Database Users

I9000 working on 3G 850MHz HSDPA Band!!

Hello,
This was posted on the Captivate forum and I don't know if this is true. I'm actually looking for some people to try this feature as I don't have the I9000 (yet).
for_ap1 said:
When I opened a service menu (global version i9000), there was an option to enable 850MHz HSDPA band. It is disabled out of the box. I know that it works, because, at the place where I tested it, I couldn't get 3G data - only EDGE mode worked. When I enabled 850 band, phone found 3G network. Thus hardware is quad band for both GSM and 3G.
Thanks
Click to expand...
Click to collapse
Could someone test this feature? I mean REALLY test it? Test this feature in an area where only 850 MHZ is avaiable? I think someone using the i9000 on AT&T will be able to test.
Thanks

Tell us how to enable it...I9000 works on 3G on 1900 Band out of the box.

This information is not correct for the international version. I tested on on purchased from HK but used in Australia and while i can get to the service mode command, i get an error when i try to set WCDMA mode to 850.
Procedure below:
1. on the key pad, type *#*#197328640#*#*
2. Select [1] Debug Screen
3. Select [8] Phone control
4. Select [7] Network control
5. Select [2] and selection
6. Select [2] WCDMA band []
7. Select [6] WCDMA 850
After this i get
"MENU NOT EXIST"
"PRESS BACK KEY"
Current command is 187226
Except i'm doing something wrong it appears that i can't set the WCDMA mode to 850.

I'm pretty sure the bands the phone can operate in is a hardware limitation. So unless someone opens up the phone and identifies the chip that does this, I highly doubt u can use 850 band on it.

dipac said:
This information is not correct for the international version. I tested on on purchased from HK but used in Australia and while i can get to the service mode command, i get an error when i try to set WCDMA mode to 850.
Procedure below:
1. on the key pad, type *#*#197328640#*#*
2. Select [1] Debug Screen
3. Select [8] Phone control
4. Select [7] Network control
5. Select [2] and selection
6. Select [2] WCDMA band []
7. Select [6] WCDMA 850
After this i get
"MENU NOT EXIST"
"PRESS BACK KEY"
Current command is 187226
Except i'm doing something wrong it appears that i can't set the WCDMA mode to 850.
Click to expand...
Click to collapse
What if you select it to all bands?
never mind i tried it, just selects everything except 850, so its hardware limited, radio doesnt support it.
Would have been nice though

NeoXTC said:
I'm pretty sure the bands the phone can operate in is a hardware limitation. So unless someone opens up the phone and identifies the chip that does this, I highly doubt u can use 850 band on it.
Click to expand...
Click to collapse
This is correct! but sometimes the radio will support bands that aren't enabled in the firmware, was hopeful .

Actually managed to enable 850...
Go down to combin bands, then enable it, then you can go back to wcdma band and select it there..
I dont have an 850 network to test on to see if it actually works though, doubt it does but worth a try...
update: nevermind doesn't work, checking info in the setup menu can still see it using 2100.

Kilack said:
Actually managed to enable 850...
Go down to combin bands, then enable it, then you can go back to wcdma band and select it there..
I dont have an 850 network to test on to see if it actually works though, doubt it does but worth a try...
update: nevermind doesn't work, checking info in the setup menu can still see it using 2100.
Click to expand...
Click to collapse
Maybe it's because you are actually using 2100 at that moment. You should try using 3G when in a 850 MHZ only region.

very awesome!
This works on the Samsung Vibrant on TMOUSA also.

Ok trying it so far so good... can someone tell me how to determine what band I am currently using?
Sent from my GT-I9000 using XDA App

dipac said:
This information is not correct for the international version. I tested on on purchased from HK but used in Australia and while i can get to the service mode command, i get an error when i try to set WCDMA mode to 850.
Procedure below:
1. on the key pad, type *#*#197328640#*#*
2. Select [1] Debug Screen
3. Select [8] Phone control
4. Select [7] Network control
5. Select [2] and selection
6. Select [2] WCDMA band []
7. Select [6] WCDMA 850
After this i get
"MENU NOT EXIST"
"PRESS BACK KEY"
Current command is 187226
Except i'm doing something wrong it appears that i can't set the WCDMA mode to 850.
Click to expand...
Click to collapse
I get the same exact thing.... Can someone PLZ tell us how to do this?

interesting find, i'll need to test this out myself as i'm only using 1900 band

I got
"MENU NOT EXIST"
"PRESS BACK KEY"
too.
I think it's just hardware limitations. We can't enable thing we don't have on our phone. I'm hoping that I'm so wrong because my provider is using 850MHz for 3G.

