How to Fix iPhone Unavailable Without Erase Option [Full Guide]

サミュエル・スペンサー に公開 2026年9月16日iOSのロックを解除する3 分で読める

Why does your iPhone suddenly show an iPhone 利用不可メッセージ? It's confusing and annoying because you cannot access all your photos, apps, and important files inside the locked device. If you're facing an iPhone Unavailable screen with no Erase option available, keep reading. We'll explain why this issue happens and show you 4 practical ways to fix it.

Part 1: Why Does My iPhone Say iPhone Unavailable

When you enter the wrong passcode on your iPhone too many times, you may see the "iPhone Unavailable" message or "iPhone Security Lockout" on the screen. What does Security Lockout mean on iPhone? This is Apple's security feature designed to prevent someone else from accessing your device and protect your personal data.

Common reasons why your iPhone says unavailable include:

• You entered the wrong iPhone passcode multiple times.
• You forgot your current iPhone passcode.
• Someone else tried to unlock your device with incorrect passwords.
• The iPhone was disabled after repeated failed unlock attempts.

Part 2: Why is There No Erase option on iPhone Unavailable Screen

On newer iOS versions, after too many failed attempts, the device may show an "Erase iPhone" option in the bottom right corner. You can reset the device and remove the passcode through this option. If you encounter iPhone Unavailable no Erase option, it may be caused by the following reasons.

• Your iPhone is running iOS 15.2 or lower, where the Erase iPhone feature was not available.
• Your iPhone is running iOS 17 or above, and the Erase option has been replaced by the Forgot Passcode option.
• You're not signed into your Apple ID on your iPhone.
• Find My iPhone is turned off.
• The iPhone is not connected to Wi-Fi or cellular data.
• You have not reached the required number of failed passcode attempts for the erase option to appear.

Part 3: How to Fix iPhone Unavailable Without Erase option - 4 Ways

If your iPhone shows "iPhone Unavailable" but there is no Erase iPhone option, you can still try these 4 ways to regain access.

Method 1: Unlock Unavailable iPhone via Old Passcode

Is it possible to fix iPhone unavailable without losing data? Yes, you may be able to. If you're using iOS 17/18 or later and just changed your passcode, there's a good chance you can still get back in. Apple lets you use your old passcode for up to 72 hours after you change it. So, if you remember the previous one, it's definitely worth trying before you reset your iPhone.

Method 2: Unlock Unavailable iPhone with imyPass iPassGo

If you forgot your passcode and there is no erase option, a professional iPhone unlock tool like imyPass iPassGo can help you bypass the unvailable screen and remove the screen lock effortlessly. It can remove different types of iPhone locks, including screen lock, Activation Lock, carrier lock, or MDM and Screen Time restrictions.

Method 3: Fix Unavailable iPhone with iTunes/Finder

Recovery mode works when the iPhone Unavailable Erase option is missing. You can use a computer to connect your device and restore your iPhone via iTunes or Finder.

• iPhone 8以降: 押してすぐに離す ボリュームアップ button, then ボリュームダウン iPhone 8以降： 側 リカバリモード画面が表示されるまでボタンを押し続けます。
• iPhone 7/7 プラス: 両方を押したままにします ボリュームダウン と 側 buttons simultaneously until the recovery mode screen appears.
• iPhone 6s以前: 両方を押したままにします 家 と 側 iPhone 6s以前：

Method 4: Erase Your Unavailable iPhone Using Find My

If you don't have a computer around, you can remotely erase your iPhone using the Find My app on another device. Just keep in mind that Find My needs to have been turned on before your iPhone became unavailable. If it wasn't, this option won't help much.

結論

「iPhone使用できません」で消去オプションがない場合 この問題はかなり厄介です。次にどうすればよいかわからないときは、本ガイドで紹介する4つの方法を試してみてください。「パスコードをお忘れですか」オプションの利用、iTunes／Finder経由での復元、「探す」を使った消去、あるいは専用ツールの利用などがあります。 iPhoneロック解除ソフトウェア たとえば imyPass iPassGo などです。これらの方法のいずれかで、あまり手間をかけずに再びiPhoneを使えるようになることを願っています。