[Q] No signal and no APN - Captivate Q&A, Help & Troubleshooting

I have an AT&T captivate and when I install any rom after stock I have no signal and no apns available (unless I am on stock then I have great signal). It will let me manually enter an apn but it will not stick. I backed up my efs folder from KK4 and replaced it once I went to new rom. I have tried it from stock going to GB, ICS and JB with no luck at all. I can get any rom to load through CWM but no matter what I get no signal and have been reading and searching for 4 days now. Any help would be greatly appreciated! NJD316

NJD316 said:
I have an AT&T captivate and when I install any rom after stock I have no signal and no apns available (unless I am on stock then I have great signal). It will let me manually enter an apn but it will not stick. I backed up my efs folder from KK4 and replaced it once I went to new rom. I have tried it from stock going to GB, ICS and JB with no luck at all. I can get any rom to load through CWM but no matter what I get no signal and have been reading and searching for 4 days now. Any help would be greatly appreciated! NJD316
Click to expand...
Click to collapse
Do you have a modem? What does it say in baseband version (in about phone)? If not, that would be the first thing to look into (flash one).
Is your IMEI fine?

All is back to stock (using Odin) and modem works and imei is good. I can make calls and use Data and WiFi no problem and it picks up my MicroCell. It is when I upgrade to GB, add CWM and try to go to ICS or JB. I have tried CM7, CM9, CM10, and SlimBean 4.2.1 and 4.2.2 and any time I upgrade I lose APNs and it won’t let me add one.

NJD316 said:
All is back to stock (using Odin) and modem works and imei is good. I can make calls and use Data and WiFi no problem and it picks up my MicroCell. It is when I upgrade to GB, add CWM and try to go to ICS or JB. I have tried CM7, CM9, CM10, and SlimBean 4.2.1 and 4.2.2 and any time I upgrade I lose APNs and it won’t let me add one.
Click to expand...
Click to collapse
Because you need to flash a modem after flashing the ROM. Those ROMs don't flash a modem, therefor, after you wipe, you have no modem.

I have tried several modems (6 to be exact) and every time I flash the modem shows in the baseband but stillk no apns or signal, WiFi is fine though.

NJD316 said:
I have tried several modems (6 to be exact) and every time I flash the modem shows in the baseband but stillk no apns or signal, WiFi is fine though.
Click to expand...
Click to collapse
APNs don't just appear, they have to be manually entered and saved.

I know apns don't just appear (on most roms) and they have to be entered manually, in the first post I explained that part . I do appreciate your help on this and your patience and I have had my share of modding my cappy and my sgs2. Basically = I can bring it back to stock (Froyo) and it works fine, if I upgrade to GB or later (to include flashing modems) it shows in the baseband that the modem is there but I have no signal, no apns show and I can manually enter them but they don't stick after saving. I have copied the efs folder that contains the imei and replaced it as many threads have said and it still does not work. I have gone through the process of stock Froyo to JB 4 times with different roms and results are the same.

NJD316 said:
I know apns don't just appear (on most roms) and they have to be entered manually, in the first post I explained that part . I do appreciate your help on this and your patience and I have had my share of modding my cappy and my sgs2. Basically = I can bring it back to stock (Froyo) and it works fine, if I upgrade to GB or later (to include flashing modems) it shows in the baseband that the modem is there but I have no signal, no apns show and I can manually enter them but they don't stick after saving. I have copied the efs folder that contains the imei and replaced it as many threads have said and it still does not work. I have gone through the process of stock Froyo to JB 4 times with different roms and results are the same.
Click to expand...
Click to collapse
Umm, can you try flashing Odin KK4 with bootloaders and see if they stick? That being stock GB 2.3.5

Been through the KK4 process and that didn't work either to get to ICS or JB.

NJD316 said:
Been through the KK4 process and that didn't work either to get to ICS or JB.
Click to expand...
Click to collapse
KK4 is what you should be going back to stock with instead of Froyo, that way you don't flash Bootloaders over and over, pretty much removing the chance to brick your phone.
Once you have the GB bootloaders, to go back to stock, you should use KK4 without bootloaders. (As long as your signal and such is fine on stock GB).
Now, which modem did you try? On JB, you should be flashing the I9000 modems: http://soggycashew.weebly.com/cm7miui--ics-modems.html

I flashed the ugkg3 without any success. I will try the entire process again when I get home. Any particular modem you recommend before I try that one again? I am in Kentucky, USA and there are no points on the website map that is on the link. Thanks Bud.:good:

NJD316 said:
I flashed the ugkg3 without any success. I will try the entire process again when I get home. Any particular modem you recommend before I try that one again? I am in Kentucky, USA and there are no points on the website map that is on the link. Thanks Bud.:good:
Click to expand...
Click to collapse
I can't recommend modem, sadly. They act different on every device and in every area. I have great results with JK4 in the past but it's outdated now.

SO my plan is to start with KK4 (without bootloaders) bringing me to GB, get cwm loaded, flash a i900 modem, make sure signal is good and then I should be able to flash a JB rom from there?

