Dove in and upgraded two Macs today to beta 1. Unfortunately, it appears L2TP VPN is broken or something changed in the way it works. I can longer get a connection to any VPN concentrator I used previously. I tested with Cisco Anyconnect SSL VPN client and can connect to the same concentrators (as they're configured to accept L2TP or SSL clients).
I also tested from my phone running iOS 16 beta and it still works for the L2TP connections.
The Mac not working with L2TP VPN ppp.log shows this
Fri Jun 10 19:18:52 2022 : L2TP connecting to server 'IP removed' (IP removed)...
Fri Jun 10 19:18:52 2022 : IPSec connection started
Fri Jun 10 19:18:52 2022 : IPSec phase 1 client started
Fri Jun 10 19:19:02 2022 : IPSec connection failed
Connecting a Mac successfully on 12.4 the log shows
Fri Jun 10 19:12:33 2022 : L2TP connecting to server 'IP removed' (IP removed)...
Fri Jun 10 19:12:33 2022 : IPSec connection started
Fri Jun 10 19:12:33 2022 : IPSec phase 1 client started
Fri Jun 10 19:12:33 2022 : IPSec phase 1 server replied
Fri Jun 10 19:12:34 2022 : IPSec phase 2 started
Fri Jun 10 19:12:34 2022 : IPSec phase 2 established
Fri Jun 10 19:12:34 2022 : IPSec connection established
(and then a ton more lines of the entire process ending with client getting an IP that I won't bother posting)
VPN wasn't high on my list of apps I was concerned about breaking with the beta. But, now that it is broke and I need it for work I'm kinda screwed myself.
Anyway, if anyone knows a way to fix this please let me know.
Hardware
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G'day.
At my office the doors are locked with an NFC reader. We carry around a little NFC tag on our key chains which will read out a number and this then will open the door if the number matches a number in the database.
I am tired of carrying around the tag, people keep loosing it, forgetting it and it would be nice to open the door using a Phone - which we tend to always have on us.
So I used a credit card which is NFC enabled to readout the NFC information, added this number to the database and can now open doors using my credit card. This is pretty cool. If I forget my keys (most likely they will be on the desk but silly me left the desk without them), I may have my wallet with me.
Then I tried Wallet.app on my iPhone and select the same credit card. However the door doesn't open. When looking in the door software I noticed that the tags will always transmit the same number. So does my credit card. However Wallet.app will read out 4 readings (or maybe just one very long one) and they are always different. So I can not make them match with the door database.
Any ideas how to make this work? Can I give somehow wallet.app an NFC number which I can then add to my door database? Or how come the credit card and the very same one in wallet.app don't match?
Thanks for your help! Would be neat if I could make this work out. This will make a lot of people happy at my office!
Cheers!
Previously discussed in beta:https://forums.developer.apple.com/message/330295This process stops responding every day it seems, I'm running 10.14.3 (18D109)When the process hangs, its Open Files and Ports include the following:txt
/Library/Preferences/Logging/.plist-cache.ZP6RP0OT
txt
/private/var/db/timezone/tz/2018i.1.0/icutz/icutz44l.dat
txt
/usr/share/icu/icudt62l.dat
txt
/private/var/folders/35/dgpwsg457w17gs77hssnrbnw0000gn/0/com.apple.LaunchServices-231-v2.csstoreThose are not open when the service is running (before it hangs)Would like to know how frequently this hangs for everyone else and get steps to troubleshoot if possible.
I have a command line utility I wrote that has been working great up until Sequoia that reads the macro keys from a Logitech G600 gaming mouse and turns it in to custom commands. it was using the following code, checking if usage was 0x80:
IOHIDManagerRegisterInputValueCallback(
g600HIDManager,
{ _, returnResult, callbackSender, valueRef in
let elem = IOHIDValueGetElement(valueRef)
let usage = IOHIDElementGetUsage(elem)
let pressed = IOHIDValueGetIntegerValue(valueRef)
Now i'm having issues with opening the HID manager:
IOHIDManagerOpen(g600HIDManager, IOOptionBits.zero)
After changing the system security from permissive to restrictive, It's giving the error code 0xE00002E2, or no permission. I can't easily add the sandbox entitlements as this is just a simple CLI application, not a bundled app, and even after setting back to csrutil disable, i'm still getting this error.
