Hi everyone,
I know most of us still have problem with Wave's GPS. After wrestling with my GPS on Wave for a period of time, I have a solution that I'm so sure
that you will love your Wave much more.
I won't tell you guys in details because there's a lot of information behind the story. The following is the step-by-step you need to do
with your phone and it needs "sTune" as you need to deal with files in there.
Some basic knowledge I need you to know to get along with what we are going to do with the phone.
"Wave" has one feature called "GPS Plus (GPS+)" and what is it?
GPS+, based on my research on the web, is a feature of Qualcomm chipset which works as an assistant of GPS device
to download some "data" from the server on our phone for positioning calculation.
What kind of data is downloaded?
- It is just a binary file, named "xtra.bin", which contains "Almanac" and "Ephemeris" data of the 32 sats.
Our Wave will convert the bin file "AlmFile00 - AlmFile31" and "EphFile00 - EphFile31" into folder "User/LBS/CGPS_PE"
If you'd like to know about "Almanac" and "Ephemeris", please google it as I don't want to explain here.
What is the benefit of downloaded "Almanac" and "Ephemeris" data into the phone?
- These data will help your GPS device finding the position quicker because the device doesn't have to waste time-to-communicate
with the sats to get data for the calculation. The data is valid for only "167" hours and we need to re-download the binary file again
to gain the feature of GPS+.
What is the problem on our Wave?
- The problem, imo and based on my FW ver JK1, is that the firmware is incomplete and malfuntion because it doesn't work in such a way it should.
So my solution is to refresh the data under the folder "User/LBS/CGPS_PE", "User/LBS/CGPS_ME" and manual download the binary file from the server
using "LBS Test Application"
**Checkpoint**
1. ONLY "Enable location services" is used (Setting>Connectivity>Location)
2. Access "LBS Test App" by dial code *#4097*4097# on your phone
3. Make sure that under "Application setting" menu
you "GPS mode" is "Standalone" and "GPS Device-Type" is "Hybrid"
4. Under "User setting" > "Assist Method" is "GPS+"
PS. Other features such as "Advanced GPS", "Enable network position", and "Enable sensor aiding" will NOT be used.
Some explanations;
"Advanced GPS" is auto-download feature for GPS+ to download binary file from the server
"Enable network position" - I have no idea with the feature as I don't see any outgoing connection via my router's log file. And this make
me believe that AGPS or Assisted GPS still not work by now based on my JK1 firmware.
"Enable sensor aiding" - this should be a feature that enable "magnetic sensor" but it seems doesn't work properly after checking with "LBS Test App" and LBS config file.
And it worsen Route66 in terms of accuracy.
Ok, lets start!!
1. Gently plug your Wave to the PC using USB and open "sTune".
2. Browse to folder "User/LBS/CGPS_PE" and backup all the files.
3. Delete all the files under the folder.
4. Browse to folder "User/LBS/CGPS_ME" and backup all the files.
5. Delete all the files under the folder.
6. Access "LBS Test App" with *#4097*4097# and manual download the bin file under menu "Test Application" > "GPS+" > "Download data".
Now, a valid time of 167 hours of "Almanac" and "Ephemeris" files should be ready under "User/LBS/CGPS_PE" (don't worry if there're only Almanac files)
7. Make sure the data has a valid time of 167 hours by checking at the same menu "Test Application" > "GPS+" > "Check valid time"
8. Go out side the house and do the first fix. Now you should get the fix faster and more number of sats.
PS. The time (Almanac & Ephemeris) will be "invalid" after the phone restart. You should re-download to make it "valid" unless your "Advanced GPS" is working properly.
Then you don't need manual download.
This solution is proved by many user in my country and I do hope it really works for you guys.
e da, i ona gta wannabe igrica 
