[Q]No data connection on captivate with custom roms? - Captivate Q&A, Help & Troubleshooting

I am using a samsung captivate running aokp build 31 semaphore kernel. I cannot seem to get data connection at all. I go into settings, more, mobile networks, and when I click network operators, it just searches for a network forever. I have tried several roms and still cannot get service on any of them.
Is there something I'm missing that isn't getting me any connection? If so, what can I do to fix this problem?

Do you have a valid apn set up?
Sent from my SGH-I897 using XDA

Have you tried changing modems?
Sent from my SGH-I897 using xda premium

laihafloyd said:
Do you have a valid apn set up?
Sent from my SGH-I897 using XDA
Click to expand...
Click to collapse
Yes I believe so.When i click on APN it says ATT, so I'm guessing thats one. I have never had this problem.

mrjay711 said:
Have you tried changing modems?
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Well I changed the kernel from glitch to semaphore to see if that would do anything but it still didn't work. I'm new to all of this so I don't know if kernel is the same thing as modem.

Kernel is different than the modem the modem is what controls the cell signal part of the phone there is a website that has a map and it has pins on it that tell you what modems work best in what areas you will have to Google it because I don't remember the website off hand and you have to be on a computer for the site to work right.
Sent from my SGH-I897 using xda premium

mrjay711 said:
Kernel is different than the modem the modem is what controls the cell signal part of the phone there is a website that has a map and it has pins on it that tell you what modems work best in what areas you will have to Google it because I don't remember the website off hand and you have to be on a computer for the site to work right.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
thanks i found the website. but if i flashed a different modem and my service still doesn't work what could be causing the problem then? And is ice cream sandwich a froyo or gingerbread rom? because i basically only use ice cream sandwich and i want to make sure i dont flash a froyo modem for a gingerbread rom.
Just flashed a modem from that map. thank you so much. I got my data back and at my house where i get no connection, i have full bars. Thanks so much. Now last thing, i can flash a rom over it and it will stay correct?

cameronandry14 said:
thanks i found the website. but if i flashed a different modem and my service still doesn't work what could be causing the problem then? And is ice cream sandwich a froyo or gingerbread rom? because i basically only use ice cream sandwich and i want to make sure i dont flash a froyo modem for a gingerbread rom.
Click to expand...
Click to collapse
ICS is basically Android 4.0 gingerbread is 2.3 and froyo is 2.2. You are gonna want a modem that has ics in the name of it I think the one I'm using is cm7-ics -jl3 or something along those lines.
Sent from my SGH-I897 using xda premium

mrjay711 said:
ICS is basically Android 4.0 gingerbread is 2.3 and froyo is 2.2. You are gonna want a modem that has ics in the name of it I think the one I'm using is cm7-ics -jl3 or something along those lines.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
yeah i got cm7-ics-UGKG3. Data works great. Will the modem affect the battery life as well, because i was getting terrible battery life with any rom, so if that affects battery life, then that could have been the reason it was so bad. I was just in a bad modem. And also, does it affect the performance such as smootness, or is that the kernel and roms job?
Also, when i flashed semaphore kernel and was using that. I tried to install a rom or anything, but it said there was an error and it wouldn't let me flash anything. Is that normal for a custom kernel to do that? this was the first time i tried a custom kernel normally i just use the one that comes with the rom. I had to restore one of my old roms because CWM wouldn't let me flash anything new.

cameronandry14 said:
yeah i got cm7-ics-UGKG3. Data works great. Will the modem affect the battery life as well, because i was getting terrible battery life with any rom, so if that affects battery life, then that could have been the reason it was so bad. I was just in a bad modem. And also, does it affect the performance such as smootness, or is that the kernel and roms job?
Click to expand...
Click to collapse
It will affect battery life but won't help with smoothness different kernels and roms help I over clock mine to 1300 mhz instead of stock 1000 that seems to help but the captivate period has bad battery life so I got the extended battery for 13 bucks and I don't even look at the battery any more.
Sent from my SGH-I897 using xda premium

mrjay711 said:
It will affect battery life but won't help with smoothness different kernels and roms help I over clock mine to 1300 mhz instead of stock 1000 that seems to help but the captivate period has bad battery life so I got the extended battery for 13 bucks and I don't even look at the battery any more.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Okay thanks. And if you flash a rom over a custom kernel such as AOKP with icy glitch kernel over semaphore will the icy glitch kernel replace the semaphore kernel then you would have to reflash semaphore or will semaphore stay?

