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Solo developer reports rooting and unlocking a Chromecast 4K via modified GhostLock exploit

1 article1 sourcesince Oct 27Last article

Overview

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Jumar Macato says he rooted and unlocked the bootloader of a Chromecast 4K with Google TV (codename sabrina) using a customized GhostLock CVE exploit, with help from DeepSeek.

He reports the method works on the October 2025 security patch. He says he could not test it on the August 2026 update because he does not have that firmware on his device.

Macato advises keeping the dongle's firmware version as low as possible, because he says the exploit's entry point depends on it.

Written by AI from the articles below · updated Oct 27, 11:35 AM ET

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Latest developmentOct 27, 2:37 AM ET
Solo developer roots and unlocks a Chromecast 4K with Google TV

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The articles in this story. Times are ET.

Oct 27
  1. Jumar MacatoX
    Solo developer roots and unlocks a Chromecast 4K with Google TV

    AIA solo developer says they rooted and unlocked the bootloader of a Chromecast 4K with Google TV (codename sabrina) using a customized GhostLock CVE exploit, with help from DeepSeek. They report success on the October 2025 security patch and say the device must stay on an older firmware version for the exploit entry point to work.

    Video from @jumarmacato's post

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