Photos of Bare iPhone 5S Logic Board Surface, Slightly Narrower Than iPhone 5 Board [Updated]

As noted by Mac Otakara, Japanese parts firm Moumantai has posted three photos of what may be the bare logic board from the iPhone 5S. Unsurprisingly, the shape of the board is nearly identical to that of the iPhone 5 logic board, although it appears to have a slightly different curve along the bottom edge where the logic board would meet the speaker enclosure.

iphone_5s_5_logic_boards_front

Front of claimed iPhone 5S logic board compared to iFixit's iPhone 5 logic board photo

Few details can be obtained from the part, as there are no chips or other components attached to the board, although it does contain a somewhat different placement of screw holes and a tweaked chip layout. The main A-series chip appears as if it will be slightly larger in area than the A6 seen in the iPhone 5, as it takes up a greater width of the logic board.

iphone_5s_5_logic_board_rear

Rear of claimed iPhone 5S logic board compared to iFixit's iPhone 5 logic board photo

Apple's iPhone 5S is expected to launch later this year, perhaps around the September timeframe. Following Apple's pattern of two-year body style cycles, the iPhone 5S will reportedly appear very similar to the iPhone 5 and focus on internal improvements. One differentiating feature may, however, be a fingerprint sensor, which is rumored to be location on or near the device's home button.

Update 8:32 AM: As noted in our forums by chrmjenkins, the logic board may actually be slightly narrower than on the iPhone 5, meaning that the main A-series chip may be the same size as the A6 in the iPhone 5.

I think the logic board has gotten narrower. Notice how the A6 has room for a triple row of caps to its left? The new logic board only has room for a single row (caps being placed longways, granted). Also, the back of the iPhone 5 logic board has the Hynix memory module spanning the whole board. Now since the board is thinner, it's been forced to rotate 90 degrees to fit since it's longer than it is wide.

Related Forum: iPhone

Popular Stories

New Things Your iPhone Can Do in iOS 18

18 New Things Your iPhone Can Do in iOS 18.2

Wednesday November 13, 2024 2:09 am PST by
Apple is set to release iOS 18.2 next month, bringing the second round of Apple Intelligence features to iPhone 15 Pro and iPhone 16 models. This update brings several major advancements to Apple's AI integration, including completely new image generation tools and a range of Visual Intelligence-based enhancements. There are a handful of new non-AI related feature controls incoming as well....
M4 MacBook Pros Thumb

M4 MacBook Pro Uses Quantum Dot Display Technology

Thursday November 14, 2024 4:19 pm PST by
The M4 MacBook Pro models feature quantum dot display technology, according to display analyst Ross Young. Apple used a quantum dot film instead of a red KSF phosphor film, a change that provides more vibrant, accurate color results. Young says that Apple has opted for KSF for prior MacBook Pro models because it doesn't use toxic element cadmium (typical for quantum dot) and is more...
AirPods Crackling Feature

Apple Customers Sue Over Unfixed AirPods Pro Crackling Issue

Wednesday November 13, 2024 11:01 am PST by
A trio of Apple customers this month filed a class action lawsuit against Apple, accusing the Cupertino company of violating California consumer protection laws and false advertising for continuing to sell AirPods Pro models that had ongoing issues with crackling or static sounds. A few months after the AirPods Pro came out in October 2019, buyers began to complain about crackling, rattling, ...
google gemini

Google Releases Standalone Gemini AI App for iPhone

Thursday November 14, 2024 2:54 am PST by
Google has launched its dedicated Gemini artificial intelligence app for iPhone users, expanding beyond the previous limited integration within the main Google app. The standalone app offers enhanced functionality, including support for Gemini Live and iOS-specific features like Dynamic Island integration. The new app allows iPhone users to interact with Google's AI through text or voice...
iphone passcode green

iOS 18 Security Feature Causes iPhone to Reboot After Three Days of Inactivity

Thursday November 14, 2024 2:19 pm PST by
With iOS 18, Apple introduced a feature that causes the iPhone to reboot every three days, security researchers have confirmed (via TechCrunch). In a demo video, security researcher Jiska Classen proved that an iPhone left untouched for 72 hours will automatically restart, and Graykey manufacturer also Magnet Forensics wrote a blog post about the feature. After a reboot, an iPhone is more...
maxresdefault