cameronandry14 said:
Okay thanks. And if you flash a rom over a custom kernel such as AOKP with icy glitch kernel over semaphore will the icy glitch kernel replace the semaphore kernel then you would have to reflash semaphore or will semaphore stay?
Click to expand...
Click to collapse
It will replace it but I seem to have better luck with icy glitch and I don't think you can over clock with semaphore.
Sent from my SGH-I897 using xda premium

mrjay711 said:
It will replace it but I seem to have better luck with icy glitch and I don't think you can over clock with semaphore.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Okay thanks a lot for your help.

Related

[Q] SGS Vibrant I9000M upgrade to Gingerbread 2.3.4!

Hi,
Is it possible to upgrade with the recently leaked European Gingerbread 2.3.4 image to the Bell's Vibrant I9000M?
I'm currently running Froyo 2.2, firmware UGKC1. Have downloaded the official 2.3.4 from samfirmware.com and already rooted and unlocked my phone.
gurwindersng said:
Hi,
Is it possible to upgrade with the recently leaked European Gingerbread 2.3.4 image to the Bell's Vibrant I9000M?
I'm currently running Froyo 2.2, firmware UGKC1. Have downloaded the official 2.3.4 from samfirmware.com and already rooted and unlocked my phone.
Click to expand...
Click to collapse
It is... i would suggest going this route instead of through the one from samfirmware.
I use darky's ROM. I upgraded to 10.1 (it is 2.3.3), then recently upgraded via CWM to Dark Core 2.7.3 (which has the 2.3.4 GB firmware). Beware that the core is beta at this time, and so far in 2 days i haven't had any real issues on my phone.
www.darkyrom.com, then check the forums.
We are quite in Sync. Co-incidentally I upgraded to Darky's ROM(10.1) about an hour back. I'll give a try to the Beta now. Pls do share your experience with the beta overtime.
Thanx
gurwindersng said:
We are quite in Sync. Co-incidentally I upgraded to Darky's ROM(10.1) about an hour back. I'll give a try to the Beta now. Pls do share your experience with the beta ove.rtime.
Thanx
Click to expand...
Click to collapse
So far so good... other than my battery. Although i do have a momax 2700mah battery, it only lasted 30ish hours before it died... including using superpower to manage night time usage. I should be getting more than that with this battery (and i have done the reconditioning with the battery since i got it).
Even with 10.1 i got a day and a half or so... but the half day doesn't work for me as i need it for a full day.
Now that i've done one round of recondition on my battery, i'm anxious to see how good the battery will last now.
10.1 works with the JVP kernel fine (at least some of the features for it). I had to upgrade gtalk to the video talk version myself though (although i'm sure it'll be included in the next darkyrom).
Let me know what you think of it...
Hey guys i am also on the I9000M through bell and would love to get the gingerbread on here but the last time i tried i couldnt connect to my 3g for wireless and i couldnt call out or recieve calls please tell me the guide you used because man that gingerbread was fast and smooth.