Dark-Master said:
I got
"MENU NOT EXIST"
"PRESS BACK KEY"
too.
I think it's just hardware limitations. We can't enable thing we don't have on our phone. I'm hoping that I'm so wrong because my provider is using 850MHz for 3G.
Click to expand...
Click to collapse
It's a software limitation. Radio firmware doesn't seem to have it enabled, but if you have a Radio firmware that can enable it, you'll have access to that band.

reuthermonkey said:
It's a software limitation. Radio firmware doesn't seem to have it enabled, but if you have a Radio firmware that can enable it, you'll have access to that band.
Click to expand...
Click to collapse
Are you saying we need to flash to the Captivate radio?

Kilack said:
Actually managed to enable 850...
Go down to combin bands, then enable it, then you can go back to wcdma band and select it there..
I dont have an 850 network to test on to see if it actually works though, doubt it does but worth a try...
update: nevermind doesn't work, checking info in the setup menu can still see it using 2100.
Click to expand...
Click to collapse
Dandarebr said:
Maybe it's because you are actually using 2100 at that moment. You should try using 3G when in a 850 MHZ only region.
Click to expand...
Click to collapse
Enabling 850 under Combi Bands certainly makes 850 available under WCDMA BAND. My gut tells me that just enabling wcdma 850 under combi and leaving the band selection automatic is the way to go. I am currently in a 850 + 1900 region and I cannot make the phone go to 850 only. However when I select automatic wcdma 850 goes away again.
I wish I had tried this 4 days ago as I was in an 850 only region on the weekend.
D

reuthermonkey said:
It's a software limitation. Radio firmware doesn't seem to have it enabled, but if you have a Radio firmware that can enable it, you'll have access to that band.
Click to expand...
Click to collapse
SWEET!
I wish we can switch the radio band on-the-fly.

Dark-Master said:
SWEET!
I wish we can switch the radio band on-the-fly.
Click to expand...
Click to collapse
seems to be working on my Vibrant:
http://forum.xda-developers.com/showpost.php?p=7388848&postcount=101

reuthermonkey said:
seems to be working on my Vibrant:
http://forum.xda-developers.com/showpost.php?p=7388848&postcount=101
Click to expand...
Click to collapse
thank you for the link.

reuthermonkey said:
seems to be working on my Vibrant:
http://forum.xda-developers.com/showpost.php?p=7388848&postcount=101
Click to expand...
Click to collapse
When i had the i9000 (now i have a Captivate for this specific reason) it did not work.
I did exactly what is described in the Vibrant post, select only 850Mhz WCDMA and WCDMA only and i got NO SERVICE where i do have 850Mhz 3g working in this area.
This might work on the Vibrant for some reason, but it does not work on the i9000.

