Samsung Galaxy S21 Ultra (5G) | Magisk Rooted Phone
Samsung Galaxy S21 Ultra (5G) | Magisk Rooted Phone
Available to order
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Device facts
- Chipset
- Exynos 2100 (5 nm) (UK/European version)
- Model released
- 2021
- Maker's security updates
- Not listed in Samsung’s current regular security update schedule (checked 2 October 2026). (all phones)
Magisk uses an unlocked bootloader. Banking, payment and other integrity-checked apps may not work; system updates can remove root. Samsung Knox-dependent features may stop working permanently after modification.
Samsung Galaxy S21 Ultra (5G) — Magisk
Samsung Galaxy S21 Ultra (5G) supplied with Magisk preparation. Use Magisk to control which Android apps receive root access, with the installation work completed before dispatch. Select the hardware and condition configuration above.
Hardware specifications
- Model: Samsung Galaxy S21 Ultra (5G)
- Brand: Samsung
- Front camera resolution: 40 MP
- RAM: 12 / 16 GB
- Rear camera resolution: 12 MP + 108 MP + 10 MP + 10 MP
- Storage capacity: 128GB; choose the supplied capacity from the storage options.
- Screen resolution: 3200 x 1440 pixels
- Device weight: 227 g (Sub6) / 229 g (mmWave)
- Colour: Phantom Black; choose the supplied colour from the options.
- Screen size: 6.8 inches
Camera specifications describe the original hardware; camera apps, processing features and lens support depend on the installed OS. Weight excludes packaging and accessories. Storage and RAM capacities are manufacturer labels; usable space is lower.
Hardware reference: Device specification reference
Software and setup choices
- Installed software: Samsung One UI (Android) on a firmware version compatible with the prepared root configuration. Magisk and its manager app are installed before dispatch. Root access is granted to apps through the root manager.
- Root choice: this listing supplies Magisk. It is not an unrooted or Google-free configuration. Choose a separate ROM listing if you need a different operating system.
- Google apps: rooting itself does not remove Google Play or Google services. Existing Google apps are retained on the compatible Android build; a Google-free setup is not included in this listing.
Bootloader state
The bootloader remains unlocked for this rooted configuration. Do not relock it while modified boot, kernel or system images are installed; restoring the manufacturer’s locked state requires its exact recovery procedure and can erase data.
Compatibility to check before ordering
- Samsung root preparation requires a bootloader-unlockable hardware variant and compatible firmware. Modified boot images can permanently trip Samsung’s Knox Warranty Bit; Samsung Pay, Secure Folder and other Knox-dependent functions can stop working. Restoring stock software does not reset the Knox bit.
- We prepare Samsung rooted orders on compatible Android 15 or earlier firmware. A region/carrier variant or later firmware with no OEM-unlock support is not interchangeable with an eligible unit.
- Banking, payment, work-profile, streaming and game apps may reject a modified device or depend on Google services. Play Integrity, DRM quality and future app compatibility are not guaranteed by root, a custom ROM or a bootloader setting.
Updates and support
Back up before a system update. Check the update instructions for this exact firmware and root manager, retain the matching original boot images where required, and update root components and modules only when they support the new build. An ordinary OTA can replace the modified boot image or kernel and remove root. Contact us before accepting an update if you need the prepared configuration preserved.
Condition and what is included
- Choose the cosmetic condition shown for the available configuration, or contact us if the grade is not specified.
The selected device, the software preparation described here and protective packaging. A mains charger, charging cable, case, stylus, dock or other accessory is included only if expressly listed or added to your order. Third-party paid apps, accounts and subscriptions are separate.
Preparation, delivery and returns
Devices are prepared to order. Your selected setup is installed and function-checked before dispatch. Our standard pre-built device preparation target is 1–3 working days, with up to 5 working days allowed for preparation. Working days exclude UK weekends and public holidays. Delivery time is additional; tracking is sent after dispatch. See our Shipping and Delivery Policy for current delivery options and Return and Refund Policy for return eligibility.
Official device and software references
- Samsung model specifications — Samsung Galaxy S21 Ultra (5G)
- Magisk installation and update guidance
Compare devices and read the guides
Magisk rooted phones and tablets
Original hardware support and safety
Samsung manuals and model support · Contact Samsung. Select the manual for the exact regional model. Read the manufacturer’s safety information for charging, battery, heat, hearing and radio precautions.
Use compatible manufacturer-approved charging equipment. Do not charge a wet device or use damaged charging equipment. Keep charging equipment ventilated.
Manufacturer manuals describe the original hardware and software. The software installed for your order is described in this listing. Custom software, rooting or jailbreaking can change security, app compatibility and update behaviour. Follow the instructions for the supplied build before updating or resetting it. Original manufacturer documentation alone does not establish conformity of a modified configuration.
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