or Connect
AppleInsider › Forums › Mobile › iPad › Retina iPad mini teardown reveals larger battery, display supplied by LG
New Posts  All Forums:Forum Nav:

Retina iPad mini teardown reveals larger battery, display supplied by LG

post #1 of 47
Thread Starter 
A breakdown of Apple's second generation 7.9-inch tablet shows some slight adjustments to its construction and marginally less powerful components than its larger sibling, the iPad Air.

Retina iPad mini teardown


The Retina display-equipped iPad mini features a new 2-cell, 24.3 watt-hour battery design, compared to the single cell, 16.5 watt-hour part found in its predecessor, according to repair firm iFixit. The larger battery mitigates the increased power consumption of the new Retina display and is the likely cause of the new iPad mini's extra 0.3 millimeters of girth.

Apple's latest A7 processor has also been ported to the new slate. The iPad mini's chip is the same 1.29 gigahertz model found in the iPhone 5s, rather than the beefier 1.4 gigahertz variant that ships with the iPad Air.

Retina iPad mini teardown


Like the iPad Air, the new mini sports a 2048-by-1536-pixel resolution on its Retina display, and is driven by a similar Parade-manufactured LCD driver. The mini also borrows the separate LCD and digitizer configuration found in Apple's other tablets.

Also like the iPad Air, USI appears to have replaced Murata as the supplier for the iPad mini's Wi-Fi controller chip. The move is likely related to the tablets' use of MIMO, or muliple-input, multiple-output, Wi-Fi technology.

Retina iPad mini teardown


Finally, the logic board layout has been slightly altered. What used to be a patch of blank PCB in the Wi-Fi only models -- where the cellar radios would be in the cellular-equipped variant --?is now a cut out in the shape of a rounded rectangle. iFixit speculates this change may be a play to reduce as much weight as possible in order to compensate for the larger battery and Retina display.

A list of chips found soldered to the Retina iPad mini's logic board:

  • Apple A7
  • Elpida F8164A1PD 1 GB LPDDR3 DRAM
  • Apple M7
  • Toshiba THGBX2G7B2JLA01 16 GB NAND flash
  • B334 STMicro MEMS accelerometer/gyroscope
  • Apple 338S1213 Cirrus Audio Codec
  • Apple 338S1199 Audio Amplifiers
  • Apple 343S0656-A1 Dialog Power Management IC
  • Fairchild Semiconductor FDMC6676BZ and FDCM6683 MOSFETs
post #2 of 47
Even the internals have rounded rectangles!

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply
post #3 of 47
Quote:
Originally Posted by AppleInsider View Post

Apple's latest A7 processor has also been ported to the new slate.

why are you calling it a slate? has apple ever called it a slate? do you know what a slate is?
"Personally, I would like nothing more than to thoroughly proof each and every word of my articles before posting. But I can't."

appleinsider's mike campbell, august 15, 2013
Reply
"Personally, I would like nothing more than to thoroughly proof each and every word of my articles before posting. But I can't."

appleinsider's mike campbell, august 15, 2013
Reply
post #4 of 47
For some of the components inside, there might be slight mfg differences since Apple likes to have a couple of suppliers whenever possible, so it's very possible that some component mfg might change.
post #5 of 47
1) I don't think it's most accurate to call the A7 in the iPad Air "beefier" since it's the same chip. I'd simply say the iPad Air's chip is faster or the iPad Mini's chip is clocked lower.

2) I'm surprised Apple isn't fusing the displays and glass together to allow it to be thinner and make it better for outdoor use. If this was done it may have beaten the Kindle Fire HDX in that one display shoot out.

3) I don't recall the iPad Mini getting WiFI MIMO during the event, only the iPad Air. Good news if that's the case.

4) Does that really save enough weight per unit to make a difference? Could there be another reason, like recycling that material which could make a difference when added to many millions of units?

post #6 of 47

No IGZO on this, yet it is on the iPad Air.  That will lead to more improvements once they add that- I wonder if they'll add it as production slows for both the Air and Mini

 

Quote:
Originally Posted by akqies View Post

I'm surprised Apple isn't fusing the displays and glass together to allow it to be thinner and make it better for outdoor use. If this was done it may have beaten the Kindle Fire HDX in that one display shoot out.
 

