Transfering all photos from old iPad

If you can get access to a Mac or a PC, you should try the iMazing application.

It allows you to selectively copy data from your iPad. You should be able to get all photos from the Photos app. I believe iMazing can also copy individual apps and their data from one device to another.

The iMazing application can also create backups and lets you browse those backups. Make a backup. Save it to a USB pen drive. Whatever method you use to transfer photos from your old iPad to the new iPad, that USB stick will be your safety net. Keep it around until you are sure the new iPad has all the photos.

You can use the camera connector ( https://www.apple.com/au/shop/product/MK0W2AM/A/lightning-to-usb-3-camera-adapter ) + 30 pin cable (the one that fits your older iPad) + lightning cable (the cable for your new iPad).

• Camera connector goes to your iPad.
• Use the extra lightning slot to provide power to the iPad/connector.
• Use your 30 pin cable from the old iPad to plug that into the USB-A slot.
• Unlock new iPad and go to photos.
• Unlock old iPad.
• They may ask if you want to "trust." Tap in passcode to say yes.
• New iPad will show "import" tab/button.
• Import away.

May take some time depending on # of photos and videos. That is why you have it plugged into power.