Potential Solution for Unlocking Bands on Droid 4 in US

danifunker · Oct 2, 2012

Hi Everyone,

I'm not sure how to try this out, since I'm not in the US, and that RadioComm doesn't work for my Droid 4 (it's been upgraded to ICS)

1) Install latest Motorola drivers and RadioComm
2) Launch RadioComm
3) When it RadioComm launches, Click Main -> MA -> Common -> MDM 6x00
4) Click Settings -> USB -> PST USB
5) Click on FTM Common 1
6) Connect the phone to the PC and wait for it to go green
7) Under NVAccess, find the following values:
4870, NV_GSM_850_CARRIER_SUPPRESSION_I
4871, NV_GSM_DCS_CARRIER_SUPPRESSION_I
4872, NV_GSM_1900_CARRIER_SUPPRESSION_I
8) For each value, press Read, then replace all of the numbers with 0. Once done, press write. Repeat for all 3 values/

Let me know if this works!

Again, I mentioned a problem with RadioComm. I'm using Windows 8 x64, RadioComm worked fine with my Bionic on GB, maybe it's an ICS thing, maybe I need newer drivers, etc... Please let me know if this works!

I was able to get this going on my Droid Bionic (which also had a corrupted IMEI number) so if you want to see that post, view it here :
http://xdaforums.com/showpost.php?p=32256347&postcount=780

terinfire · Oct 3, 2012

danifunker said:
Hi Everyone,

I'm not sure how to try this out, since I'm not in the US, and that RadioComm doesn't work for my Droid 4 (it's been upgraded to ICS)

1) Install latest Motorola drivers and RadioComm
2) Launch RadioComm
3) When it RadioComm launches, Click Main -> MA -> Common -> MDM 6x00
4) Click Settings -> USB -> PST USB
5) Click on FTM Common 1
6) Connect the phone to the PC and wait for it to go green
7) Under NVAccess, find the following values:
4870, NV_GSM_850_CARRIER_SUPPRESSION_I
4871, NV_GSM_DCS_CARRIER_SUPPRESSION_I
4872, NV_GSM_1900_CARRIER_SUPPRESSION_I
8) For each value, press Read, then replace all of the numbers with 0. Once done, press write. Repeat for all 3 values/

Let me know if this works!

Again, I mentioned a problem with RadioComm. I'm using Windows 8 x64, RadioComm worked fine with my Bionic on GB, maybe it's an ICS thing, maybe I need newer drivers, etc... Please let me know if this works!

I was able to get this going on my Droid Bionic (which also had a corrupted IMEI number) so if you want to see that post, view it here :
http://xdaforums.com/showpost.php?p=32256347&postcount=780

This looks awesome -- I saw your post in the Bionic forum. I was curious if this worked for anyone in the states on T-Mobile? I was looking to get a Droid 4 and use it on Straight Talk. Currently have an Epic, but loved my OG Droid. 3G is fine enough for me -- just curious if anyone is also able to get MMS working as well, along with APN settings?

terinfire · Oct 4, 2012

What version of RadioComm do you recommend? I've tried 11.9.0 and I get the error when I try to open it:

"Error in getting the pointer to CommP2K and/or CommQC. Error number: Exception of type 'System.Exception' was thrown."

If you can help me get past this error, I'd love to try this out...

danifunker · Oct 4, 2012

terinfire said:
What version of RadioComm do you recommend? I've tried 11.9.0 and I get the error when I try to open it:

"Error in getting the pointer to CommP2K and/or CommQC. Error number: Exception of type 'System.Exception' was thrown."

If you can help me get past this error, I'd love to try this out...

I'm using 11.12.2, and try to get the latest motorola phone drivers (different than the USB drivers) I think I'm running 5.9 of those.

Sent from my XT894 running ICS

terinfire · Oct 4, 2012

danifunker said:
I'm using 11.12.2, and try to get the latest motorola phone drivers (different than the USB drivers) I think I'm running 5.9 of those.

Sent from my XT894 running ICS

Awesome, I'll give it a shot when I get home. Out of curiosity -- I'm assuming this is similar to QPST. If I bork the modem, I should be able to go back to a prior group of settings, right?

SIM Card should be coming in on Saturday or Monday -- so should be able to get some news to everyone by then.

danifunker · Oct 4, 2012

terinfire said:
Awesome, I'll give it a shot when I get home. Out of curiosity -- I'm assuming this is similar to QPST. If I bork the modem, I should be able to go back to a prior group of settings, right?

SIM Card should be coming in on Saturday or Monday -- so should be able to get some news to everyone by then.

Cool, just to give you a heads up, someone tried it in the RAZR forum without success....

Sent from my XT894 running ICS

terinfire · Oct 4, 2012

Shoot. I've read that you can get 3G on AT&T without any problems across forums -- did I misread and this was for international use -- not inside the US? I just want to get 3G on AT&T if possible...

Any thoughts? Or can you point me in the right direction?

danifunker · Oct 4, 2012

terinfire said:
Shoot. I've read that you can get 3G on AT&T without any problems across forums -- did I misread and this was for international use -- not inside the US? I just want to get 3G on AT&T if possible...

