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.
Hi!
On one thread I read the JPP is only European then on the other it says European and US so has anyone used JPP on the USA without issues? It was rated highest in the thread that listed it as USA so I am hoping it works.
shaolin95 said:
Hi!
On one thread I read the JPP is only European then on the other it says European and US so has anyone used JPP on the USA without issues? It was rated highest in the thread that listed it as USA so I am hoping it works.
Click to expand...
Click to collapse
depends on the service coverage in your area. if your area is mostly all 1900, then you shouldnt have any problems with it
Jpp will work but you have to follow certain steps that noone can fully explain why it works.
Flash to stock
Flash jg8 modem
Flash jpp or jpm
These modems have support for 850 but for wherever reason it is only enabled by flashing the magical jg8 modem first.
Prior to the latest modems, this is what we had to do in order to use i9000 roms when 850 was needed.
After flashing the jg8 modem, allow the phone to boot and obtain a signal, them put the jpp modem in the rom zip in place of the modem.bin that is present. All these modems can be found in the modem thread which I am sure you know of.
Yeah I recall that process before. It seems that at home I dont use 850 but if I am at work I need it. So I cannot just flash JG8 with my current ROM and then JPP I need to go to stock? What stock is this cause stock would be Eclair so not quite sure here
Noone knows why this works but it is the only method that is proven. I don't believe flashing the modem over your current setup will work but you can give it a shot.
Sorry for this-I am just new to GT/Android.
In using phones as long as you have the correct frequency you can always use your phone anywhere in the world,using the sim card for that particular place. No need to hack or flash the modem.
The Galaxy tab is supposed to be also a phone. Why do I have to flash the modem? Is there no universal type of modem for android?
I assume that there is different firmware at least for the CDMA and GSM versions, and that on top of that there are incremental updates to the modem firmware.
If anyone else has any more/other info I'd also be interested to hear it.
E.g. Is the modem firmware provider dependent too?
The modem is a binary file to operate the radio, and with each rom upgrade, there is a modem tweak too.
The samsung galaxy s line of tabs and phones have a few radios in common, for example the vibrant, i9000, and tab use the same radio chipset.
US t-mobile tabs should:
get 2g+voice using a vibrant modem, and the stock radio for 3g data only, and you have to install the modem switch software by Rotohammer.
North American at&t tabs should:
get voice and 3g data using the JK3 modem from the i9000.
These guidelines assume you use a compatible sim, at&t sim in at&t tab, t-mo or simple mobile sim in t-mo tab.
Hello, i live in Balkans(Europe), my SGS can connect only in cities and not in rural areas( it has no signal outside cities)
When i type *#0011# it is saying that it was connected to GSM 1800 and my country uses GSM 900, there are probably some antennas in main cities that work on GSM 1800. I tried to set it in GSM900 mode but then i cant get any signal.
I am having very difficulties when traveling.
Is it maybe a problem with internal antenna or is it software related.
The problem started when I flashed to gingerbread 2.3.3 (darky - ficeto or something)
now i have this:
PDA: I9000XWJVH
PHONE: I9000XXJVO
CSC: I9000XEEJVH
Try flashing just a modem for your area (or a different modem) in CWM or Odin. That should help. No need to change anything else.
G
gfacer said:
Try flashing just a modem for your area (or a different modem) in CWM or Odin. That should help. No need to change anything else.
G
Click to expand...
Click to collapse
+1.....have a look around for the best modem for your country, or ask in modem thread....make sure you get the right thread as modems for samsung and cm7 are different
I have a question I'm hoping an expert can answer. I pretty new to the Android world so I'm trying to wrap my head around a few things..
So I bought a (prepaid/locked) S5830T from a store over here, and proceeded to unlock and upgrade to the latest
stock Gingerbread firmware (2.3.6). So now when I boot up, instead of S5830T, I get S5830. All good.
Now the phone runs fine, but I have an issue with 3G data in particular.
The "T" suffix appears to relate to the 'Telstra network' (which the phone was originally locked to).
According to this link - http://whirlpool.net.au/wiki/mobile_phone_frequencies
Telstra operates on 900Hz / 1800hz for 2G and 850hz / 2100hz for 3G.
The carrier I am on (Optus) operates on 900Hz / 1800hz for 2G and 900hz / 2100hz for 3G.