[REF] The modem thread

Since modems seem to be a hot topic around here and no one seems to find the information they need, lets see if we can consolidate the info here to help out with the clutter.
Note: This is a reference thread, not a Q & A thread
Some basic rules:
Run 2.1 modems with 2.1 ROMs
Run 2.2 modems with 2.2 ROMs
Run a modem that goes with your kernel. EX: i9000 modem with i9000 kernel or captivate modem with captivate kernel, mixing and matching is playing with fire. You've been warned.
Modem Versioning:
Modems increase in major release by incrementing the alpha, and minor release by incrementing the numeric.
So, JI6 is more recent (and presumably better) than JI2.
Using an i9000 modem and the WCDMA 850 band:
The UGJK3, UGJK4, and TLJL3 modems have rendered the below obsolete. Use one of them and you will have 850 WCDMA enabled by default.
If you're going to do this, you must start from a 2.1 based ROM and the UGJG8 modem. It does not have to be done using odin 1 click or even a stock ROM, but if you are in doubt, that is probably the best thing to do. I personally used Cog 2.1.7, then applied the UGJG8 modem, then went to a 2.2 ROM of my choice.
Once you have a 2.1 rom with the UGJG8 modem, use the service menu and verify that you are in an 850 area. *#0011#. If it does not say WCDMA 850, use the soft menu buttons and navigate to
[7] PHONE CONTROL
[7] NETWORK CONTROL
[2] BAND SELECTION
[2] WCDMA BAND
[5] WCDMA 850
This will force your phone to use the WCDMA 850 band only. If you have no service after this, you are either not in an 850 area, or 850 is too weak to be picked up. To return to all bands, simply back out one level and select [1] AUTOMATIC.
Once you've verified your WCDMA 850 band is working, you must go to an i9000 ROM that also has the UGJG8 modem. If the i9000 ROM you want to use does not offer this you will have to open the ROM's CWM zip file with winrar or your favorite zip program, find the modem.bin file and replace it with the UGJG8 modem.bin. Now use CWM to apply your modified zip and wait for it to complete its first boot. Before doing anything else, go back to CWM and apply a proper i9000 modem, current favorites are xxjpm and xxjpp. After applying the i9000 modem, return to the band selection menu and this time select
[3] GSM BAND
[1] GSM ALL
Back to BAND SELECTION
[4] COMBI BANDS
[8] WCDMA 850 (FDD V)
At this point your phone will be configured to use any GSM band available, and only the WCDMA 850 band. If you have WCDMA 850 in your area, you should be able to return to the basic settings menu and see it connected to WCDMA 850 Band 5 or something similar. If you also want to allow it to connect to WCDMA 1900 then return to the combi bands menu and select it as well. All modems seem to prefer WCDMA 1900 if it is available even if WCDMA 850 is also available.
HSUPA and you
Currently only i9000 modems will enable HSUPA which is uploading at > ~300 kbps. All modems have HSDPA enabled. As posted below, while HSUPA primarily affects upload speeds, it has a secondary effect of faster downloads and lower latency as well.
Current 2.2 Modems:
UCJJ4 - AT&T Captivate (Uses WCDMA 850 by default)
UCJI6 - AT&T Captivate (Uses WCDMA 850 by default)
XXJPP - European GT-i9000 (Does not use WCDMA 850 by default)
XXJPM - European GT-i9000 (Does not use WCDMA 850 by default)
UGJK3 - Bell Vibrant GT-i9000 (Uses WCDMA 850 by default)
UGJK4 - Bell Vibrant GT-i9000 (Uses WCDMA 850 by default) Thread
TLJL3 - Telus GT-i9000 (Uses WCDMA 850 by default) Thread
Useful 2.1 Modems:
UGJH2 - Bell Vibrant GT-i9000 (Uses WCDMA 850 by default)
UGJG8 - Bell Vibrant GT-i9000 (Uses WCDMA 850 by default)
UCJH7 - AT&T Captivate from OTA update
UCJH3 - AT&T Captivate
UCJH2 - AT&T Captivate
UCJF6 - AT&T Captivate from stock ROM
The above list is far from complete. Attached are update.zip files that can be applied with CWM or opened up to get the modem.bin file for insertion into a ROM's zip package.

More Modems

another reservation.

Nice one. This should help out around here. I had the same idea and was gathering all the modem files. Glad i seen your thread

Thank you for this. Excellent information for someone like me who mixes and matches to get a custom rom to my liking!

I have a few questions. Why do some modems use more battery then others. If you have lets say jg8 or a jpp modem for example. I would believe they would draw the same amount since they all use the same bands. I'm sure their is more to this then just that like how specific algorithms are used to find a signal and perhaps maintain it.
I am interested in this because i would like to know for a fact which modems for i9000 and which ones for captivate would get the best battery life and signal. In order to find the best modem.
I know Eugene's old frankin twiz had the best battery life / signal i've ever seen on this phone and was wondering why it worked so well.

TheTodFather said:
I have a few questions. Why do some modems use more battery then others. If you have lets say jg8 or a jpp modem for example. I would believe they would draw the same amount since they all use the same bands. I'm sure their is more to this then just that like how specific algorithms are used to find a signal and perhaps maintain it.
I am interested in this because i would like to know for a fact which modems for i9000 and which ones for captivate would get the best battery life and signal. In order to find the best modem.
I know Eugene's old frankin twiz had the best battery life / signal i've ever seen on this phone and was wondering why it worked so well.
Click to expand...
Click to collapse
Was eugene doing any UVing? I have turned off the WCDMA 1900 band on my phone as it seems to always have a weaker signal than WCDMA 850 in my area. If I go off to another city or something that I think should have WCDMA coverage but isn't working on 850, I'll re-enable 1900. So far it seems like my battery is lasting longer, but it's only been today that I made the change. No undervolting yet and standard overclock. How much battery life are you after? I was probably getting about 16 - 24 hours before I made the change. I was getting better battery life with Cog 2.1.7 and undervolting, but I expect the undervolting had a considerable impact. Your best option is probably to grab some more of the i9000 2.2 modems and just run them to see if they give you any better or worse life.

smokestack76 said:
Nice one. This should help out around here. I had the same idea and was gathering all the modem files. Glad i seen your thread
Click to expand...
Click to collapse
Me too! Kudos and thanks!

Sticky this. Thank you!
Sent from my SAMSUNG-SGH-I897 using XDA App

HSUPA
Might want to add that only the I9000 modems support HSUPA.
And while HSUPA primarily benefits upload speed, there is a secondary impact on download speed. Received packets require acknowledgments (in the case of TCP, not UDP) that must be uploaded. If the upload path becomes congested, downloads will stop until received packets are acknowledged. This can happen if multiple PCs share the connection (tethering), or if multiple connections (socket connections) are in use. A single browser by itself can tie up 4 connections, more in some cases, per site. Have two browser tabs or windows open, do a file download etc., you can see how this can happen. HSUPA opens up that upload pipe.