NJD316 said:
SO my plan is to start with KK4 (without bootloaders) bringing me to GB, get cwm loaded, flash a i900 modem, make sure signal is good and then I should be able to flash a JB rom from there?
Click to expand...
Click to collapse
Almost.
If you're on Froyo, flash KK4 with bootloaders. From there, if you need to go back to stock, use KK4 without bootloaders.
Once on GB, make sure you have signal and all his good. Flash Corn kernel and flash the JB ROM you wanna try as per their full instructions.
Finally, try flashing some modems to see which one gives you the best results.

YOU ROCK! It was the corn kernel step. I went from Froyo to Slim Bean 4.2.2 in less than 30 minutes. Thanks Bud!!!!!

Help!
NJD316 said:
YOU ROCK! It was the corn kernel step. I went from Froyo to Slim Bean 4.2.2 in less than 30 minutes. Thanks Bud!!!!!
Click to expand...
Click to collapse
Hi, could you please describe in easier terms how to do it?
Yesterday I was able to upgrade it from 2.3.5 to 4.2.2 and I LOVED IT but got no signal no service at all... i had to take it back to 2.3.5 and today I will try to do it with another stable ROM instead of the nightly that I tried before.
Any tips for me? Thanks a loooot in advanced!

You got no signal and no service simply because you did not follow SlimBean installation instructions.

Related

[Q] I9000m Running GINGERBREAD???

