Database Develop

[FIX] Bell GT-I9000M users that seem to have lost the 850MHZ WCDMA Band

THIS IS FOR PEOPLE THAT HAVE ENTERED THE APN SETTINGS AND CANNOT ACTUALLY CONNECT TO THE 850MHZ BAND
WARNING: FOLLOWING THIS GUIDE WILL WIPE ALL DATA YOUR PHONE (minus the SD Cards)
Flash back to UGJG8 available on samfirmware.com. (Odin 3 + 512 pit)
Open the dialer and enter *#272*xxxx#
The above x's are the current time. So for 2:15pm, you would enter 0215.
Select BMC and then Install.
Wait till the phone reboots.
Your radio should now have the 850mhz band working again.
Feel free to flash back to UGJH2 again.

Just want to add, as long as you flash JUST the code in ODIN you should never lose 850Mhz again after doing this.
Would be nice if we could extract the CSC from the rom and never have to worry about downgrading again if we mess up.

Bumping this as it seems there are still people with the issue...
Sent from my GT-I9000M using XDA App

What is the best way to verify that the phone has lost 850 MHz?
Where does one find the APN settings and where are they entered?
I don't have this issue myself, but it would be very nice if this was a bigger single reference.
EDIT: I missed this, APN settings are here: http://forum.xda-developers.com/showthread.php?t=769400
And does Bell use only 850 MHz for 3G?

Not sure if they ONLY use 850MHZ. When I had the issue I had perfect coverage in the city center. But absolutely none on the outskirts where I live. I couldn't even connect to the network for data calls. After a few hours of messing with it to get it back, I tried what's in my original post and thankfully it worked.

tylerham said:
What is the best way to verify that the phone has lost 850 MHz?
Click to expand...
Click to collapse
key in
*#*#0011#*#*
in the dialpad, and it should show you which UMTS band you're currently using.

It just said
Rejected
when I did that.

Electroz said:
THIS IS FOR PEOPLE THAT HAVE ENTERED THE APN SETTINGS AND CANNOT ACTUALLY CONNECT TO THE 850MHZ BAND
Flash back to UGJG8 available on samfirmwares.com. (Odin 3 + 512 pit)
Click to expand...
Click to collapse
In my experience all you have to do is flash any Bell 2.1 rom again via ODIN to restore your America/Aussie radio, I suggest JH2 instead as the OS and Radio are both newer in that build. You can flash whatever 2.1 ROM you want as long as you don't go to a 2.2 radio you will be fine. I know because this was the first thing I did, and basically one of the big reasons I bought this model, so I can flash away all like a regular i9000m just keeping my bell radio. I'm on AT&T and I get HSPDA/HSPUA 24/7.
You can do this on HTC devices, as they usually just release radios by themself to flash alone via stock recovery/clockwork/whatever. So I was glad to see Samsung didn't jack that around and make one rom use a specific radio only. That would have sucked hard, as you can get better service with others.

tylerham said:
It just said
Rejected
when I did that.
Click to expand...
Click to collapse
oops, my bad.. try *#*#0011#*#*
this does work here, lemme know.

Yep, that works, thanks!

BA_Flash_GOD said:
In my experience all you have to do is flash any Bell 2.1 rom again via ODIN to restore your America/Aussie radio, I suggest JH2 instead as the OS and Radio are both newer in that build. You can flash whatever 2.1 ROM you want as long as you don't go to a 2.2 radio you will be fine. I know because this was the first thing I did, and basically one of the big reasons I bought this model, so I can flash away all like a regular i9000m just keeping my bell radio. I'm on AT&T and I get HSPDA/HSPUA 24/7.
You can do this on HTC devices, as they usually just release radios by themself to flash alone via stock recovery/clockwork/whatever. So I was glad to see Samsung didn't jack that around and make one rom use a specific radio only. That would have sucked hard, as you can get better service with others.
Click to expand...
Click to collapse
Myself, and a couple of other people have had the issue where flashing back to UGJH2 simply does not restore the 850MHZ band, hence this thread. I flashed the new HK JP2 and it worked fine. However, I completely lost connectivity to the 850MHZ band. I flashed back to UGJH2, which did not fix it, went back to the new JP2 again, still nothing. After hours of torture, I finally tried the CSC method in UGJG8 and it worked. 850MHZ restored!
Obviously, you've never had the issue where you've had to use this tutorial. When using UGJH2, which I currently am, you cannot use the *#272*xxxx# code. It simply does not work. However, it does work in UGJG8, and lets you select the BMC CSC which is what fixes the problem.
I do however agree that we should always go with the most recent radio, which is why I went back to UGJH2 after fixing my issue in UGJG8.