I'm surprised about this also.  They do it for the iPhone, but not the iPad Air or Mini.  It would not only be a slightly better pricture (with no air space), but it would also be a hair thinnei


Edited by Andysol - 11/13/13 at 8:05am

2014 27" Retina iMac i5, 2012 27" iMac i7, 2011 Mac Mini i5
iPad Air 2, iPad Mini 2, iPhone 6 Plus, iPhone 6, iPod Touch 5
Time Capsule 5, (3) AirPort Express 2, (2) Apple TV 3

Reply

2014 27" Retina iMac i5, 2012 27" iMac i7, 2011 Mac Mini i5
iPad Air 2, iPad Mini 2, iPhone 6 Plus, iPhone 6, iPod Touch 5
Time Capsule 5, (3) AirPort Express 2, (2) Apple TV 3

Reply
post #7 of 47

"extra 0.3 millimeters of girth."  I don't think you know what girth means.  Thickness and girth are two different measurements.

post #8 of 47
Quote:
Originally Posted by Andysol View Post

No IGZO on this, yet it is on the iPad Air.  That will lead to more improvements once they add that- I wonder if they'll add it as production slows for both the Air and Mini.

I don't think the IGZO question has been answered yet for the mini. So far it's only Raymond Soneira who's said the Air uses IGZO. It's like everybody is afraid of approaching the subject. Gruber won't touch it, Dilger does no diligence, Elmer-DeWitt, pftt! Very strange, these journalists.
post #9 of 47

​I think of all Apple products, iPad Mini Retina might have the highest value for money. I wonder what's the margin.

post #10 of 47
Quote:
Originally Posted by MacAir View Post
 

Where's Samsung? That's some fantastic news.

And LG on screens.

Apple A7

2014 27" Retina iMac i5, 2012 27" iMac i7, 2011 Mac Mini i5
iPad Air 2, iPad Mini 2, iPhone 6 Plus, iPhone 6, iPod Touch 5
Time Capsule 5, (3) AirPort Express 2, (2) Apple TV 3

Reply

2014 27" Retina iMac i5, 2012 27" iMac i7, 2011 Mac Mini i5
iPad Air 2, iPad Mini 2, iPhone 6 Plus, iPhone 6, iPod Touch 5
Time Capsule 5, (3) AirPort Express 2, (2) Apple TV 3

Reply
post #11 of 47
Quote:
Originally Posted by Flaneur View Post


I don't think the IGZO question has been answered yet for the mini. So far it's only Raymond Soneira who's said the Air uses IGZO. It's like everybody is afraid of approaching the subject. Gruber won't touch it, Dilger does no diligence, Elmer-DeWitt, pftt! Very strange, these journalists.

Why is everyone so obsessed over IGZO?  I love my Air.  Screen looks great and battery life is awesome.  I could care less if it's IGZO or not.

post #12 of 47

Bottom line:

 

Air has slightly better screen

Slightly faster CPU

slightly longer battery life

 

Makes sense since it is $100 more expensive.

Apple Purchases last 12 months - iPhone 5S (two), iPhone 6, iPhone 6+ (two), iPadAir, iPadAir2, iPadMini2, AppleTV (two), MacMini, Airport Extreme, iPod Classic.
Reply
Apple Purchases last 12 months - iPhone 5S (two), iPhone 6, iPhone 6+ (two), iPadAir, iPadAir2, iPadMini2, AppleTV (two), MacMini, Airport Extreme, iPod Classic.
Reply
post #13 of 47
Quote:
Originally Posted by Flaneur View Post

I don't think the IGZO question has been answered yet for the mini. So far it's only Raymond Soneira who's said the Air uses IGZO. It's like everybody is afraid of approaching the subject. Gruber won't touch it, Dilger does no diligence, Elmer-DeWitt, pftt! Very strange, these journalists.

