Q: I cannot use my lighting adapter to upload photos to my iPad mini 4 from my wifi camera or any usb. It says that the dispositive requires too much energy even if the camera is fully charged.

Hello gretastesis,

The resource below explains how to import photos from a digital camera to your iPad using Apple Camera adapters.  I've highlighted some key information.  Click on the link for complete details.

Import photos using Apple camera adapters
 

You can import photos and videos from an SD card, digital camera, or other supported accessory to your iPhone or iPad using one of these:

• Lightning to SD Card Camera Reader
• Lightning to USB Camera Adapter
• iPad Camera Connection Kit (iPads with Dock Connector only), which contains both iPad Camera connector and iPad SD card reader

If you use an iPhone, you need iOS 9.2 or later.

Import photos and videos

To import from your SD card or digital camera, follow these steps:

1. Connect the adapter to your iPad or iPhone.
2. Connect your digital camera to the adapter by USB or insert an SD card.
3. Photos should automatically open to the Import tab. If it doesn't, open Photos and tap Import.
4. Tap Import All to import your content, or tap specific items, then tap Import.
5. When the import is complete, you might be asked to Keep or Delete the media on the camera or SD card.

You can only import content to your iPhone or iPad. You can't export content to an SD card or digital camera.

If you don’t see the import option

If you don't see the Import tab, follow these steps:

1. Make sure that your digital camera is on and in the correct mode to export images.
2. Disconnect the adapter, wait 30 seconds, then reconnect it.
3. Unplug the digital camera or SD card, wait 30 seconds, then reconnect.
4. Restart your iPhone or iPad and turn your camera off and back on.
5. If one is available, test with a different digital camera or SD card. 

If you can import media with a different digital camera or SD card, there might be an issue with the data on the other camera or SD card. You might need to import the data to your computer, then initialize—or reset—the media on the digital camera or SD card. Check the manual for your digital camera for more help.

 

Supported SD cards and image-transfer protocols

Apple camera adapters can only import content that was captured by digital cameras. You might not be able to import photos or videos that were copied from a computer, renamed, or edited on the digital camera or SD card.

Supported SD cards and image-transfer protocols include:

• Picture Transfer Protocol (PTP)
• Mass Storage Device protocol
• SDSC
• SDHC
• miniSD
• microSD
• MMC
• SDXC

Flash or USB thumb drives aren't supported.

Take care,