I def lost 850 mhz band, i flashed to the new Froyo JPC for a few days and it was a disaster, flashed back to UGJ8 now, and installed BMC, looks good
but one thing bothered me, when I put in the code, above the BMC
It said: Sales Code: KOR
Is that normal, or has JPC transformed my phone to a Korean Model permanently (can this be fixed), and what are the effects of this, will I be able to receive the OTA and flash froyo when its out normally?
Thanks

SS2006 said:
I def lost 850 mhz band, i flashed to the new Froyo JPC for a few days and it was a disaster, flashed back to UGJ8 now, and installed BMC, looks good
but one thing bothered me, when I put in the code, above the BMC
It said: Sales Code: KOR
Is that normal, or has JPC transformed my phone to a Korean Model permanently (can this be fixed), and what are the effects of this, will I be able to receive the OTA and flash froyo when its out normally?
Thanks
Click to expand...
Click to collapse
I'm not sure, sorry. I have not run into the issue myself.

SS2006 said:
I def lost 850 mhz band, i flashed to the new Froyo JPC for a few days and it was a disaster, flashed back to UGJ8 now, and installed BMC, looks good
but one thing bothered me, when I put in the code, above the BMC
It said: Sales Code: KOR
Is that normal, or has JPC transformed my phone to a Korean Model permanently (can this be fixed), and what are the effects of this, will I be able to receive the OTA and flash froyo when its out normally?
Thanks
Click to expand...
Click to collapse
Under the thread about the JPC update they talk about this very issue.

Did you guys flash the CSC and the MODEM or just the CSC for JG8?

Inios said:
Did you guys flash the CSC and the MODEM or just the CSC for JG8?
Click to expand...
Click to collapse
You need the whole rom, CSC and PDA to be able to activate the CSC. Modem shouldn't matter, but I did flash it as well as everything was packaged in a single .tar file for me,

Is it possible to go to XWJM8 without flashing the modem? Or, is there another compatible Bell modem that can be used instead?
I flashed the XXJM4 modem and I'm pretty sure I lost 850MHz.

tylerham said:
Is it possible to go to XWJM8 without flashing the modem? Or, is there another compatible Bell modem that can be used instead?
I flashed the XXJM4 modem and I'm pretty sure I lost 850MHz.
Click to expand...
Click to collapse
I flashed with both jm5 and jm7 and also lost 850. Had to go back to jh2 to get it back
Sent from my GT-I9000M using XDA App

Did you guys flash with the BMC CSC?
I flashed JM8 Code with the JM4 modem and the BMC JH2 CSC and my phone came up with the BMC sales code and Bell APN's. I do have to add the pda.bell apn after. All of the inet ones are there. I have yet to find a CSC that has the pda.bell.ca APN pre-loaded.
Here is a link to different CSC's as well as Richtofen's release.
http://forum.xda-developers.com/showthread.php?t=780867

Banger242 said:
Did you guys flash with the BMC CSC?
I flashed JM8 Code with the JM4 modem and the BMC JH2 CSC and my phone came up with the BMC sales code and Bell APN's. I do have to add the pda.bell apn after. All of the inet ones are there. I have yet to find a CSC that has the pda.bell.ca APN pre-loaded.
Here is a link to different CSC's as well as Richtofen's release.
http://forum.xda-developers.com/showthread.php?t=780867
Click to expand...
Click to collapse
XWJM8 CODE and XXJM4 MODEM work but not properly: they don't let you use 850MHz. I think that on Bell we need to use a UG MODEM.
Maybe Richtofen could split out the MODEM as well as the CSC.