Any thoughts? Or can you point me in the right direction?

Still trying to figure it out... I don't think we have a solution just yet.

terinfire · Oct 4, 2012

I'm a developer outside of all of this (C# primarily these days, but have an extensive background in C/C++) -- and I've flashed phones to cricket with QPST -- so maybe I can help you guys out with this. If you're up for discussing any background that might catch me up to speed on this (already have my phone), would be up for trying to help break into it and enable this. Just send me a PM if you're up for this. Thank you!

DarkMidnight · Oct 4, 2012

Hey all,

I've only used this program for a little bit but I was able to change the values to what the OP suggested however, I used the Motorola Factory USB cable. I couldn't get the program to recognize my phone w/o it.

I'm using stock rooted ICS too.

Sent from my DROID4 using Tapatalk 2

terinfire · Oct 4, 2012

So, you updated it with that -- were you successful and does GSM now work in the US?

Did anything change?

zeroktal · Oct 5, 2012

Phone doesn't make calls now

I followed the steps above
Radio Comm v11.12.2
Motorola drivers 2.2.28
Whatever data card drivers came with radiocomm

This did not allow me to see t-mobile or at&t here in the states.

terinfire · Oct 5, 2012

So, random question/thought... If we find another modem with similar chip in another phone -- say on AT&T -- would we be able to read some of these fields and stuff out -- and then push it into our modem?

dewhashish · Oct 5, 2012

it would be great if we can set the phone to just swap SIM cards very easily, especially in the US

danifunker · Oct 5, 2012

terinfire said:
So, random question/thought... If we find another modem with similar chip in another phone -- say on AT&T -- would we be able to read some of these fields and stuff out -- and then push it into our modem?

Hmm, might be an idea. I don't think that there were many AT&T phones with this capability though. My idea is to compare an XT910 vs an XT912, since that was a worldwide release.

Best idea, get an XT910, put your SIM into it, grab a full radio dump, then put your SIM into the XT912 that doesn't work and grab another full radio dump and compare the two.

You'd need an internation XT910, since AT&T didn't ship them down there, but that would be a great starting place...

terinfire · Oct 5, 2012

danifunker said:
Hmm, might be an idea. I don't think that there were many AT&T phones with this capability though. My idea is to compare an XT910 vs an XT912, since that was a worldwide release.

Best idea, get an XT910, put your SIM into it, grab a full radio dump, then put your SIM into the XT912 that doesn't work and grab another full radio dump and compare the two.

You'd need an internation XT910, since AT&T didn't ship them down there, but that would be a great starting place...

Only thing is that I'd have to go out of my way to do that and spend even more money. I just dropped some on the Droid 4 for an off-contract phone. I wonder if there's any way we could ping some of the other forums, i.e. the Razr and see if anyone can potentially get us full-reads, so that way we could compare/diff them?

In addition -- I wonder if it's possible (probably a long-shot) to potentially order a SIM card or something from another carrier in Europe or somewhere outside the US and get it into the phone, but then have it "added" or "roaming" on a US network or something -- if that might provide a workaround?

Just trying to take stabs at it. I figure I'll hold onto the D4 for another month and see if we have any exciting developments -- and if not -- just push it to Swappa.

remiqaine · Oct 5, 2012

So i could use this to unlock the radio for overseas teleco use?

danifunker · Oct 5, 2012

remiqaine said:
So i could use this to unlock the radio for overseas teleco use?

D4 already has unlocked radio for most telecoms overseas.

silver6054 · Oct 6, 2012

terinfire said:
Only thing is that I'd have to go out of my way to do that and spend even more money. I just dropped some on the Droid 4 for an off-contract phone. I wonder if there's any way we could ping some of the other forums, i.e. the Razr and see if anyone can potentially get us full-reads, so that way we could compare/diff them?

In addition -- I wonder if it's possible (probably a long-shot) to potentially order a SIM card or something from another carrier in Europe or somewhere outside the US and get it into the phone, but then have it "added" or "roaming" on a US network or something -- if that might provide a workaround?

Just trying to take stabs at it. I figure I'll hold onto the D4 for another month and see if we have any exciting developments -- and if not -- just push it to Swappa.

Not sure what you a proposing in your second paragraph. I have a UK SIM card, and when I plug it in two other phones (Samsung Renown, a CMDA/GSM basic phone) and a Motorola quad-band GSM phone, it works fine in the US. When I move the SIM into my Droid 4, no signal, although it sometimes gives the Unrecognized SIM message. So it's not a matter of non-US sims.

danifunker · Oct 6, 2012

silver6054 said:
Not sure what you a proposing in your second paragraph. I have a UK SIM card, and when I plug it in two other phones (Samsung Renown, a CMDA/GSM basic phone) and a Motorola quad-band GSM phone, it works fine in the US. When I move the SIM into my Droid 4, no signal, although it sometimes gives the Unrecognized SIM message. So it's not a matter of non-US sims.

I get the unrecognized SIM message also. That doesn't affect the phone one bit though, since I just press okay to the message and the phone connects to my carrier. Is your carrier one with a Verizon roaming agreement?

Sent from my XT894 running ICS

Potential Solution for Unlocking Bands on Droid 4 in US

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