Hardware

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Delve into the physical components of Apple devices, including processors, memory, storage, and their interaction with the software.

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Confused by what is allowed for System Level Apple Watch Bluetooth Connection. Does it require MFi or are there only some BLE chips allowed?
Hello. I am building a BLE device that is Activity Fitness based and would like a "System Level" BLE connection on WatchOS using an ESP32 (I have built a test of this on the firmware side). Meaning I do not want my iOS app to pass the BLE connection to the WatchOS app. It seems like these App Level connections do not get as many background updates as a System Level connection, and also requires the WatchOS app to be launched to connect to the BLE device The System Level BLE connection (WatchOS Settings > BLE > Health Devices) allows for auto connection in the background, and gets more reliable background communication between the BLE device and the Apple Watch On the Apple MFi Page it only mentions iOS: From Apple MFi Page: :: Who does NOT need to join - Developers and manufacturers of accessories that connect to an Apple device using only Bluetooth Low Energy, Core Bluetooth, or standard Bluetooth profiles supported by iOS Does this apply to WatchOS as well? So, if I am making an BLE device that is Activity Based, and has one of the allowable Health Device UUIDs, is the BLE System Connection allowed using any BLE chip? Including say an ESP32 I have built a test BLE firmware that is a Health Device UUID, and the WatchOS sees it as a health device Is this fine then? No need for MFi application and also no need to worry about which BLE chip is used? thanks
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May ’25
Is it possible to communicate with peripherals through the TypeC port of Apple 15 or above mobile phones?
I need to implement an app that exchanges data with peripherals through TypeC on Apple 15 phones, but I have two questions that I need to ask for help: Which library is used to communicate with peripherals through the TypeC port of the Apple mobile phone? Do peripherals need to pass MFi authentication before they can communicate with the App?
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Jun ’25
How can I get a cover-art image via Bluetooth BIP
I want to get Cover-Art Image over Bluetooth. From the SDP Discover iPhoneSE, it support Cover-Art Feature. I connect and config OBEX Channel with L2CAP ERTM, it is successful. I send connect_request the OBEX Connect, the iPhone always no any response, and l2cap s-frame response from iPhone always failed. From the Apple Developer, it need Apple Authentication Chip. Is it still necessary now? Are there any other ways to obtain album pictures?
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Jun ’25
Unable to Save Edited Word Files After Installing macOS 26 Beta on MacBook Air M3
Hello, I recently installed the macOS 26 beta version on my MacBook Air M3, and I've encountered an issue where edited Word files are failing to save. I’ve tried restarting my laptop and checking for updates, but the problem persists. Has anyone else experienced this issue? Is there a specific setting I might have missed or any troubleshooting steps you recommend? Thank you for your assistance!
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40
Jun ’25
Bluetooth Connectivity Issues
Since 17.4 Dev Beta 2, I have been having Bluetooth issues. I had hoped it would have cleared up but even in 17.4.1 it continues. Airpod and Echo Auto are the only 2 audio devices I have. The audio will become chopping, rubber band or sound robotic and sometime completely disconnect. While driving it will occur on both audio devices. Sometimes I'm stopped at red light and the issue occurs. The phone is less than 3 feet from the device at all times. I have read forums and removed and readded the devices but that did not help. I really do not want to have to reset my phone since my 2FA apps do not recover in a restore. Anyone have any suggestions?
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1.4k
Jun ’25
Tilde, back tick and Pipe are missing from keyboard
I opened a terminal window this morning and couldn't cd to /home. When I type a tilde, I get a paragraph symbol. Yesterday, my external keyboard could type a Pipe symbol, no such luck today. I ended up having to use hidutil to remap my keyboard and run keystrokes through terminal to restore what worked yesterday. When I look at the available English keyboards, they're all showing a paragraph symbol above the Tab key. Has anyone else run into this sudden keyboard change?
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Jun ’25
Bluetooth not working in Satellite mode – iOS blocks Bluetooth access for EV charging app
We have developed a live iOS application, built using Swift and UIKit, that enables users to connect via Bluetooth to an EV charging box. Once connected, users can start and stop the charging process directly from the app. The app also requires an active internet connection initially, as it uses server-side functionality to select and authorize the charging box. However, we recently discovered an issue affecting users on iPhone 14 and iPhone 15 models, specifically when the device enters Satellite mode (Emergency SOS via Satellite) — i.e., when there is no mobile data or Wi-Fi. In this mode, the system Satellite screen is triggered and Bluetooth stops functioning, preventing our app from connecting to the EV box. Users are unable to proceed, even though the app would still be usable via Bluetooth once the box is selected. We have already declared required Bluetooth background modes (bluetooth-central, bluetooth-peripheral) in Info.plist, and the app functions perfectly outside of this scenario. However, the behavior in Satellite mode appears to either disable Bluetooth entirely or restrict access from third-party apps. We’d like to know Is this the expected default behavior on iOS in Satellite mode? Is there any entitlement or exception available to allow Bluetooth access in such emergency scenarios (especially for critical utilities like EV charging)? Can an app like ours be made visible under the Satellite settings, or request access under this mode? This is a concern for users in remote or basement locations where mobile data is unavailable, and they rely solely on Bluetooth to charge their vehicles. Please advise if there is a workaround or planned support in future iOS versions. Thank you.
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Jun ’25
Which iPad gen device I should purchase, where AppStore is rejecting my app for iPad Air gen 5
Recently I got an issue on App Store that my build got rejected because of iPad Air 5. My app include Device binding which means sim should be present in Device while using the app, where as, I mad the app mainly for iPhone not for pads. But AppStore is rejecting my build saying getting no sim issue in iPad Air 5th gen And os 18.5 . So what should I do? Which device I should prefer so that I can use it future also , should not be outdated within some time.
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Jun ’25