Backup / Restore does not respect umlauts

[Harald Bacik]

Hey
I am new here in this forum.

I have an old mySQL 5 Server (5.5.28)
The access is by remote.
Within the server, I have a database, which has the following settings:
Charset = latin1
Collation Name = latin1_german1_ci

I do a mysqldump, like this (from my new computer):
mysqldump -u -p -h --skip-set-charset --default-character-set=latin1 --routines -r ~DESTINATION FILE~

This creates my sql file as expected.
When I open the file with Notepad++, it is opened as ANSI, where all umlauts are correct shown.

My local mySQL Server is Version: 8.4.4
The database table has charset: utf8mb4
and Collation Name = utf8mb4_0900_ai_ci.

I try to import the file with the following command:
mysql -u -p -h --default-character-set= utf8 ~databaseName~ < ~DataFile~

but the problem is, that the umlauts are not shown correctly.
For Example.
The original value is 'Nürnberg'
The value I get in my database = 'Nürnberg'
And the hex of the new value = 4EC3BC726E62657267

I also tried to use this on my new server:

SET character_set_client = latin1;
SET character_set_connection = latin1;
SET character_set_results = latin1;

But without positive result.
Can someone please help me.

THX a lot in advance