Oneplus phone update introduces hardware anti-rollback: Difference between revisions

The OnePlus ColorOS 16.0.3.501 Anti-Rollback Fuse Incident refers to the January 2026 deployment of firmware updates by [[OnePlus]] that introduced a hardware-level anti-rollback mechanism. This permanently prevents users from downgrading their devices or installing custom ROMs. The updates, which affected the OnePlus 13, OnePlus 13T, and OnePlus 15, irreversibly blow electronic fuses inside the device's [[Qualcomm]] processor. Any subsequent attempt to install older firmware results in a permanent "hard brick" - the device becomes unusable. This cannot be repaired through standard methods.<ref name="xda-warning">{{cite web |url=https://xdaforums.com/t/critical-warning-coloros-16-0-3-501-updates-permanent-anti-rollback-arb-fuse-blown-do-not-downgrade.4775930/ |title=[CRITICAL WARNING] ColorOS 16.0.3.501 Updates = PERMANENT Anti-Rollback (ARB) & Fuse Blown. DO NOT DOWNGRADE! |website=XDA Forums |date=January 19, 2026 |access-date=January 22, 2026}}</ref>

OnePlus has not issued any official statement addressing the mechanism.<ref name="android-authority">{{cite web |url=https://www.androidauthority.com/oneplus-arb-protection-3633783/ |title=New OnePlus updates can permanently lock your phone's software future |author=Adamya Sharma |website=Android Authority |date=January 19, 2026 |access-date=January 22, 2026}}</ref>

As of 23 January, 2026, OnePlus and OPPO have issued no official statement addressing the anti-rollback fuse mechanism. No press releases, community forum responses, or social media acknowledgments explain the policy or respond to reports of bricked devices.<ref name="android-authority-opinion">{{cite web |url=https://www.androidauthority.com/oneplus-fan-modding-bootloader-changes-breaking-point-3634505/ |title=I've been a OnePlus fan for 12 years, but this latest update is my breaking point |author=Dhruv Bhutani |website=Android Authority |date=January 23, 2026 |access-date=January 26, 2026}}</ref>   

On January 27th 2026, in response to Android Authority OnePlus issued the following statement.<ref>{{Cite web |last=Simons |first=Hadlee |date=2026-01-27 |title=Here's why OnePlus bricked your phone when you tried downgrading it |url=https://www.androidauthority.com/oneplus-brick-phones-statement-3635475/ |url-status=live |access-date=2026-01-27 |website=Android Authority}}</ref><blockquote>To further strengthen device security, we’ve temporarily paused the ability to downgrade from 16.0.2.50x software builds to older builds. We will be restoring the ability to downgrade software builds in our next routine software update, but in the meantime customers looking to downgrade their build can contact OnePlus after sales channels directly.</blockquote>