I9000 working on 3G 850MHz HSDPA Band!!

Dandarebr · Jul 27, 2010

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

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

shollywood · Jul 28, 2010

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

dipac · Jul 28, 2010

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.

NeoXTC · Jul 28, 2010

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.

Kilack · Jul 28, 2010

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.

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

Kilack · Jul 28, 2010

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.

This is correct! but sometimes the radio will support bands that aren't enabled in the firmware, was hopeful

.

Kilack · Jul 28, 2010

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.

Dandarebr · Jul 28, 2010

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.

Maybe it's because you are actually using 2100 at that moment. You should try using 3G when in a 850 MHZ only region.

reuthermonkey · Jul 28, 2010

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

lgkahn · Jul 28, 2010

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

INeedYourHelp · Jul 28, 2010

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.

I get the same exact thing.... Can someone PLZ tell us how to do this?

AllGamer · Jul 28, 2010

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

Dark-Master · Jul 28, 2010

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.

reuthermonkey · Jul 28, 2010

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.

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.

INeedYourHelp · Jul 28, 2010

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.

Are you saying we need to flash to the Captivate radio?

dmulligan · Jul 28, 2010

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.

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.

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

Dark-Master · Jul 28, 2010

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.

SWEET!

I wish we can switch the radio band on-the-fly.

reuthermonkey · Jul 28, 2010

Dark-Master said:
SWEET!

I wish we can switch the radio band on-the-fly.

seems to be working on my Vibrant:
http://xdaforums.com/showpost.php?p=7388848&postcount=101

INeedYourHelp · Jul 28, 2010

reuthermonkey said:
seems to be working on my Vibrant:
http://xdaforums.com/showpost.php?p=7388848&postcount=101

thank you for the link.

clubtech · Jul 28, 2010

reuthermonkey said:
seems to be working on my Vibrant:
http://xdaforums.com/showpost.php?p=7388848&postcount=101

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.

I9000 working on 3G 850MHz HSDPA Band!!

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