Google は Android 14 の初回リリース以降、修正と改善を行ってプラットフォームを更新し続け、その後、サポート対象のデバイスにロールアウトします。このリリースは、Quarterly Platform Releases（QPR）から四半期ごとに行われます。QPR は、Feature Drop の一環として、AOSP と Google Pixel デバイスの両方に配信されます。
これらのアップデートには、アプリに影響を与える API の変更は含まれていませんが、最新の QPR ベータ版ビルドのイメージが用意されているため、必要に応じてこれらのビルドでアプリをテストできます（アプリのユーザー エクスペリエンスに影響を与える可能性がある新機能がある場合など）。
リリース済みの安定版のプラットフォームのファクトリー イメージを確認するには、Nexus デバイスと Pixel デバイスのファクトリー イメージをご覧ください。
サポートされている Google Pixel デバイスを使用するデベロッパーは、テストと開発用にデバイスを手動で最新のビルドにアップデートできます。ファクトリー イメージを書き込むにはデバイスを完全にリセットする必要があります。最初に必ずデータをバックアップしてください。ビルドは以下の Google Pixel で利用できます。
- Google Pixel 5a
- Google Pixel 6 および 6 Pro
- Google Pixel 6a
- Google Pixel 7 および 7 Pro
- Google Pixel 7a
- Google Pixel Fold
- Google Pixel Tablet
- Google Pixel 8 および Google Pixel 8 Pro
対応デバイスを最新のビルドに更新するには、下記のリンクと手順をご利用ください。テストと開発用に QPR3 を入手するその他の方法については、Android 14 QPR ベータ版ビルドを入手するをご覧ください。
Android Flash Tool を使用してデバイスに書き込む
Android Flash Tool を使用すると、サポートされている Google Pixel デバイスにシステム イメージを安全に書き込めます。Android Flash Tool は、Chrome や Edge 79 以降など、WebUSB に対応している任意のウェブブラウザで動作します。
Android Flash Tool は、デバイスに書き込む方法を順を追って案内します。ツールをインストールする必要はありませんが、デバイスのロックを解除して、開発者向けオプションで USB デバッグを有効にする必要があります。詳細な手順については、Android Flash Tool のドキュメントをご覧ください。
USB 経由でデバイスを接続し、https://flash.android.com/preview/udc-qpr3-beta2.1 のリンクを使用して Android Flash Tool に移動し、画面上の手順に沿って操作します。
デバイスに手動で書き込む
最新のシステム イメージをダウンロードして、手動でデバイスに書き込むこともできます。テストデバイス用のシステム イメージは、下の表からダウンロードできます。テスト環境をきめ細かく管理する必要がある場合や、自動テストを行うときのように頻繁に再インストールする必要がある場合は、手動でデバイスに書き込む方法が便利です。
デバイスデータをバックアップし、以下の該当するシステム イメージをダウンロードしてから、そのイメージをデバイスに書き込むことができます。
いつでも最新の公開ビルドに戻ることができます。
デバイスのファクトリー イメージ
| デバイス | ダウンロード リンクと SHA-256 チェックサム |
|---|---|
| Google Pixel 5a |
7591c9f6a5115f4f20e693768b55ae09d774f6cea5f7c31afe86b3fd9c28a789 |
| Google Pixel 6 |
b1087d8bc7907f17b9953360894deda6cfd173003f779514e2654409262a8e22 |
| Google Pixel 6 Pro |
c1328b09bc8699145d687b5a2df110638aa880f9accd5c5bcee81423d2ced4f6 |
| Google Pixel 6a |
3de9ea1a58dd6f12992e83442f68cc4fab1e432ea697e8662f809e417589b7d2 |
| Google Pixel 7 |
652dc8b773150fc6fc43a26fcd65527a2648910da36e642116c5548cea9cda26 |
| Google Pixel 7 Pro |
04857dfafd918bc8126052534b41f331adcbbc63f0e3f6977297d795d93e967f |
| Google Pixel 7a |
4f6f80828732aa7d7fa0264c78a96718719520b2c09b244ae257a8b243b13e89 |
| Google Pixel Fold |
8da6440e55a6f2281c00fadf2aa2bfdc47f846643113531732d88e5bb39bc4e0 |
| Google Pixel Tablet |
d1e9d3db1e0d9f0c910e96713c0584515cf0833158d39545aaf6bb6754270fed |
| Google Pixel 8 |
036aee74424bb987d91f529069e86d9fc8a33548b1ab9907fb5aa1d8a577d53a |
| Google Pixel 8 Pro |
b447be9aec55e60637b76f11bfed95019de10775cd464b1bd20e79df4222f741 |
公開ビルドに戻る
Android Flash Tool を使用して、ファクトリー イメージを書き込むことも、Google Nexus デバイスと Google Pixel デバイス用のファクトリー イメージのページから出荷時仕様のシステム イメージを入手して手動でデバイスに書き込むこともできます。
ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。
利用規約
By clicking to accept, you hereby agree to the following: All use of this development version SDK will be governed by the Android Software Development Kit License Agreement (available at https://developer.android.com/studio/terms and such URL may be updated or changed by Google from time to time), which will terminate when Google issues a final release version. Your testing and feedback are important part of the development process and by using the SDK, you acknowledge that (i) implementation of some features are still under development, (ii) you should not rely on the SDK having the full functionality of a stable release; (iii) you agree not to publicly distribute or ship any application using this SDK as this SDK will no longer be supported after the official Android SDK is released; and (iv) you agree that Google may deliver elements of the SDK to your devices via auto-update (OTA or otherwise, in each case as determined by Google). WITHOUT LIMITING SECTION 10 OF THE ANDROID SOFTWARE DEVELOPMENT KIT LICENSE AGREEMENT, YOU UNDERSTAND THAT A DEVELOPMENT VERSION OF A SDK IS NOT A STABLE RELEASE AND MAY CONTAIN ERRORS, DEFECTS AND SECURITY VULNERABILITIES THAT CAN RESULT IN SIGNIFICANT DAMAGE, INCLUDING THE COMPLETE, IRRECOVERABLE LOSS OF USE OF YOUR COMPUTER SYSTEM OR OTHER DEVICE.ダウンロード: Android 14 factory system image
ダウンロードする前に、次の利用規約に同意する必要があります。