Right now heres what my phone status is
Model number GT I9000M
Firmware version 2.2
Baseband version I9000UGKC1
Kernel version 2.6.32.9
[email protected] #4
Build number FROYO UGKC1
Thanks in advance for any help
ps my phone is already rooted
you can get gingerbread, but you need to take the extra step of flashing the kc1 modem, or do the 850 band tweak on a euro modem
Sent from my GT-I9000 using XDA App
And is there a tutorial for that?
And thanks.
Sent from my GT-I9000M using XDA App
bambam1978 said:
And is there a tutorial for that?
And thanks.
Sent from my GT-I9000M using XDA App
Click to expand...
Click to collapse
Just flash kc1 in odin or search for 850 enabled modems.
Swyped from a galaxy far far away.
Can i fladh it with cwm and if i have to use odin which slot does it go in?
Thanks for the response.
Sent from my GT-I9000M using XDA App
bambam1978 said:
Can i fladh it with cwm and if i have to use odin which slot does it go in?
Thanks for the response.
Sent from my GT-I9000M using XDA App
Click to expand...
Click to collapse
Yes perka has a cwm flashable kc1 modem. If you use odin it goes in the phone column.
Swyped from a galaxy far far away.
YEEESSSSSSS I finally got exactly what I wanted! Thank you everyone!!!!
Sent from my GT-I9000 using XDA App
I want to upgrade my Samsung Galaxy s Vibrant BELL to Gingerbread 2.3.4
Can some one help me,
I want to upgrade my Samsung Galaxy s Vibrant BELL to Gingerbread 2.3.4
I need instruction and right tools to download for upgrading
I need instruction and right tools to root my phone
I need instruction and right tools to flash my phone.
joelhon said:
Just flash kc1 in odin or search for 850 enabled modems.
Swyped from a galaxy far far away.
Click to expand...
Click to collapse
Do you do the KC1 modem AFTER the GB firmware flash or during?...
ccrows said:
Do you do the KC1 modem AFTER the GB firmware flash or during?...
Click to expand...
Click to collapse
I could say after if you using Odin.
But before starting ask yourself what do you really want....
Just the 2.3.4 stock or a custom rom (like Darky's), rooted?, Aply a new theme?
ENO_qc said:
I could say after if you using Odin.
But before starting ask yourself what do you really want....
Just the 2.3.4 stock or a custom rom (like Darky's), rooted?, Aply a new theme?
Click to expand...
Click to collapse
So far just the stock. I'm growing impatient waiting around for Bell...
Sent from my MB860 using XDA Premium App
Actually I just want 2.3.4 with BLN and I would be happy...
Sent from my MB860 using XDA Premium App
ccrows said:
Do you do the KC1 modem AFTER the GB firmware flash or during?...
Click to expand...
Click to collapse
Anyone?...
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ccrows said:
Anyone?...
Sent from my MB860 using XDA Premium App
Click to expand...
Click to collapse
I answered you two post ago.....
Sent from my GT-I9000 using Tapatalk

