Wifi wont turn on

If an app or feature on your device is not working, not appearing, or is restricted (grayed out), it may have been disabled using Screen Time, or by an IT administrator if you are using a device owned by an employer or educational institution.

- Read this support article If your Apple ID or other options are greyed out in Settings —> If your Apple ID is greyed out in Settings - Apple Support

Tap Settings > Screen Time > Content & Privacy > scroll to Allow Changes.

- If the device is managed (Settings > General > VPN & Device Management), contact the IT department that is doing the managing.

ashlin96 wrote: "It says 88%"

Okay, an original battery with 88% is good. Apple's iPhone User Guide says: "If your iPhone isn’t working as expected, you can try restarting it by turning it off, then turning it back on. If turning it off and on doesn’t fix the issue, try forcing it to restart.":

Turn iPhone on or off - Apple Support

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Majukas wrote: "max battery is 80% and I think it still has the original battery aswell"

Majukas ~ 80% is not healthy and is probably the reason Wi-Fi doesn't turn on. Apple recommends having the battery replaced at around 80% – so have the weak, aging battery replaced and see if that solves the problem:

iPhone Battery Service

About genuine iPhone batteries

Repair Provider Verification

(Articles found by searching Apple's Knowledge Base.)

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ashlin96 wrote: "...I have an iPhone 13 with its original battery."

To be clearer, this icon is the Settings app:

...Tap it to open Settings app. Then scroll down to Battery and tap it. Then tap Battery Health... and tell us what the Maximum Capacity % is. If its value is only "––", let us know that.

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Majukas wrote: "I’ve force restarted like 5 times but it just never fixed the situation so I don’t know what’s wrong with it"

Majukas ~ What model of iPhone is it?...

Settings > General > About > Model Name

And what version of iOS is it running?...

Settings > General > About > iOS Version

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Majukas wrote: "It’s an iPhone 12 and it’s running IOS 16.6"

Majukas ~ As an iPhone 12 could be almost 3 years old, does it still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health & Charging

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ashlin ~ Does your iPhone 11 still have its original battery?

And what's the Maximum Capacity % here?...

Settings > Battery > Battery Health

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I’ve force restarted like 5 times but it just never fixed the situation so I don’t know what’s wrong with it

It’s an iPhone 12 and it’s running IOS 16.6

max battery is 80% and I think it still has the original battery aswell