Hi, the Gingerbread fever has started and everyone's bragging about it. I am on a i9000m and as some of you may have discovered this model is kind of cranky and does not flash everything like the i9000.
So could someone tell me if they have flashed their i9000m with a JVK successfully?
And if yes, have you tried reverting to stock?
Thanks!
And if you say yes...what steps did you follow to get to GB?
to get to froyo I meant...
I dont see a problem here, I have a i9000m and mine is not cranky. If my partitions get messed or something gowes wrong I usually just flash EZBASE on mine following his instructions, then I flash the JL2 found on Samfirmware without repartition checked to get back to original state.
http://forum.xda-developers.com/showthread.php?t=991792
I tried JVK but I seem to have lost the WCDMA 850 or WCDMA 1900 which ever one is GSM. I used odin and UGjl2 and put it in PDA and reflashed back to Froyo until I can get just the jl2 modem or the BMC CSC files. Don't know exactly which one I need to reenable the GSM.
Gingebread is awesome and for some reason the tv screen off animation is a must have.
I just flashed to JVK today using the firmware from samfirmware (european version) and it works fine, no issues here. Bell Galaxy S Vibrant.
Thanks Guys...So, when I flash GB with its bootloaders and then when I try to flash back to Froyo (Usually do it with JPC and then JL2) the bootloaders shouldn't be a problem???
Mauro87 said:
I just flashed to JVK today using the firmware from samfirmware (european version) and it works fine, no issues here. Bell Galaxy S Vibrant.
Click to expand...
Click to collapse
I forgot exactly what the menus say but,
can you go to "wireless and network" then mobile networks. Then there is a a place for settings that let's you pick gsm/wcdma or GSM or Wcdma.
Select GSM only and see if your phone goes to No Service.
Thanks
Yeah it goes to no service in GSM only mode, no calls or data.
Videonut said:
I tried JVK but I seem to have lost the WCDMA 850 or WCDMA 1900 which ever one is GSM. I used odin and UGjl2 and put it in PDA and reflashed back to Froyo until I can get just the jl2 modem or the BMC CSC files. Don't know exactly which one I need to reenable the GSM.
Gingebread is awesome and for some reason the tv screen off animation is a must have.
Click to expand...
Click to collapse
Try this;
http://forum.xda-developers.com/showthread.php?t=787472
droilfade said:
Thanks Guys...So, when I flash GB with its bootloaders and then when I try to flash back to Froyo (Usually do it with JPC and then JL2) the bootloaders shouldn't be a problem???
Click to expand...
Click to collapse
I would be nervous about changing the boot loader from UGJL2. This is where the I9000M internal SD corruption fixes were done from the reading I have done.
jim5055 said:
I would be nervous about changing the boot loader from UGJL2. This is where the I9000M internal SD corruption fixes were done from the reading I have done.
Click to expand...
Click to collapse
Then how do you install GB. I don't think installing without bootloaders is good too!!! I was thinking if I flash to GB and to get back to froyo if I use a three file ROM like JPC.... I will be fine, no?
Mauro87 said:
I just flashed to JVK today using the firmware from samfirmware (european version) and it works fine, no issues here. Bell Galaxy S Vibrant.
Click to expand...
Click to collapse
Have you tried reverting to stock froyo???
I reverted to stock Froyo then used odin and only installed the PDA file.
CF-Root and JVK screenoff/batt.
Looks like I have both wcdma 850 and wcdma 1900 now.
Videonut said:
I reverted to stock Froyo then used odin and only installed the PDA file.
CF-Root and JVK screenoff/batt.
Looks like I have both wcdma 850 and wcdma 1900 now.
Click to expand...
Click to collapse
So you are using jvk with the jl2 modem? Any incompatibility issues you've noticed so far? Thanks!
Sent from my GT-I9000M using XDA App
JJustin said:
So you are using jvk with the jl2 modem? Any incompatibility issues you've noticed so far? Thanks!
Click to expand...
Click to collapse
That's correct. So far no problems. The only strange thing was after the flash when rebooting it stopped at the recovery screen showing an error finding CSC information, can't remember exactly. I just selected reboot and all was good. I now have a KOR product code. If I was to flash again I think i'd flash the CSC file too.
I'd like to know if anyone has flashed all 3 files and has both wcdma 850/1900 working.
I flashed JVK the other day and so far so good. I first tried to install JVK without bootloaders but the phone would not boot after, just hung at the first Samsung screen. I flashed the bootloaders version (hesitantly since I am now on my 3rd phone), and it worked fine. Obviously I lost my 850mhz band, but got it back after flashing the JL2 modem. Knock on wood, but things are working great. I have since flashed a couple different kernel's. Used Clockwork Mod to get the CRT TV Off hack working.
I occassionaly run into a force close, but I found the same on the different versions of Froyo I have been running.
In case you are wondering. I flashed using Odin, no additional checkboxes were checked (no pit, no partition, no bootloader). After flashing I grabbed the kernel of choice and flashed it with same Odin settings. I did get error's moving from Speedmod to Ultimate Kernel. I ended up having to reflash the Ginger ROM to fix, then proceeded to install the Ultimate Kernel.
With respect to the bootloader issue for Bell devices. I do have concerns about flashing the new bootloaders, but am hoping that the steps taken to correct the Froyo JK4 debacle have been included in the new bootloader. Otherwise I may be in for another headache in a few weeks. I havent personally tried it, but going back to JL2 shouldnt be a problem. Might just have to check off the bootloader option in Odin to get back on the Bell JL2 bootloader, but not too sure.
Good luck.
Dawgplg said:
I flashed JVK the other day and so far so good. I first tried to install JVK without bootloaders but the phone would not boot after, just hung at the first Samsung screen. I flashed the bootloaders version (hesitantly since I am now on my 3rd phone), and it worked fine. Obviously I lost my 850mhz band, but got it back after flashing the JL2 modem. Knock on wood, but things are working great. I have since flashed a couple different kernel's. Used Clockwork Mod to get the CRT TV Off hack working.
I occassionaly run into a force close, but I found the same on the different versions of Froyo I have been running.
In case you are wondering. I flashed using Odin, no additional checkboxes were checked (no pit, no partition, no bootloader). After flashing I grabbed the kernel of choice and flashed it with same Odin settings. I did get error's moving from Speedmod to Ultimate Kernel. I ended up having to reflash the Ginger ROM to fix, then proceeded to install the Ultimate Kernel.
With respect to the bootloader issue for Bell devices. I do have concerns about flashing the new bootloaders, but am hoping that the steps taken to correct the Froyo JK4 debacle have been included in the new bootloader. Otherwise I may be in for another headache in a few weeks. I havent personally tried it, but going back to JL2 shouldnt be a problem. Might just have to check off the bootloader option in Odin to get back on the Bell JL2 bootloader, but not too sure.
Good luck.
Click to expand...
Click to collapse
Maybe you could try what is stated in this thread:
http://forum.xda-developers.com/showthread.php?t=997950
basicaly, you flash those modem:
Jl2 => JPD => (JQ1 was the ending there, but you should try to flash the modem from JVK)
By "tick off" you mean check it or no? Lol...
If you mean check it... I don't think its a good option. Rather why not just flash a three file ROM to get back!!
I'm running cm7 now and haven't tried going back to stock. I will give it a shot soon. The ROM is awesome but its the batt that bothers me!
Not sure if you were referring to my post but I did not tick off or check off any additional boxes when using odin. only the default boxes had a check. Repartition and Bootloaders were un-checked and I did not have to use a pit file.
In addition my modem gets 850mhz just by flashing back the JL2 modem file through Odin.
Btw, Darky RC3 ROM installed as expected. and by default ran the voodoo lagfix.
Phone is smoking fast....

How do I downgrade back to stock Froyo after upgrading to Overcome 4.1.0?