So now i'm trying to turn it in to a bundled app and use CoreHID instead. Unfortunately I'm not getting any notifications that aren't the mouse itself. From the above code that was working before, i was looking for usage values of 0x80. I'm guessing that directly corresponds to the usage 0x80 in the HID descriptor. I am receiving notifications via
await deviceClient!.monitorNotifications(reportIDsToMonitor: [] , elementsToMonitor: [] )
which should pick up everything for the device. I know the usage i'm looking for is referenced in the device client because it's in the deviceClient.elements collection.
So is there something in CoreHID that specifically blocks Vendor specified Usage pages from being picked up by notifications?
I've also tried just requesting the elements using
let elemToMon = await deviceClient?.elements.filter({ ele in
return ele.usage.page == 0xFF80 && ele.usage.usage == 0x80
})
let request = HIDDeviceClient.RequestElementUpdate(elements: elemToMon!)
let results = await deviceClient!.updateElements([request])
but that call errors (still trying to figure out exactly how it errors).
Any help would be appreciated, either in figuring out why i'm not getting the HID reports in question using CoreHID, or even what has changed that is causing me to not be able to use IOKit.hid anymore.
Thanks in advance!
For reference, here's the decoded HID descriptor:
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x09, 0x06, // Usage (Keyboard)
0xA1, 0x01, // Collection (Application)
0x85, 0x01, // Report ID (1)
0x05, 0x07, // Usage Page (Kbrd/Keypad)
0x19, 0xE0, // Usage Minimum (0xE0)
0x29, 0xE7, // Usage Maximum (0xE7)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x08, // Report Count (8)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x75, 0x08, // Report Size (8)
0x95, 0x05, // Report Count (5)
0x15, 0x00, // Logical Minimum (0)
0x26, 0xA4, 0x00, // Logical Maximum (164)
0x19, 0x00, // Usage Minimum (0x00)
0x2A, 0xA4, 0x00, // Usage Maximum (0xA4)
0x81, 0x00, // Input (Data,Array,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x06, 0x80, 0xFF, // Usage Page (Vendor Defined 0xFF80)
0x09, 0x80, // Usage (0x80)
0xA1, 0x01, // Collection (Application)
0x85, 0x80, // Report ID (-128)
0x09, 0x80, // Usage (0x80)
0x75, 0x08, // Report Size (8)
0x95, 0x05, // Report Count (5)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x85, 0xF6, // Report ID (-10)
0x09, 0xF6, // Usage (0xF6)
0x75, 0x08, // Report Size (8)
0x95, 0x07, // Report Count (7)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x85, 0xF0, // Report ID (-16)
0x09, 0xF0, // Usage (0xF0)
0x95, 0x03, // Report Count (3)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF1, // Report ID (-15)
0x09, 0xF1, // Usage (0xF1)
0x95, 0x07, // Report Count (7)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF2, // Report ID (-14)
0x09, 0xF2, // Usage (0xF2)
0x95, 0x04, // Report Count (4)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF3, // Report ID (-13)
0x09, 0xF3, // Usage (0xF3)
0x95, 0x99, // Report Count (-103)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF4, // Report ID (-12)
0x09, 0xF4, // Usage (0xF4)
0x95, 0x99, // Report Count (-103)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF5, // Report ID (-11)
0x09, 0xF5, // Usage (0xF5)
0x95, 0x99, // Report Count (-103)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF6, // Report ID (-10)
0x09, 0xF6, // Usage (0xF6)
0x95, 0x07, // Report Count (7)
0xB1, 0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0x85, 0xF7, // Report ID (-9)
0x09, 0xF7, // Usage (0xF7)
0x75, 0x08, // Report Size (8)
0x95, 0x1F, // Report Count (31)
0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
On iOS 18.x when try to create EASession we get nil, but on iOS 17.x everything works.
