[Q] My Phone is Unlocked but it's using WCDMA only ? - Captivate Q&A, Help & Troubleshooting

Hello guys.
My Phone (AT&T Captivate S) is Unlocked but it's using WCDMA only !
When I select GSM, No signal at all unless I tried all bands !!
This happened after I upgraded to i9000 .
Any idea to solve this problem ??

Try other modems...
What carrier are you using?

studacris said:
Try other modems...
What carrier are you using?
Click to expand...
Click to collapse
AT&T . I heard you can get modem from them or a file, then it will work.
Could you please help ? because I couldn't contact AT&T ?

ATT won't help you since you modifed your phone. Here is a good list for I900 modems, I897 modems and CM7. There are 2 ways on flashing modems, either use CWM or ODIN. CWM just use the zip file that they come with and flash them. With ODIN decompres the zip file and use the modem.bin in the phone section.

prbassplayer said:
ATT won't help you since you modifed your phone. Here is a good list for I900 modems, I897 modems and CM7. There are 2 ways on flashing modems, either use CWM or ODIN. CWM just use the zip file that they come with and flash them. With ODIN decompres the zip file and use the modem.bin in the phone section.
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Click to collapse
Thank you so much. I'll do what you said .

Related

[Q] Help! re: Flashing a Modem (Bell user) will GPS work ?

Ok so here's the deal.
I flashed JVK 2.3 (Darky's Rom v10 rc6 DarkyCore Kernel 2.2) and so the baseband is JVK i'm assuming
I'm having issues regarding the 850 band.
Q: what's the best modem for Bell users ?
Q: am I able to JUST flash a modem ? if so, how ? (through ODIN or CWM?)
Q: Do I just put the modem file into the modem thing in odin and hit flash? can I flash a Froyo 2.2 (JL2) modem onto my Gingerbread (2.3) ROM ? If not, what's the best Modem to use ?
I'm also having issues regarding downloading MP3's -- they all fail like those mp3 finder apps. But I can preview. WTF?
also my GPS isn't working - does a modem fix this ?
Funkadelick said:
Ok so here's the deal.
I flashed JVK 2.3 (Darky's Rom v10 rc6 DarkyCore Kernel 2.2) and so the baseband is JVK i'm assuming
I'm having issues regarding the 850 band.
Q: what's the best modem for Bell users ?
Click to expand...
Click to collapse
I am running KC1 - I have tried JL2, JL2 with JM9 GPS fix, JK4 but KC1 is the best to date and gives me best GPS performance to date. If you use non "native Bell" modem ie new Gingerbread modems there are steps to take to ensure 850MHz still works. You will need to review this forum I think. I have not tried such modems to date. You can use Froyo or GingerBread modems - no issue.
Funkadelick said:
Q: am I able to JUST flash a modem ? if so, how ? (through ODIN or CWM?)
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Click to collapse
Yes, CWM is best. I have many modems in the SDCARD root, quick and easy to change.
Funkadelick said:
Q: Do I just put the modem file into the modem thing in odin and hit flash? can I flash a Froyo 2.2 (JL2) modem onto my Gingerbread (2.3) ROM ? If not, what's the best Modem to use ?
Click to expand...
Click to collapse
Use CWM - get the modem files from Perka's File stash - look for the 850MHz section
Funkadelick said:
I'm also having issues regarding downloading MP3's -- they all fail like those mp3 finder apps. But I can preview. WTF?
Click to expand...
Click to collapse
Sorry, not downloading MP3 at present time (I have heaps already)
Funkadelick said:
also my GPS isn't working - does a modem fix this ?
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Click to collapse
Se above. But you should search this forum under GPS. If GPS has never worked you may have to do some hardware work. ie the contact from the PCB to the GPS antenna is pretty crappy and you may have to disassemble the SGS, stretch the contact spring a bit then re-assemble.
Funkadelick said:
Ok so here's the deal.
Q: Do I just put the modem file into the modem thing in odin and hit flash? can I flash a Froyo 2.2 (JL2) modem onto my Gingerbread (2.3) ROM ? If not, what's the best Modem to use ?
Click to expand...
Click to collapse
If using Odin(Definitely easier to use CWM as Jim said) you put the file(make sure it is for odin and not CWM) into the "Phone" section. And if on Gingerbread you're probably using CWM3 so if flashing it via CWM make sure it's a CWM3 version of the modem zip

[Q] i9000m CWM flash KC1 or KG3 baseband/modem ?

I'm a dev and I've spent 2 hours reading and trying...
Can I flash KC1 or KG3 from ClockworkMod 4 or 5 ? I'm on Linux and I avoid ODIN if at all possible.
I flash back and forth between CM7 nightlies and various MIUI ROMs. I need my SIM to work for s/w testing, for data and voice.
This i9000m phone is pretty new, was a Virgin Mobile model (pretty much Bell) and I use a SIM from an MVNO of Bell. (President's Choice.) With the stock ROM this worked without unlocking.
I tried some ZIP files for these basebands, meant for CWM3. I also tried replacing the modem.bin in the latest CM7 nightly. Nothing I do makes Settings -> About show a baseband other than "I9000XXJVK".
When I do a search for networks, it eventually shows me: 302610, 30220 and "CAN Rogers Wireless Inc." and I have emergency service I believe.
At the dial keypad I can't make "*#1234#" or "*#0011#" do anything.
Thanks !
No thoughts ?
I managed to get KC1 and KG3 loaded fine when installed along with Darky ROM using heimdall.
But when I install CM nightly, it overwrites the modem.bin.
And when I then use heimdall to flash the KC1 or KG3, CM says "Baseband version Unknown".
Same when I flash a modified CM zip with a new updater.sh and a removed modem.bin over Darky.
EDIT: Solved. I guess I need CM7/MIUI specific modems from this thread: http://forum.xda-developers.com/showthread.php?t=1158783
You're right buddy, that's exactly what i was going to say after reading your post.
Sent from my GT-I9000
SiCRider said:
You're right buddy, that's exactly what i was going to say after reading your post.
Sent from my GT-I9000
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Well, thanks...
Now if I can just figure out how to enable the "SIM Toolkit" app...