Here is another AT&T (Captivate) Froyo 2.2 modem, JI2, and three more I9000 Froyo 2.2 modems, JP6, JPK, and JPA
These ARE NOT CWM ready, they are just the bin zipped up as XDA does not allow bin uploads.

Dudes! Once again you all freakin rock. Thank you very much for this extreemly helpful and useful thread!
Sent from my SAMSUNG-SGH-I897 using XDA App

I am pretty sure someone has already tried but I need to ask to make sure. Has anyone tried flashing a Vibrant radio to see if it enables the AWS band? And anyone try flashing Vibrant radio AND Vibrant ROM/kernel to see if it enables AWS?
I currently use a Captivate on T-mobile and if that works that would be amazing.

Hi, can I flash a modem while I am on running the voodoo lagfix? Or do I have to disable the lagfix before I can flash the modem? Thanks.

Nicely written thanks for all the info and downloads to all

so how about the rogers modem ?/ what is its number ? imho it clearly is the best stock modem allthough depending on what network you are on result might vary gps seems much much better on that particular modem fyi (btw I did test a few )

Thanks!! I have been doing some reading on modems and was trying to understand it all. This is def. a big big help!
So if I understand this correctly...
1. The "UCJJ4 - AT&T Captivate (Uses WCDMA 850 by default)" is a HSUPA modem, and the HSUPA is what many are after?
2. If I am already using this modem and I see WCDMA 850 Band 5 when using *#0011#... I alread have HSUPA enabled, correct?
Based on my previous question:
3. And if I wanted I could set it to solely use this or set it to automatic for 850 and 1900, right?
Thank you in advance for any insight!!

clarifications needed
Thanks for the post. I've had a lot of modem questions, and I'm glad you started this thread!
1. Since JJ4 and JI6 are Captivate modems with WCDMA 850 enabled, are any of the steps with JG8 needed if you stick with a 2.2 Captivate ROM?
2. Is the reason we want WCDMA 850 vs. WCDMA 1900 primarily for the better distance 850 gives vs 1900?
3. Does WCDMA imply HSDPA and HSUPA (when enabled in the modem)?
4. Your instructions say (after the initial stock/JG8) to put a JG8 modem in the i9000 ROM, upgrade/reboot, then apply a "proper i9000 modem." Why? This seems to mix the 2.2 ROM with a 2.1 modem. Also, if the i9000 ROM already has a 2.2 modem, why flash the JG8 one first?
TIA!

NO HSUPA on AT&T
lilmanx01 said:
So if I understand this correctly...
1. The "UCJJ4 - AT&T Captivate (Uses WCDMA 850 by default)" is a HSUPA modem, and the HSUPA is what many are after?
2. If I am already using this modem and I see WCDMA 850 Band 5 when using *#0011#... I alread have HSUPA enabled, correct?
Click to expand...
Click to collapse
mrkava said:
3. Does WCDMA imply HSDPA and HSUPA (when enabled in the modem)?
Click to expand...
Click to collapse
No, read the first sentence of my post one page back on HSUPA. As I said there, NO AT&T modems have HSUPA. WCDMA implies 3G, which always implies HSDPA, but does not imply HSUPA. The highspeed upload will only be usable if you are running a correct modem/kernel pairing, and if it is available in your area.
HSUPA can be found on both 850 and 1900.
1. Since JJ4 and JI6 are Captivate modems with WCDMA 850 enabled, are any of the steps with JG8 needed if you stick with a 2.2 Captivate ROM?
Click to expand...
Click to collapse
You should be fine on 850 on a Captivate rom without starting first with JG8. Just remember, this configuration will not have HSUPA if that is important to you.
2. Is the reason we want WCDMA 850 vs. WCDMA 1900 primarily for the better distance 850 gives vs 1900?
Click to expand...
Click to collapse
Many areas only have 850.
4. Your instructions say (after the initial stock/JG8) to put a JG8 modem in the i9000 ROM, upgrade/reboot, then apply a "proper i9000 modem." Why? This seems to mix the 2.2 ROM with a 2.1 modem. Also, if the i9000 ROM already has a 2.2 modem, why flash the JG8 one first?
Click to expand...
Click to collapse
You are correct, it does mix a 2.2 rom with a 2.1 modem. The purpose is ONLY to re-enable the 850 band. That's why you SHOULD NOT leave it this way, but replace it with a 2.2 modem as soon as you have your rom/kernel up and running on 850.

hmm... this is interesting. I'm in southern cali and my cappy always stays on 1900 band and hsupa is great so far. On speedtest, I was getting 2-3K dl and 1.5-2K upload speeds with almost full signal strength. I gotta check the wifey's cappy (still stock) and see if we have 850 in our area.