We have app which use USB cable for connecting external accessories.
Scenario is when we have fresh instal, connecting with accessory work fine, EASession is created, streams are opened.
When we unplug USB, we close streams, remove any reference to session and accessory, remove accessory delegate.
When plug it again, creating EASession is returning nil. Only after restarting iPhone, we can create new EASession with appropriate protocol and accessory. Every next attempt without reseting iPhone is failing.
Logs from accessory is following:
00:05:51.811000 : onUSBDeviceFound(pDevice=0xffc818)) iPhone USB device already in the device list w/id=1 -> update status now[21;1H
00:05:51.830000 : setConnectionStatus(status=connected) [devId=1] state updated -> forward[21;1H
Capabilities indicate HostMode possibility => role switch is triggered
00:05:52.848000 : updateDIPODeviceConnections() iPhoneUSB w/caps=5 (=CarPlay or HostMode), deviceTag=2 in Device mode -> request role switch[21;1H
Role switch seems to be successful
00:05:54.914000 : setSwitching('stable') changed[21;1H
00:05:54.915000 : updateDIPODeviceConnections() iPhoneUSB w/caps=2, id=1, deviceTag=2 and native transport -> request app launch and call connectUSB[21;1H
00:05:54.967000 : ConnectiAP2(05ac:12a8, s/n='00008101000160921E90801E', writeFD='/dev/ffs/ep3', readFD='/dev/ffs/ep4', hostMode){3}[21;1H
Native transport should become available but does not (the following line is not present for failed case. Taken from successful case)
00:05:24.983000 : OnDBusPropChanged_NativeTransport(): deviceId=2, started=1, iAP2iOSAppIdentifier=1, sinkEndpoint=3, sourceEndpoint=4, TransactionID=1
EAP Start event not received (trace line from success try)
00:05:25.057000 : EAPSessionStart(ctx=0x74e0b800){2} called[21;1H
Is there any braking change on iOS 18 considering EASession?
Also what is strange is that it works on fresh instal/restart iPhone, but not working on second attempt?
Prerequisite: After the MDM APP issues the command, the camera on the phone is no longer visible (unusable).
After upgrading to iOS 26.1, the isSourceTypeAvailable: UIImagePickerControlSourceTypeCamera method keeps returning true when the camera is unavailable.
The isSourceTypeAvailable: UIImagePickerControlSourceTypeCamera method on iOS 26.0.1 is normal, returning false when the camera is unavailable and true when it is available.
Hello
I've noticed that this product, heavily promoted on the ASC forums for many years, is no longer available from the Apple App Store.
Can anyone tell me the reason why the product is no longer supported?
Friends have asked me if it is 'safe' to use.
Is it?
Note to moderator: If I'm asking in the wrong places, please redirect my question. Thank you.
As of iOS 18.1 being released we are having issues with our users experiencing issues with our app that relies on strobing the device torch.
We have narrowed this down to being caused on devices with adaptive true-tone flash and have submitted a radar: FB15787160.
The issue seems to be caused by ambient light levels. If run in a dark room, the torch strobes exactly as effectively as in previous iOS versions, if run in a light room, or outdoors, or near a window, the strobe will run for ~1s and then the torch will get stuck on for half a second or so (less frequently it gets stuck off) and then it will strobe again for ~1s and this behaviour repeats indefinitely.
If we go to a darker environment, and background and then foreground the app (this is required) the issue is resolved, until moving to an area with higher ambient light levels again. We have done a lot of debugging, and also discovered that turning off "Auto-Brightness" from Settings -> Accessibility -> Display & Text Size resolves the issue.