M4 Max MacBook Pro: Real-World Usage Tests

Wednesday November 13, 2024 11:59 am PST by
Apple last week replaced the M3 Max MacBook Pro with the new M4 Max MacBook Pro, and we picked up one of the new high-end MacBook Pro machines to see how it compares to the prior model with both benchmarks and real-world tests. We tested an M4 Max with a 16-core CPU, 40-core GPU, and 48GB RAM against an M3 Max MacBook Pro with similar specs. The two machines look similar, but the display on...

Top Rated Comments

Four oF NINE Avatar
149 months ago
Need more GB, instead of quad core.

Add 128 GB, delete 16 GB, maintain current price points.
Score: 17 Votes (Like | Disagree)
Jsameds Avatar
149 months ago
Who cares, it will be running iOS 7 which is garbage! #BoycottiOS7
Weird, I'm sure Apple made improvements in virtually every single aspect of iOS 7 over iOS 6, and I'm also sure I logged into MacRumors, not twitter.

Must be my computer playing up. Restarting now...
Score: 13 Votes (Like | Disagree)
Rogifan Avatar
149 months ago
Weird, I'm sure Apple made improvements in virtually every single aspect of iOS 7 over iOS 6, and I'm also sure I logged into MacRumors, not twitter.

Must be my computer playing up. Restarting now...

Haha amazing to see how many people now seem to care about form over function when usually they're complaining about Apple doing the same thing. For me quick access to common settings and better multitasking > design of app icons.
Score: 9 Votes (Like | Disagree)
chrmjenkins Avatar
149 months ago
Lots of possibilities here. Assuming they're moving to 28nm, it definitely means they're adding stuff if it's getting bigger.

Possibilities:

* Rogue family GPU. Die size is unknown for this family so it may well be a reason for increase.
* Quad core. Apple may have optimized iOS 7 and its APIs for a true quad core environment.
* Shadow core. Apple could be implementing a Tegra-like solution with a simplified, slower core that powers up to take care of simple tasks like notifications. Only when the user is fully using the phone do the faster cores turn on.
* big.LITTLE. This is kind of like the shadow core, except it's an actual ARM concept supported directly in their architecture and ISA. Since swift cores are custom, it would be a little different for apple, but it may still be possible for them to use two A7 cores (custom or not) to match their Swift cores for low power operation. It's also possible they've adapted a single A7 core into a shadow core. (*currently ARM's big.LITTLE concept requires the number of A7 cores to match the number of main cores, which is why there is an octa core Samsung Exynos part. Apple may or may not try to break from this restriction)
* Custom circuitry. The redesigned A5 for the appleTV had a lot of custom analog circuitry. It's possible Apple could be going even more custom on the A7 design, which could cause a size increase. They could also be moving off component chips on chip to reduce the overall number of components on the board.


All that being said, I think the premise of the article is wrong. I think the logic board has gotten narrower. Notice how the A6 has room for a triple row of caps to its left? The new logic board only has room for a single row (caps being placed longways, granted). Also, the back of the iPhone 5 logic board has the Hynix memory module spanning the whole board. Now since the board is thinner, it's been forced to rotate 90 degrees to fit since it's longer than it is wide.
Score: 9 Votes (Like | Disagree)
vmachiel Avatar
149 months ago
Why do we need quad core? Those swift cores in A6 are a great balance in power and battery life I think.

We'll see I guess
Score: 9 Votes (Like | Disagree)
Thunderhawks Avatar
149 months ago
Why do we need quad core? Those swift cores in A6 are a great balance in power and battery life I think.

We'll see I guess

Need more GB, instead of quad core.
Score: 8 Votes (Like | Disagree)