SOLVED - Sasktel (bell) phone running Darky's ROM

Ok so I'm running Darky's 7.5 ROM just loaded it and it's flying . i'm having issues connecting to my carrier. I"m from canada and run on a network owned by Sasktel. We get our phones from Bell and our current release is JL2 I think. I was running this ROM fine but wanted to see what all the hype was about .
Now the only problem i'm having is I can't register on my network and thus my phone isn't working as a phone, lol. can someone help me set it up. here are the frequencies we run on.
SaskTel
GSM - N/A
UMTS/HSPA - 850/1900
I went into the APN and set that up so I should have data I just need to get registered. I can see the network Sasktel but it wont let me register. I get the exact message when clicking on it
"Registering on Sasktel......You SIM card does not allow a connection on this network"
any help would be great, thanks
I tried going in here *#2263# but didn't know what to pick so I left it to automatic

I don't know.
When you flash back to official firmware, everything works fine again ?
This may sound funny but try 'sim unlock' your phone.

after flashing, your phone might have reverted back it's original lock which is to BELL.
I agree with the other reply stating for you to have your phone unlocked.

xxgg said:
I don't know.
When you flash back to official firmware, everything works fine again ?
This may sound funny but try 'sim unlock' your phone.
Click to expand...
Click to collapse
I unlocked my phone a while back and it's unlocked still, Network lock = off. and yes flashing to other roms specifically for my phone will work fine on the network. Is this because Darky's ROM is based on a European ROM JPY and i'm supposed to be running a Canadian ROM JL2?

Hi. I have a SGS straight from Sasktel here in SK. I checked my setting under 2263, and it is automatic (top one). After I checked it, it lost cellular connection for about a minute, then eventually came back (phew!).

adamge said:
Hi. I have a SGS straight from Sasktel here in SK. I checked my setting under 2263, and it is automatic (top one). After I checked it, it lost cellular connection for about a minute, then eventually came back (phew!).
Click to expand...
Click to collapse
awesome what happens when you go back into 2263 and click on the wcdma band, which ones are stared in there?I have 2100, 1900 and 900 starred but 850 is not.....Also could you post your APN settings. those are in settings, wireless network, mobile networks, access point names and then click on the inet.stm.sk.ca one and if it's not too much for you could you post them up here along with the wcdma band settings. Thanks bud

can we actually install darkys rom on BELL vibranat i9000M
i would like to find out if darkys Rom works with Bell vibrant thats i9000M from canada ?

well his rom is up and running fine yes, I just have to get the right setting to run on my carrier....I own a i9000m it's a bell phone that my carrier gets supply from. So yes his rom works great on this phone, it's so fast, I might try flashing a modem for the canadian phones and see if that works i'll post back

SOLVED - Sasktel (Bell) running Darky's ROM
So I figured it out, I was running JL2 and then flashed speedmod kernel to get 2e. I then upgraded to Darky's 7.5 ROM, when that came up I was unable to get on the network. I was getting an error "Sim doesn't allow connection on the network" error when looking in providers. anyways, I just flashed the JK3 modem and i'm back on the network with Darky's rom
I grabbed the modem from here.
http://forum.xda-developers.com/showthread.php?t=846237
I used JK3 because they were having issues with JK4 bricking for some reason and didn't want to risk it. now to just get JL2 modem some how

There is a JL2 modem floating around somewhere.
I am also running jk3 modem with xxJPY, love my phone now.
No more bridling issues

BlackDino said:
There is a JL2 modem floating around somewhere.
I am also running jk3 modem with xxJPY, love my phone now.
No more bridling issues
Click to expand...
Click to collapse
Me too, so fast and smooth

