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crwdns2944351:0crwdnd2944351:0Samsung Galaxy S21 Ultra Back Cover Replacementcrwdnd2944351:0crwdne2944351:0

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Conclusion
Compare your new replacement part to the original part—be sure to transfer remaining components and remove adhesive backings from the new part before installing.
***To reassemble your device, follow the instructions in reverse order*** and perform the opposite actions, e.g., "reattach" instead of "removing." Skip steps that use heating and prying, and pay close attention to the 📌 bullets as you work through the steps.
After you've completed the repair, download the Samsung Members App from the Galaxy Store or the Play Store, and ++[document|27502|follow the Samsung Self-Repair document]++ (beginning page 9) to make sure your device is fully functional.
Take your e-waste to an [[E-Waste|R2 or e-Stewards certified recycler|new_window=true]].
Repair didn’t go as planned? Try some [[Troubleshooting Problems After a Repair|basic troubleshooting]], or ask our [link|https://www.ifixit.com/Answers/Device/Samsung%20Galaxy%20S21%20Ultra|Answers community] for help.