iPad Pro iPad pro 2018 12.9 inch cannot use OTG function (mouse, keyboard, monitor, earphones via TypeC port)

[iPadLover.v01]

I cannot connect these accessories to my iPad via TypeC port. They don't work.

Its charging function OK. I can connect to transfer data between iPad and my PC OK.​

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Only OTG function does not work.​

The last time I used OTG function (external storage, mouse.... no problem) was 4 years ago.

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Yesterday, I connected my earphones, external monitor, mouse, HDD.... none of them worked.​

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All these accessories work normally with my other iPad Pro, iPad Air, Android phones, Laptop...​

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I did factory reset already. The problem is still here.

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Thank you very much.

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[Slartibart]

1. what iPadOS version?
2. you probably did, but visually inspect the USB-C port on the iPad for any debris stuff sticking in there.
3. Check Settings > Face ID & Passcode > Accessories.
4. If and for which possible, check the peripherals connecting via a powered hub.

 

[iPadLover.v01]

1. what iPadOS version?
2. you probably did, but visually inspect the USB-C port on the iPad for any debris stuff sticking in there.
3. Check Settings > Face ID & Passcode > Accessories.
4. If and for which possible, check the peripherals connecting via a powered hub.

Thank you for your support.

1. Its version is 17.7.2
2. I did already. Checked and cleaned.

3. What should I do in this setting?

I see one setting related to Accessories. I tuned it on. The problem is still here.​

4. I tested on a powered hub already (this hub which can charge iPad and connect multiple accessories simultaneously. My iPad was in charging normally, but no accessory found). The problem is still here.

 

[Slartibart]

• Update to the latest iPadOS 17.7.9. After the update. Verify that the Accessory setting is indeed turned on. Shut the iPad down (no restart but shut down). Wait 'three Mississippis' , turn the iPad on.
• With the »Accessories« ON disconnect e.g. all peripherals. lock the screen. Unlock screen.
• Connect a peripheral, e.g., a monitor adapter without monitor connected (if available; the pure adaptor does not need a lot of power and should register with a visual indicator in the top right of your iPad).

If that does not work - you have access to a Mac?

Download and install Apple Configurator 2 . Among other features, it allows to check and overwrite set the Accessory setting mentioned before via a device profile, as well as access to the device logs.

1. Connect the iPad to the Mac and trust the computer
2. Start the Apple Configurator 2
3. Within the "All Devices" view double-click on the device attached to the Mac. An overview of the device is shown
4. Configure new settings in Restrictions payload editor <- explicitly allow Accessories
5. To better understand what is going on -> On the left hand menu bar click on "Console". The console of the device opens showing a live log

EDIT: in relation to the first steps checking with a pure monitor adaptor - if that does not work initially, please verify by disconnecting and reconnecting with the USB-C cable connector turned 180 degrees. I know it is USB-C but for diagnostic purposes trust me on this one 🤓

EDIT II: I just checked, the iPad (or iPhone for that matter) logs are actually directly from Apple Console after connecting the iDevice to a Mac (Applications/UtilitiesConsole).