[ROM] [PORT] (12/29/11) Juwe's Smart Edition v6.0 JVT *FIXED*

Links are dead.
Rom is dead.
Pretty sure all of you moved away from the vibrant.
thanks for the port i cant wait to try it
Super nice
Sent from my GT-I9000 using Tapatalk
This rom is amazing!
One major bug though : phone soft reboots if wifi is turned on and you turn off the screen. Tried changing the wifi sleep policy to never but it still rebooted.
Other bug: GPS still doesn't work for me even after renaming angrygps.APk to angrygps.Bak
I appreciate your effort porting the rom im going to try reflashing to see if that fixes it!
and wow youre 13? great job thats impressive! =]
P.S. setting screen density to 182 looks incredible!
speedysilwady said:
This rom is amazing!
One major bug though : phone soft reboots if wifi is turned on and you turn off the screen. Tried changing the wifi sleep policy to never but it still rebooted.
Click to expand...
Click to collapse
hmmm......I cant seem to reproduce what you're saying.
Remember: if you are having problems, did you
1.wipe cache?
2.wipe dalvik?
3.wipe data?
About Phone still says I9000XXJVP instead of JVQ
philliple97 said:
hmmm......I cant seem to reproduce what you're saying.
Remember: if you are having problems, did you
1.wipe cache?
2.wipe dalvik?
3.wipe data?
Click to expand...
Click to collapse
maybe its a bad flash cuz now its randomly soft rebooting even with wifi off.
I was on Bi-Winning with voodoo enabled
ODINd simply honey with repartition checked to cancel out the voodoo.
wiped all three of those
flashed this rom
titanium backup for user apps only
ill wipe and reflash again cuz this rom is just too nice!
EDIT: wiped and reflashed still the same thing, maybe its my phone...ill try a different rom and see what happens then flash back to this one and see where the issue lies
sumchamp said:
About Phone still says I9000XXJVP instead of JVQ
Click to expand...
Click to collapse
true...weird...
sumchamp said:
About Phone still says I9000XXJVP instead of JVQ
Click to expand...
Click to collapse
The kernel is JVP. The rom itself is JVQ. Its like using a KA6 kernel on a kb1 rom.
Is this rom better then the revolution rom, in speed and stability? I heard that jvq is a huge improvement to jvp, but its still using the jvp kernel.
Sent from my SGH-T959 using XDA Premium App
hitman818 said:
Is this rom better then the revolution rom, in speed and stability? I heard that jvq is a huge improvement to jvp, but its still using the jvp kernel.
Sent from my SGH-T959 using XDA Premium App
Click to expand...
Click to collapse
I never flashed Revolution but on my phone is much better then Simply Honey and Asgard.
Hmmm...... I gonna try and see if flashing full JVQ through odin without booloaders then flashing this after would fix some problems.
hitman818 said:
Is this rom better then the revolution rom, in speed and stability? I heard that jvq is a huge improvement to jvp, but its still using the jvp kernel.
Sent from my SGH-T959 using XDA Premium App
Click to expand...
Click to collapse
I wasn't able to find a JVQ kernel for the vibrant so I used a JVP kernel
The browser seems very laggy. Every website ot doesnt respond until take my finger off the phone. I try zooming and nothing happens until I dont touch. The same with the scrolling to.
Sent from my GT-I9000 using XDA Premium App
hitman818 said:
The browser seems very laggy. Every website ot doesnt respond until take my finger off the phone. I try zooming and nothing happens until I dont touch. The same with the scrolling to.
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
i have the same problem with the default browser but everything works fine after i installed Dolphin from market
hitman818 said:
The browser seems very laggy. Every website ot doesnt respond until take my finger off the phone. I try zooming and nothing happens until I dont touch. The same with the scrolling to.
Sent from my GT-I9000 using XDA Premium App
Click to expand...
Click to collapse
Its been reported that deodexed JVQ browser is broken. Just install another browser
Sent from my GT-I9000 using XDA App
Is the tw4 link in the original post compatible with the vibrant edition of this rom?
Sent from my GT-I9000 using XDA App
rchau89 said:
Is the tw4 link in the original post compatible with the vibrant edition of this rom?
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
It should be compatible. Both are based off of JVQ so I don't see why not.
Sent from my GT-I9000 using XDA App
Flashed this on top of another 2.3.4 rom without wiping andit's running great on my phone... hope this does not have the phone call reboot bug anymore
THANK you for porting!
cezzarmicu said:
Flashed this on top of another 2.3.4 rom without wiping andit's running great on my phone... hope this does not have the phone call reboot bug anymore
THANK you for porting!
Click to expand...
Click to collapse
Your welcome! Hit the thanks button if you haven't already
Sent from my GT-I9000 using XDA App