I have T-Mobile Galaxy Tab 7.
After using Overcome for a day, I think I prefer Froyo. Could anyone guide me as to how I can go back to Froyo 2.2? Also, in the process of upgrading to Overcome, I upgrade the tab to 2.3.6 gingerbread. Is it possible to just uninstall the Overcome and use gingerbread? Please guide me thanks.
yes, just follow overcome guide again to restock.
That is by using Odin to install the GB-Stock-Safe from overcome site.
With that you will get GB samsung stock, without anything overcome at all.
You will get the dialer, so in theory you can make phone call with the right modem.
Unless you really prefer Froyo stock from T-mobile that doesn't have dialer, you can get download the firmware and flash it. (if you can find your firmware version)
priyana said:
yes, just follow overcome guide again to restock.
That is by using Odin to install the GB-Stock-Safe from overcome site.
With that you will get GB samsung stock, without anything overcome at all.
You will get the dialer, so in theory you can make phone call with the right modem.
Unless you really prefer Froyo stock from T-mobile that doesn't have dialer, you can get download the firmware and flash it. (if you can find your firmware version)
Click to expand...
Click to collapse
So all I need to do is install GB-STock-Safe with odin and I'm back to gingerbread? If that's the case, I would like that, I like gingerbread. Also, after I installed overcome, I did get the dialer but when I installed my AT&T sim card, it wouldn't detect it at all. I then used Galaxy S unlock tool from the market to unlock. I was able to unlock it and then the Tab was able to recognize the AT&T sim but when I dialed a number, it would automatically hang up. How do I fix that? Is there something I need to install to get the phone working? thanks a lot!
have flashed a different modem before?
T-mobile has a different frequency. You may be able to flash AT&T modem or other modem via CWM recovery.
There is a modem thread in the dev section.
priyana said:
have flashed a different modem before?
T-mobile has a different frequency. You may be able to flash AT&T modem or other modem via CWM recovery.
There is a modem thread in the dev section.
Click to expand...
Click to collapse
Could you give me the exact directions please? I'm new to this. thanks
you have managed to flash overcome 4.1, you can't be that new.
First go to your setting, About, and note down your phone Baseband
that is actually your modem version.
Now, if you restock back to GB Safe stock, you will not be able to do what I said below, because this is based on CWM recovery, which is included in Overcome Kernel.
The good thing is, once the right modem gives you all the functions (call, sms, data) you can then restock to GB stock safe and the modem won't change.
Go to http://forum.xda-developers.com/showthread.php?t=1069727
and download a few of the modems. Maybe a JPZ, a KM2, an AT&T modem, and T-Mobile modem.
Put them in your sdcard like when you flash overcome rom.
reboot to recovery
choose to install from sd card
locate the modem zip file and install it.
reboot and try out your data, sms, and phone calls.
If no good, reboot again to recovery and try different modem.
It is a hit and miss for some people.
If you already restocked and has no CWM recovery, you can still use Odin to flash just the modem.
wow it's working! i downloaded JPZ modem and did installed from internal sd and now i can finally make phone calls!!1 thank you so much! btw, can I now go back to stock froyo or gingerbread and still keep the voice? also, if I were to just use odin to flash the modem on a stock foryo galaxy tab, i should be able to make phone calls right? again thank you so much!!!
yes, that is right. The modem should stick, if you downgrade to GB stock safe.
Having said that, if you downgrade to Froyo and the package contains a modem.bin, then it will get overwritten. Then you need Odin to flash the modem again.
What network are you in? As long as you are not in T-Mobile network, you should be fine. I myself own a T-Mobile galaxy tab, using JPZ modem in Australian Optus network. I can make calls and have 3G/HSDPA data connection.
I'm using it on AT&T... i don't have a data plan, but if I were to get a data plan, would it work with the JPZ model or do i need to use anothe rmodel? thank.s
Hard for me to say. I don't know much about AT&T
It seems like HSDPA in AT&T is 1900 MHz
I am pretty sure most networks are on 2100 MHz (Europe, Australia, Asia)
Can you get a data plan SIM and try it out, and try the AT&T modem in the modem thread as well?
priyana said:
Hard for me to say. I don't know much about AT&T
It seems like HSDPA in AT&T is 1900 MHz
I am pretty sure most networks are on 2100 MHz (Europe, Australia, Asia)
Can you get a data plan SIM and try it out, and try the AT&T modem in the modem thread as well?
Click to expand...
Click to collapse
I tried AT&T modem but I lose voice communication.
weird,
this external link
http://www.talkandroid.com/21900-sa...ers-bell-hacked-for-voice-calls/#.TzDI56fnitI
implies that modem_bell_i9000.zip lets you make voice call using euro rom, and has data as well.
Hey, I was trying to install ICS after downgrading back to gingerbread from overcome.
So, after get the CM9 and gapps from humberos website, I put them along with the overcome kernel in the root of internal sd and reboot in recovery however, after flashing the CM9 zip, I cannot see the overcome kernel anywhere. So i proceed without flashing that and after rebooting i get stuck at galaxy tab logo. can you help? thanks
You wasted quite a lot of effort.
You should go straight to ics from overcome.
try flash overcome kernel using odin (the tar version of the kernel)
Then boot to cwm and flash cm9 rom again followed by humberos cm9 kernel for P1000.
But if you have patience, wait a day or two. Humberos will have newer rom+kernel that fixed slow wifi and quite a bit.
Meanwhile you can flash stock safe again while waiting.
Sent from my GT-P1000 using XDA App

Cant connect to ATT (no calls, no data) and cant save new APNs after upgrading to JB