If we could get jl2 modem with darkys
Is there a way to get jl2. Modem working with darkys then it would be perfect if u do find it let us know and make a step by step tutorial how it's done from the scratch for newbees canadiens thanks

notoriouspk said:
Is there a way to get jl2. Modem working with darkys then it would be perfect if u do find it let us know and make a step by step tutorial how it's done from the scratch for newbees canadiens thanks
Click to expand...
Click to collapse
It's very simple, TURN OFF ANY/ALL lag fixes!!!!! Back your **** up. then you can begin
You phone should be unlocked but might not have to be.....mine was, you can grab sgs unlocker form the app market also, You have to be running 2e recovery. so check on that first by powering your phone off, wait till it's actually off, froyo vibrates when it's shut down. After it's off, hold volume up, home button and power till you see the i9000m then let it go. it should boot into recovery. If you were running Froyo then you will have a 3e recovery, we need 2e. Also you should check and make sure you can get into download mode, by powering off, volume down, home and power key. If you can't get inot download mode you have to fix that first. if you can proceed:
So grab the recent stable speedmod kernel from hardcore here DON'T get the development version:
http://forum.xda-developers.com/showthread.php?t=822756&highlight=speedmod
depending on how you want to flash grab either the CWM or the other one which needs to be flashed via odin. Flash either or and your phone should boot with 2e. follow the instructions hardcore has posted and make sure you hit the thanks button for him .
After we have 2e installed you can grab Darky's ROM located here:
http://forum.xda-developers.com/showthread.php?t=814091
I used the non wipe one and didn't have issues, make sure you back your **** up before flashing anything. If you notice battery drain after you flash you could flash the wipe version just to make sure. anyways, Follow Darky's instructions to the T and dont forget to thank him
After his ROM boots, I grabbed a modem for our phones (bell, sasktel) I used JK3 because the search wasn't working last night but found this morning a link to JL2....i'm not sure if this is legit JL2 because I haven't used it but give it a shot if it doesn't work flash another on top (I can confirm JK3 works)
JL2: http://forum.xda-developers.com/atta...1&d=1293577837
Grabbed that from a link Samdroid_G_S posted so thank him for that.
JK3: was from docs link located here:
http://forum.xda-developers.com/showthread.php?t=846237&highlight=bell
you can thank him for that. I used JK3 because of the issues JK4 was causing. I wouldn't use JK4 but that' up to you.
again you can use either odin or CWM to flash the modem. once you flash the modem you should be able to register on the network. you might not have internet, so you will need to go in and edit your access point name. Located in your phone here:
Settings | wireless and network | Mobile Networks | access point names
If it is blank click the menu button and New APN, all you need for sasktel's is a name, can be whatever and APN, the APN should be "inet.stm.sk.ca" without the quotes. Leave everything else default and save it. you will have to click the bullet after you created it so it knows to use it. should be good after that. For bell just do a quick google search for bell apn or bell access point name, i'm sure someone has posted on xda also.
I am not responsible if you brick your phone, this is entirely on you if that happens.

Thanks man
That's what I have been looking for . A step by step tutorial how is the rom working for you I will give it a shot . I hope sd card Won't die on me again .I can deal with other problems but what could u do when sd card dies
on u .Thanks!

Hey no problem, by default the voodoo lag fix is disabled but honestly you won't need it.....
Sent from my GT-I9000 using XDA App

Nice, one of the great posts ever on xda. Is there any advantage to running darky's ROM? My SGS on JL2 has been good, and battery life seems awesome now that I turned off automated email checking.

adamge said:
Nice, one of the great posts ever on xda. Is there any advantage to running darky's ROM? My SGS on JL2 has been good, and battery life seems awesome now that I turned off automated email checking.
Click to expand...
Click to collapse
Pretty much preference I guess. I love Darky's ROM but JL2 was good, Darky's seems faster it's built upon 2.2.1 and I read Samsung did some kernel upgrades so that's why it's faster. If you do try it out just make sure you can get into recovery and download mode first.

i can confirm that Darkys rom works, I'm running 7.6 atm. I did notice that the APN settings in my original settings were missing ports numbers for data.

