AdBreak

AdBreak is jailbreak released on 24 Sep 2025 for ad-enabled Kindle devices on firmware 5.18.1 → 5.18.5. It leverages an exploit related to CVE-2012-3748. This page gives the essential facts, a compact install checklist, how to enable ads if needed, and key troubleshooting notes. Read everything before you begin.

Official release & resources

• Release date: 24 Sep 2025
• Maintainer: @hhhhhhhhh
• Exploit base: CVE-2012-3748
• Supported firmware: 5.18.1 – 5.18.5 (some micro-patches may block the exploit)
• Requires: Special Offers (ads) active on the lockscreen

• PC + USB cable (you will copy/replace the device .assets folder)
• Kindle must be registered and not blacklisted
• Kindle must display Special Offers (ads) on the lockscreen
• Device firmware must be in the supported range (see above). If ≤ 5.18.0.2, use WinterBreak instead.

Do not proceed without verifying the above—especially the presence of ads and correct firmware.

1. Download the latest AdBreak package from the official release page.
2. Confirm ads: keep the Kindle online until ads appear on the lockscreen. If no ads appear, a factory reset can sometimes help (see Troubleshooting).
3. Enable airplane mode after ads are visible.
4. Open lockscreen menu → View all ads to confirm multiple Special Offers are listed.
5. Copy .assets – connect Kindle to PC and copy the device's .assets folder (backup the original).
6. Unpack AdBreak and merge its files into the copied .assets folder on your PC.
7. Run replace helper:
   • Windows – run replace.bat
   • macOS / Linux – run the provided terminal command to place the exploit HTML into matching ad folders (example in the release)
8. Replace device assets: delete the original .assets on the Kindle and copy the modified folder back.
9. Trigger exploit: unplug the Kindle, tap the modified ad, follow prompts; the jailbreak script should run at the final popup.

Backup your original .assets folder and any data before modifying anything.

If your device shipped without ads you can often re-enable them via your Amazon account:

1. Amazon → Manage Your Content and Devices → Preferences → Country/Region: select a supported region (US, UK, DE, FR, IT, ES, JP, CN).
2. Add a matching billing address and a payment method (card required; usually no charge).
3. Enable Special Offers for your device and sync – ads should populate the lockscreen after some time.

Important: Kindle Scribe and Colorsoft cannot be made ad-enabled and are not compatible with AdBreak.

FAQ

• The JB does not automatically remove advertisements—see Marek’s scriptlet.
• It will never work on the CS/Colorsoft; ads cannot be re-enabled there.
• No, this is not “UJ”/“Unnamed Jailbreak”. That is separate.
• “Is there a way to make my device ad supported?” (See below.)

Common Issues

• Can’t find the system folder: On mass-storage Kindles, if you cannot see the system folder, navigate to the path manually or follow a guide to reveal protected system folders.
• “Bang!” shows but the jailbreak doesn’t run: Check the .assets folder on the Kindle—jb.sh and patchedUks.sqsh must be present.

Needed for jailbreak, safe to remove later.

1. Switch account region: Go to Manage Your Content and Devices → Preferences → Country/Region Settings → Change. Select one of: US, UK, DE, FR, IT, ES, JP, CN, AU. Use valid details (address, phone, email).
2. Add payment method: Set a default credit card and billing address matching the chosen region. No charge should occur.
3. Enable special offers: In your Amazon account, turn on Special Offers for your Kindle.
4. Sync Kindle: Connect to Wi-Fi—ads will eventually appear on the lockscreen.

Notes:

• If your Kindle originally had no ads, re-disabling later is free.
• If your Kindle is an ads model, disabling normally costs a one-time fee, but it can be removed post-jailbreak with a script.

• Penguins184: This guide
• Ceoz: Enable-ad findings

Summary: AdBreak is a targeted jailbreak for ad-enabled Kindles on firmware 5.18.1–5.18.5. It requires Special Offers and a PC to replace the device .assets. Verify prerequisites, back up originals, and consult community threads for model-specific advice before you proceed.