Database Users

i-mate PPC GSM Band

Hey folks,
Is there a utility/hack that allows you to change the GSM band from 900/1800 to just search the 1900 band? Since upping to 1.72 my radio always locks onto the 900 band and stays there for ages before locking onto my operator (on the 1900 band). I have to have at least 80% signal level. I know that 900 generally is a stronger signal (the other operator is always at least 10-20% over my operator), so thats why [note: I cannot roam with the other operator].. I know the new iPaq seems to have a band select, and my Treo 600 does too....
HTC do you have a util?
Any help greatly appreciated.
Art

under my phone settings i can choose network and set pref network and all kind of stuff like that
HTC do you have a util?
Click to expand...
Click to collapse
i really doubt that HTC hang around this site you i think that
any questions you want to aim at HTC have to be mailed to them

Try this: go to phone, tools, options, network, network selection and put it in Manual, select your network and OK.
Tell us if it works well thus.
If it dont work, you can install old radio version.

Thanks folks for the replies.. That's actually how I have it set now (manual on my operator), but for some reason when you turn the radio on it locks on to the 900 band and just sits there.. If I walk around until a strong enough signal is obtained from my operator it'll lock on; but as you can imagine this is really annoying.
Thanks again for your pointers. If I find anything out I'll let you know, as I've also shot an e-mail to Carrier Devices; and will shoot something directly at HTC.
I may also drop down to Radio 1.10; but I hate having to re-install all my software again..

You can make backup, install old radio version and make restore.

Enable GSM band selection

Dunno if it makes any use, but an HK extend rom cab file will enable the band selection on yr phone device (what it did just put some registry setting on HKLM/Software/OEM/PhonePH.
I am thinking if we could get 850mzh working if we know the correct ItemValue for it
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\OEM\PhonePH]
"ShowBandPage"=dword:00000001
"ItemCount"=dword:00000005
"ItemName1"="Automatic"
"ItemValue1"=dword:00000007
"ItemName2"="GSM 900"
"ItemValue2"=dword:00000001
"ItemName3"="GSM 1800"
"ItemValue3"=dword:00000002
"ItemName4"="GSM 900 / 1800"
"ItemValue4"=dword:00000003
"ItemName5"="GSM 1900"
"ItemValue5"=dword:00000004
ftp://xda:[email protected]_ROM_O2mini_HK/Band_Select_Enable.sa.CAB

Taking a wild stab in the dark, given that 1, 2, 3, 4, 5 and 7 are taken, have you tried 6?

KevinL said:
Taking a wild stab in the dark, given that 1, 2, 3, 4, 5 and 7 are taken, have you tried 6?
Click to expand...
Click to collapse
I am living in North America which I can only test 1900
I found both 7 and 4 works for me (fail if using 1,2 or 3)
People in other GSM region (especially ppl in LA where 850 is available could try the missing 5 & 6 value) can try if other GSM region works for U.
7 = automatic
1 = 900mzh
2 = 1800mzh
3 = 900 / 1800mzh
4 = 1900mzh

5 and 6 seem to act like auto to me. I have both 850 and 1900 coverages and I am not seeing any differences with those 2 settings. They both act like the auto or 1900.

HI Everybody!!!
I have created one more setting under the value 5, as well I have changed showItem value from 5 to 6, but still the BAND page rejected to show all GSM bands I have. As a result I have deleted 900/1800 and putted 850 with value 5. Have no idea if it works or no, cos I am living in Europe, but now my BAND page looks very cool
WELCOME NEW i-mate JAM Pro 850/900/1800/1900 !!!
PS It will be nice if some one could really check the values 5,6,8,9
Thanx to jackleung for this post,
Good luck…

For some reason I can only see the 900 and 1900 band in my band select page. I have previously applied the .cab file and now I manually editted the registry again, but the band select page still only shows 2 bands, 900 and 1900. Does anyone have a solution?

Koksie said:
For some reason I can only see the 900 and 1900 band in my band select page. I have previously applied the .cab file and now I manually editted the registry again, but the band select page still only shows 2 bands, 900 and 1900. Does anyone have a solution?
Click to expand...
Click to collapse
What's yr ItemCount value?

Koksie said:
For some reason I can only see the 900 and 1900 band in my band select page. I have previously applied the .cab file and now I manually editted the registry again, but the band select page still only shows 2 bands, 900 and 1900. Does anyone have a solution?
Click to expand...
Click to collapse
What's yr ItemCount value?

ItemCount is a D-Word with value 5

How can one actually tell what band the JAM is currently communicating on? I was sure it's not a firmware or software setting and more likely in the hardware of the JAM, so it's kinda like relabeling your gear shift numbers or adding a number to it in your car - I don't think it's going to add any more functionality to your device.
Surely if the unit was a true quad-band in hardware, they would have supported and advertised that.

BeyondtheTech said:
How can one actually tell what band the JAM is currently communicating on?
Click to expand...
Click to collapse
Just because many of us not living in 850mzh area and that's why we need someone who does to try it. But it looks the orginal value from the cab file really does what it declared.

