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Description
Samsung Galaxy S21 Ultra Battery ReplacementDegraded cells in the Samsung Galaxy S21 Ultra lose capacity quietly until the phone cannot hold a useful charge. A new battery is a quick, contained fix that leaves your data untouched. We dispose of the old cell responsibly and fit a fresh one. Turnaround: 1 working day, subject to stock and workload 6 month warranty on this repair Walk in near Liverpool Street Station or UK mail in service Signs your Samsung Galaxy S21 Ultra needs this repair Only
Degraded cells in the Samsung Galaxy S21 Ultra lose capacity quietly until the phone cannot hold a useful charge. A new battery is a quick, contained fix that leaves your data untouched. We dispose of the old cell responsibly and fit a fresh one.
- Turnaround: 1 working day, subject to stock and workload
- 6-month warranty on this repair
- Walk-in near Liverpool Street Station or UK mail-in service
Signs your Samsung Galaxy S21 Ultra needs this repair
- Only reliable while plugged in
- Percentage jumping around
- Getting warm in normal use
- Slow or stalling charging
- Shutting down with charge still showing
What is included
- Safe removal of the worn battery
- Fitting of a quality replacement cell
- Charging and power-stability testing
- Full function check before handover
- 6-month warranty
How to confirm your model
Check the model number in your device settings, or bring it in and we will confirm the exact Samsung Galaxy S21 Ultra before any work begins. If you are unsure which repair you need, our team will advise.
Before you book
- If the screen or back is already lifting, the cell may be swollen, so book promptly and avoid charging it.
- If the device is completely dead, we run a quick diagnosis before confirming the battery.
- If the phone has had liquid exposure, a battery may not resolve everything and we check first.
Our repair process
- Book or drop in: start online or come to the Liverpool Street workshop.
- Assessment: we confirm the fault and the right part before starting.
- Repair: the part is fitted carefully and the device reassembled.
- Testing and return: a full check, then collect in store or by tracked post.
Why choose us
- Repair workshop near Liverpool Street, established since 2015
- Clear pricing with no hidden extras
- Every repair tested before it is handed back
- No data loss, this is a hardware repair
Related Samsung Galaxy S21 Ultra repairs
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Context, Strategies and Wisdom in a single package
Format: Kindle
This was my first book I have read by this particular author. I had spent some time looking for a comphrensive approach to Cyber Security and found many other texts to be lacking. Certain aspects are well documented, but no single source that brought it all together. This is exactly what First Principles brings to the table. As a practicioner that looks for better ways to formulate the objectives of SecOps Use Cases I have found the methods presented in this book to be immensely helpful. I have also given copies aways as a gifts to students who are just entering the field as this is by far the best intro to the long history of Cyber Security that combines the best direction for the future. The historical context that the author brings through first hand experience is beyond a treasure trove. It has been said many times in cheezy ads, but honestly, if you only read one book on Cyber Security make it this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 21, 2023
★★★★★ 5
My title review
Format: Paperback
Great book , up to date and very good reading
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2025
★★★★★ 5
Every cybersecurity professional should read this book, probably twice
Format: Audiobook
This is the Phoenix Project for cybersecurity professionals.
Every chapter of this book brought clarity and a new perspective from the way industry approaches aspects of cybersecurity. The book won’t be all things to everyone, nor is it perfect, but its the single most practical and effective approach to cybersecurity I’ve found. In a time where IT is excruciatingly complex and securing environments seems like an impossible task, this has been invaluable and has affected how I think about the future.
Im not associated with the author in any way. Im just in a leadership role facing these challenges every day and I think this book may some day become mandatory reading in the field.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 23, 2024
★★★★★ 5
Actionable and pragmatic
Format: Paperback
Rick Howard's Cybersecurity First Principles is an excellent read on numerous fronts. First, I love the historical references to our profession. Second, Rick provides actionable guidance on how to make our organizations and the security programs we build more resilient. The pragmatism of Rick's recommendations cannot be overstated. You'll need a couple of pens handy given how much of the book you are likely to underline as on-going references. This is a must-read book.
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Reviewed in the United States on March 5, 2024
★★★★★ 5
Great read. Well laid out.
Format: Paperback
You can tell Rick has years of experience in the field and this book is a great distillation and alignment of security to first principle thinking. Only thing better than the book IMO is the clear passion of the author. This is certainly a must read for any cybersecurity professional.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 5, 2023
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