Aug 9, 2014 · The host is missing here, so it will resolve against our server, so these UxFFFDs will get sent up as UTF-8 hex-encoded "%EF%BF%BD" sequences, ...

Character name, REPLACEMENT CHARACTER ; Hex code point, FFFD ; Decimal code point, 65533 ; Hex UTF-8 bytes, EF BF BD ; Octal UTF-8 bytes, 357 277 275.

Aug 20, 2021 · Hi there. I'm reading serial data using the serial component. However, from time to time characters are replace by a white question mark on ...

Sep 18, 2020 · But on running this, the three-character region above is shown to be encoded as: EF BF BD EF BF BD EF BF BD EF BF BD EF BF BD EF BF BD. which ...

May 14, 2021 · A leading surrogate by itself is invalid, so it gets replaced with the Unicode Replacement Character, U+FFFD. This is converted to the three UTF ...

Sep 25, 2020 · ... EF BF BD 50 4e… it has replaced 89 with EF BF BD. The encoding on png_string is still UTF-8 and on the textarea.value is UTF-8. What ...

Feb 17, 2011 · The three characters correspond to the bytes EF BF BD (in hex), which is the utf-8 encoding of the Unicode character U+FFFD REPLACEMENT ...

The question marks here are a problem because they represent values in our data that are not valid characters, we don't know what those bytes mean.