Someone should give this a try. There's a possible way to try it. If you've got a PM10A (without the 850 support), follow the guidlines in this thread, select 850 as your band, reboot and use the program mentioned before to see what cell your operating on.
Then just look up the cell and see wether or not it's an 850. It would be awesome if it were.

Someone should give this a try. There's a possible way to try it. If you've got a PM10A (without the 850 support), follow the guidlines in this thread, select 850 as your band, reboot and use the program mentioned before to see what cell your operating on.
Then just look up the cell and see wether or not it's an 850. It would be awesome if it were.

BeyondtheTech said:
How can one actually tell what band the JAM is currently communicating on? I was sure it's not a firmware or software setting and more likely in the hardware of the JAM, so it's kinda like relabeling your gear shift numbers or adding a number to it in your car - I don't think it's going to add any more functionality to your device.
Surely if the unit was a true quad-band in hardware, they would have supported and advertised that.
Click to expand...
Click to collapse
You're absolutely correct. All this does is enable a page that shows the 850 band. It has been hidden otherwise to stop any confusion by the end user. IT TAKES A HARDWARE CHANGE. The radio must be tuned to receive the 850 band. No amount of software tweaking is going to change that....sorry.
Dave

How do you know that with so much certainty?

Shawn_230 said:
How do you know that with so much certainty?
Click to expand...
Click to collapse
It has been tried numerous times on numerous devices. Plus I have read reports from people who work for carriers who confirm this. Not to mention hearing from numerous people over the years who work in the industry who have a much better understanding of the situation.
dave

Thanks for the clarification... at least it looks cool.

Shawn_230 said:
Thanks for the clarification... at least it looks cool.
Click to expand...
Click to collapse

How is it possible to verify the GSM Band Section?
After to have modified the GSM Band Selection I don't have the confirmation of my choice. Wich is the mean of checking that?

please anyone can re-upload the cab file. I cannot find it on the xda ftp site. please please and thanks in advance

How to enbale 3g on t-mobile tab using att sim

TRY the secret code of *#*#2263#*#* ? This will work on tmobile’s samsung vibrant. This will allow you to check mark the 850mhz and 1900 mhz frequency for att 3g network. If you are on tmobile it will need 1700 AWS and 2100 MHZ for tmobile 3g. I would check all the frequencies so you won’t have to worry about this anymore. Let me know if that works for you. Thanks

this is questionable...seeing that you spelled enable wrong..

Instead of being sarcastic , why don't you just try it. I was trying to be helpful to the forum since i have received so much useful knowledge from all of you collectively . I stumbled on this by accident so i thought i would share it

Sorry, even though the menu choices are there, the hardware isn't. The vibrant does have the ability to use all the frequencies, but not the tab. I think samsung used one menu for every tab model.
Anyway the code is *#2263#. Keep trying -- we need a solution!

How one can dial *#2263# on T-Mobile tab, which doesn't have the dialer?

joedoe said:
How one can dial *#2263# on T-Mobile tab, which doesn't have the dialer?
Click to expand...
Click to collapse
or does it?
Seriously, this is the Dev section. Of course it does, With the right ROM.

joedoe said:
How one can dial *#2263# on T-Mobile tab, which doesn't have the dialer?
Click to expand...
Click to collapse
Flash any rom besides a stock rom and you will have the phone dialer.

Heres what I don't get.. Why can't I select the 1700mhz band. When I do it selects the 900mhz band.
I am using Simple Mobile, so theres no way for Tmobile to block the IMEI number....
If I use a stock rom, it works 3g no problems.

The radio band is a limitation of the firmware on the device - the TMO devices are configured to only use the 1700/2100 AWS combination, while the AT&T variant is configured to use 850 or 1900. (Both also appear to work on the 2100 Euro frequency).
To change the available radio bands it appears that not only must we change the Android firmware & modem, but also we need to change the firmware for the RF amplifier chip which is sold by Infineon as being universal.
So far, nobody has figured out how to do this.
Hence we have the 2G limitation on the TMO tabs, and no way of switching between AT&T and TMO frequencies on the same tab.
The IMEI issue is a red herring that is only relevant if you are trying to use a regular TMO phone SIM from a normal TMO phone account in a Tab. They will not let you use a SIM from a standard phone account in your TAB because they want you to pay twice for the data - once for your phone, and again for the Tab. You can't simply drop your phone SIM into your tab whenever you want 3G data on your Tab. This is what they block by checking the IMEI number against your account type.
Sent from my SGH-T849 using XDA App

themachfive said:
Heres what I don't get.. Why can't I select the 1700mhz band. When I do it selects the 900mhz band.
I am using Simple Mobile, so theres no way for Tmobile to block the IMEI number....
If I use a stock rom, it works 3g no problems.
Click to expand...
Click to collapse
Samsung uses the same service menu for all models of the tab, so all possible frequencies are on the menu. If there were no differences between carrier models we would ask have the same model number. Different models, carriers, hardware.

deleted...