[Q] Does the European Optimus 7 supports WCDMA 850?

I bought an European Optimus 7 and it shows on the box "WCDMA 900/1900/2100, GSM850/900/1800/1900"
There's any way to put this phone to work on 3G WCDMA 850 networks at full speed?
Thanks

I own a Telus version of Optimus 7. My phone has the 900 3G band on it. I will tell you how to check whether your modem supports 850 or not. First, you open up the dialer and enter ##634#. This will install the MFG app, that will be accessible through your app list. The password that it asks is 277634#*#. Now you have access to the manufacturer test/setting menu. Proceed to the Engineer Menu, and then Modem Setting, followed by Band setting. There, you should see all the bands that are available, and WCMDA basically means UTMS or 3G. If you have the 850 band, it should be available in this menu. There are two other things you need to do before gaining access to this band, if available. But in order for me to continue, I need to know which carrier you plan to use this phone on. I am going to assume you want to use this in North America and you have already unlocked it. Let me know, and I shall help you further on making your phone functional for a 3G connection. BTW, I am typing this on my Optimus 7...the keyboard is seriously great, and if it wasn't for the loose buttons, I would have absolutely no regret over my purchase.

Thanks.
I saw here, there are these options available:
1.Automatic
2.WCDMA Only
3.GSM Only
4.WCDMA 850
5.WCDMA 1900
6.WCDMA 2100
7.GSM 850
8.GSM 900
9.GSM 1800
10.GSM 1900
11.WCDMA 900

Sorry for picking up this old thread again but there is no final answer on this.
The point is that I'm having the same problem, I have a european E900 and I can see the WCDMA 850 in the MFG settings. So is this working?
I'm going to Thailand next week and wanted to use True Move 3G which is on 850 Mhz.

Ok, just for the record - I am in Thailand now and the 850Mhz 3G Network from True Move is not working on the European E900.
Hope this helps for those who were looking for this answer.

[GUIDE][REF]Enable 850 Mhz band with any modem version for I9000M

Ok guys I don't want to take credit for any of this, the credits for this discovery goes to a captivate user in USA named shoman94. Here's his post.
I'm just reporting it here so a lot of canadian galaxy s users (I9000m) will save some search. The method to enable this frequencies is pretty simple but you need to have the recovery 2e version not the 3e that comes on UGJL2 firmware version from Bell. So if you still on stock firmware and want to play arround with modem version to see if you can find a better HSPA+ connection or a better GPS, I recommend you flash the last Speedmod Kernel via odin so you have clockworkmod recovery and the ability to apply update trought zip file not signed.
The method goes like this and it is good for I9000M / I9000T. (Might not work for I9000B as there is a tv tuner antenna so the modem firmware must be different and will not work for I9000 due to hardware limitation)
You need to have a modem that comes with 850 mhz enable (UGJL2, TLJL3, UGJK3, UGJK4, UGKC1). So if it's not your case just flash one of these modem first.
Put your phone on 850 mhz only mode. To do this just dial *#2263# in samsung dialer to enter the band selection utility. Enter menu [2] WCDMA Band en press on [5] WCDMA 850 (FDD V) and it should tell you W850 Only.
(Optional) You can dial *#0011# in samsung dialer to verify that you phone is realy using 850 band.
Reboot in recovery and update your modem with BVJJPD or BVJJPG version and reboot into android
(Optional) You can dial *#0011# in samsung dialer to verify that you phone is realy using 850 band.
Reboot into recovery and update your modem with the version of you choice (XXJVK or ZSJPG or XXJQ1 or BUJS1 or XXJVE etc) and reboot phone to android
Repeat step 2 and 3 and you should have network connection on 850 only. If it's not the case then you miss something and need to start again from step 1
If everything is good dial *#2263# again to reanable all the other fequencies so your phone can chose the strongest one depending on where you are. To do so select line [1] AUTOMATIC and it should said Select GSM & WCDMA All Bands. Then touch you optical menu button and hit back. Select Line [4] COMBI BANDS and click on the only one without asterisk ([8] WCDMA 850 (FDD V)).
Enjoy any modem version with 850 Mhz enable
Here a link to download the modem needed in step 1 and 4. There is also this site wich is good to find any of the i9000 modem version. Ironically they put UGJL2 modem under captivate folder even if it's use for I9000m.
Mod : It would be nice to have it pinned or at least added to the list of How to's and Guide.

Will this also work on JVK/B? Are there any special procedures necessary for Gingerbread?

