diff --git a/data/devices/logitech-g305.device b/data/devices/logitech-g305.device
deleted file mode 100644
index ac836597..00000000
--- a/data/devices/logitech-g305.device
+++ /dev/null
@@ -1,7 +0,0 @@
-[Device]
-Name=Logitech Gaming Mouse G305
-DeviceMatch=usb:046d:4074
-Driver=hidpp20
-
-[Driver/hidpp20]
-Quirk=G305
diff --git a/meson.build b/meson.build
index 952f0d5c..7bc995e5 100644
--- a/meson.build
+++ b/meson.build
@@ -294,7 +294,6 @@ data_files = files(
 	'data/devices/logitech-g300.device',
 	'data/devices/logitech-g302.device',
 	'data/devices/logitech-g303.device',
-	'data/devices/logitech-g305.device',
 	'data/devices/logitech-g402.device',
 	'data/devices/logitech-g403-hero.device',
 	'data/devices/logitech-g403-wireless.device',
diff --git a/src/hidpp20.c b/src/hidpp20.c
index 9f08366c..058f3c06 100644
--- a/src/hidpp20.c
+++ b/src/hidpp20.c
@@ -2620,15 +2620,6 @@ hidpp20_onboard_profiles_initialize(struct hidpp20_device *device,
 						  HIDPP20_USER_PROFILES_G402,
 						  profiles->sector_size,
 						  data);
-
-	if (rc && device->quirk != HIDPP20_QUIRK_G305) {
-		/* The G305 has a bug where it throws an ERR_INVALID_ARGUMENT
-		   if the sector has not been written to yet. If this happens
-		   we will read the ROM profiles.*/
-		read_userdata = false;
-		goto read_profiles;
-	}
-
 	if (rc < 0)
 		return rc; // ignore_clang_sa_mem_leak
 
@@ -2662,7 +2653,6 @@ hidpp20_onboard_profiles_initialize(struct hidpp20_device *device,
 		read_userdata = false;
 	}
 
-read_profiles:
 	for (i = 0; i < profiles->num_profiles; i++) {
 		if (read_userdata) {
 			hidpp_log_debug(&device->base, "Parsing profile %u\n", i);
diff --git a/src/hidpp20.h b/src/hidpp20.h
index 759872f8..743145b3 100644
--- a/src/hidpp20.h
+++ b/src/hidpp20.h
@@ -83,8 +83,8 @@ hidpp20_device_destroy(struct hidpp20_device *device);
 
 enum {
 	HIDPP20_QUIRK_NONE,
-	HIDPP20_QUIRK_G305,
 }
+#define HIDPP20_QUIRK_G305				1
 
 /* -------------------------------------------------------------------------- */
 /* 0x0000: Root                                                               */
diff --git a/src/libratbag-data.c b/src/libratbag-data.c
index 738d56d0..7bef8ec5 100644
--- a/src/libratbag-data.c
+++ b/src/libratbag-data.c
@@ -166,10 +166,6 @@ init_data_hidpp20(struct ratbag *ratbag,
 
 	str = g_key_file_get_string(keyfile, group, "Quirk", NULL);
 	data->hidpp20.quirk = HIDPP20_QUIRK_NONE;
-	if (str) {
-		if (streq(str, "G305"))
-			data->hidpp20.quirk = HIDPP20_QUIRK_G305;
-	}
 }
 
 static void