We have also viewed logs from Console.app at the time of the issue occurring and it seems to be that there are quite sporadic ambient light level readings at the time at which the issue occurs. The light readings transition from ~100 Lux to ~8000 Lux at the point that the issue starts occurring (seemingly caused by the rear sensor being affected by the torch). With "Auto-Brightness" turned off, it seems these readings stay at lower levels.
This is rendering the primary use case of our app essentially useless, would be great to get to the bottom of it! We can't even really detect it in-app as I believe using SensorKit is restricted to research applications and requires a review process with Apple before accessing?
Edit: It's worth noting this is also affecting other apps with strobe functionality in the exact same way
Hi, as other threads have already discussed, I'd like to record audio from a keyboard extension.
The keyboard has been granted both full access and microphone access. Nonetheless whenever I attempt to start a recording from my keyboard, it fails to start with the following error:
Recording failed to start: Error Domain=com.apple.coreaudio.avfaudio Code=561145187 "(null)" UserInfo={failed call=err = PerformCommand(*ioNode, kAUStartIO, NULL, 0)}
This is the code I am using:
import Foundation
import AVFoundation
protocol AudioRecordingServiceDelegate: AnyObject {
func audioRecordingDidStart()
func audioRecordingDidStop(withAudioData: Data?)
func audioRecordingPermissionDenied()
}
class AudioRecordingService {
weak var delegate: AudioRecordingServiceDelegate?
private var audioEngine: AVAudioEngine?
private var audioSession: AVAudioSession?
private var isRecording = false
private var audioData = Data()
private let targetFormat = AVAudioFormat(commonFormat: .pcmFormatInt16,
sampleRate: 16000,
channels: 1,
interleaved: false)!
private func setupAudioSession() throws {
let session = AVAudioSession.sharedInstance()
try session.setCategory(.playAndRecord, mode: .spokenAudio,
options: [.mixWithOthers, .allowBluetooth, .defaultToSpeaker])
try session.setPreferredIOBufferDuration(0.005)
try session.setActive(true, options: .notifyOthersOnDeactivation)
audioSession = session
}
func checkMicrophonePermission(completion: @escaping (Bool) -> Void) {
switch AVAudioApplication.shared.recordPermission {
case .granted:
completion(true)
case .denied:
delegate?.audioRecordingPermissionDenied()
completion(false)
case .undetermined:
AVAudioApplication.requestRecordPermission { [weak self] granted in
if !granted {
self?.delegate?.audioRecordingPermissionDenied()
}
completion(granted)
}
@unknown default:
delegate?.audioRecordingPermissionDenied()
completion(false)
}
}
func toggleRecording() {
if isRecording {
stopRecording()
} else {
checkMicrophonePermission { [weak self] granted in
if granted {
self?.startRecording()
}
}
}
}
private func startRecording() {
guard !isRecording else { return }
do {
try setupAudioSession()
audioEngine = AVAudioEngine()
guard let engine = audioEngine else { return }
let inputNode = engine.inputNode
let inputFormat = inputNode.inputFormat(forBus: 0)
audioData.removeAll()
guard let converter = AVAudioConverter(from: inputFormat, to: targetFormat) else {
print("Failed to create audio converter")
return
}
inputNode.installTap(onBus: 0, bufferSize: 1024, format: inputFormat) { [weak self] buffer, _ in
guard let self = self else { return }
let frameCount = AVAudioFrameCount(Double(buffer.frameLength) * 16000.0 / buffer.format.sampleRate)
guard let outputBuffer = AVAudioPCMBuffer(pcmFormat: self.targetFormat,
frameCapacity: frameCount) else { return }
outputBuffer.frameLength = frameCount
var error: NSError?