Freija said:
Will this also work on JVK/B? Are there any special procedures necessary for Gingerbread?
Click to expand...
Click to collapse
Could not say as I haven't tried GB yet. But If you can install zip from sdcard in recovery I think it will work. This would need confirmation from other user but I'm currently using JVK modem with JS8 (2.2.1) so the other way arround should work too but I can't confirm. Make a complete backup with clockworkmod (data + system) so if it doesn't work you could just restore the system partition and everything will be fine.

could you attach the necessary modem files to your first post? or maybe a link to them
will help make it stickyable!

redzone321 said:
could you attach the necessary modem files to your first post? or maybe a link to them
will help make it stickyable!
Click to expand...
Click to collapse
Done, I've added the links to find all the zip file needed to change modem trought recovery zip flashing.

will this work on i9000GT ?

sp991 said:
Could not say as I haven't tried GB yet. But If you can install zip from sdcard in recovery I think it will work. This would need confirmation from other user but I'm currently using JVK modem with JS8 (2.2.1) so the other way arround should work too but I can't confirm. Make a complete backup with clockworkmod (data + system) so if it doesn't work you could just restore the system partition and everything will be fine.
Click to expand...
Click to collapse
In theory your process should work. However, I may be doing something wrong, but the gingerbread boot loader does not allow older-CWM flashing of the modem files I have found. If there is a kernel that allows flashing of older CWM files, or if I can find the .bin files of the BVJJPD or BVJJPG so that I can flash them with Odin, it should most likely work.
At this time though, I can tell you that flashing a Froyo modem such as UGJK4 on JVK/B Gingerbread works. This is the configuration I'm running right now, and my 850 MHz band seems fully operational.

pardon the noob question but I'm on a local carrier (GCI in Alaska) and my phone doesn't get 3G when I travel to areas where it exists (I'm rural). I think they want to charge for adding 3G, even though it exists only when traveling.
I found a reference how to enable it:
androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html
but I get an error saying the selection doesn't exist when trying to choose that 850mhz.
My carrier says it isn't enabled on SIM card. Am I S.O.L.? They have a Blackberry Plan for $30/month that says includes 3G, they have a $30 Android Smartphone plan that doesn't mention it either way, and then their basic $15 data plan I think doesn't mention it except they have a 3G option for $5 extra. Otherwise I only get Edge.
I've rooted the phone to install a couple things but haven't yet flashed any new firmware - it is buggy as heck (crashes a lot) so I'm reading the forums here - it is on baseband version XXJP2, thinking I may have to try something. Saw this thread and wondered if it would be of use to me.
thanks for patience, JD

Shedox-d said:
will this work on i9000GT ?
Click to expand...
Click to collapse
Never heard of this model #. GT-I9000 is the international version and it will work on it if you are refering to this version.
hunky-d said:
pardon the noob question but I'm on a local carrier (GCI in Alaska) and my phone doesn't get 3G when I travel to areas where it exists (I'm rural). I think they want to charge for adding 3G, even though it exists only when traveling.
I found a reference how to enable it:
androidforums.com/samsung-galaxy-s/258859-how-enable-850mhz-3g-network-frequency-your-samsung-i9000-galaxy-s.html
but I get an error saying the selection doesn't exist when trying to choose that 850mhz.
My carrier says it isn't enabled on SIM card. Am I S.O.L.? They have a Blackberry Plan for $30/month that says includes 3G, they have a $30 Android Smartphone plan that doesn't mention it either way, and then their basic $15 data plan I think doesn't mention it except they have a 3G option for $5 extra. Otherwise I only get Edge.
I've rooted the phone to install a couple things but haven't yet flashed any new firmware - it is buggy as heck (crashes a lot) so I'm reading the forums here - it is on baseband version XXJP2, thinking I may have to try something. Saw this thread and wondered if it would be of use to me.
thanks for patience, JD
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First you need to have a modem version that supports 850 Mhz to be able to enable it (i.e. UGJL2, TLJL3, UGJK3, UGJK4, UGKC1). Once you have one of these modem you might have to add the 850 band in combi bands screen before you can actually select "only 850" in WCDMA screen. If you have JP2 modem you will be able to enable 850 only mode but you won't get any reception.