Modem for CM9?

Please teach me about modems.
I'm on CM9 nightlies but my modem seems to be an old one from the Gingerbread days (XXJVK). Data reception is often poor so I'd like to try a newer modem.
How do I choose a newer/better modem? I'm thinking of just flashing a UK one from the latest official stock Gingerbread (http://forum.xda-developers.com/showthread.php?t=1804682) to see if its any better.
I've not been able to find clear information or instructions about which modems are compatible with CM9 or how to flash them.
How can I backup/restore my current modem? Nandroid backup, or is there a quicker way that just backs up the modem?
Thanks in advance to anyone who can help.
RowanDDR said:
How can I backup/restore my current modem? Nandroid backup, or is there a quicker way that just backs up the modem?
Thanks in advance to anyone who can help.
Click to expand...
Click to collapse
Just note down the details of your baseband and firmware in about phone, that will be good enough to get back to it, if ever you want it by flashing them again, by downloading them again. http://forum.xda-developers.com/showthread.php?t=1102881
Go here and download the modem for your location and flash it http://forum.xda-developers.com/showthread.php?t=1158783
xsenman said:
Just note down the details of your baseband and firmware in about phone, that will be good enough to get back to it, if ever you want it by flashing them again, by downloading them again. http://forum.xda-developers.com/showthread.php?t=1102881
Go here and download the modem for your location and flash it http://forum.xda-developers.com/showthread.php?t=1158783
Click to expand...
Click to collapse
Thanks for the advice but this raises further questions. Which of the modems in that thread is the newest/best, which is for "my region" (I am in London), and are they CM9 compatible (they all say CM7 in the filename).
Odin must be used to flash a modem? I thought it can be done from recovery?
RowanDDR said:
Thanks for the advice but this raises further questions. Which of the modems in that thread is the newest/best, which is for "my region" (I am in London), and are they CM9 compatible (they all say CM7 in the filename).
Odin must be used to flash a modem? I thought it can be done from recovery?
Click to expand...
Click to collapse
read the header, its good for CM 7 and CM 9, only you need to identify the modem by the last three alphabets, which can be same as the ROM/modem you are using or you can compare with the firmware list for Europe modems to select
these (CM7/CM 9 modems) are .zip files so you can just use update.zip from SD card but original gingerbread modems are in .tar format and has to be flashed with odin
OK, I'm still a bit unclear. How can I return to XXJVK after flasing? this one? radio-cm-7-GalaxyS-JVK-signed.zip
Three alphabet letters same as my rom/modem? Well my rom is CM9 nightly so no 3 alpha characters there. My modem is JVK but the JVK isnt a reference to my country, thats the XX bit? And XX 2 characters is not anywhere in these modem filenames. If I flash from JVK modem to JVK modem what have I achieved, nothing?
RowanDDR said:
OK, I'm still a bit unclear. How can I return to XXJVK after flasing? this one? radio-cm-7-GalaxyS-JVK-signed.zip
Three alphabet letters same as my rom/modem? Well my rom is CM9 nightly so no 3 alpha characters there. My modem is JVK but the JVK isnt a reference to my country, thats the XX bit? And XX 2 characters is not anywhere in these modem filenames. If I flash from JVK modem to JVK modem what have I achieved, nothing?
Click to expand...
Click to collapse
just PM Siky-dude mate, to find out what is the best modem for UK, since he is also in the UK

help me in changing modem in jb

i am now using jb rom.. i would like to know how to change the modem.. becoz i am having prob with 3g networks.. unable to connect back to 3g after selecting 2g.
please tell me where i get the modems (any thread here).
whether all modems (gb,ics) are comparitable with jb..
how to flash them. ?
Choose & download modem here
http://forum.xda-developers.com/showthread.php?t=1870460
Just flash the zip file in cwm (recovery). Same way flashing a custom rom
For me JVO, JVK works best, but u have 2 try different modems to see whats best for u. Its different for everyone. No need wiping anything you can flash endless times till u find the right modem. Theyre all compatible

Basebands

I know out there is a bunch of baseband to flash through Odin. What about make them flashable?. What for?, for example I flashed Enox and Benz roms that are not for my specific model (L) and my phone boot without a problem, but just get not network signal. So I was guessing that will work If I flash my baseband (lubama1) over the one that came with the rom. Will the rom work without a problem I think, cuz that is what I did in my Atrix 4g times.
Why flashable, just to do it on the way. If someone can help me making my stock baseband flashable I will appreciate it.
Thnx
I'm pretty sure those roms doesn't change your modem, but only system files.
Why it doesn't work is probably because the config is for i8190 and not i8190L modem.
Open the rom.zip and see if you find a modem.bin in there.. I think not.
Sir_gpm said:
I know out there is a bunch of baseband to flash through Odin. What about make them flashable?. What for?, for example I flashed Enox and Benz roms that are not for my specific model (L) and my phone boot without a problem, but just get not network signal. So I was guessing that will work If I flash my baseband (lubama1) over the one that came with the rom. Will the rom work without a problem I think, cuz that is what I did in my Atrix 4g times.
Why flashable, just to do it on the way. If someone can help me making my stock baseband flashable I will appreciate it.
Thnx
Click to expand...
Click to collapse
even if you flash your baseband i think it will not work. wrong rom to your variant
any way, if you want, attach your baseband to make it flashable via odin.

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