converter.convert(to: outputBuffer, error: &error) { _, outStatus in
outStatus.pointee = .haveData
return buffer
}
if error == nil, let channelData = outputBuffer.int16ChannelData {
let dataLength = Int(outputBuffer.frameLength) * 2
let data = Data(bytes: channelData.pointee, count: dataLength)
self.audioData.append(data)
}
}
engine.prepare()
try engine.start()
isRecording = true
delegate?.audioRecordingDidStart()
} catch {
print("Recording failed to start: \(error)")
stopRecording()
}
}
private func stopRecording() {
audioEngine?.inputNode.removeTap(onBus: 0)
audioEngine?.stop()
isRecording = false
let finalData = audioData
audioData.removeAll()
delegate?.audioRecordingDidStop(withAudioData: finalData)
try? audioSession?.setActive(false, options: .notifyOthersOnDeactivation)
}
deinit {
if isRecording {
stopRecording()
}
}
}
Granting the deprecated "Inter-App Audio" capability did not solve the problem either.
Is recording audio from a keyboard extension even possible in general? If so, how do I fix it?
Related threads:
https://developer.apple.com/forums/thread/108055
https://developer.apple.com/forums/thread/742601
Hello. I have a problem with update check ! Say “ error to Check update” update section on my iPhone 16 pro.
what Is the solution to fix?
Topic:
App & System Services
SubTopic:
Hardware
I’m encountering an unexpected issue while using NEHotspotConfigurationManager.shared.apply(...) to connect to a Wi-Fi network. Specifically, I’m receiving a userDenied error, even though the user did not interact with any system prompt.
Here’s a version of the code I’m using:
let config = NEHotspotConfiguration(ssid: ssid, passphrase: passphrase, isWEP: false)
// config.joinOnce = true
NEHotspotConfigurationManager.shared.apply(config) { error in
if let err = error {
let nsErr = err as NSError
mlog("err.code:\(nsErr.code)")
if nsErr.code == NEHotspotConfigurationError.alreadyAssociated.rawValue {
self.findWiFiListAndConnect(ssid, passphrase, overtimeSec, timeStart)
} else {
self.cmdDelegateQueue.async {
self.delegate?.wifiClose(nsErr.code)
}
}
}
}
The error returned is:
wifiClose status: 7
Which corresponds to NEHotspotConfigurationError.userDenied. According to the official Apple documentation, this error should only occur when the user explicitly cancels the system dialog. However, in my case:
• No system dialog appears.
• The user does nothing, yet the error is still returned.
• This issue does not happen every time, but it has been observed across multiple devices.
Additional info:
• iOS version: 18.5
• Device model: iPhone
• joinOnce is not set (defaults to false)
• Existing configuration is removed using removeConfiguration(...) before applying
Is it possible that under certain system states (e.g. backgrounded, network restrictions, or app permissions), iOS silently fails without showing the prompt?
Has anyone else encountered this issue, or does anyone know what could cause this behavior?
Any help is greatly appreciated!
I am debugging ImageCaptureCore to communicate with external cameras.
When I called the PTP function below to send a command and add data, the response timed out for more than 5 seconds. After waiting for a period of time, I obtained the response. However, the response callback function obtained responsivData.length as zero and ptpResponseData.length as zero too.
(void)requestSendPTPCommand:(NSData *)ptpCommand
outData:(NSData *)ptpData
completion:(void (^)(NSData *responseData, NSData *ptpResponseData, NSError *error))completion;
data is below:
Wrote 1 = 0x1 bytes PTP:send data: (hexdump of 1 bytes)
[ ] I/PTP (14564): 0000 01 - .
Topic:
App & System Services
SubTopic:
Hardware
Updated version of this post
My HomePod mini is now on version 16.4, so the the temperature and humidity sensors are enabled. The data properly shows up in the Home app on my various devices.
In my HomeKit iPad app running on Mac Catalyst, however, the data does not show up. I would expect the HomePod mini to show up in HMHome.accessories with a service of type HMServiceTypeTempatureSensor. I see all of my other HomeKit accessories, just not the HomePod mini.
I have tried with the latest Xcode (14.3) and highest available iOS Target and Minimum Deployment (16.4), macOS version 13.3. I have not, as of this writing, upgraded my HomeKit architecture, however.