I tried this and it did not work, I still don't have data connection and I am on Bell canada.

Are u still getting text's? If so then you are registered on the network, all you have to do is go into your access point names and create an entry, then highlight it after it's saved. See my post above
Sent from my GT-I9000 using XDA App

[Q] Awful Cell Reception (Bell Canada) (2.3.3 JVK) **FIXED**

Hey Guys,
I had flashed 2.3.3 JVK Gingerbread to my Canadian Bell Samsung i9000m. Since the flash my cellular signal is extremely poor. Getting 0-1 bar in places I would normally get 4-full on Froyo. With JVK the phone is extremely fast, email app has stopped constantly force closing and for the first time, gps works great! This is why I didn't just want to flash back to Froyo to fix the cell signal issue. I had been told by a member here to ensure that [8]WCDMA 850(FDD V)[*] in the band settings had a star in it. It did not, I had selected it and rebooted, star is now there with no change in signal strength.... So this is my question, am I going to have to flash back to froyo to fix this and once again live without GPS? Or is there a work-around or setting to fix signal strength. ANY help is greatly appreciated. Thanks in advance..
INFO
NA Bell i9000m Vibrant
Flashed to 2.3.3 JVK Gingerbread with Odin with new Bootloaders, no PIT/Repartition.
EVERYTHING else works perfect, except cellphone signal.
**FIXED**
Flashed the KC1 (Bell Canada Update) modem.bin via odin. I now get full signal (84dB) where I had previosly had none. (2.3.3. Modem). Gps working great. Phone still fast as hell.
Also just a follow up, I tried the JL2 modem first but gps failed to lock. Thanks for the advice though the 850mhz was the key!

No no no! Its just your modem, you can flash any modem toy like!
Go for jl2 as it is 850mhz by default.
Just find the jl2 modem. If its a zip then extract modem.bin and place in the pda section of odin. Flash away! If its a .tar file just put this straight in.
Stock XXJVK, Voodoo GB hack Kernel, JQ1 modem

thanks for the quick reply. So the modem type has nothing to do with gps?? Also, how safe is it to flash the modem from another firmware? thanks again for all the help dude.. I apologize in advance for any truly stupid questions haha..
Sent from my GT-I9000 using XDA

steve-stewart said:
thanks for the quick reply. So the modem type has nothing to do with gps?? Also, how safe is it to flash the modem from another firmware? thanks again for all the help dude.. I apologize in advance for any truly stupid questions haha..
Sent from my GT-I9000 using XDA
Click to expand...
Click to collapse
Yes you can use any froyo modem.
As for gps... I hear conflicting reports about that. Jl2 tho has great gps from reports.
I found jvk modem to drain heaps standby. Im guessing that without 850mhz band your phone is using a fallback band with worse reception. Ll2 should sort this out
Stock XXJVK, Voodoo GB hack Kernel, JQ1 modem

rlorange said:
Yes you can use any froyo modem.
As for gps... I hear conflicting reports about that. Jl2 tho has great gps from reports.
I found jvk modem to drain heaps standby. Im guessing that without 850mhz band your phone is using a fallback band with worse reception. Ll2 should sort this out
Stock XXJVK, Voodoo GB hack Kernel, JQ1 modem
Click to expand...
Click to collapse
So is the JL2 from 2.2.1?, as with the 2.2 Froyo, my gps was not just being slow, but not functioning at all (0 Locked sat's).
Also, where would I obtain this modem file, and how is it flashed. I ran a search and noticed that some member state it goes into the PDA field in ODIN and other stating it goes into the PHONE field. Also, I have not modified the bootloader,(Stock came with 2.3.3) and I am unsure weather it could be flashed using the update method. As this is my work phone, I need to be sure I will not brick it. Once again, sorry for all the questions, the help is GREATLY appreciated.
**EDIT**
Also, when going into the *#2263#, the 850 Band is listed in both the GSM and CDMA areas, both with a corresponding star in the box beside them. Not sure if this means the band is actually there or not. One thing I am sure of is the fact that with FROYO my signal was perfect, with GPS non existant and phone generally SLOW, with 2.3.3 EVERYTHING is working great with the exception of the cell signal strength. Speed is incredible.

