[Q] Just bought a captivate, No Signal is displayed and baseband version is "unknown"
Please, I need your help, I just bought a Captivate for my GF, we live in Honduras, Central America and the phone was supposedly sent unlocked, she inserted the sim card and the phone did not asked for any code, but, it has no signal, it is currently displaying "no Service", and when she goes to look at her baseband version, It displays "unknown"!
It has a crappy ICS rom, since Im an Nexus one owner I dont know a thing about this phone version!
Can you PLEASE! help me?
Can I just flash a CM nightlie over this ****ty ICS rom?
Do I have to upgrade or downgrade anything else?
Please, any help is welcome!
I assume you probably have, but are the APN settings correct?
You can probably flash a CM7 nightly over it. Worst case, it doesn't work and you have to flash back to stock first and try again.
It sounds like you don't have a working modem. If flashing CM7 doesn't fix it, flash a CM7-compatible modem and see if that fixes it.
Sent from my SGH-I897 using xda premium
apbthe3 said:
You can probably flash a CM7 nightly over it. Worst case, it doesn't work and you have to flash back to stock first and try again.
It sounds like you don't have a working modem. If flashing CM7 doesn't fix it, flash a CM7-compatible modem and see if that fixes it.
Sent from my SGH-I897 using xda premium
Click to expand...
Click to collapse
Lolz good advice...just in the wrong order...
I would flash the modem first....cause it is the least invasive (doesn't wipe anything) and most likely will work.
Roms contain modems, so if fishing as ROM didn't fix it fishing a modem after that is just spinning your wheels.
BUT, since op doesn't even like the ROM...just flash to kk4 stock.
I would also make door that the phone is actually unlocked...but aosp doesn't have the same dialer codes to just dial and check, and i don't know those.
studacris said:
Lolz good advice...just in the wrong order...
I would flash the modem first....cause it is the least invasive (doesn't wipe anything) and most likely will work.
Roms contain modems, so if fishing as ROM didn't fix it fishing a modem after that is just spinning your wheels.
BUT, since op doesn't even like the ROM...just flash to kk4 stock.
I would also make door that the phone is actually unlocked...but aosp doesn't have the same dialer codes to just dial and check, and i don't know those.
Click to expand...
Click to collapse
I agree that it is less invasive, but he already said he wanted to go to CM7 so I figured he could skip a step if the flash actually worked. He bought the phone this way so who knows what the previous owner did to it. Both ways should fix his issue though (unless his phone is locked, as you pointed out).
If you flash to the most recent nightly or a kang, the Samsung dialer codes work to check your lock status.
Sent from my SGH-I897 using xda premium
So, thank you guys for helping me, heres what I did:
A friend told me that since I had ICS on it, I had to flash a compatible modem on it, I flashed I9000BVJJPD which is used on cm9.
When it turned on, It asked for an unlock pin, I tried to generate it with the SGSunlock app but didnt worked, so I downgrade it to cm7 (2.3.7) and tried again but with no success...
Tomorrow morning Ill take it to an unlock shop so it can be unlocked (hopefully).
Does the modem that I flashed is the correct one for a network that uses 850 bands?
I heard that some captatives erased the imei causing the "unknown baseband" issue, I dialed *#06# and it retrieved the imei code so, it isnt ****ed right?
any help is welcome, Ill let you guys know how it goes.
thanks!
donchele said:
Does the modem that I flashed is the correct one for a network that uses 850 bands?
Click to expand...
Click to collapse
Yes, JPD should support 850.
apbthe3 said:
Yes, JPD should support 850.
Click to expand...
Click to collapse
Up to you, which is the best modem out there?
No such thing..every phone acts differently, not to mention the signal at your location is a huge variable we can't factor in.
studacris said:
No such thing..every phone acts differently, not to mention the signal at your location is a huge variable we can't factor in.
Click to expand...
Click to collapse
I know, but, for example, developers say that the lastest is the best, but, you only can say if you test them...
But, have you test some of them? Which gave you the best result?
I always include jk4 in my roms as a good standard.
donchele said:
I know, but, for example, developers say that the lastest is the best, but, you only can say if you test them...
But, have you test some of them? Which gave you the best result?
Click to expand...
Click to collapse
I understand your dilemma. You look at a list of 50 modems and go, "Where do I even start?"
Personally, I have tried lots of different modems, old and new, and I always come back to KP1. I think it's worth adding to your list of modems to try out. I would also try JJJV5 and KG3.
donchele said:
So, thank you guys for helping me, heres what I did:
A friend told me that since I had ICS on it, I had to flash a compatible modem on it, I flashed I9000BVJJPD which is used on cm9.
When it turned on, It asked for an unlock pin, I tried to generate it with the SGSunlock app but didnt worked, so I downgrade it to cm7 (2.3.7) and tried again but with no success...
Tomorrow morning Ill take it to an unlock shop so it can be unlocked (hopefully).
Does the modem that I flashed is the correct one for a network that uses 850 bands?
I heard that some captatives erased the imei causing the "unknown baseband" issue, I dialed *#06# and it retrieved the imei code so, it isnt ****ed right?
any help is welcome, Ill let you guys know how it goes.
thanks!
Click to expand...
