[LG Optimus 4X HD] SimonTS:
Or try the aGPS as by Derek Gordon;

http://derekgordon.com/android-how-tos/a-gps-worldwide-patch

http://xdaforums.com/showthread.php?p=18096764

Simply copy this to a text file on your phone and replace the /etc/gps.conf file with it, then change the permissions to 644 and reboot the phone.

##################################################
### NTP IS NETWORK TIME PROTOCOL AND PROVIDES ###
### A TIME-HACK TO DEVICES THAT HAVE SYNCING ###
### MADE READLIY POSSIBLE. MANY XDA PATCHES ###
### MISINTERPRET WHAT NTP IS AND IMPORTANCE. ###
### NTP PACKETS HAVE BUILT-IN MECHANISMS FOR ###
### TRANSMISSION LOSS. NTP PACKETS ARE VERY ###
### SMALL. LASTLY, NTP MATTERS FOR PARSING ###
### THE XTRA.BIN. BUT, IT ONLY MATTERS WHEN ###
### YOUR DEVICE HAS ITS TIME EXTREMELY OFFSET ###
### COMPARED TO REALITY. THUS, I BUILD THIS ###
### PATCH FOR WORLDWIDE OPERATION. RARELY ###
### WOULD LOCAL NTP SERVERS BE REQUIRED. ###
##################################################

NTP_SERVER=ntp.derekgordon.com

###

##################################################
### AGPS AND XTRA TELL THE AGPS DAEMON WHERE ###
### IT MAY LOCATE THE AGPS DATA. THE DATA ###
### OPERATES AS AN ALMANAC WITH THE LOCATION ###
### OF GPS SATS STORED WITHIN IT. THIS DATA ###
### IS ONLY VALID FOR 24 HOURS. IT WILL BE ###
### DOWNLOADED AND CACHED. IT IS NO LONGER ###
### KEPT IN THE /DATA/ PARTITION PERMANTENTLY. ###
### THERE IS NO POINT TO KEEP IT THERE! ###
##################################################
### MY SERVER PROCESSES THE XTRA.BIN EVERY 30 ###
### MINUTES. TYPICALLY IT UPDATES EVERY HOUR ###
### WHEN NEW DATA IS AVAILABLE. ###
### SHOULD MY SERVER BECOME OVERLOADED, I WILL ###
### NEED DONATIONS TO KEEP THIS SUCKER STORED ###
### AT MORE LOCATIONS. ###
##################################################

AGPS=http://derekgordon.com/gps-files/bin/xtra.bin
XTRA_SERVER_1=http://derekgordon.com/gps-files/bin/xtra.bin
XTRA_SERVER_2=http://xtra3.gpsonextra.net/xtra.bin
XTRA_SERVER_3=http://xtra2.gpsonextra.net/xtra.bin

###

##################################################
### NOT GOING TO GO INTO DETAIL HERE. THESE ###
### NEED TO BE CALLED FIRST IN GPS DAEMON ###
### STARTUP. RELATES TO AGPS AND SUPL. ###
##################################################

DEFAULT_AGPS_ENABLE=TRUE
DEFAULT_USER_PLANE=TRUE
DEFAULT_SSL_ENABLE=FALSE

###

##################################################
### INTERMEDIATEPOS RELATES TO USING GPS DATA ###
### FROM SATS THAT ARE NOT FULLY LOCKED. ###
### THE ACCURACY VARIABLE IS A THRESHOLD MAX ###
### ON DEVIATIONS FROM THE ASSUMED LOCATION ###
### WHERE THE DEVICE WILL DISCARD DATA. ###
### THIS VARIABLE IS =0 IN ALTERNATE BUILDS ###
##################################################

INTERMEDIATE_POS=1
ACCURACY_THRES=3000

###

##################################################
### THIS IS QUALITY OF SERVICE INFORMATION FOR ###
### PROCESSING THE GPS DATA. MOST SHOULD BE ###
### SELF-EXPLANATORY. GPS DATA OUTSIDE THE ###
### ACCURACY AND THRESHOLD RANGE WILL NOT BE ###
### USED WHEN POSITIONING DATA. ###
##################################################

QOS_ACCURACY=50
QOS_TIME_OUT_AGPS=95
QOS_TIME_OUT_STANDALONE=80
QosHorizontalThreshold=1000
QosVerticalThreshold=500

###

##################################################
### THESE VARIABLES RELATE TO AGPS. IT SAYS TO ###
### USE AGPS. THIS WILL NOT BE USED IF YOUR ###
### ROM HAS AGPS DISABLED IN THE CODE. ###
### THE SERVER IP IS FOR AN INTERNAL IP FOR ###
### ACCESSING THE AGPS DAEMONS DATA WHEN IT ###
### IS OPERATIONAL. ###
##################################################

AssistMethodType=1
AgpsUse=1
AgpsServerType=1
AgpsServerIp=3232235555
AgpsMtConf=0
AgpsMtResponseType=1

###

##################################################
### THIS SUPL DATA IS TO MATCH THE SUPLROOTCERT ##
### IF IT IS REQUIRED BY THE SUPL SERVER. ###
##################################################

SUPL_HOST=supl.google.com
SUPL_PORT=7276
#SUPL_SECURE_PORT=7275
SUPL_NO_SECURE_PORT=3425
#SUPL_TLS_HOST=FQDN
#SUPL_TLS_CERT=/etc/SuplRootCert
REPORT_POSITION_USE_SUPL_REFLOC=1

###

####################################################
### Carrier tags used univesrally in GPS configs ###
####################################################

CURRENT_CARRIER=common
PHONE_TYPE=UMTS

###