Ah glad to hear you sorted it out! Being half canadian myself I was glad I helped.
Hey try this blue gingerbread keyboard
http://db.tt/eBFA0n5
Stock XXJVK, Voodoo GB hack Kernel, JQ1 modem

I Can not accept an incoming call on Samsung Galaxy S
I just recently upgraded my phone to Gingerbread, since then i have been having problem to receive an Incoming calls
when I have an incoming call, the phone does not ring or, vibrate or even show the incoming call screen. the only thing I can see is the little icon next to 3G icon on the top of the screen showing there is an incoming call and the screen will be blank. non either call accept or reject page will show instead it will show blank page and the network bar will be lost.
so I can get messages. I can dial out without a problem.
I am using Samsung Galaxy S
Can some one help me

I want to upgrade my Samsung Galaxy s Vibrant BELL to Gingerbread 2.3.4
Can some one help me,
I want to upgrade my Samsung Galaxy s Vibrant BELL to Gingerbread 2.3.4
I need instruction and right tools to download for upgrading
I need instruction and right tools to root my phone
I need instruction and right tools to flash my phone.

"I9000M Your SIM card does not allow a connection to network" after installing CM7

"I9000M Your SIM card does not allow a connection to network" after installing CM7
I have signal for emergency calls and everything, but my phone will not connect to the carrier. I verified that the phone's IMEI matched the one on the case and tried to manually select the carrier but have had no luck.
This is on Virgin Mobile btw.

Try flashing either the JK4, JL2 or KC1 modem from the 4th post of this thread :
http://forum.xda-developers.com/showthread.php?t=1053304
(those are the ones that work with the 850mhz band)
Simply click on install zip from recovery, then chose the modem file.
My carrier is Bell and the JL2 works best for me.
You can also try wiping cache/dalvik cache from recovery, it solves a lot of problems.

My carrier is bell as well and I also find JL2 works the best
Sent from my GT-I9000 using XDA Premium App

Dinglehoofis said:
I have signal for emergency calls and everything, but my phone will not connect to the carrier. I verified that the phone's IMEI matched the one on the case and tried to manually select the carrier but have had no luck.
This is on Virgin Mobile btw.
Click to expand...
Click to collapse
hi mate u jz update to 2.33 all will be fine ...i just finish 1 on sgs

koflem said:
Try flashing either the JK4, JL2 or KC1 modem from the 4th post of this thread :
http://forum.xda-developers.com/showthread.php?t=1053304
(those are the ones that work with the 850mhz band)
Simply click on install zip from recovery, then chose the modem file.
My carrier is Bell and the JL2 works best for me.
You can also try wiping cache/dalvik cache from recovery, it solves a lot of problems.
Click to expand...
Click to collapse
Can these be used with Darky's ROM? In an effort to make things work I tried a different ROM, same result though. All the numbers matching and everything still but no SIM. I also noticed that the signal type it's trying to use is GPRS and iirc Bell is HSDPA, no? I'm guessing that may have something to do with it?

I don't think so, the links I posted are for cm7. If you want modems for other roms, check over there :http://forum.xda-developers.com/showthread.php?t=876391
You can also try using the *#301279# dialer code to see if HSDPA is activated (but the code doesn't work on cm7)

I used ugkc1 for darkys rom in the past

[Q] 850Mhz modem.bin and CwM

I've been reading about enabling the 850Mhz frequency on my P1000. To go about that I will have to reflash my modem with a new modem.bin. So far I'm using the Overcome ROM and noticed that in their downloads sections they have modem update zips for CwM. So I was wondering if I could just grab one of those zips and then replace the modem.bin inside it with the one I've already downloaded and then repack it and use that with CwM?
And also:
In the past I've tried installing the CwM from ROM Manager while using the Overcome ROM, only to have it brick my tab requiring a restock using odin and reinstalling Overcome. Is the custom CwM recovery that comes with Overcome the only one that will work with the P1000 or am I missing something?