So I've flash the modem file from the Optus firmware package (Modem_S5830_XWKT3) hoping that that would enable
the 3G band that is currently not working.
(What happens ins 2G/"H" works fine, but when the phone switches to "3G" I lose all data connections)
But Alas, I still have the same problem..
So I'm wondering is there hardware in the phone that is preventing connection to the network, or do I need to find a more
appropriate Modem file that operates on the frequencies above?
Many Thanks!
BrikHaus
BrikHaus said:
I have a question I'm hoping an expert can answer. I pretty new to the Android world so I'm trying to wrap my head around a few things..
So I bought a (prepaid/locked) S5830T from a store over here, and proceeded to unlock and upgrade to the latest
stock Gingerbread firmware (2.3.6). So now when I boot up, instead of S5830T, I get S5830. All good.
Now the phone runs fine, but I have an issue with 3G data in particular.
The "T" suffix appears to relate to the 'Telstra network' (which the phone was originally locked to).
According to this link - http://whirlpool.net.au/wiki/mobile_phone_frequencies
Telstra operates on 900Hz / 1800hz for 2G and 850hz / 2100hz for 3G.
The carrier I am on (Optus) operates on 900Hz / 1800hz for 2G and 900hz / 2100hz for 3G.
So I've flash the modem file from the Optus firmware package (Modem_S5830_XWKT3) hoping that that would enable
the 3G band that is currently not working.
(What happens ins 2G/"H" works fine, but when the phone switches to "3G" I lose all data connections)
But Alas, I still have the same problem..
So I'm wondering is there hardware in the phone that is preventing connection to the network, or do I need to find a more
appropriate Modem file that operates on the frequencies above?
Many Thanks!
BrikHaus
Click to expand...
Click to collapse
Can you find the original Telstra firmware, extract the modem from that and flash it?
Can you get hold of a Telstra SIM and see if you still have the same issues?
The T doesn't necessarily signify Telstra but just a slightly different version of the S5830
It's the same with SGS2 there is a GT-i9100 and GT-i9100T (I have the T version purchased in Thailand so nothing to do with Telstra)
Because I have used this phone in Australia also, I've noticed that T modems perform better on my SGS2 than non-T versions.
I've found Optus coverage (in Melbourne) to be pathetic so I always have to ensure I'm using a T modem when I'm there.
ApriliaM3 said:
Can you find the original Telstra firmware, extract the modem from that and flash it?
Can you get hold of a Telstra SIM and see if you still have the same issues?
The T doesn't necessarily signify Telstra but just a slightly different version of the S5830
It's the same with SGS2 there is a GT-i9100 and GT-i9100T (I have the T version purchased in Thailand so nothing to do with Telstra)
Because I have used this phone in Australia also, I've noticed that T modems perform better on my SGS2 than non-T versions.
I've found Optus coverage (in Melbourne) to be pathetic so I always have to ensure I'm using a T modem when I'm there.
Click to expand...
Click to collapse
Hey, Thanks for the reply ApriliaM3.
Yeah I know the T doesn't necessarily mean Telstra, but was pretty sure it meant there was a different modem to stock (as with your SGS2).
Which is why I reverted back to stock. I thought that may have been more accommodating of all frequencies..
That's very interesting what you say regarding your T modem.
I believe I can extract the modem from my base backup, so will give that a try.
As for the Telstra sim, that might be a little harder, but I'll try the modem first and then try to get a sim.
Thanks for the info!
BrikHaus said:
Hey, Thanks for the reply ApriliaM3.
Yeah I know the T doesn't necessarily mean Telstra, but was pretty sure it meant there was a different modem to stock (as with your SGS2).
Which is why I reverted back to stock. I thought that may have been more accommodating of all frequencies..
That's very interesting what you say regarding your T modem.
I believe I can extract the modem from my base backup, so will give that a try.
As for the Telstra sim, that might be a little harder, but I'll try the modem first and then try to get a sim.
Thanks for the info!
Click to expand...
Click to collapse
I get the impression that my requirement for a T modem when I'm in Melbourne has more to do with Optus and their pathetic coverage than it has to do with the modem. When I'm in Thailand, it doesn't seem to matter what modem I use... they all get good signals and I have no problem with data either. I'm also a member on Whirlpool but I rarely go there any more... still it's quite a handy and informative site for many things