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iPhone SE (2020) no audio signal output

BitPerfect_

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I have tried to connect this iPhone SE (2020), using lightning > USB B > DAC and there is no signal output when I play a song from Apple Music.
The same setup using an iPad Air 4 (2020), a cable USB C > USB B > DAC, it works like a charm.

Any hint to make the iPhone work? I've tried to enable/disable the EQ, as I've read as a possible workaround but... no luck.
Thank you,
 

SMc

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I don't know why the iPad works, but usually digital output requires the Apple Camera kit.


Ah, it's the USB C that makes the difference. No, this doesn't explain how I can use a Lightning connection to my car stereo.
 
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BitPerfect_

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Yes, I saw this post but reading other thoughts I've found that a simple cable will do the job (confirmed also by me using iPad).
So, in other words, USB-C is able to deliver the audio signal through the USB-B and lightning to USB-B is restricted somehow or ...?
 

staticV3

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Please tell us precisely what cable/adapter you're using to connect what DAC to your iPhone
 
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BitPerfect_

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These are the components: The adapter USB-B <> USB-C, the cable that is working with the iPad Air 4 (2020) USB-C <> USB-C, and the other cable that is not working with iPhone SE (2020), USB-C <> lightning.

4357C4F0-82F5-4CB2-89DE-747325DAC98E.jpg
mll82.jpg
MM0A3.jpg
 
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BitPerfect_

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Sorry, what’s the difference?
And why I am able to use this kind of standard cable with iPad connected to a DAC or with iPhone connected to a laptop to transfer data not only charging … !?
 
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staticV3

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The cable needs to have a special "MFi" chip (Made For iPhone) inside to tell the iPhone that it's safe to supply power to the attached USB accessory.
Apple's standard cables do not have that chip.
 
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BitPerfect_

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Make sense in this case, funny that is not apply also for iPad…

LE: sorry to say but, the above cables are Apple and according to this article, even the Apple standard cables already have MFi so..., I don't think that it's the cable. More than that, as I've mentioned, the cable is working fine connected to a laptop, the pop-up message about the connected device show up, I am able to accept or deny, and so on. I'll try to test another iPhone in order to eliminate the cable from this equation.
 
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DMill

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Make sense in this case, funny that is not apply also for iPad…

LE: sorry to say but, the above cables are Apple and according to this article, even the Apple standard cables already have MFi so..., I don't think that it's the cable. More than that, as I've mentioned, the cable is working fine connected to a laptop, the pop-up message about the connected device show up, I am able to accept or deny, and so on. I'll try to test another iPhone in order to eliminate the cable from this equation.
I have a similar situation where i can connect my iPhone 11 to my dac with Apples lightning camera adapter and it works great. But with my ipad (6 generation) I get nothing. Music plays through the iPad but doesn’t drive the DAC. I just assumed I need a powered USB hub but am too cheap to buy one.
 

staticV3

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LE: sorry to say but, the above cables are Apple and according to this article, even the Apple standard cables already have MFi so..., I don't think that it's the cable.
There's a difference between an MFi-certified charging cable and an MFi-certified discharging cable.
The cable that came with your iPhone is a certified charging cable, but will not work in a scenario where your iPhone has to discharge via USB to power some accessory. Yes, Apple's MFi program really is that dumb.
Here's one such discharging cable: https://aliexpress.com/item/33009721024.html
 
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NiagaraPete

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I don't know why the iPad works, but usually digital output requires the Apple Camera kit.


Ah, it's the USB C that makes the difference. No, this doesn't explain how I can use a Lightning connection to my car stereo.
This is not actually true. The camera kit only allows for charging.
 

SMc

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This is not actually true. The camera kit only allows for charging.

but I don't what specific case to which you refer.
 
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BitPerfect_

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I don't think you can plug Type-C DACs into your iPhone using that cable.
Here's a list of cables that can do that.
If you need something longer, consider buying this adapter plus any C to C cable of suitable length.
Or perhaps this 4ft cable from the same mfr.
Would you please advise, the column B in the xls file is referring at ... ?
I think I'll purchase this one but first it will be interesting to know what 9038S/D versions means. Thanks,
 

staticV3

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Would you please advise, the column B in the xls file is referring at ... ?
It's a spreadsheet that I created for customers of the E1DA 9038S and 9038D, to help them find the right cable for their iPhone model.
Each colored cell links to a message in the E1DA discord server where people report which iPhone+cable+DAC combination has worked for them and which hasn't.
 
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