Sorry, but no, you can't flash your tab to be an 850mHz tab if it is natively a 900mHz tab... Its NOT the firmware, its the hardware itself that allows you to use 850,900,1700,1900 or 2100 mHz range...
All you'll do is make your reception really bad....
You have been warned....

ultramag69 said:
Sorry, but no, you can't flash your tab to be an 850mHz tab if it is natively a 900mHz tab... Its NOT the firmware, its the hardware itself that allows you to use 850,900,1700,1900 or 2100 mHz range...
All you'll do is make your reception really bad....
You have been warned....
Click to expand...
Click to collapse
Guys, I have discovered it is a firmware issue as I found online the code to get me into the firmware menu to which I successfully changed my P1000 from 900Mhz to 850Mhz, and then 3G popped online without a hitch.
It's been running great for the past month until I installed Overcome_7_Series_v4.1.0_Wipe which added 1700Mhz to the firmware menu, and now it no longer recognizes the 850Mhz when selected.
It also appears to be a permanent firmware change because flashing a Gingerbread ROM originally installed doesn't remove the 1700Mhz option nor allow me to use 3G 850Mhz.
After searching online through many forums, it appears no one has a solution other than the one seen here.
As a final option, I'm going to attempt to format every system mounted folder so everything is wiped clean, and flash a complete Froyo ROM in hopes it will remove the 1700Mhz option and restore the ability to switch to 850Mhz.
If anyone is interested in the outcome, I'll post here my results. Conversely, if anyone has ideas, thoughts or knowledge on this issue, any and all is completely welcome.

WHEW!
I was successful at returning the firmware menu to its original code where 1700MHz was no longer in the options. I did this by following instructions on installing the Overcome 7 Series v4.1.0 Wipe, found here http://www.teamovercome.net/p1000/?page_id=17.
During step 4, I chose a modem.bin file for a country which uses 850MHz frequency for 3G like USA, Mexico & Australia, which in the supplied files was the JK3 modem.
Then between steps 9 & 10 I entered Recovery and formatted all system folders in the Storage Menu (/cache, /data, /dbdata, /system), then did a wipe data/factory reset, wipe cache, wipe dalvik cache. Then I continued on from step 10.
When the Tab was on the Home screen, I followed these instructions to access the firmware menu http://androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html and confirmed that 1700MHz was no longer an option. I continued onward to select 850MHz, rebooted and 3G came online.
Let me tell y'all that I've been working on this issue for 12 full hours, and it sure feels rewarding to have succeeded at this seemingly easy but became quite tedious excursion. Time for some deep sleeping.

So to be clear, you have voice calls enabled since you're running the Overcome ROM and 3g data works on AT&T as well at the same time without having to use any sort of modem switch? Still working well after this time? If this is true, that's really cool. Everyone has been saying it's a hardware issue all along. I guess you just need to do the configure like you pointed out and voila! Sweet!

I don't think he said that.
He said he can get a p1000 to work with AT&T 3G data network at 850Mhz.
Never mentioned phone calls or SMS, etc
Sent from my GT-P1000 using XDA

priyana said:
I don't think he said that.
He said he can get a p1000 to work with AT&T 3G data network at 850Mhz.
Never mentioned phone calls or SMS, etc
Sent from my GT-P1000 using XDA
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Yes, a T-mobile GT... on AT&T 3g. I'm bringing this up because the Overcome ROM has the phone enabled. Just want to see if this function works along with 3g and the JK3 modem he's using. I think all of the various functions can be changed in the settings menu accessed in the dialer. I'll monitor the thread for cmcole's response. Even if it's just the data that works with that modem, that's still cool. I think Rotohammers modem switcher could allow you to use 2 modems and have the ability for both if the JK3 modem doesn't allow voice/3g data but I think it should.