DIY case uses kitchen foil layers to cool the Sony Xperia Z3+, performance allegedly improved

DIY case uses kitchen foil layers to cool the Sony Xperia Z3+, performance allegedly improved
An XDA member has devised a simple DIY case that allegedly lowers the temperature of the Sony Xperia Z3+ and improves the overall performance of the handset.

As previously reported, the Snapdragon 810 and its overheating woes are causing, at least in some occasions, severe problems on the Sony Xperia Z3+. According to multiple user reports, CPU-intensive apps such as the camera cause the chip to overheat and force-close apps. Even when apps are not forcedly closed, the throttling mechanism impacts the overall performance after prolonged use.

Sony itself acknowledged the problems and promised to launch a software fixalthough some believe that this is a hardware problem that can only be solved by imposing even more aggressive throttling mechanisms. Until all of this clears out, XDA-Developers member schecter7 has devised a way of limiting the impact of CPU throttling by layering sheets of aluminum foil on the inside of a regular Xperia Z3+ case.

To determine the efficiency of this DIY case, schecter7 recorded the smartphone's performance and temperature with and without the foil in successive AnTuTu runs. The charts reveal a notable if not an impressive improvement. After 4 AnTuTu runs, performance dropped to 73.40% of the initial horsepower when the smartphone was not in the DIY case, and to 80% afterward. Take a look at the charts:

According to a second XDA member, copper foil works just as well, and this method also reduces temperatures while shooting 4K video.

Even if this method is actually efficient, isn't it a bit offensive to find yourself resorting to a DYI case with aluminum or copper foils just to use your smartphone as it was intended and marketed?

This time around, try extending your creativity past frying pan jokes. Gold is a digger's metal!

source: XDA via Xperia Blog



1. azalucel

Posts: 141; Member since: Dec 27, 2013

Its DIY as in do it yourself not dyi

8. My1cent

Posts: 370; Member since: Jan 30, 2014

A case filled with ice is enough!

17. pwnarena

Posts: 1129; Member since: Feb 15, 2013

it will cause misting/condensation on the glass so it's not really a good solution.

2. TezzaBP

Posts: 274; Member since: May 18, 2015

Do yourself it i do myself every night thanks :^)

3. kabiluddin

Posts: 276; Member since: Feb 28, 2015

LOL. Really stupid.

4. Clars123

Posts: 1078; Member since: Mar 16, 2015

It's a shame...I really hope they knock it out of the park with the Z5 because truth be told the Z3+ and Z4 are honestly pathetic.Is there any good news about this device anywhere?

5. RaKithAPeiRiZ

Posts: 1488; Member since: Dec 29, 2011

i also heard that wrapping it in foil , tossing in some boiled potatoes , onions and lemon juice and then putting it in a oven solves most of the camera issues as well

13. Ordinary

Posts: 2454; Member since: Apr 23, 2015

Instructions were unclear, got my Xperia stuck in oven

15. My1cent

Posts: 370; Member since: Jan 30, 2014

Misinterpretation! He didn't tell you to turn the oven on! But use it to heat things up inside the oven! :-)

6. T-Dizzle

Posts: 155; Member since: Jul 21, 2015

It's just a homemade heat sink.

7. JOHNNY8573

Posts: 48; Member since: Nov 11, 2013

and they want me to trust there judgement on a product?

9. Shocky unregistered

It's a new challenge. Snapdragon 810, who can tame the beast?!

10. Clars123

Posts: 1078; Member since: Mar 16, 2015

Xperia Z3+ : I hereby nominate the OnePlus 2 for the #Dragonslayer challenge

16. almostdone

Posts: 448; Member since: Sep 25, 2012

SD 810 and future SD models needs an internal fan. Imagine a small tiny whiny fan coming to your smartphone soon!

19. BaffledTruffle

Posts: 523; Member since: Dec 07, 2013

Killing it would be better though. I kinda hope they do well with 820, but I also want other manufacturers to get the spotlight.

11. Af1rPA

Posts: 712; Member since: Jun 12, 2014

I'd like see the benchmarks with it in a bowl of icy cold water.

12. mostafawael.1998

Posts: 241; Member since: Oct 01, 2014

HTC has tamed the dragon in the 2.10 update Really

14. carlemillward unregistered

I guess tinfoil will be the material of choice from now onwards. Move along leather and glass covered phones.

18. legiloca

Posts: 1676; Member since: Nov 11, 2014

I never knew an Oven would be cooler using a foil..

20. BaffledTruffle

Posts: 523; Member since: Dec 07, 2013

Such pretty phone to be covered with tin foil. Qualcomm will be the death of struggling OEM's if the next Snapdragon will snap its own neck.

21. tokuzumi

Posts: 1907; Member since: Aug 27, 2009

I'm sure this has no effect on signal strength.

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