diff --git a/armsrc/i2c.c b/armsrc/i2c.c
index 162126d76..2b9bac13a 100644
--- a/armsrc/i2c.c
+++ b/armsrc/i2c.c
@@ -219,7 +219,7 @@ static bool I2C_WaitForSim(void) {
     // 8051 speaks with smart card.
     // 1000*50*3.07 = 153.5ms
     // 1byte transfer == 1ms  with max frame being 256bytes
-    if (!WaitSCL_H_delay(10 * 1000 * 50))
+    if (!WaitSCL_H_delay(10 * 1000 * 30))
         return false;
 
     return true;
@@ -626,7 +626,7 @@ int I2C_get_version(uint8_t *maj, uint8_t *min) {
 // Will read response from smart card module,  retries 3 times to get the data.
 bool sc_rx_bytes(uint8_t *dest, uint8_t *destlen) {
 
-    uint8_t i = 3;
+    uint8_t i = 5;
     int16_t len = 0;
     while (i--) {
 
@@ -634,7 +634,6 @@ bool sc_rx_bytes(uint8_t *dest, uint8_t *destlen) {
 
         len = I2C_BufferRead(dest, *destlen, I2C_DEVICE_CMD_READ, I2C_DEVICE_ADDRESS_MAIN);
 
-
         LED_C_ON();
 
         if (len > 1) {