GoKawiilRooting a Googlebook disables phone-to-laptop app casting, Magisk creator confirms
John Wu, creator of Magisk and a Google employee, said on X that rooting a Googlebook blocks the app-casting feature that lets Android phones send apps to the laptop. He explained the phones refuse to cast because a rooted Googlebook fails hardware key attestation checks. Googlebooks have been on sale for about a month and are marketed partly on this cross-device casting capability.
GoKawiil's interpretation of the reporting above, not reported fact.
App casting is one of the headline features drawing buyers to Googlebooks, so losing it to rooting could discourage power users from modifying their devices. The restriction mirrors how other sensitive services like banking apps and Google Wallet already block rooted Android phones, suggesting Google is extending similar security gating to its new laptop line, likely to prevent compromised devices from receiving cast app data.
- Rooting a Googlebook disables casting apps from a connected Android phone
- The block stems from failed hardware key attestation on rooted devices
- Casting is a marquee feature of Googlebooks, making this a notable tradeoff for tinkerers
Google Chromebook Plus laptop — If you're curious about the cross-device casting features discussed here, a Chromebook Plus is a great way to experience Google's deep Gemini integration and Android app support firsthand. Just remember to keep it unrooted if you want to preserve seamless phone-to-laptop app casting.
See Google Chromebook Plus laptop on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: androidauthority.com, 2026-11-02
Published there as: “You’ll lose this critical cross-device feature if you root your Googlebook”
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