diff --git a/drivers/led/ckled2001.c b/drivers/led/ckled2001.c
index 1651628175..a99b479d1c 100644
--- a/drivers/led/ckled2001.c
+++ b/drivers/led/ckled2001.c
@@ -36,7 +36,7 @@
 #endif
 
 // Transfer buffer for TWITransmitData()
-uint8_t g_twi_transfer_buffer[20];
+uint8_t g_twi_transfer_buffer[65];
 
 // These buffers match the CKLED2001 PWM registers.
 // The control buffers match the PG0 LED On/Off registers.
@@ -72,27 +72,26 @@ bool CKLED2001_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
 bool CKLED2001_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
     // Assumes PG1 is already selected.
     // If any of the transactions fails function returns false.
-    // Transmit PWM registers in 12 transfers of 16 bytes.
-    // g_twi_transfer_buffer[] is 20 bytes
+    // Transmit PWM registers in 3 transfers of 64 bytes.
 
-    // Iterate over the pwm_buffer contents at 16 byte intervals.
-    for (int i = 0; i < 192; i += 16) {
+    // Iterate over the pwm_buffer contents at 64 byte intervals.
+    for (uint8_t i = 0; i < 192; i += 64) {
         g_twi_transfer_buffer[0] = i;
-        // Copy the data from i to i+15.
+        // Copy the data from i to i+63.
         // Device will auto-increment register for data after the first byte
         // Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
-        for (int j = 0; j < 16; j++) {
+        for (uint8_t j = 0; j < 64; j++) {
             g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
         }
 
 #if CKLED2001_PERSISTENCE > 0
         for (uint8_t i = 0; i < CKLED2001_PERSISTENCE; i++) {
-            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, CKLED2001_TIMEOUT) != 0) {
+            if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 65, CKLED2001_TIMEOUT) != 0) {
                 return false;
             }
         }
 #else
-        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, CKLED2001_TIMEOUT) != 0) {
+        if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 65, CKLED2001_TIMEOUT) != 0) {
             return false;
         }
 #endif
diff --git a/keyboards/converter/a1200/a1200.h b/keyboards/converter/a1200/a1200.h
index ae99809e09..3f7defb244 100644
--- a/keyboards/converter/a1200/a1200.h
+++ b/keyboards/converter/a1200/a1200.h
@@ -35,7 +35,7 @@
     K0A,      K0B,                K0C,                     K0D,      K0E,                        K0I,      K0J \
 ) \
 { \
-/* "Q" */ { K3A,   K3B,   K3C,   K3D,   K3E,   K3F,  K3G,   K3H,  K3I,   K3J,   K3K,   K3L,   K3M,  K2O,   K0F,   K4P }, \
+/* "Q" */ { K3A,   K3B,   K3C,   K3D,   K3E,   K3F,  K3G,   K3H,  K3I,   K3J,   K3K,   K3L,   K3M,  K2O,   K0F,   K1A }, \
 /* "A" */ { K2B,   K2C,   K2D,   K2E,   K2F,   K2G,  K2H,   K2I,  K2J,   K2K,   K2L,   K2M,   K2N,  K4P,   K0H,   K0B }, \
 /* "Z" */ { K1B,   K1C,   K1D,   K1E,   K1F,   K1G,  K1H,   K1I,  K1J,   K1K,   K1L,   K4O,   K0C,  K4O,   K0G,   K0A }, \
 /* PAD */ { K4U,   K2T,   K3T,   K2S,   K1Q,   K0J,  K3S,   K2R,  K1P,   K1R,   K3R,   K2Q,   K1O,  K0I,   K3U,   K1A }, \
diff --git a/keyboards/keychron/q3/config.h b/keyboards/keychron/q3/config.h
index 59b9e0f54b..4c62c589bd 100644
--- a/keyboards/keychron/q3/config.h
+++ b/keyboards/keychron/q3/config.h
@@ -31,6 +31,13 @@
 #define DRIVER_ADDR_1 0b1110111
 #define DRIVER_ADDR_2 0b1110100
 
+/* Increase I2C speed to 1000 KHz */
+#define I2C1_TIMINGR_PRESC 0U
+#define I2C1_TIMINGR_SCLDEL 3U
+#define I2C1_TIMINGR_SDADEL 0U
+#define I2C1_TIMINGR_SCLH 15U
+#define I2C1_TIMINGR_SCLL 51U
+
 /* Scan phase of led driver set as MSKPHASE_9CHANNEL(defined as 0x03 in CKLED2001.h) */
 #define PHASE_CHANNEL MSKPHASE_9CHANNEL