyguardz.com/armor-carbon-fiber-lg-optimus-g-p970.html seems like a possible option. More grip, less slip!
Of course the whole debate is ignoring the biggest issue, holding the device in your hand.
So I've come to the conclusion that using the new G2 would/ a case isn't an option. It just gets too frigging hot. That in mind. Do I want a hard shell or tpu case? I'm thinking a hard shell would be best. Trouble is, I'd like it to be as thin as possible. I'm using the high gloss case from Verizon now and it def helps, but I'd prefer something thinner...and less ugly, LOL.
I would agree heat kills batteries like no ones business
- but a saved screen from a drop with a solid case is worth the tradeoff imo.
Every phone case has a low thermal conductivity, cause all of them are obviously made of plastic having to absorb and to be elastic
---------- Post added at 05:48 PM ---------- Previous post was at 05:45 PM ----------
I think the simplest solution is to get a normal tpu cover and make holes in the back as much as you can to maintain the integrity of the cover, cause the main problem is to expose the phone but to keep it safe
Hello everyone.
I was looking for a non-damaging way for checking if the phone is still watertight with front glass cracked.
I supposed that increasing/decreasing the air pressure inside the phone and waiting how long it will stay deformed would be quite a good idea. (I understand that air-tight != water-tight)
To my surprise, blowing a compressed air into the microphone port causes to increase the pressure inside and deforms back panel, and then stays like this for a few seconds or more. (However I can't simply pump it with my mouth). Related video:
Then I tried to pump it and submerge in water to see where are potential leaking places. Here is the result (starts at 0:10):
It appears that most of the air goes through the microphone port, but there are also bubbles around panel, however the cracked screen seems tight.
My questions are:
1) Is it normal that you can pump the phone through microphone port like this and that the air comes out that quickly?
2) Should I improve the sealing of the back panel?
I'm not going to swim, just feel safer in case of rainy day or accidental splash.
Thanks in advance.
great vid. I'm a little bit surprised when I see the bubbles coming out when you did the waterproof test. I don't think that's supposed to happen.. but I believe it'll survive a rain and other watery splash. anyway does the phone functions normally after that? and how do you improve the sealing if I may know? thank you.
The phone seems fine. So far no problems occurred at all and I haven't seen any signs of moisture.
I assume that the sealing is made of heat-based glue, so I'll try heating edges (as you do before disassembly) and squeeze for some time. If that won't work, it would be necessary to take off the panel and replace the whole seal.
Okay, story time. Some time ago, the battery in my Z5c swelled up and pushed the battery cover off the back of the phone. I replace the battery myself, & also order new (supposedly OEM) adhesive for the back glass. It does NOT stick on well, popping off one side or the other every few minutes. After fighting it for a while (ordering additional replacement adhesive and trying to re-clean and re-apply it a couple more times), it seems to finally stay in place.
Fast-forward a few months. I see the back glass coming off again. Oh, great, here we go again. I peel it off, and find that the replacement battery is a *little* inflated. Not by much, and not nearly as much as the original battery, but even though it seems to barely be a problem, it's also clear that the battery cover is not skin-tight as it was when it went in. Perhaps it was "enough" that given the tolerances inside, it still managed to push the back glass off. Okay, fine: I bought 2 replacement batteries at the time, so I'll put the other one in.
Fast-forward another few months to a couple of weeks ago. SAME BLASTED THING. Battery barely inflated, back cover coming off, but not really 100% clear whether the battery *really* is the culprit, or whether this adhesive I keep buying is just crap, or if I'm not applying it correctly.
Well, this time I'm running into the same problem trying to re-apply it that I did the first time around: it simply Will. Not. Stay. Put. I've tried the usual tricks I have read about: namely, making sure everything is squeaky-clean, and warming up the adhesive before pressing the back glass onto the phone, and then giving it a little time to cure with something heavy on top of the phone (if I had some clamps, I might try to use those instead). It helps for a couple of hours, but then the back cover just comes RIGHT off again.
Here is my hypothesis: either my phone's chassis is was not quite up to manufacturing standards, or I keep re-assembling it wrong, or something along those lines, because the battery sticks up slightly above the surrounding black frame. And what I can see when the back first starts coming off is that it is slightly "bowing" a bit...the top and bottom are sunk slightly below the plastic frame, but the middle bows out to the point where it rises slightly ABOVE the plastic frame. It's as if either the battery is sitting too high inside the phone, or the frame around the battery is sitting too low.
I have tried taking it all apart again and putting it all back together, but no dice.
Has anybody ever experienced anything like this? It's super frustrating. It seems clearly like a design defect. I just wish I could understand how things are different right now vs. when it was originally assembled at the factory.
Right now I'm sitting here seriously thinking that maybe the answer to this is to layer TWO back adhesive stickers on top of each other, in order to raise the edges of the glass back up enough above the battery that the back won't bow out anymore...
Argh!
...oh, also: and are genuine Sony batteries REALLY this crap in terms of quality?? If so, they should be ashamed and should have recalled many of these phones. I have yet to run into a genuine Sony Z5c battery that doesn't have at least a small build-up of gases within the battery pack after a few short months of use. I have been shying away from third-party batteries by no-name companies, but at this point I'm thinking that those could only be worse if they managed to spontaneously burst into flames.
In case anybody else who is struggling with the same thing ever ends up stumbling across this in the future, I seem to have finally managed to successfully tackle this problem. I finally got more pre-cut adhesive in, and yes: at least in my case, stacking two of them on top of each other has done the trick. (It's not easy lining them up in order to apply them to each other, either...I can tell you that much.)
