SIM908 GPS STATUS “Location Unknown” Error

I'm using a SIM908 module on a custom board and am having trouble getting the GPS location from it. Everything else works on the module. I can send SMS, make calls and send and receive data from a webpage. But GPS doesn't seem to work. I am using the antenna pad directly on the chip with a passive antenna.

When I call AT+GPSSTATUS? I receive Location Unknown no matter what I do. I tested this outdoors with clear view to the sky. I expected it would at least give Location Not Fix but Location Unknown seems to indicate GPS is not on, even though I call AT+CGPSPWR=1 and AT+CGPSRST=0 and get "OK" back almost every time. A few times, it has returned ERROR GPS READY, which I can't find anywhere in the datasheets, but I assume is due to not having reset the SIM908 while testing new code.

I have posted my test code below. Am I missing something?

// DDDR initializations (not included)
// UART Initialization
uart0_init(UART_BAUD_SELECT(UART_BAUDRATE, F_CPU));
sei();
_delay_ms(500);
// GSM Power on
PORTD |= (1<<PORTD3);
_delay_ms(1100);
PORTD &= ~(1<<PORTD3);
_delay_ms(2300);
UWriteString("AT");
// Returns: "AT" and "OK"
// So far all good
_delay_ms(1000);
// GPS Power on
UWriteString("AT+CGPSPWR=1\r");
// Returns "OK"
_delay_ms(10000);
UWriteString("AT+CGPSRST=0\r");  // Have tried with =1 with no luck
// Returns "OK"
_delay_ms(10000);
// VERY LONG DELAY
_delay_ms(30000);
_delay_ms(30000);
_delay_ms(30000);
_delay_ms(30000);
_delay_ms(30000);
_delay_ms(30000);
// GPS STATUS
UWriteString("AT+CGPSSTATUS?\r");
// Returns: "Location Unknown"
_delay_ms(10000);
UWriteString("AT+CGPSINF=2\r");
// Returns: "2,160745,0.000000,N,0.000000,E,0,0,99.989998,187.000000,M,-187.000000,M,,0000