I signed my wife out of her AppleID on her iPad to use it and signed my own AppleID. Now her iPhone can't see/send/receive pictures.

Hi Grimmshadowmask,

Okay, let's focus on the Message app. Please follow the steps from the article below that can help:

If you can't send or receive messages on your iPhone or iPad

If you experience issues like conversations in Messages showing up as separate threads or sent messages appearing as green message bubbles instead of blue message bubbles when you set up a new device, update your settings using the following steps:

1. Update your device to the latest version of iOS or iPadOS if needed.

2. In the Settings app, tap Cellular. Make sure that your phone line is turned on. If you use multiple SIMs, make sure that the phone number you want to use is selected and turned on.

3. In the Settings app, tap Messages. Turn iMessage off and then back on.

4. Tap Send & Receive.

5. Tap the phone number that you want to use with Messages.

Hope this helps!

Have a great day.

Hello Grimmshadowmask,

Let's use the applicable set of steps below to restart her iPhone:

How to restart your iPhone X, 11, 12, 13, or later

1. Press and hold either volume button and the side button until the power-off slider appears.

2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.

3. To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo.

How to restart your iPhone 6, 7, 8, or SE (2nd or 3rd generation)

1. Press and hold the side button until the power-off slider appears.

2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.

3. To turn your device back on, press and hold the side button until you see the Apple logo.

How to restart your iPhone SE (1st generation), 5, or earlier

1. Press and hold the top button until the power-off slider appears.

2. Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.

3. To turn your device back on, press and hold the top button until you see the Apple logo.

You can also find those steps in this resource: Restart your iPhone - Apple Support Restarting can sometimes help address odd behaviors.

Should that still persist, is this happening with multiple apps, or only certain ones?

Does she get any prompts or errors when she attempts to send a photo?

Let us know, and we'll keep moving forward based on those details.

Having the same issues on my iPhone. Sometimes it works and then stops working after several days. So frustrating.