I have a program that shares files between my laptop and my phone. It works well, except for apostrophes.

When I type an apostrophe ' on my laptop, it becomes ’ on my phone. And when I type 's on my phone, it becomes 痴 on my laptop.

Apparently the phone turns the apostrophe (U+0027) into a right single quote (U+2019), then bungles bytes in the UTF-8 encoding of U+2019 as three Windows-1252 characters. The bytes E28099_hex are interpreted as â (E2_hex), € (80_hex), and ™ (99_hex).

When I type 's on my phone, it is encoded as two Windows-1252 characters 92_hex and 73_hex. Then by the time the text appears on my laptop, the bytes 9273_hex are interpreted as a Shift-JIS encoding of the CJK character 痴 (U+75F4).