I wish someone could figure out what this procedure actually does, there must be some specific difference (in settings files?) after the phone has gone through this procedure. That difference could potentially then be applied directly.
I have a slight interest in trying the newer modems but can't be bothered to jump through this many hoops.

sp991 said:
First you need to have a modem version that supports 850 Mhz to be able to enable it (i.e. UGJL2, TLJL3, UGJK3, UGJK4, UGKC1). Once you have one of these modem you might have to add the 850 band in combi bands screen before you can actually select "only 850" in WCDMA screen. If you have JP2 modem you will be able to enable 850 only mode but you won't get any reception.
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thanks sp991, Gives me enough to think about for a bit.. appreciate the info! /jd

haloimplant said:
I wish someone could figure out what this procedure actually does, there must be some specific difference (in settings files?) after the phone has gone through this procedure. That difference could potentially then be applied directly.
I have a slight interest in trying the newer modems but can't be bothered to jump through this many hoops.
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Once you have the file on your phone it take only 2 reboot time. 10 min max. It's not that hard and I've explained every little details so every one could follow these steps. Plus you only need to do it the first time you flash a modem that's not supposed to support 850. After that you can swich to any modem and still have 850 working.

aftter doing steps 1,2 and 3 i get no reception (if i go back to 2100 mhz, i get the signal back).
thx anyway.

To the OP, you might want to mention that this will NOT enable 850mhz on phones that do not have the hardware support!
I have enabled 850 on jvk and jvb modems with this method, they work fine with js8 froyo.

FuryriderX said:
To the OP, you might want to mention that this will NOT enable 850mhz on phones that do not have the hardware support!
I have enabled 850 on jvk and jvb modems with this method, they work fine with js8 froyo.
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All the i9000 have the same hardware, it's just that software is not there on some version. Do you really think samsung will have made a chip that support 850/900/1900/2100 and another one with only 900/1900/2100. Complete waste of time to change the assembling line plus there is report of people with i9000 having reception on 850 band with this method.

shedox said:
aftter doing steps 1,2 and 3 i get no reception (if i go back to 2100 mhz, i get the signal back).
thx anyway.
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If your operator uses 2100 frequencies it might not be using 850 too. Here in north america, operators use 850 and 1900 frequencie so we need to have both available but if your operator doesn't broadcast on 850 then you wont have any network!! My guess is that your operator uses 2100/900 or 2100/1900 frequencies or maybe they only have one. Where are you from?

sp991 said:
All the i9000 have the same hardware, it's just that software is not there on some version. Do you really think samsung will have made a chip that support 850/900/1900/2100 and another one with only 900/1900/2100. Complete waste of time to change the assembling line plus there is report of people with i9000 having reception on 850 band with this method.
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Sorry sir, but you are completely wrong.
Samsung has a variety of modem chipsets used in their Galaxy S phones worldwide.
In the USA, Captivate has 850/1900/2100. Vibrant has 1700/1900/2100.
Elsewhere I believe the regular I9000 has 900/1900/2100 and the I9000M has 850/1900/2100.
There is not just one model and there is no way to activate a band on a phone whose modem is not compatible.
I wish all phones just had all bands (Nokia and Apple do the best job of this) but we are not there yet unfortunately. I too would think it would be more economical, but there could be other reasons like carrier lock in (i.e. in the US you can't switch a Vibrant to AT&T or a Captivate to T-Mobile without loosing 3G coverage).

sp991 said:
If your operator uses 2100 frequencies it might not be using 850 too. Here in north america, operators use 850 and 1900 frequencie so we need to have both available but if your operator doesn't broadcast on 850 then you wont have any network!! My guess is that your operator uses 2100/900 or 2100/1900 frequencies or maybe they only have one. Where are you from?
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i have checked it, my operator support 850 mhz.
i guess its a hardware thing wich i cant change.

shedox said:
i have checked it, my operator support 850 mhz.
i guess its a hardware thing wich i cant change.
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Who's your operator? I'm wondering because 850/2100 combination is pretty uncommon.

chambo622 said:
Sorry sir, but you are completely wrong.
Samsung has a variety of modem chipsets used in their Galaxy S phones worldwide.
In the USA, Captivate has 850/1900/2100. Vibrant has 1700/1900/2100.
Elsewhere I believe the regular I9000 has 900/1900/2100 and the I9000M has 850/1900/2100.
There is not just one model and there is no way to activate a band on a phone whose modem is not compatible.
I wish all phones just had all bands (Nokia and Apple do the best job of this) but we are not there yet unfortunately. I too would think it would be more economical, but there could be other reasons like carrier lock in (i.e. in the US you can't switch a Vibrant to AT&T or a Captivate to T-Mobile without loosing 3G coverage).
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That's why I said I9000 refering to i9000/i9000m/i9000t. The galaxy S in the US are all f***ed up. I Don't understant why samsung has to made such different model.
Then how do you explain that it's impossible to have 850 band working on any modem other than UGJL2, TLJL3, UGJK3, UGJK4 or UGKC1 without using this method. Be my guest and try to get 850 band on JPJ, JVK or any other european modem without using this methode in the first place. If you already did then it's not valid as the 850 band will stay. But I can confirm you that if you skip the part about BVJJPD or BVJJPG and then you try to turn on 850 band in the service mod with JVK you will never get reception on 850. I've tried it before I found this method on captivate forum.
So I might be wrong but I think it just a firmware limitation or compatibilities that blocks 850 bands when you have european or asian modem.
Flashing BVJJPD or BVJJPG does something special and after that you have 850 available regardless of the modem firmware you use.
If the limitation is realy hardware then samsung is complettly stupid but they seems to have learn their lesson as the SGS 2 is advertise as HSPA+ 850/900/1900/2100.
But I don't think we have any way of confirming any of these theory out of any doubt so I'll change my first post.