I find that funny. For one thing, it was this pink unicorn among haters for months. If the Air is indeed using IGZO, then you can't tell the difference, and of course it didn't help Apple win any display contests. Kind of like all these people who apologize for the Surface Pro saying "nobody in their right mind would buy one because they're waiting for some (insert future Intel code name here) chip" that was supposed to fix whatever deficiencies existed in the Surface Pro. Hilarious. The tech world is full of pink unicorns for the gadget geeks to wait for. Always waiting... Meanwhile, people are using their iPad Airs and getting lots of value out of them.

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply
post #14 of 47
Quote:
Originally Posted by Rogifan View Post

Why is everyone so obsessed over IGZO?  I love my Air.  Screen looks great and battery life is awesome.  I could care less if it's IGZO or not.

It's a pink unicorn to focus attention on some supposed deficiency in the iPad. Very common meme among haters and trolls. "The iPad doesn't have _______!"

I'm surprised they aren't saying they're "disappointed" the iPad doesn't have the non-existent A7X chip, because if it did, it would be so much "better." Oh wait, I think they did say that... 1smile.gif

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply
post #15 of 47
Should market it as 100% Samsung-free!
A.k.a. AppleHead on other forums.
Reply
A.k.a. AppleHead on other forums.
Reply
post #16 of 47
Quote:
Originally Posted by Robin Huber View Post

Should market it as 100% Samsung-free!

Samsung manufactures the A7 processor…the brains of the device.

post #17 of 47
Quote:
Originally Posted by hillstones View Post

Samsung manufactures the A7 processor…the brains of the device.
Okay, then 90% Samsung-free. (Depending upon how you measure it–by weight, cost, volume, etc.).
A.k.a. AppleHead on other forums.
Reply
A.k.a. AppleHead on other forums.
Reply
post #18 of 47
has anyone seen that the iPad mini (non-retina) is now listed as having a 23.4W battery by Apple??
Did Apple increase the battery?
Or is it typo?
post #19 of 47
Quote:
Originally Posted by Flaneur View Post

I don't think the IGZO question has been answered yet for the mini. So far it's only Raymond Soneira who's said the Air uses IGZO. It's like everybody is afraid of approaching the subject. Gruber won't touch it, Dilger does no diligence, Elmer-DeWitt, pftt! Very strange, these journalists.

I know Soneira is considered an "expert" but there is something about all his tests and writings that make me question his claims that it's actually IGZO.

Quote:
Originally Posted by Rogifan View Post

Why is everyone so obsessed over IGZO?  I love my Air.  Screen looks great and battery life is awesome.  I could care less if it's IGZO or not.

It has plenty of value as a technology, just like we were wanting IPS over TN when the iPhone 3GS and 2011 MBPs had it. If including indium gallium zinc oxide allows for faster refresh, higher resolution displays (for the cost), lower power use, more backlight through more transparent transistors, and a better overall display then why not want it?

Quote:
Originally Posted by sog35 View Post

Bottom line:

Air has slightly better screen
Slightly faster CPU
slightly longer battery life

Makes sense since it is $100 more expensive.

The cost comes from a larger display (even though somewhat offset by a lower cost per square inch due to the less dense PPI), larger backlight, larger battery, larger casing, larger box and materials which additionally take up more space for shipping and storing and add more weight for shipping (although this may be less per cubed inch due to the extra box space), and possibly some different components that are either more costly for various reasons, like the potential for larger stereo speakers.
post #20 of 47
Quote:
Originally Posted by MacAir View Post

Looks like you are trying to give Samsung credit for the A7. Don't, they have 0.
They have credit for making what they are told to make faster than the others.

Giving Samsung credit for the A7 is like Foxconn credit for the iPhone. They are build what Apple designed. Samsung is skilled at fabbing the necessary number of chips but that is where it ends.
post #21 of 47
Quote:
Originally Posted by Andysol View Post
 

No IGZO on this, yet it is on the iPad Air.  That will lead to more improvements once they add that- I wonder if they'll add it as production slows for both the Air and Mini

 

iFixit are not equiped to tell if a screen is IGZO or LTPS or anything else. They didnt identify the ipad air has being IGZO either. Since its impossible to used a normal LCD with half the leds, that screen will reveal it to be either IGZO or LTPS when properly analyse.

post #22 of 47
Quote:
Originally Posted by hillstones View Post

Samsung manufactures the A7 processor…the brains of the device.
They don't design it though.
post #23 of 47

So 1GB external DRAM and A7 has 1GB internal DRAM, does this mean the mini is using a full 2GB?