rangercaptain said:
Samsung uses the same service menu for all models of the tab, so all possible frequencies are on the menu. If there were no differences between carrier models we would ask have the same model number. Different models, carriers, hardware.
Click to expand...
Click to collapse
I get that.. I come from the land of the HTC Leo. For a long time all we had was edge service, the RMNET 3g, then PPP 3g, then clockwork and finally true RMNET 3g. However, my thoughts are.. If the stock ROM comes with 3g service enabled, there has to be a way to suck out the guts that make it work. Also within our "phone" enabled roms there also has to be a way to split the data within the rom. Sorry if it makes sense to me but look at it like this.. Roto has a modem switcher, why couldn't we just code the rom while cooking to use one modem for data and the other for calls?
Just remember that no matter what device you are using, when on a phone call - Data does not work.
Please shed some light on the details I am missing..

themachfive said:
Heres what I don't get.. Why can't I select the 1700mhz band. When I do it selects the 900mhz band.
I am using Simple Mobile, so theres no way for Tmobile to block the IMEI number....
If I use a stock rom, it works 3g no problems.
Click to expand...
Click to collapse
Wait a minute... Did you flash a Euro ROM over a US TMO Tab?
if so, you should be able to use the Roto Modem switcher that will allow you to use the TMO U S modem if you need 3G, or switch to the Euro modem to do calls and EDGE...
otherwise, something here does not ad up...

themachfive said:
... If the stock ROM comes with 3g service enabled, there has to be a way to suck out the guts that make it work. Also ... Roto has a modem switcher, why couldn't we just code the rom while cooking to use one modem for data and the other for calls?
Please shed some light on the details I am missing..
Click to expand...
Click to collapse
Roto actually tried to hack together the data code from the stock TMO 3G modem with the voice bits from the Euro one, but was not able to get it to work. Others have tried to flash modems from the Samsung Vibrant (which is in theory the same device in phone clothes), but the Vibrant modems will not play nice with the Tab and will not support 3G even with the US firmware...
There is something under the hood that we are not able to access that is blocking full phone capability on the TMO tab.

rushstatus1 said:
TRY the secret code of *#*#2263#*#* ? This will work on tmobile’s samsung vibrant. This will allow you to check mark the 850mhz and 1900 mhz frequency for att 3g network. If you are on tmobile it will need 1700 AWS and 2100 MHZ for tmobile 3g. I would check all the frequencies so you won’t have to worry about this anymore. Let me know if that works for you. Thanks
Click to expand...
Click to collapse
is it possible to use att tab with tmobile sim and get 3g+phone

themachfive said:
Roto has a modem switcher, why couldn't we just code the rom while cooking to use one modem for data and the other for calls?
Please shed some light on the details I am missing..
Click to expand...
Click to collapse
I agree with your approach. The modem.bin files we use with the modem switch both do what we want, but are excluding some hardware options.
My idea would be for someone to open the two binary files side-by-side to compare and find the line that turns on/off the voice in the 2g and 3g modems.
To that end we have a bounty thread in the general section, to attract the talent and skill we need. Why not go make a pledge? The higher the sooner!

maxtcee said:
is it possible to use att tab with tmobile sim and get 3g+phone
Click to expand...
Click to collapse
I will try that in a few and report back. Good idea.

---ATTENTION ALL--- hey guys the only dialer pads are from the euro roms which uses a diff freq then north america we would need to make an american rom with tmobile or att united states 3g freq's this is why u can either hav 3g data or cellular serves also for u guys that hav cellular in order to hav 3g data you would hav to trash ur imei and make a new one tmous has all galaxy tab imei's locked for data only.... hoped this helped u all and we are out here lookin and waitin... GoodDay

themachfive said:
Heres what I don't get.. Why can't I select the 1700mhz band. When I do it selects the 900mhz band.
I am using Simple Mobile, so theres no way for Tmobile to block the IMEI number....
If I use a stock rom, it works 3g no problems.
Click to expand...
Click to collapse
according to roto, simple mobile uses tmobile infrastructure, so the speculation is that tmobile is still effectively blocking the imei.

[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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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).
Click to expand...
Click to collapse
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.

S5360L band changing ?

hi
i have here few PCS of S5630L
its same phone but bands are not the same.
HSDPA 7.2 850/1900MHz
anyone think it can be changed via software ? or its a hardware issue ?
if so can i change bands filters ?
thx

anything ? anyone ?

it can never be done,
it is the internal radio which transmits and receives frequencies,
which is a hardware thing,
if i got you correctly S530L is CDMA and you want a GSM band

deathnotice01 said:
it can never be done,
it is the internal radio which transmits and receives frequencies,
which is a hardware thing,
if i got you correctly S530L is CDMA and you want a GSM band
Click to expand...
Click to collapse
This model is not cdma, irs gsm model fits to some countries like brazil and argentina.
so this phone works only on quad gsm 2g network with no, but on 3g networks it works only on 850/1900 and i need 2100
On older nokia phones we changed anttena duplexer and bands filters and it did the job.
On newer phone like i9000 we can change bands via programing menu.
I just wonder if it can be done even with hardware changes.
Thanks

Anyone ??
I tried *#*#197328640#*#* but not working