I upgraded last night to Jelly Bean using these instructions: http://forum.xda-developers.com/showthread.php?t=1775373&page=11 . The last ROM i had flashed was a gingerbread Apex ROM a long time ago, and I think it had i9000 bootloaders (I think this because an i9000 screen pops up first thing when i turn it on, before the devil kernel logo pops up). I ran in to some issues while upgrading so I used Heimdall 1 click without bootloaders to get me back to stock gingerbread and then when I flashed Jelly Bean and the Devil Kernel everything worked (camera, music, etc.) except it doesn't detect any wireless carrier, APNs aren't saved, it doesn't detect when I take my SIM card out, and it also shuts down randomly. I suspect the problem is with the i9000 bootloaders, but what I have read on this forum makes me think installing new bootloaders is somewhat dangerous so I wanted to get advice before I tried anything else. How should I try to fix this? And if I do need new bootloaders, what is the safest way?
Thanks
ahurley said:
I upgraded last night to Jelly Bean using these instructions: http://forum.xda-developers.com/showthread.php?t=1775373&page=11 . The last ROM i had flashed was a gingerbread Apex ROM a long time ago, and I think it had i9000 bootloaders (I think this because an i9000 screen pops up first thing when i turn it on, before the devil kernel logo pops up). I ran in to some issues while upgrading so I used Heimdall 1 click without bootloaders to get me back to stock gingerbread and then when I flashed Jelly Bean and the Devil Kernel everything worked (camera, music, etc.) except it doesn't detect any wireless carrier, APNs aren't saved, it doesn't detect when I take my SIM card out, and it also shuts down randomly. I suspect the problem is with the i9000 bootloaders, but what I have read on this forum makes me think installing new bootloaders is somewhat dangerous so I wanted to get advice before I tried anything else. How should I try to fix this? And if I do need new bootloaders, what is the safest way?
Thanks
Click to expand...
Click to collapse
I don't think it's the bootloaders..I've flashed a jb rom with i9000 boot loaders and I had sim card and data working.. try going back to stock GB, do the whole rooting process, then flash cm9 ics, after that flash JB
Sent from my SGH-I897 using xda premium
zzmomo73 said:
I don't think it's the bootloaders..I've flashed a jb rom with i9000 boot loaders and I had sim card and data working.. try going back to stock GB, do the whole rooting process, then flash cm9 ics, after that flash JB
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Will do as soon as I get home from work. Should I use the same Heimdall method?
While you are in Ginger Bread, you should back up your EFS Folder. I believe that your IMEI was changed in the flash process, and the network could not recognize your phone. In should a case, you could copy the backup of your EFS folder to your JB phone, and restore the IMEI.
kafepuya said:
While you are in Ginger Bread, you should back up your EFS Folder. I believe that your IMEI was changed in the flash process, and the network could not recognize your phone. In should a case, you could copy the backup of your EFS folder to your JB phone, and restore the IMEI.
Click to expand...
Click to collapse
I used titanium backup before I flashed, and also copied all of the contents of my internal and external sd cards to my computer before tinkering with things. So do I already have my EFS Folder? If so, how do I restore it? And if not, how do I back it up when I get back to GB?
For anyone else that might come across this problem, I solved it by flashing this modem, then flashing the kernel again
temporary fix to get data to work: toggle airplane mode off/on
fermata_ said:
temporary fix to get data to work: toggle airplane mode off/on
Click to expand...
Click to collapse
my wifi is not working! ive tried toggling airplane mode on and off but wont work!
Modem reflash worked for me: Thanks!
AHurley: - Thanks for linking to that file, the reflash fixed my issue as well!

[Q] Baseband lost after flashing slimbean ROM

Hello!
I do not understand what the problem is, I've had my SGS for 2 years, been flashing it regularly from GB to JB and never had any problems.
I decided to upgrade my slimbean rom because I was getting a IMEI error message even though everything was working fine.
Reading in the forums I understand that flashing back to an official samsung firmware would recover my original IMEI.
Which I did and saved /efs.
Then through CWM recovery I flash the latest slimbean 4.2.1.
Everything goes fine.
But when I boot up I don't get prompted to unlock my sim. So I check in my phone and have "unknown" under baseband.
I've tried flashing just the modem.bin --> still modem doesn't appear.
I've tried reverting to my older ROM --> still modem doesn't appear.
I know I have the correct ROM for my phone, but I cannot figure out why my modem is not being taken into account.
The phone works perfectly under GB official firmware btw.
Anyone has any ideas would be greatly appreciated.
Cheers
doc
dochyde said:
Hello!
I do not understand what the problem is, I've had my SGS for 2 years, been flashing it regularly from GB to JB and never had any problems.
I decided to upgrade my slimbean rom because I was getting a IMEI error message even though everything was working fine.
Reading in the forums I understand that flashing back to an official samsung firmware would recover my original IMEI.
Which I did and saved /efs.
Then through CWM recovery I flash the latest slimbean 4.2.1.
Everything goes fine.
But when I boot up I don't get prompted to unlock my sim. So I check in my phone and have "unknown" under baseband.
I've tried flashing just the modem.bin --> still modem doesn't appear.
I've tried reverting to my older ROM --> still modem doesn't appear.
I know I have the correct ROM for my phone, but I cannot figure out why my modem is not being taken into account.
The phone works perfectly under GB official firmware btw.
Anyone has any ideas would be greatly appreciated.
Cheers
doc
Click to expand...
Click to collapse
Did you restore the /efs folder backup? or is there content in /efs.
Yep I copy back the /efs and no change.
I checked the imei file and it's identical to the backup one.
Size and permissions are also identical, which makes me think the problem is not coming from there.
Today I flashed the Cyanogen nightly and my phone works.
I liked better the slimbean ROM as it is incredibly fast for our lighter hardwared beloved SGS.
Well I found a solution. Not very clean but at least I got Slimbean ROM back on my phone.
CM10 is just soooooooooo incredibly slow on SGS it wasn't functional. 60 seconds wait to go from 1 screen to another. Camera getting stuck on a picture and had to wait 1 to 2 minutes for image to refresh...basically unusable.
So anyways I flashed clean to official GB stock ROM.
Then flashed CM10 ROM.
And then on top of CM10 I flashed Slimbean ROM. With ofc all the necessary wipes everytime.
This time the baseband was recognised.
I don't know what the pb is, but apparently you cannot flash from a GB stock ROM directly to Slimbean.
Cheers all!

