Suppose you’re either a mobile technician or interested to see what’s happening inside the smartphone, iPhone 17 Air. This is a great place to start to understand the motherboard. Let’s look at what goes into the motherboard, and what parts did. Also, how can this information benefit you if you are working on repair and/or upgradation?
The iPhone 17 Air stands at the peak of Apple’s smartphone engineering, with its powerful A19 Pro CPU, advanced camera system, and skilled battery and thermal management. However, the one that really enables all these features is the heart-motherboard of any smartphone (also known as a logic board). Let’s plan breakdowns, major electronic components, and how to contribute to the imaginary performance and reliability of the iPhone 17 Air.
iPhone 17 Air Motherboard Details | Schematic
This image is a label component diagram of the iPhone 17 Air motherboard (Mainboard). It shows a complete breakdown of major hardware chips and connectors on the motherboard in Chinese and English. Marked components include:
- A19Pro CPU (Main Processor)
- Nand (storage/memory)
- Logic EEPROM
- Power management unit (PMU)
- Battery connector
- SIM card connector
- Charging IC
- Display and Touch connector
- Camera Supply IC (3.2V/6.0V, for AF)
- USB management IC
- Face ID PMIC
- Audio chips (small/big audio)
- GPS, Wi-Fi, Bluetooth, NFC module
- Performance IC
- Baseband chip (cellular communication)
- Wireless charging connector
- Flash LED controller
- WiFi/Bluetooth signal couplers
- Secondary PMU, BB Eeprom, Rose, PA, WTR (Various Power Emplifiers and Signal ICS)
The image above explains that, although there are some differences between the iPhone 17 Air and iPhone 17 Air motherboards, the identity resistors can be changed to be universally compatible. Why is This Important for Technicians?
For technicians, this kind of diagram is a roadmap. When a phone with a problem arrives, a technician uses layouts like this to find the part that needs attention, saving lots of time and effort. If your camera isn’t working, they know to check the Camera PMIC and supply lines. They focus on the Charging IC and Battery Connector if the phone isn’t charging.
Sometimes, two similar models (like iPhone 17 Air and Pro Max) will use slightly different motherboards. But, as highlighted in the image, changing the identification resistor can allow some parts to be compatible between models, making repairs easier.
What’s New on the iPhone 17 Air?
Revised Motherboard Layout: The redesigned iPhones have moved to a horizontal logic board at the top of the phones to maximize space for battery upgrades, which is a boon for battery life improvements. The new steel battery casing and vapor chamber heat dissipation keep the phone cool and reduce the likelihood of heat-related failures from the phone coming in contact with the user.
Easier Repairs: Apple keeps redesigning how batteries and other modules are fixed to the phone. These updated connections make it easier for technicians to remove the batteries and other components in the future, which is promising for easier repairs. There is even a battery removal form of removal that is electrically induced, which reduces issues with damage during removal and replacement.
Cutting-Edge Chip Designs: The upgraded A19 Pro CPU greatly enhances the device’s speed. There are also new Wi-Fi and Bluetooth chips that can take advantage of these enhanced speeds and capabilities, and every chip has been revised for improved performance.