 

<EDIT> just found out on Wikipedia, Ipads use different A7 without POP stacked DRAM.


Edited by patpatpat - 11/13/13 at 10:43am
post #24 of 47
Quote:
Originally Posted by Suddenly Newton View Post

 If the Air is indeed using IGZO, then you can't tell the difference, and of course it didn't help Apple win any display contests.

 

Since an advanced display tech is the reason the ipads are so light and consume a lot less power, you DO see the difference. Maybe its why Apple didnt even mention it, because, the end results is what counts.

 

That being said, there is no way in hell you can pack the ipad mini retina screen into that container unless you used some kind of advance display tech. Something was used (IGZO, LTPS, ...), you cant just take a normal LDC and cut half of it's leds.

post #25 of 47
Quote:
Originally Posted by Suddenly Newton View Post

I find that funny. For one thing, it was this pink unicorn among haters for months. If the Air is indeed using IGZO, then you can't tell the difference, and of course it didn't help Apple win any display contests. Kind of like all these people who apologize for the Surface Pro saying "nobody in their right mind would buy one because they're waiting for some (insert future Intel code name here) chip" that was supposed to fix whatever deficiencies existed in the Surface Pro. Hilarious. The tech world is full of pink unicorns for the gadget geeks to wait for. Always waiting... Meanwhile, people are using their iPad Airs and getting lots of value out of them.

You remind me of Ballmer and the BlackBerry guys when confronted with the touch screen. The paradigm has changed underneath your nose and you don't even know it.

IGZO has 20 to 50 times the electron mobility of amorphous silicon, that should tell you all you need to know. Actually you also need a tiny bit of imagination (think about the move from discrete components to large-scale integrated circuits 50 years ago.) The point is that physics, chemistry and crystallography have progressed to the point where we can move beyond silicon. Apple sees this as an opportunity for higher res screens for 4K without a battery penalty, so they have invested heavily in it.

The junk in the heads of the haters has nothing to do with reality, and I think you should distance yourself from two-bit clichés like "pink unicorns."

Edit: A little detoning, plus note akqies and herbapou comments above.
Edited by Flaneur - 11/13/13 at 10:50am
post #26 of 47
Quote:
Originally Posted by Suddenly Newton View Post


It's a pink unicorn to focus attention on some supposed deficiency in the iPad. Very common meme among haters and trolls. "The iPad doesn't have _______!"

I'm surprised they aren't saying they're "disappointed" the iPad doesn't have the non-existent A7X chip, because if it did, it would be so much "better." Oh wait, I think they did say that... 1smile.gif

 

I read a negative review the other day (which google pulled up as "news" on Google now- first time it's ever pushed an Apple review to me) and basically concluded the iPad Air was a disappointment because it didn't have wireless AC and touch ID. Hilarious, since i bet a very TINY percentage of people even have an ac router or would even benefit from the speeds, and Touch ID is something that we did not know existed until a couple months ago. But suddenly, we expect and feel entitled to have it on every single Apple product. 

post #27 of 47
"The iPad mini's chip is the same 1.29 gigahertz model found in the iPhone 5s, rather than the beefier 1.4 gigahertz variant that ships with the iPad Air. "

I hope Apple retains the same size for their logic board for a long time to come.
Some where in future; I just swap it out when is 2 or 3 times faster.
post #28 of 47
Quote:
Originally Posted by sog35 View Post
 

Bottom line:

 

Air has slightly better screen

Slightly faster CPU

slightly longer battery life

 

Makes sense since it is $100 more expensive.

 

But the mini has a much higher pixel density.

post #29 of 47
Quote:
Originally Posted by hillstones View Post

Samsung manufactures the A7 processor…the brains of the device.

Don't worry. As soon as rumors of premature A7 failures hits the web, the haters will call it an Apple A7 chip. That's an unwritten rule in the forums, and I expect you all to follow it. 1wink.gif

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply
post #30 of 47
Quote:
Originally Posted by herbapou View Post

That being said, there is no way in hell you can pack the ipad mini retina screen into that container unless you used some kind of advance display tech. Something was used (IGZO, LTPS, ...), you cant just take a normal LDC and cut half of it's leds.