I897 ROMs problem

With all the I897 roms im having a really annoying problem.
The phone powers off in the night, or after long periods of the screen powered off.
I can't even put an alarm because the phone is off after I wake up...
Im sure its not an app problem because it even happens on stock KJ3, and also not a problem of my.phone, because it doesn't happen in i9000 roms, or CM7.
Anyone else having this problem?
Sent from my SAMSUNG-SGH-I897 using XDA App
It is a hardware problem
Sent from my SAMSUNG-SGH-I897 using xda premium
leezrd said:
It is a hardware problem
Sent from my SAMSUNG-SGH-I897 using xda premium
Click to expand...
Click to collapse
...on the post it says i tried i9000 roms and CM7 and it doesn't happen on those
Sent from my SAMSUNG-SGH-I897 using XDA App
This happened to me when I was using SetCPU. If you have that or any other CPU governing app installed, try removing it and see if it helps.
krt41 said:
This happened to me when I was using SetCPU. If you have that or any other CPU governing app installed, try removing it and see if it helps.
Click to expand...
Click to collapse
Again...it says on the post that it happens in stock ROMS..stock roms don't have that
Sent from my SAMSUNG-SGH-I897 using XDA App
nightshack0 said:
Again...it says on the post that it happens in stock ROMS..stock roms don't have that
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
He could be using Tegrak wich works regardless on what you are running.
prbassplayer said:
He could be using Tegrak wich works regardless on what you are running.
Click to expand...
Click to collapse
Who? me?
I don't use any cpu app.
Sent from my SAMSUNG-SGH-I897 using XDA App
Do u have the i897 Gingerbread Bootloaders installed or i9000 ??
4-2ndtwin said:
Do u have the i897 Gingerbread Bootloaders installed or i9000 ??
Click to expand...
Click to collapse
i897 GB Bootloaders, more specifically: OneClickI897UCKF1-bootloaders
I have had 2 or 3 sleep of deaths since running the KJ3 leak. ?? Maybe just a bug in the firmware, because I usually stay pretty close to stock, except for boog's kernel and dev launchers. Don't use widgets that much, etc.
4-2ndtwin said:
I have had 2 or 3 sleep of deaths since running the KJ3 leak. ?? Maybe just a bug in the firmware, because I usually stay pretty close to stock, except for boog's kernel and dev launchers. Don't use widgets that much, etc.
Click to expand...
Click to collapse
It happens to me EVERY night, and it happened also on Pinnacle (KH3 ROM)
Yeah that's not right... ??? I don't know what to think about that, especially since it doesn't happen on i9000, etc.
4-2ndtwin said:
Yeah that's not right... ??? I don't know what to think about that, especially since it doesn't happen on i9000, etc.
Click to expand...
Click to collapse
Yeah I thought that it was probably my device but then I flashed i9000, CM7, MIUI, etc, and tested them all for a few days and none had the same problem.
I would use any of those but: MIUI and CM7 have bad battery life, and i9000 ROMs have that annoying charge bug. i897 have great battery life but it's really annoying that I can't use an alarm.