[Q] Downgrading Android Versions -- Verification

I have a SGS Captivate I have been using as a sports tracking device and as a music player for the past year. I now have a few questions before changing ROMs on it.
History >> Two years ago I soft bricked it while on CM9. Not being able to resurrect it at the time I purchased an SGS3 and set the Captivate aside for a while. I resurrected it using a KK4 Heimdall One-Click and immediately flashed it to CM10.1. Having been on CM10.1 for a number of months I upgraded the device to CM10.2. After doing so I noticed the bootloader was listed as unknown and the baseband was KG3. I have checked this in terminal emulator and using a "Samsung Info" app from the PlayStore. I've verified the KG3 modem is for the i9000. I checked in the updater-script of the CM10.2 I downloaded and installed and observed it being coded for captivate and for i897. So, I am not fearful that I downloaded the incorrect ROM.
I have known of the above discrepencies for months and have not been terribly concerned. I do not know if they could have something to do with the fact that I have not had a sim card in the phone since before I resurrected it. Even though I do not currently plan to use it as a phone I intend to have it in a condition to do so if needed. That, and I was interested in flashing a ROM I have seen recommended several times by @BWolf56, Gamerzrom Legend 4.0. The questions I have stem from the fact that I will be going from a ROM based on Android 4.3 to one based on 4.2.2.
To correct the bootloader and modem I intend to flash, again the KK4 stock ROM (Gingerbread). This will be with the Heimdall One-Click from the forums, Odin is not an option - I run Linux. Once installed I will verify bootloader and modem. Based on the Gamerzrom blog I will then install CM10.1 before installing their ROM. (This could be avoided if I were not going back to stock.) At each step I will wipe and format as indicated, I will probably wipe and format to excess.
[Q1] Is this the best approach to get to having the 4.2.2 based Gamerzrom installed from where I am?
[Q2] Should I not do this at all, the donwgrade, even to stock, could seriously damage my phone?
[Q1] Is there anyone who thinks I could safely shortcut the above by simply flashing the KK4 bootloader and modem?
(If I can still find a download on the forums.) This would eliminate going back to stock GB and then to CM10.1.
[Q2] Is there no reason to worry about the bootloader and modem? The discrepency is simply an artifact based on there being no sim card in the phone and I would be best off advancing directly to flashing Gamerzrom from CM10.2.1.
dawgdoc said:
I have a SGS Captivate I have been using as a sports tracking device and as a music player for the past year. I now have a few questions before changing ROMs on it.
History >> Two years ago I soft bricked it while on CM9. Not being able to resurrect it at the time I purchased an SGS3 and set the Captivate aside for a while. I resurrected it using a KK4 Heimdall One-Click and immediately flashed it to CM10.1. Having been on CM10.1 for a number of months I upgraded the device to CM10.2. After doing so I noticed the bootloader was listed as unknown and the baseband was KG3. I have checked this in terminal emulator and using a "Samsung Info" app from the PlayStore. I've verified the KG3 modem is for the i9000. I checked in the updater-script of the CM10.2 I downloaded and installed and observed it being coded for captivate and for i897. So, I am not fearful that I downloaded the incorrect ROM.
I have known of the above discrepencies for months and have not been terribly concerned. I do not know if they could have something to do with the fact that I have not had a sim card in the phone since before I resurrected it. Even though I do not currently plan to use it as a phone I intend to have it in a condition to do so if needed. That, and I was interested in flashing a ROM I have seen recommended several times by BWolf56, Gamerzrom Legend 4.0. The questions I have stem from the fact that I will be going from a ROM based on Android 4.3 to one based on 4.2.2.
To correct the bootloader and modem I intend to flash, again the KK4 stock ROM (Gingerbread). This will be with the Heimdall One-Click from the forums, Odin is not an option - I run Linux. Once installed I will verify bootloader and modem. Based on the Gamerzrom blog I will then install CM10.1 before installing their ROM. (This could be avoided if I were not going back to stock.) At each step I will wipe and format as indicated, I will probably wipe and format to excess.
[Q1] Is this the best approach to get to having the 4.2.2 based Gamerzrom installed from where I am?
[Q2] Should I not do this at all, the donwgrade, even to stock, could seriously damage my phone?
[Q1] Is there anyone who thinks I could safely shortcut the above by simply flashing the KK4 bootloader and modem?
(If I can still find a download on the forums.) This would eliminate going back to stock GB and then to CM10.1.
[Q2] Is there no reason to worry about the bootloader and modem? The discrepency is simply an artifact based on there being no sim card in the phone and I would be best off advancing directly to flashing Gamerzrom from CM10.2.1.
Click to expand...
Click to collapse
