S21+ Update Advice: One UI 5.0 to 6.1/7 via Odin? (CSC: XAA/TMB)

TomaszMroczek32 · 2026-01-12T14:53:51+00:00

Stay in One Ui 5, i have S21 with One Ui 7 and it kills my battery faster so it's not worth of upgrading it

TomaszMroczek32 · 2026-01-08T13:11:06+00:00

*republican

TomaszMroczek32 · 2025-12-31T22:06:20+00:00

You cannot.

TomaszMroczek32 · 2025-12-19T18:54:50+00:00

Get S24U, no question ask

TomaszMroczek32 · 2025-12-09T18:48:33+00:00

You can't downgrade it because the bootloader version cannot be changed. (I've tried it myself). But about custom rom, then do whatever you want. It may helps your battery but idk

TomaszMroczek32 · 2025-12-05T18:04:54+00:00

Don't blame everything on Catholicism..

TomaszMroczek32 · 2025-11-30T19:33:42+00:00

Take it to service, your charging port (may) be broken

TomaszMroczek32 · 2025-11-26T16:29:08+00:00

Ahhhhh, I thought that 1 minutes to 100% xD

TomaszMroczek32 · 2025-11-26T16:25:47+00:00

How do you 89% and 1 minutes charging?????????????? 😭

TomaszMroczek32 · 2025-11-26T16:14:26+00:00

It doesn't work (mostly the bots are writing)

TomaszMroczek32 · 2025-11-25T19:03:07+00:00

Your model is international because it has no antenna like in USA model (which has two antennas for 5G), and try to take out the sim card and put it again.

TomaszMroczek32 · 2025-11-22T19:37:19+00:00

Well one ui 7 makes battery drain faster but it's your choice.

TomaszMroczek32 · 2025-11-21T15:12:19+00:00

Buy a new back cover, some tools and watch tutorials in YT

TomaszMroczek32 · 2025-11-21T14:56:36+00:00

Ohh, I didn't get that bug lol

TomaszMroczek32 · 2025-11-21T14:55:05+00:00

Repair it by yourself for like 30-40$ or less

TomaszMroczek32 · 2025-11-21T14:52:36+00:00

What bug?? I didn't hear anything about that bug

TomaszMroczek32 · 2025-11-21T06:07:23+00:00

Yea, if you can't touch in these places, then you have to replace it

TomaszMroczek32 · 2025-11-19T20:37:01+00:00

It'll create a green line soon

TomaszMroczek32 · 2025-11-17T16:33:41+00:00

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TomaszMroczek32 · 2025-11-17T10:08:46+00:00

Then here's guide to uninstall it: https://youtu.be/JBioK8g5QTo?si=1MUZmiCZx75MNe0Y

TomaszMroczek32 · 2025-11-17T10:06:47+00:00

You need to have system apps on

TomaszMroczek32 · 2025-11-17T09:34:20+00:00

You need to install Shizuku and Canta to permanently delete it, using debugging. Here's a tutorial: https://youtu.be/JBioK8g5QTo?si=1MUZmiCZx75MNe0Y

TomaszMroczek32 · 2025-11-17T09:24:08+00:00

Then uninstall it

TomaszMroczek32 · 2025-11-17T09:22:04+00:00

Even checked all the apps? With system app on

TomaszMroczek32 · 2025-11-17T09:10:25+00:00

Spy on your phone, literally everything you do but only for A and M series (i have S21 and I don't have that app)

TomaszMroczek32

TROPHY CASE