Database Develop

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

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

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

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

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

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

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

It just said
Rejected
when I did that.

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

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

Yep, that works, thanks!

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

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

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

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

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

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

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

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

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

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

So its JPP modem compatible with the USA or not? I keep reading different info

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.

[Q] 850Mhz modem.bin and CwM

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

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

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

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

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

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

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

[Q] Changing 3G frequency band

I have bought a GT-I8190 (Unbranded/Unlocked) in Spain, which operates in 3G frequency band 900/1900/2100. The problem is that I live in Argentina, and here the 3G frequency is 850Hz. I would like to know if there is any hardware limitiation for the 3G frequency band or is just a firmware limitation. I've read that flashing a latinamerican modem (I8190L version) may solve the problem. Has anyone try this? What can I do?
Please let me know, cause i'm tired of dealing with EDGE.
Sorry for my english, i speak spanish.
Thank you!

I dont know about hardware differences, if there is any.
You could try to extract modem.bin from i8190L firmware and put it a .tar and flash with odin, but i'm not sure thats enough.
There's also a service menu if you type * # * # 1 9 7 3 2 8 6 4 0 # * # *
This is for SGS, but I think menus are quite similar.
HOW TO: Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S

Hi tys0n, thank you for your reply! I have a few questions.
tys0n said:
There's also a service menu if you type * # * # 1 9 7 3 2 8 6 4 0 # * # *
This is for SGS, but I think menus are quite similar.
HOW TO: Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S
Click to expand...
Click to collapse
I've seen this tutorial before, i've already try it, with no success. In the WCDMA Band submenu, the 850 option is missing,
tys0n said:
I dont know about hardware differences, if there is any.
You could try to extract modem.bin from i8190L firmware and put it a .tar and flash with odin, but i'm not sure thats enough.
Click to expand...
Click to collapse
Is there any risk of bricking the phone by doing this? I want to be sure of what I'm doing. If something does wrong, is there any way to go back to stock modem?
Thank you!

tomasboccardo said:
Hi tys0n, thank you for your reply! I have a few questions.
I've seen this tutorial before, i've already try it, with no success. In the WCDMA Band submenu, the 850 option is missing,
Click to expand...
Click to collapse
I didn't find it either but I was thinking it might be there if you flash a modem for that frequency.
Is there any risk of bricking the phone by doing this? I want to be sure of what I'm doing. If something does wrong, is there any way to go back to stock modem?
Thank you!
Click to expand...
Click to collapse
I don't think there is a chance of bricking it by changing modem. I've done it on my P7500 tab and my galaxy wonder without crying.
Question is if Odin will let it pass, and if so, maybe you'll also need to flash cache.img to get the "sec_csc.zip" for csc code and apn settings to be correct set in system. Not sure..
Edit: Seems like odin fails on modem.
http://forum.xda-developers.com/showthread.php?t=2185896

same here
tomasboccardo said:
I have bought a GT-I8190 (Unbranded/Unlocked) in Spain, which operates in 3G frequency band 900/1900/2100. The problem is that I live in Argentina, and here the 3G frequency is 850Hz. I would like to know if there is any hardware limitiation for the 3G frequency band or is just a firmware limitation. I've read that flashing a latinamerican modem (I8190L version) may solve the problem. Has anyone try this? What can I do?
Please let me know, cause i'm tired of dealing with EDGE.
Sorry for my english, i speak spanish.
Thank you!
Click to expand...
Click to collapse
Did you have luck change it to 850Hz?, if yes can you let me know how you did it.
Thank you!

waldo24 said:
Did you have luck change it to 850Hz?, if yes can you let me know how you did it.
Thank you!
Click to expand...
Click to collapse
I couldn't do it yet. If someone could, please tell us how!
Thank you!!

I8190 Problem
Hey people,
Got the same problem here, did not see the difference between the I8190 and the I8190L and now I´m dealing with the problem of being connected only in EDGE, dou you guys already solved the problem???
If´s that so, please let us know.

Same problem here
I have excactly the same problem. Got a GT-I8190N, and here they use 850mhz :crying:
have searched every corner of the web, but havent found a solution. If anyone manages to make these things use 850mhz band PLEASE tell us how you did it.

