Set uBlox baud rate to 115200


static const uint8_t ubloxInit[] =
{
0xB5,0x62, 0x06, 0x00, 0x14, 0x00, 0x01, 0x00, 0x00, 0x00, 0xD0, 0x08, 0x00, 0x00, 0x00, 0xC2, 0x01, 0x00, 0x07, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0x7E
};

for (int i=0; i {
Serial.write(ubloxInit[i]);
}

Rate to 2Hz:

0xB5, 0x62, 0x06, 0x08, 0x06, 0x00,0xF4,0x01,0x01,0x00,0x01,0x00,0x0B,0x77