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Samsung Galaxy S21 Ultra Repair Forum

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2 of 6 questions in the past 3 months have no reply - Help answer them!

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2 Answers

My phone gets hot while charging, is it normal or a battery problem?

Samsung Galaxy S21 Ultra 2 Answers

Snazzy 13

Answered

Jun 21, 2026

answered Jun 21, 2026 by Snazzy

1 Answer

Please Help No Network single on S21 Ultra after screen repair

accepted Samsung Galaxy S21 Ultra 1 Answer

Mark Wells 11

Accepted an answer

May 29, 2026

answer accepted May 29, 2026 by Mark Wells

0 Answers

Samsung s21 Ultra phone used to have root loader

unanswered Samsung Galaxy S21 Ultra 0 Answers

Golam Mostofa

Edited by author

May 6, 2026

edited by author May 6, 2026 by Golam Mostofa

1 Answer

My mobile is not opening and there are many lines like 100

Samsung Galaxy S21 Ultra 1 Answer

DanJ 501k

Answered

Apr 28, 2026

answered Apr 28, 2026 by DanJ

0 Answers

Have I damaged micraphone by poking the inlet port?

unanswered Samsung Galaxy S21 Ultra 0 Answers

Dave Johnston 13

Asked

Apr 15, 2026

asked Apr 15, 2026 by Dave Johnston

1 Answer

I have spk3 mtlb mic problem

accepted Samsung Galaxy S21 Ultra 1 Answer

Ali Raza 11

Accepted an answer

Apr 7, 2026

answer accepted Apr 7, 2026 by Ali Raza

1 Answer

Wi-Fi and Bluetooth Randomly Turning Off on Samsung Galaxy S21 Ultra

Samsung Galaxy S21 Ultra 1 Answer

Brittany Morgan

Answered

Apr 30, 2026

answered Apr 30, 2026 by Brittany Morgan

2 Answers

Replaced the battery with an iFixit one and Battey life is worse

accepted Samsung Galaxy S21 Ultra 2 Answers

Ace O

Commented

Jun 13, 2026

commented Jun 13, 2026 by Ace O

2 Answers

Can internal storage be upgraded within?

Samsung Galaxy S21 Ultra 2 Answers

datatechie

Answered

Apr 13, 2026

answered Apr 13, 2026 by datatechie

1 Answer

Why Green line came on the screen?

Samsung Galaxy S21 Ultra 1 Answer

DanJ 501k

Answered

Oct 26, 2025

answered Oct 26, 2025 by DanJ

0 Answers

Screen working inconsistently after battery replacement

unanswered Samsung Galaxy S21 Ultra 0 Answers

Richard M

Asked

Sep 24, 2025

asked Sep 24, 2025 by Richard M

0 Answers

Always writing no sim card

unanswered Samsung Galaxy S21 Ultra 0 Answers

pikudo 1.1k

Commented

Sep 19, 2025

commented Sep 19, 2025 by pikudo

1 Answer

phone keeps turning off and on, getting fairly hot.

accepted Samsung Galaxy S21 Ultra 1 Answer

Justin Bass 11

Commented

Sep 17, 2025

commented Sep 17, 2025 by Justin Bass

1 Answer

My phone gets hot while charging, is it normal or a battery problem?

accepted Samsung Galaxy S21 Ultra 1 Answer

Richard Schofield

Commented

Sep 3, 2025

commented Sep 3, 2025 by Richard Schofield

2 Answers

Screen failure after battery replacement

Samsung Galaxy S21 Ultra 2 Answers

Rich

Answered

May 27, 2025

answered May 27, 2025 by Rich

0 Answers

All cameras failed after rebuild

unanswered Samsung Galaxy S21 Ultra 0 Answers

Thomas Hayes

Edited by author

Apr 26, 2025

edited by author Apr 26, 2025 by Thomas Hayes

0 Answers

Screen turned on once and never again

unanswered Samsung Galaxy S21 Ultra 0 Answers

Francisco Fonseca

Asked

Apr 19, 2025

asked Apr 19, 2025 by Francisco Fonseca

0 Answers

Why is my phone isn't answering to wired earphones

unanswered Samsung Galaxy S21 Ultra 0 Answers

Mohamed Bashiir 13

Asked

Mar 13, 2025

asked Mar 13, 2025 by Mohamed Bashiir

0 Answers

How unlock PIN code on safe mode

unanswered Samsung Galaxy S21 Ultra 0 Answers

Anas omer

Asked

Feb 21, 2025

asked Feb 21, 2025 by Anas omer

0 Answers

Shattered Back, Reboot Loops, and SIM Issues. Can My Phone Be Saved?

unanswered Samsung Galaxy S21 Ultra 0 Answers

jayeff 543k

Commented

Jan 23, 2025

commented Jan 23, 2025 by jayeff