Quick answer

Use branches on Android to test edits without damaging the main project folder or current working version.

Use this page when the problem matches Git Branches, not as a general reinstall guide.

For Git Branches, focus on GitHub and Git workflow and use the output to decide the next small fix instead of reinstalling everything.

What to check

Before changing Git Branches, confirm the folder with pwd and compare it with the command you copied.
For Git Branches, keywords that usually matter are: Git, Branches.
If the first command for Git Branches gives a different error, follow the new clue instead of forcing this guide.

For Git Branches, replace placeholders only when they appear in the command.

cd ~/DedSec
git branch
git switch -c test-change
git status
git switch main

cd ~/DedSec — moves into the folder where the next command must run for Git Branches.
git branch — checks the part of the GitHub and Git workflow workflow that usually causes this issue for Git Branches.
git switch -c test-change — checks the part of the GitHub and Git workflow workflow that usually causes this issue for Git Branches.
git status — shows the current branch and whether files are staged, changed, or untracked for Git Branches.
git switch main — checks the part of the GitHub and Git workflow workflow that usually causes this issue for Git Branches.

Change one thing at a time while testing Git Branches.
If the Git Branches error changes, read the new clue instead of repeating the old fix.
Keep screenshots or copied terminal text for Git Branches; they make paid help faster if you need it.

Running the Git Branches command from the home folder when the project is somewhere else.
Following a desktop Linux answer that ignores Android storage paths while fixing Git Branches.
Closing Termux before copying the output that explains Git Branches.

If git branches GitHub still blocks the upload or clone, use the Store and send the command, the branch name, and the full terminal output.