Resolve "Update Rollback warning on FP4"

{% include templates/requirements.md %}

{% include alerts/danger.html content="Ensure that you flash an image with a security patch level greater than the level of the existing security patch. Failure to do so will prevent you from locking your bootloader. " %}

{% include alerts/tip.html content="On your phone you can check the security patch level here `Settings` >> `About Phone` >> `Android Version` >>  `Android security patch level`. Check the level against the level of the security patch on the /e/OS build as given in the `Downloads for the FP4` section below " %}

{% include alerts/danger.html content="The FP4 comes with an anti-rollback feature. Google Android anti-roll back feature is supposedly a way to ensure you are running the latest software version, including the latest security patches.

<br><br>If you try installing a version of /e/OS based on a previous AOSP core version than the one running on your phone, or based on a security patch that is older than the one on your device, you will brick your device.

<br><br>To check the security patch level on your phone with a locked bootloader, prior to installing /e/OS, open your phone `Settings` >> `About Phone` >> `Android Version` >> `Android Security Patch Level`.Then compare it against the level of the security patch on the /e/OS build as visible in the Downloads for the FP4 section below.

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Click the `Details` section to view some examples<br>

<details>

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<strong>Example 1</strong>

<br> * Your FP4 with Google Android has a Security Patch Level saying June 5, 2022

<br> * The /e/OS build available says: /e/OS build : R stable (Security patch: 2022-05-05)

<br> * In this example, the /e/OS build has an older Security Patch level than the origin, so the anti-roll back protection will trigger, and you will brick your phone

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<strong>Example 2</strong>    

<br> * Your FP4 with Google Android has a Security Patch Level saying June 5, 2022.

<br> * The /e/OS build available says: /e/OS build : R stable (Security patch: 2022-06-05)

<br> * In this example, the /e/OS build has the same Security Patch level than the origin, so the anti-roll back protection will pass, and you will be able to install /e/OS with no issues.

</details>

" %}