Tried but failed
Fon anyone interested, i flashed GT-I8190N my phone using a GT-I8190L firmware for my country / operator, and i was still unable to use 3G internet. only Edge.
The phone worked fine in all other aspects (except the NFC feature was gone of course), but still no 3G. i guess the bands are not only determined by software, but also by hardware.
By now i guess its safe (for me) to say, i will have to learn to live with Edge, or get another phone. :crying:

ErnestoRD said:
Fon anyone interested, i flashed GT-I8190N my phone using a GT-I8190L firmware for my country / operator, and i was still unable to use 3G internet. only Edge.
The phone worked fine in all other aspects (except the NFC feature was gone of course), but still no 3G. i guess the bands are not only determined by software, but also by hardware.
By now i guess its safe (for me) to say, i will have to learn to live with Edge, or get another phone. :crying:
Click to expand...
Click to collapse
Did you manage to change the modem.bin (baseband)? All I've tried and seen about it results in softbrick.

it dint brick it (THANK GOD)
tys0n said:
Did you manage to change the modem.bin (baseband)? All I've tried and seen about it results in softbrick.
Click to expand...
Click to collapse
Yes, actually that was the first thing i tried.
I downloaded the Whole firmware for the GT-I8190L for my local operator (MX Telcel), then i extracted the modem .bin file from it, and in odin i flashed it to the phone.
Phone worked fine, but still only edge.
So i decided to flash the whole firmware just in case, did so with odin, when my phone restarted i had the cheesy, bloated, horrible load animation my POS operator forces on all its phone, but still i was only able to use edge. no 3g.
Went to the phone service menu (if thats what its called?) dialing *#0011# then using the BACK menu option ->network -> etc. and still the 850mhz band option was missing. only got 900mhz (same as before).
At this point i was now stucked with the extra-extra-extra crappy logos and tons of crapware my provider installs on the phones, still without 3g, and all the NFC setting options dissapeared on the settings menu, but otherwise the phone was not bricked at all, it worked fine
So i downloaded this unbranded firmware:
Edit: (xda wont let me put the link, but its an unbranded firmware called I8190NXXAMD3_I8190NOXAAMD3_DBT)
wich is for the GT-I8190N version (not L), flashed it with odin, and now my phone is back to the way it was, i have my NFC settings back, got rid of ALL operator logos and bloatwares (now i only see the nice samsung animation on boot), and everything is working fine.
Except for 3G of course, im still stuck on EDGE.

Thanks alot for your answer. Now we know for sure it's based on hardware.

tys0n said:
Thanks alot for your answer. Now we know for sure it's based on hardware.
Click to expand...
Click to collapse
Sorry for bringing up this old thread..
Does anyone know if there is a way of replacing the phone's internal antenna/modem to adequate it to the 850mhz network? It'd be cheaper than buying a new phone..

i9305 Galaxy S3 LTE Signal Problem / fluctuates

Hi,
can You help me pls with ny LTE i9305 S3? I have problem with signal (antena OK, any sim any network), is just good outside but whan I go somwhere in house, is very bad or stop working network. I am not sure if can be some chip on motherboard problem, or if I solve this problem by some flash.
Thanks

Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc

juliancarney said:
Does it happen when you go inside in any place or just in your house? If it's just in your house then clearly it is just a problem of coverage on your area. I9305 international version supports bands 800, 1800 & 2600 for LTE where both 1800 and 2600 have bad coverage inside buildings. Check as another test if selecting 2g (pure GSM 900) you still have bad coverage. Can you try with a SIM of another carrier? This could also be the definitive test.
If it is a common problem (anywhere, any carrier...), then maybe you can solve it by flashing with Odin a different modem baseband (also called radio).
You have some basebands for download here:
http://sourceforge.net/projects/djb-tgp/files/CWM_Flashables/Modems/4.3 Modems/
I'm using the XXUENA2 with very good results, been used before others also with no major problems (XXUEMK1 and XXUFNI3 for example).
This is my "About device" screenshot where you can see the Baseband I'm using. Works fine in Europe as well as in Brasil:
https://mega.nz/#!Mh1RkbAY!k7l1vTQlxlas5S6OopO9054X-5P7yBpkJrXL_bv5-Fw
-jc
Click to expand...
Click to collapse
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?

Hey Paul...
1) About signal: how do you expect to get signal without SIM? Or maybe are you meaning signal for just the 112 emergency call?
2) Modem/baseband: I already provided the link in my original post, check it.
3) No need to downgrade. You will only flash the modem/baseband without touching any partition, neither the ROM nor the EFS. You can do that via Odin (check any Odin How-To document -search Google-) or via the recovery if you have TFRT or QWM (at recovery menu select flash zip file and choose the one for the modem -you need to copy the zip file previously to your sd card or internal memory).
Paul Koty said:
Hi, thanks for Your reply
my problem is in house, but anyway problem with signal is without any sim always.
So I have now 4.4.4 and pls can You show me where I can download good one modem for this Android for my LTE? I´ll try it
thanks so much
EDIT: I have one. Is South Africa 4.3, there is XXUENA2 Modem, so I´ll try it and let You know.
EDIT2: So I have problem, I can´t downgrade 4.4.4 to 4.3 because will EFS faulty, so You have some idea how I can choose repair my modem for signal repair?
Click to expand...
Click to collapse

Signal problem
Hello.Sir I have a s3 i9305 when i am on LTE auto network mode then i was unable to make any phone call it always show wrong mmi code or connection problem and then it lost signals after that i rebot it then it pick the network can you tell me how to fix