The solution to the GPS problem

jockyw2001 · Jan 23, 2008

I'm confident I found the solution to enable GPS on production model Wings !
Check this out!

Now someone should test it!
See this post for info about dumping NV items.
or read on for a short manual:

0. search and download QPST (this is a qualcomm product suite, i believe someone put a link in this thread)
1. install HardSPL (see sticky)
2. download drivers on your PC (installation will be triggered after step 5.)
3. uncheck "Allow USB connections" in Activesync
4. restart phone in tri-color bootloader mode and start MTTY 1.42 (attached)
5. press return until you see Cmd> prompt and type: rtask c (if you never installed the diagnostics drivers before the installation of three drivers will be triggered (modem, diag com port diag and nmea com port)
6. now exit MTTY and start "QPST RF NV Item Manager" and select Read from Phone from the File menu
7. search item 0148 [NV_RF_CONFIG_I] on a production model is 11 (hexadecimal 0xb) and on a pre-production model it is 17 (hexadecimal 0x11)
8. if you have a production model change the value to 17 and click the button "NV Write". To veryfy if the value is sticky Read from Phone again

These are the steps. Unfortunately on a production model the value 17 is not written and stays 11. This is due to some kind of security mechanism and I'm quite sure this can and will be h*cked soon.

On a pre-production Wings and also on production Kaisers the value can be modified.

sat_ana · Jan 24, 2008

jockyw2001 said:
I'm confident I found the solution to enable GPS on production model Wings !
Check this out!

Now someone should test it!
See this post for info about dumping NV items.

You are God!!!!!!!!!!!!!!!!!!!!!!!
Regards

Dumdidum · Jan 24, 2008

Is it working?

el_lo · Jan 24, 2008

Jocky, sorry, didn't see your new thread. I replied here : http://xdaforums.com/showpost.php?p=1847311&postcount=106
What do you think

Djim · Jan 24, 2008

i'm kinda new with smartphones ^^;
would you mind to write a little summary in a post or in a pm with the procedure?
sorry to ask that , i just dont want to do anything wrong ^^;
thx

sat_ana · Jan 24, 2008

el_lo said:
Jocky, sorry, didn't see your new thread. I replied here : http://xdaforums.com/showpost.php?p=1847311&postcount=106
What do you think

Bad bad news

Regards

el_lo · Jan 24, 2008

sat_ana said:
Bad bad news

Regards

Not at all, this problem has been solved already. See the solution here: http://xdaforums.com/showpost.php?p=1847405&postcount=107

But there is a new problem here http://xdaforums.com/showthread.php?t=361322&page=12 @ post #112

jockyw2001 · Jan 24, 2008

Just to summarize the current status:
el_lo attempted to change the NV item #148 value from 11 to 17. However, the new value isn't stored. The same happens on Niki (they also cannot activate GPS) and a friend xperiences same as el_lo. Perhaps a wrong driver version or NV item manager version causes this problem.

On Kaiser I can both read and update NV items.

So it's time to get back to the drawing board

A.Bagatov · Jan 25, 2008

thanks a lot jocky!!!!!

Dumdidum · Jan 25, 2008

jockyw2001 said:
Just to summarize the current status:
el_lo attempted to change the NV item #148 value from 11 to 17. However, the new value isn't stored. The same happens on Niki (they also cannot activate GPS) and a friend xperiences same as el_lo. Perhaps a wrong driver version or NV item manager version causes this problem.

On Kaiser I can both read and update NV items.

So it's time to get back to the drawing board

How can I read the NV Item?

jenko22 · Jan 25, 2008

jockyw2001 said:
Dump NV Items

The configuration of radio are stored as NV items. It is possible to dump these as foolows:
1. Restart in tri-color bootloader mode and start MTTY
2. Type: rtask c
3. Exit MTTY and start "QPST RF NV Item Manager" and select Read from Phone from the File menu followed by Write Only listed Items to .QCN file

Taken from hxxp://xdaforums.com/showthread.php?p=1813156

Dumdidum · Jan 25, 2008

Yes, but how now to read the Item 148 from that file?

jockyw2001 · Jan 25, 2008

Dumdidum said:
Yes, but how now to read the Item 148 from that file?

Open the file in "QCNView" (part of QPST suite)

WasStoNed · Jan 25, 2008

I'll try and see what I can do with mine this week-end, work's crap as no admin on PC.
Really wanna help to get this going

Dumdidum · Jan 25, 2008

17 on my PreProd Radio Rom...

Dumdidum · Jan 25, 2008

Btw: I could successfully change it to 11... (checked it)

Dont have a fix since 10 minutes... but up to 13 (!) satelittes in view still....

jockyw2001 · Jan 25, 2008

Dumdidum said:
Btw: I could successfully change it to 11... (checked it)

Thx for testing this Dumdidum, that is very helpful information.

jockyw2001 · Jan 25, 2008

Dumdidum's last test makes me very pessimistic.
It almost seems that before the item value is written to NVRAM the device checks if the hw is available

Anyhow, we will know soon, because I think I have a method to write NV which bypasses all checks

walram · Jan 25, 2008

jockyw2001 said:
Dumdidum's last test makes me very pessimistic.
It almost seems that before the item value is written to NVRAM the device checks if the hw is available

Anyhow, we will know soon, because I think I have a method to write NV which bypasses all checks

I can't wait! Hope this will help.

By the way. Did you play around with the QXDM software? I found a testing utility for the GPS. I only could test it at work and we have no gps signals inside the building. Maybe you can try?

Surfboomerang · Jan 26, 2008

I don't know if this link is of any use in this, but every little bit helps (I hope)

Qualcomm MSM7200 Specs

On the last page is a picture of the architecture

The solution to the GPS problem

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