1700 and 2100 wcdma on N7100 intational

So I was playing around with my unlocked note nd I found a selection of bands nd I can select them but not sure yet if it does unable 1700 nd 2100 bands to work on wind mobile or tmobile any ideas ive the pictures

What code did you enter to find those options?

Note 1 had the same menu options.
It doesn't mean anything without actual support in the phone.
I assume, like the Note 1, if you turn those on your phone is going to reject your sim card.
- Frank

Hi just peeked into this and was able to select 1700 band, go to comi bands and select 1700 wcdma and any other missing band and it will be selected. If it makes any difference i dont know since im in a good refarm area for tmobile.

ronj1986 said:
What code did you enter to find those options?
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*#197328640# nd Debug screen band selection youll find everything

ChodTheWacko said:
Note 1 had the same menu options.
It doesn't mean anything without actual support in the phone.
I assume, like the Note 1, if you turn those on your phone is going to reject your sim card.
- Frank
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I guess you right I used to own a note 1 but never tried it only if one can try nd see what happens because my sim is not getting rejected but I dont have a wind or tmobile to test with

5800xm_user said:
Hi just peeked into this and was able to select 1700 band, go to comi bands and select 1700 wcdma and any other missing band and it will be selected. If it makes any difference i dont know since im in a good refarm area for tmobile.
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By the sound of it our hardware just don't have the bands but yet we can select them kinda strange but if you could try using tmobile sim let use know what happens

I was able to do this also, with the leaked XXDLJ2 FW (4.1.2) - I tried with earlier FW before and couldn';t get into the menu - could be total noob error though...
Remove SIM card first.
Then power up Phone, dial #*197328640*
Select: DEBUG/PHONE CONTROL/NETWORK CONTROL/SELECT WCDMA BANDS
from there, it seems you can select ALL, or add the bands you want. (I'm on TMO USA so I selected 1700/1900/2100)
Now, what I don't know is...once you re-insert the SIM ( and you have to power cycle to do that) does the TMO SIM override the changes I just made? I have very weak 4G near my house so I cannot check if 4G is working or not.
CORRECTION: Forget what I said about removing SIM card !!! I was able to access the menu with the SIM inserted, and it looks like my settings are holding ( there's an asterisk next to the WCDMA bands I chose). This is promising!

I did this on a stock rom and after rebooting settings stay the same. Cant tell if itll make any difference since im at work and dont get good coverage. Will report as soon as i can and im on tmobile california

Sadly, it appears that any other setting than Automatic will disable WCDMA altogether - I sat in my car for 20 minutes right under a cell tower tryin to make it work, but was stuck on Edge...as soon as I selected AUTO, my phone jumped to H+ ...and it was on the 1900 Band since the 1700 band is automatically unchecked when switching to Auto. Oh well...gotta wait for the damn TMo refarm then.

The TMUS reframe is killin' me. Neither my house or work are in a reframed area. However, there are several points on my commute that are reframed, and I did have a chance to eat dinner in one. Holy moly is HSPA+ fast! EDGE is virtually useless with these devices.

McNoob said:
Sadly, it appears that any other setting than Automatic will disable WCDMA altogether - I sat in my car for 20 minutes right under a cell tower tryin to make it work, but was stuck on Edge...as soon as I selected AUTO, my phone jumped to H+ ...and it was on the 1900 Band since the 1700 band is automatically unchecked when switching to Auto. Oh well...gotta wait for the damn TMo refarm then.
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you can select mulit bands that way you dont have to use auto as it does turn em off ,i used the last selection it lets you select what you want

Sorry to check in late but with these changes I notice that my signal sticks to 2g and barely wants to switch to H or H+. Maybe when Im off work Im gonna try to select all wcdma band and switch to wcdma only in network mode. when selecting network mode i notice it changes all the settings in the service menu.

leeroy1034 said:
you can select mulit bands that way you dont have to use auto as it does turn em off ,i used the last selection it lets you select what you want
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that's what I've been doing - COMBI BANDS, and add GSM 850/900/1800/1900 and WCDMA 1700/1900/2100.
But it didn't work for me, phone remains stuck on EDGE -

I dont think this does much only put me in Edge mode or no data at all. Its weird that theres an option for it. So ya no luck here...