Note that I haven't tried the app on an actual iPad (and the iOS simulator doesn't expose my HomeKit environment.)
We are experiencing problems with the USB port on iPad Pro 11 inch (M4) model number MVW13NF/A. Our custom peripheral device (based on Raspberry Pi Pico + tinyUSB stack, is configured as a network adapter class and has communication with our App over UDP protocol. Our device also acts as a DHCP server, providing the IP address for iPad.
The problem can be described as a “bus stall” or "bus hold" after sleep mode. To reproduce it we just send the iPad into sleep mode using a power button, the USB bus on M4 goes to the suspended state and won’t resume anymore when we wake the iPad up.
The problem has occurred since the upgrade to iOS 18.2.1 and has not been observed before on the previously installed iOS 17 on the same iPad Pro M4.
Also, the problem does not happen on the iPad Pro 11 inch (3rd gen with M1) model number MHW73FD/A, with the same iOS 18.2.1 installed. The problem also does not arise, if we connect our device via USB hub to the same iPad Pro M4.
We have tested different versions of tinyUSB stack (either included in RPi Pico SDK or native unpatched). The problem is independent of the library version. It occurs always if our device is connected directly to the USB port of iPad Pro (M4) with iOS 18. It also stays after upgrading to the latest iOS 18.3 (beta)
In the attached logs is (reduced for clarity) debug output from tinyUSB library about events on the USB bus. These logs were captured via RTT debugging output, using Segger J-Link debugger, so logging process does not affect the timings on the USB bus.
There are three logs attached, for cases 1: "iPad Pro M4 + iOS18" (i.e. problematic case), 2: "iPad Pro M1 + iOS18", and 3: "iPad Pro M4 + iOS18 + external USB hub" (they are non-problematic cases).
case1_usbd_log.txt
case2_usbd_log.txt
case3_usbd_log.txt
This was already posted as feedback with id FB16366509
Hello,
What is the best and Apple recommended way to get display name and its vendor information?
The CoreGraphics framework provides ModelNumber and VendorNumber only.
Looks like IOKit does not provide any documented way at all.
Are there any daemon safe way to get such information?
Thank you in advance,
Pavel
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?
We have an application that is built for communication for emergency first responders. Our app streams video from emergency responder mobile devices to other responders, however, when the app moves into the background, or the screen locks, the stream is terminated. Is there a way to allow the stream to persist.
Topic:
App & System Services
SubTopic:
Hardware
Hello Apple team and community,
I’m reporting a critical issue affecting iPhone 13 (128 GB) on iOS 26 Public Beta 3.
Problem Summary:
• Device stays stuck at 1% battery, even while charging
• Battery Health shows 0% in Settings
• Phone reboots every 5 minutes while unplugged
• Only works when connected to power
• Cannot update, charge properly, or maintain uptime
Additional Context:
• The issue appeared immediately after installing iOS 26 beta 3
• Affected devices often have a replaced battery (even official or high-quality replacements)
• Seems to be a software validation bug related to battery firmware
• Reported by many users across Reddit, Apple Forums, and Twitter — but not listed in Known Issues
What Has Been Tried:
• Recovery Mode / Safe charging / Clean install (same version) – no effect
• Third-party repair tools (ReiBoot, 3uTools) — partial workaround
• Jailbreak with Nugget or iCleaner to disable crash daemons – temporarily helps
• Apple Support suggested full device replacement (!)
⸻
Request:
Please investigate and acknowledge this issue. This bug renders devices unusable for users with legitimate battery replacements — we need a fix in an upcoming beta.
We are develop an application with corebluetooth framework. we connect to device with ble. and open two l2cap channels. it can transfer data with stream. but when it close the second l2cap channel, it always close the first l2cap channel.
I am developing the electronic part of product, it includes a Find-My features. I saw some forum that testing Find-My feature needs a CSR and testing token. Can anyone teach me how to apply CSR and testing token step by step?
Thank you very much.
Best regards
Sam Ng