I don't know if maybe all the adhesive that is out on the market is not "genuine" Sony and so not built to the same spec (maybe the genuine article is much thicker?), or if my particular phone's manufacturing tolerances are just outside the norm (either the battery is sticking up farther than it should, or the edges of the frame are sunk in further than they should be), or what. But using 2 stacked on top of each other instead of 1 seems to be the perfect thickness, allowing for the back glass to remain flush with the plastic frame's edges while also remaining perfectly flat.
I can tell you that at least on my phone, this is still not enough to ensure a tight water seal (pressure sensor doesn't change with increasing outside pressure). But it's hard to know if that's due to the way the back is applied, or some other issue elsewhere that's entirely unrelated.
ARGH. Nope. It lasted a lot longer than previous attempts, but now the upper-left corner, where the camera lens is, is already starting to lift off again.
This is *such* a stupid design.
Try using B7000 industrial glue from Aliexpress or other vendors, it can still be unglued by heat if repairs are needed, but should stay glued better and longer then these precut adhesives which are low in quality...
Thanks for your thread. I can feel your frustration! I'm having problems with the flash LED making weird green shadows in photos (like here https://forum.xda-developers.com/t/camera-flash-bleed.3368004/) I was thinking about opening the back cover to try and fix this and maybe install a new battery and a new camera lens while I'm at it. But now I'm afraid to open it up. I am pretty sure that a this point all "original" replacement parts that are available are fake. Should I ever find the courage: Is the back cover and camera lens made from one piece or must they be replaced separately?
Try to get the OEM adhesive strips and battery.
3m makes all sorts of industrial double sided strips. Get the right thickness if you go that route.
Hi all,
My Z4 has started to shut itself down reasonably soon after booting, usually after starting and using apps and when reporting at high levels of battery charge. (haven't tested at lower battery levels)
Immediately after the tablet won't boot with the screen showing the low battery icon. Plugging the power back in will allow the unit to start up again and it generally runs when connected to power even if it is using more power that it is charging with.
This laptop is stock with the original Battery.
DO these system heavily suggest that the battery is nearly dead or more likely a seperate issue.
I am trying to decide if I should buy a new battery or throw the unit.
Get a battery... if you want to keep it.
Yes, this sounds like old battery.
But be aware, you will have to remove the screen to replace the battery. It is possible (did it myself), but risky to break the glass! Use adjustable heat gun and very thin spudger. (don't use this blue triangle spudger stuff that is offered frequently, this would bend the glas to much)
allofmex said:
Yes, this sounds like old battery.
But be aware, you will have to remove the screen to replace the battery. It is possible (did it myself), but risky to break the glass! Use adjustable heat gun and very thin spudger. (don't use this blue triangle spudger stuff that is offered frequently, this would bend the glas to much)
Click to expand...
Click to collapse
Yeah that will be tricky. Don't force it.
You can't use isopropyl alcohol either to soften the adhesive as it's a liquid crystal display. Any solvent can permanently poison LCD's if it makes contact with the edge of the display.
blackhawk said:
You can't use isopropyl alcohol either...
Click to expand...
Click to collapse
To be honest, I carefully used isopropyl alcohol without negative effects at the glass edges (without touching the display part). Nevertheless it did not really help to dissolve the glue.
Scraping with a plastic tool did it for me. But there should be a better solution, this was the most annoying part.
allofmex said:
To be honest, I carefully used isopropyl alcohol without negative effects at the glass edges (without touching the display part). Nevertheless it did not really help to dissolve the glue.
Scraping with a plastic tool did it for me. But there should be a better solution, this was the most annoying part.
Click to expand...
Click to collapse
Anhydrous Isopropyl alcohol is great for many things but each application is different and you need to use your best judgement when using it to avoid rude surprises.
The sides of a LCD aren't sealed; it's a permeable membrane. The liquid crystal layer is extremely sensitive to solvents. Even concentrated vapors can damage them.
I've built up prototype assemblies with these little buggers... hand soldering fine pitch flat packs is easier The LCDs always go on last.
Be careful...
allofmex said:
Yes, this sounds like old battery.
But be aware, you will have to remove the screen to replace the battery. It is possible (did it myself), but risky to break the glass! Use adjustable heat gun and very thin spudger. (don't use this blue triangle spudger stuff that is offered frequently, this would bend the glas to much)
Click to expand...
Click to collapse
Thank you, just bought one of the ifixit kits, but it sound like I may need a seperate spudger. Will also need a heat gun.
Evil-Santa said:
Thank you, just bought one of the ifixit kits, but it sound like I may need a seperate spudger. Will also need a heat gun.
Click to expand...
Click to collapse
You are welcome.
Hot plates are what the pros use but for a one shot deal it's overkill.
Hairdryers air volume is too high to be effective.
Get a good heat gun as they are useful.
If it has a no heat blower setting, use it to cool it off before shutdown.
Otherwise sit it down with the nozzle up. Sometimes the residual heat will melt the plastic impeller on cheaper ones.
Use a piece of cardboard to help contain the heat. Do not overheat the device...
Hi . I need to replace the battery of my Sony Z4 tablet . I live in Greece and i cannot find a new battery in order to do it. I have found battery for Sony Tablet S . Would it be compatible with my Z4? Any help would be appreciated. Thanks