I would agree that there is a possibility but I can't agree that there is no way in hell it isn't. I think it's possible that they could have used other components to reduce power draw to make the YoY release of the iPad Air so much lighter than the 4th gen iPad. Moving to a single backlight and to Rogue 6 might be enough to allow the seen reduction in battery size. Add to that more efficient chips across the board, including lower-power RAM and I don't think it's impossible that IGZO or LTPS wasn't used this time.
post #31 of 47
Quote:
Originally Posted by Flaneur View Post

IGZO has 20 to 50 times the electron mobility of amorphous silicon, that should tell you all you need to know. Actually you also need a tiny bit of imagination (think about the move from discrete components to large-scale integrated circuits 50 years ago.) The point is that physics, chemistry and crystallography have progressed to the point where we can move beyond silicon. Apple sees this as an opportunity for higher res screens for 4K without a battery penalty, so they have invested heavily in it.

The junk in the heads of the haters has nothing to do with reality, and I think you should distance yourself from two-bit clichés like "pink unicorns."

My comment is not a slam against IGZO or any buzzword technology itself. It's about the nature behind people who exalt the supposed benefits of some new tech buzzword, whether real or imagined (usually imagined or exaggerated), then use the lack of it as an excuse to slam Apple products, and/or hilariously defend a competitor's product. Now if its some feature you genuinely want, then that's fine, but most people only THINK they know how some buzzword tech will benefit them. The A7X is the perfect example of that: it doesn't even exist, and there are no benchmarks to compare, but people were "disappointed" about the iPad not having it. That's ridiculous. And a very glass-half-empty way to look at products.

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply

"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
Reply
post #32 of 47
We are not talking about buzzwords, you are. If you look into it a bit, you may see that it is a fundamental shift in solid state electronics.

When implemented, it's somewhere between the shift from CRT to LCD monitors and the shift from buttons to touchscreens in importance. It will be huge for mobile electronics.

Buzzwords schmuzzwords. Forget what other people are saying. That's gossip. Think for yourself.
post #33 of 47
Quote:
Originally Posted by MacAir View Post
 

Looks like you are trying to give Samsung credit for the A7. Don't, they have 0.

They have credit for making what they are told to make faster than the others.

Apparently, you have no idea what the word "manufacture" means.  Apple designed the chip and they retained Samsung to make it for them.  Apple does not manufacture any of the chips in their devices, they use and need other companies' products.  So Samsung does get credit for being the company to manufacture the A7 for Apple.  You many not like their phones, but Samsung makes the best TVs.  Although the latest Panasonic plasma series might give them a run for their money.

post #34 of 47
Quote:
Originally Posted by akqies View Post

I would agree that there is a possibility but I can't agree that there is no way in hell it isn't. I think it's possible that they could have used other components to reduce power draw to make the YoY release of the iPad Air so much lighter than the 4th gen iPad. Moving to a single backlight and to Rogue 6 might be enough to allow the seen reduction in battery size. Add to that more efficient chips across the board, including lower-power RAM and I don't think it's impossible that IGZO or LTPS wasn't used this time.

Well display mate and other sites confirms the amount of leds was cut in half. Only display mate, which afe experts at this btw, confirmed the screen is IGZO. It would be nice indeed to have confirmation from another source.

Other components contribute to the lower power consumption, but the display is the bulk of the savings.
post #35 of 47
Quote:
Originally Posted by sog35 View Post
 

Bottom line:

 

Air has slightly better screen

Slightly faster CPU

slightly longer battery life

 

Makes sense since it is $100 more expensive.

Air has bigger screen too... that justifies the $100 difference...

I Want My iOS UI Like in Apple Watch"
Reply
I Want My iOS UI Like in Apple Watch"
Reply
post #36 of 47
Quote:
Originally Posted by Suddenly Newton View Post

Don't worry. As soon as rumors of premature A7 failures hits the web, the haters will call it an Apple A7 chip. That's an unwritten rule in the forums, and I expect you all to follow it. 1wink.gif

This is all too true.
post #37 of 47
Quote:
Originally Posted by MacAir View Post
 

The A7 isn't a samsung product. Samsung has nothing to do with the design, power, efficiency of the a7.