[Q] Semaphore Kernel

I recently instaled CM9 4.0.4 on my i9000 and the battery life sucks. I want to flash Semaphore kernel, but i need some advices ..like what version should i flash etc.
Can someone help me ?
EDIT: I tried to flash 2.7.4 version + .pit file but after that i get boot loop. I've flashed again 2.3.3 and then CM9 4.0.4 ..
Any ideas ?
xViBeR said:
I recently instaled CM9 4.0.4 on my i9000 and the battery life sucks. I want to flash Semaphore kernel, but i need some advices ..like what version should i flash etc.
Can someone help me ?
EDIT: I tried to flash 2.7.4 version + .pit file but after that i get boot loop. I've flashed again 2.3.3 and then CM9 4.0.4 ..
Any ideas ?
Click to expand...
Click to collapse
Flash a Semaphore kernel designed for ics. See http://www.semaphore.gr/homepage/semaphore-ics which also has links to xda-developers.
Oct-Al said:
Flash a Semaphore kernel designed for ics. See http://www.semaphore.gr/homepage/semaphore-ics which also has links to xda-developers.
Click to expand...
Click to collapse
I downloaded Semaphore_ICS_1.3.0. That's all i need, right ?
Just choose this file on PDA and flash ?
EDIT: I already did that and worked.
Only 1 thing: after flashing, i had to push the power button to start ... didn't had to reboot after flash ?
xViBeR said:
I downloaded Semaphore_ICS_1.3.0. That's all i need, right ?
Just choose this file on PDA and flash ?
EDIT: I already did that and worked.
Only 1 thing: after flashing, i had to push the power button to start ... didn't had to reboot after flash ?
Click to expand...
Click to collapse
Semaphore 1.3.0 is the one you need. You can flash it through Clockworkmod recovery, its the easiest way. Don't forget to wipe cache and dalvyk cache before flashing a new kernel. Besides semaphore you could also try devils kernel 1.0.3. It is more performance oriented. Flash the one you like. The only thing I don't like about semaphore 1.3.0 is that wifi tethering doesn't work.
Reboot after flashing is crucial, but if you have the new semaphore configuration app, you did it right! Just reboot one more time to be sure everything works alright.
Sent from my GT-I9000 using xda app-developers app
Besides the very low battery life, no problems ...
xViBeR said:
Besides the very low battery life, no problems ...
Click to expand...
Click to collapse
My only problem was the lack of usb tethering...had no probs with battery. U sure u have the right governor and stuff?
Sent from my GT-I9000 using xda app-developers app
I installed correctly. Anyway, i'm back on CM7. good battery, not laggy.. it's pretty nice.
Sent from my GT-I9000 using xda premium
xViBeR said:
I installed correctly. Anyway, i'm back on CM7. good battery, not laggy.. it's pretty nice.
Sent from my GT-I9000 using xda premium
Click to expand...
Click to collapse
Knowing I am being offtopic: Whats your battery like on cm7?
Cause with cm9 and semaphore you shouldn't have had a huge drain...
Sent from my GT-I9000 using xda app-developers app
On CM7, the battery life is good (1,2 days). On CM9 it sucks... i had to recharge after 15-16 hours max,everytime.
Sent from my GT-I9000 using xda premium
have you used the cf-root kernel?
I used semaphore 1.3.0 kernel.
Sent from my GT-I9000 using xda premium

regarding bandwidth

hi all......I flashed my stock captivate to helly bean and my signal is dropping constantly and since I stay in India ....is there any way to get proper signals ?......please help me out ....if I need to change modem please recommend me one ......I was on vibrant before and used kb5 modem which had never run into any sort of problem ........now I'm on i9000xxjvt now ...thanks for helping
Happened to me too.
I initially flashed KG3, but right now I'm using the one that comes with LANIGHT 8.0 (totally recommend that rom btw) it's KC1 I think it works a bit better (might be just my impression).
Good luck!!
Sent from my SGH-I897 using xda app-developers app
JoeCastellon said:
Happened to me too.
I initially flashed KG3, but right now I'm using the one that comes with LANIGHT 8.0 (totally recommend that rom btw) it's KC1 I think it works a bit better (might be just my impression).
Good luck!!
Sent from my SGH-I897 using xda app-developers app
Click to expand...
Click to collapse
I flashed 3 different modems and now I'm getting good signals but .......when I'm calling some one there are saying my voice is not at all clear .....this happens when someone calls to me also but I can hear properly .......I initially taught rom problem I updated to hellybeans latest one and same problem .......its killing me now I'm on my gingerbread stock kk4 modem .......should I Odin back to stock or flash another rom?
If your rom is jellybean, ics, cm, miui, or similar then u need to use i9000 modems for those. See this thread... http://forum.xda-developers.com/showthread.php?p=16843698
These modems specifically... http://soggycashew.weebly.com/cm7miui--ics-modems.html
Sent from my SGH-I897 using xda premium
4-2ndtwin said:
If your rom is jellybean, ics, cm, miui, or similar then u need to use i9000 modems for those. See this thread... http://forum.xda-developers.com/showthread.php?p=16843698
These modems specifically... http://soggycashew.weebly.com/cm7miui--ics-modems.html
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
omg tried 6 of them one Is working thanks dude ......
had the same problems.
somehow after several flashes my modem starts working on 1800 MHz band only.
flashed kk4 which enabled 900 MHz band but have me voice glitches...
then I flashed ugk3 modem and finally both 900 and 1800 MHz bands are working now with nice voice quality.
also i do recommend LaNight ROM too
Sent from my SGH-I897 using xda app-developers app

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