1: don't need to flash cm first but you do have to flash the ROM twice to repartition it then flash the gapps.
2: flashing stock should recover/fix your unknown bootloader issue but unless your imei is unknown, you shouldn't have any problem using as a phone if needed.
I do suggest flashing KK4 before going to GamerzROM to avoid any issues.
BWolf56 said:
1: don't need to flag cm first but you do have to flash the ROM twice to repartition it then flash the gapps.
2: flagging stock should recover/fix your unknown bootloader issue but unless your imei is unknown, you shouldn't have any problem using as a phone if needed.
I do suggest flashing KK4 before going to GamerzROM to avoid any issues.
Click to expand...
Click to collapse
The imei is still present at least according to "Samsung Info" and using getprop in terminal emulator.
Okay, flash stock KK4 rom, no need to flash CM10.1, but flash Gamerzrom 4.0 twice.
I was getting CM10.1 from Gamerzrom 3.0 installation instructions for those coming from GB. I was thinking going back to KK4 would reset the partition scheme to GB. I guess the double flash of GLE4.0 takes care of the repartitioning back to JB layout.
Thank you.
dawgdoc said:
The imei is still present at least according to "Samsung Info" and using getprop in terminal emulator.
Okay, flash stock KK4 rom, no need to flash CM10.1, but flash Gamerzrom 4.0 twice.
I was getting CM10.1 from Gamerzrom 3.0 installation instructions for those coming from GB. I was thinking going back to KK4 would reset the partition scheme to GB. I guess the double flash of GLE4.0 takes care of the repartitioning back to JB layout.
Thank you.
Click to expand...
Click to collapse
That's exactly it, whether you flash cm or gamerz twice, it will do the same thing and repartition. Just don't forget the gapps after.
BWolf56 said:
That's exactly it, whether you flash cm or gamerz twice, it will do the same thing and repartition. Just don't forget the gapps after.
Click to expand...
Click to collapse
Thanks, I wouldn't dare forget GAPPS.
In fact, I have already downloaded both GAPPS and the ROM -- that was about 6 hours ago. I probably will not flash until Monday. :{​
You know, I am a bit surprised at how regularly posts are made to the Captivate forum. More often than I would have expected.
dawgdoc said:
Thanks, I wouldn't dare forget GAPPS.
In fact, I have already downloaded both GAPPS and the ROM -- that was about 6 hours ago. I probably will not flash until Monday. :{​
You know, I am a bit surprised at how regularly posts are made to the Captivate forum. More often than I would have expected.
Click to expand...
Click to collapse
While it's an old device, it's really great and some of us keep supporting it
Mixed Results with increased understanding
Well I went through the process I outlined above, or tried to do so.
I downloaded a One-Click stock rom, android 2.3.5, from this thread. It is actually the same leaked stock rom I used two years ago. I flashed it twice per instructions to get the bootloader, doing so to correct my unknown bootloader issue. After this was installed I used a "Samsung Info" app to verify bootloader and modem. The modem was KK4, yet the bootloader was still unknown. I repeated the process twice more with the same results.
Rather than download a different stock GB rom I proceeded with the remainder of my plan. I flashed Gamerzrom Legend Edition 4.0 from here on the recommendation of @BWolf56. I wiped, formatted, and then flashed twice as he recommended. The ROM didn't boot, but not to worry I repeated the process. Still no boot. I next went ahead and flashed CM 10.1.3 and booted into it. The bootloader was still unknown and the modem was now listed as KG3, an i9000 modem, again. My guess is CM did this since this how it was listed before I went back to stock. I now went back to Gamerzrom and successfully flashed it. (Still showing bootloader unknown and modem as KG3.)
I am setting up the phone this evening. So far in addition to installing ROMs and adjusting settings I have verified wifi works. Later tonight I will be testing the GPS and bluetooth. With the "wrong" modem my results could be decremated, but I don't expect them to be. When I was previously on CM 10.1.3 and 10.2.1 and on the KG3 modem all worked. Bluetooth, wifi, and GPS worked that is, I didn't try calls because I wasn't using it as a phone and didn't have an appropriate sized sim to borrow.
If I need this device as a phone I will first try it as is with bootloader unknown and modem as KG3. If that doesn't work I will flash an i897 modem, probably the KK1 modem, and see how that works. If that doesn't do the trick I will try an earlier GB stock One-Click rom, either KK1 or KJ3.
dawgdoc said:
Well I went through the process I outlined above, or tried to do so.
I downloaded a One-Click stock rom, android 2.3.5, from this thread. It is actually the same leaked stock rom I used two years ago. I flashed it twice per instructions to get the bootloader, doing so to correct my unknown bootloader issue. After this was installed I used a "Samsung Info" app to verify bootloader and modem. The modem was KK4, yet the bootloader was still unknown. I repeated the process twice more with the same results.