 

 

Not entirely true...

 

Firstly the highly efficient ARMv8-A instruction set is designed by ARM not apple.

 

And secondly...

 

Samsung's 28nm low power High-K Metal Gate Process is built on two years of development and successful high-volume production of the 32nm LP HKMG process and is designed for a remarkably simple migration path. The 28nm process is a gate-first High-K Metal Gate process which enables it to deliver significant performance while maintaining low power, making it ideal for mobile applications. A variant of the process, 28nm LPH HKMG, offers even greater power savings or performance boost beyond 2GHz. 28LP process is ideal for mobile applications where the low standby power is crucial, the high performance 28LPH process is a solution for more performance oriented applications that require extremely high performance incorporated with high energy efficiency. It boasts more than 20% speed over 28LP at the same standby power.

post #38 of 47
Quote:
Originally Posted by patpatpat View Post
 

Not entirely true...

 

Firstly the highly efficient ARMv8-A instruction set is designed by ARM not apple.

 

And secondly...

 

Samsung's 28nm low power High-K Metal Gate Process is built on two years of development and successful high-volume production of the 32nm LP HKMG process and is designed for a remarkably simple migration path. The 28nm process is a gate-first High-K Metal Gate process which enables it to deliver significant performance while maintaining low power, making it ideal for mobile applications. A variant of the process, 28nm LPH HKMG, offers even greater power savings or performance boost beyond 2GHz. 28LP process is ideal for mobile applications where the low standby power is crucial, the high performance 28LPH process is a solution for more performance oriented applications that require extremely high performance incorporated with high energy efficiency. It boasts more than 20% speed over 28LP at the same standby power.

 

Sounds great and all. But with all those buzzwords, and yet the fact remains that Samsung doesn't even have enough faith in their own chips to use them in their own, flagship devices. Why is that? I'll defer to anandtech's opinion on this, who after an indepth analysis, concluded that there's nothing out there that comes close to comparing to the A7.

post #39 of 47
Quote:
Originally Posted by Slurpy View Post
 

 

Sounds great and all. But with all those buzzwords, and yet the fact remains that Samsung doesn't even have enough faith in their own chips to use them in their own, flagship devices. Why is that? I'll defer to anandtech's opinion on this, who after an indepth analysis, concluded that there's nothing out there that comes close to comparing to the A7.

Yeah but they make great flat screen TV's. What's your point, Samsung Semiconductor is not controlled/staffed by their Mobile engineers, they're effectively 2 completely separate units. 

post #40 of 47
Quote:
Originally Posted by patpatpat View Post

Not entirely true...

Firstly the highly efficient ARMv8-A instruction set is designed by ARM not apple.

And secondly...

Samsung's 28nm low power High-K Metal Gate Process is built on two years of development and successful high-volume production of the 32nm LP HKMG process and is designed for a remarkably simple migration path. The 28nm process is a gate-first High-K Metal Gate process which enables it to deliver significant performance while maintaining low power, making it ideal for mobile applications. A variant of the process, 28nm LPH HKMG, offers even greater power savings or performance boost beyond 2GHz. 28LP process is ideal for mobile applications where the low standby power is crucial, the high performance 28LPH process is a solution for more performance oriented applications that require extremely high performance incorporated with high energy efficiency. It boasts more than 20% speed over 28LP at the same standby power.

In no way does that make ARM or Samsung own Apple's A7. While the A7 couldn't exist with ARM existing, which Apple no longer is a apart of, Apple could make the A7 on a larger node than what Samsung offers. It wouldn't be as power efficient or as smaller but that doesn't mean Samsung owns the A7 because they have the best large scale 28nm process for ARM chips, the same way that without Foxconn Apple couldn't produce nearly as many iPads but in no way does that make the iPad a Foxconn product.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: iPad
  • Retina iPad mini teardown reveals larger battery, display supplied by LG
AppleInsider › Forums › Mobile › iPad › Retina iPad mini teardown reveals larger battery, display supplied by LG