Rather than download a different stock GB rom I proceeded with the remainder of my plan. I flashed Gamerzrom Legend Edition 4.0 from here on the recommendation of @BWolf56. I wiped, formatted, and then flashed twice as he recommended. The ROM didn't boot, but not to worry I repeated the process. Still no boot. I next went ahead and flashed CM 10.1.3 and booted into it. The bootloader was still unknown and the modem was now listed as KG3, an i9000 modem, again. My guess is CM did this since this how it was listed before I went back to stock. I now went back to Gamerzrom and successfully flashed it. (Still showing bootloader unknown and modem as KG3.)
I am setting up the phone this evening. So far in addition to installing ROMs and adjusting settings I have verified wifi works. Later tonight I will be testing the GPS and bluetooth. With the "wrong" modem my results could be decremated, but I don't expect them to be. When I was previously on CM 10.1.3 and 10.2.1 and on the KG3 modem all worked. Bluetooth, wifi, and GPS worked that is, I didn't try calls because I wasn't using it as a phone and didn't have an appropriate sized sim to borrow.
If I need this device as a phone I will first try it as is with bootloader unknown and modem as KG3. If that doesn't work I will flash an i897 modem, probably the KK1 modem, and see how that works. If that doesn't do the trick I will try an earlier GB stock One-Click rom, either KK1 or KJ3.
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Click to collapse
Modem doesn't affect BT so it should be fine. It's odd that Gamerz didn't boot but glad it turned out fine. Also, having a different modem won't change anything about the bootloaders but that being said, I highly doubt it would stop you from using it as a phone.
You're seeing I9000 modems cause the ROMs were often built off the international version of the Captivate. Both I897 and I9000 work well on the device and you can flash whichever one gives you the best results in terms of networking (which you don't seem to be using anyway).
BWolf56 said:
Modem doesn't affect BT so it should be fine. It's odd that Gamerz didn't boot but glad it turned out fine. Also, having a different modem won't change anything about the bootloaders but that being said, I highly doubt it would stop you from using it as a phone.
You're seeing I9000 modems cause the ROMs were often built off the international version of the Captivate. Both I897 and I9000 work well on the device and you can flash whichever one gives you the best results in terms of networking (which you don't seem to be using anyway).
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Click to collapse
True, the kernel controls BT and wifi. I'm not sure why I was mentioning BT w/ modem.
I think I didn't organize my thoughts too well in that last paragraph. Closer to what I meant was that if needed as a phone I would try it as is >> unknown bootloader and KG3 modem. If I had any troubles with it working I would try a different modem. This is where I was erroneously thinking that the i9000 modem may turn be a problem. If that didn't fix it then I would go with another stock ROM to give another go at fixing the bootloader issue. I actually think/hope it would work as it currently is. The phone has repeatedly booted, so at least the sbl (?) secondary boot loader partition is intact.
BTW, the GPS seems to be working well, even though I have a 10/08 build device. Bluetooth, on the other hand, is not pairing with my Linux laptop nor a cheap bluetooth speaker. The same held true when I was on CM 10.2.1 with the cappy. Both, the laptop and speaker, pair with my SGS3.
Could the reason the Gamerzrom didn't flash straight off is that I was coming from a stock TouchWiz 2.3.5 rom instead of from any JB rom? Thank you for helping.
dawgdoc said:
True, the kernel controls BT and wifi. I'm not sure why I was mentioning BT w/ modem.
I think I didn't organize my thoughts too well in that last paragraph. Closer to what I meant was that if needed as a phone I would try it as is >> unknown bootloader and KG3 modem. If I had any troubles with it working I would try a different modem. This is where I was erroneously thinking that the i9000 modem may turn be a problem. If that didn't fix it then I would go with another stock ROM to give another go at fixing the bootloader issue. I actually think/hope it would work as it currently is. The phone has repeatedly booted, so at least the sbl (?) secondary boot loader partition is intact.
BTW, the GPS seems to be working well, even though I have a 10/08 build device. Bluetooth, on the other hand, is not pairing with my Linux laptop nor a cheap bluetooth speaker. The same held true when I was on CM 10.2.1 with the cappy. Both, the laptop and speaker, pair with my SGS3.
Could the reason the Gamerzrom didn't flash straight off is that I was coming from a stock TouchWiz 2.3.5 rom instead of from any JB rom? Thank you for helping.
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Click to collapse
BT not working can be cause it wasn't updated in so long or kernel issue. Or could simply be that it doesn't work with your specific devices.
I flashed mine off stock KK4 (same one you flashed), tried to boot without flashing it twice, which of course didn't work but then went back in recovery, re-flashed and it booted just fine.

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