Click to collapse
If the imei is still present it's good. Did you check the imei displayed is the same on the sticker under the battery?
Did you try the SGS Unlocker website with the nv_data.bin ? http://www.communityhosting.net/sgsunlock/
studacris said:
I always include jk4 in my roms as a good standard.
Click to expand...
Click to collapse
apbthe3 said:
and I always come back to KP1. I think it's worth adding to your list of modems to try out. I would also try JJJV5 and KG3.
Click to expand...
Click to collapse
Thanks, you guys rock, Ill the 3 that you mentioned here and let you know which one is my best...
Ill Compare Battery life, Reception and data...
Related
Hi, I bought a Cappy in december, I rooted, unlocked it (I'm not in the US) and installed Cognition 2.3b8 first, then moved to 3.X, everything was perfect, but yesterday I started with dropdowns in data service then the whole service, I have signal (changing to out-of-service), but I can't make/receive calls, send messages or get data connection, today I flash the phone back to stock and even in stock I have the same problems, also I already try different modems without luck.
Is this a hardware issue?
Thanks!
Give this a try
http://forum.xda-developers.com/showthread.php?t=884364
Thanks...but I know how to install a custom ROM, I already tried Serendipity, Cognition and changing Kernel to SpeedMod and Firebird and different radios (ZNKP1, JK4, JL2, JL1, JL3) and no luck
Have you confirmed that your phone is still unlocked after flashing back to stock?
Check your IMEI number to see if you don't have the generic one.
Check product code to see if it's not botched also.
Xstop said:
Have you confirmed that your phone is still unlocked after flashing back to stock?
Check your IMEI number to see if you don't have the generic one.
Check product code to see if it's not botched also.
Click to expand...
Click to collapse
Well, after installing stock, I insert my SIM back and did not ask for the unlock code, so I assume it's still unlocked.
My IMEI is the same as in the box and IMEI SV = 01
Where can I check product code??
Try *2767*4387264636#
Thanks! Product code is SGH-I897ZKAATT
Everything seems right, if I had to guess... It's more on the unlocking issue after you flashed Froyo with your network.
Try referring to this: http://forum.xda-developers.com/showthread.php?t=831569
I just checked network status screen and everything is off, so the phone it's unlocked :S
Sorry I can't provide you with any more help brotha.
You don't have a corrupted nv_data.bin file, which is good.
Your IMEI number is correct, which I suspected first, cause there were discussion of the generic IMEI number not working on other networks besides AT$T.
Since it doesn't matter what rom, kernel, modem combination you use with no avail.
I would wait to see if someone else chimes in here that might have other ideas.
Things I would do though: Call to see if there is any outages.
Update through kies to see if you get service from the update.
Hope its not hardware related.
Sorry again and good luck. I will keep on searching for ya though
Xstop said:
Sorry I can't provide you with any more help brotha.
You don't have a corrupted nv_data.bin file, which is good.
Your IMEI number is correct, which I suspected first, cause there were discussion of the generic IMEI number not working on other networks besides AT$T.
Since it doesn't matter what rom, kernel, modem combination you use with no avail.
I would wait to see if someone else chimes in here that might have other ideas.
Things I would do though: Call to see if there is any outages.
Update through kies to see if you get service from the update.
Hope its not hardware related.
Sorry again and good luck. I will keep on searching for ya though
Click to expand...
Click to collapse
Thanks for your help!!
Phone was unlocked by the Galaxy S Unlock app.
And the signal is very poor, usually only one bar or no signal.
I've tried a few modems, but the result seems on change.
I found my IMEI is 0049990........
Product code: SGt ActiveAATT
Does a fake IMEI related with signal?
How can I fix the signal problem?
It is quite possible members on xda have faced connection problem with the generic imei, You can only restore the original imei if u had ever backed up the efs folder which contains the NV_DATA.BIN. If u don't have the correct NV file then its not possible to restore it, You can contact connection2005 he can repair it.
Or you can try this method people have said they were able to restore it with this but it dint worked for me when i once tried it.
http://forum.xda-developers.com/showthread.php?t=881162&highlight=imei
rkkaranrk said:
It is quite possible members on xda have faced connection problem with the generic imei, You can only restore the original imei if u had ever backed up the efs folder which contains the NV_DATA.BIN. If u don't have the correct NV file then its not possible to restore it, You can contact connection2005 he can repair it.
Or you can try this method people have said they were able to restore it with this but it dint worked for me when i once tried it.
http://forum.xda-developers.com/showthread.php?t=881162&highlight=imei
Click to expand...
Click to collapse
I tried the method, but still unsolved.
Because I lost my nv_data.bin, there is no any way to edit nv_data to get my IMEI back?
You have to contact connecxion2005 he can do it. Search for mobile tech videos on youtube he is the guy who can help u.
rkkaranrk said:
You have to contact connecxion2005 he can do it. Search for mobile tech videos on youtube he is the guy who can help u.
Click to expand...
Click to collapse
Get it.
I just have UnBrickable Mod from mobiletechvideos last week.
Before spending money to fix, is it any help to replace my nv_data.bin with other phone's?
I find a nv_data.bin of UK version i9000, and I'm trying to replace with it now.
I mailed to mobiletechvideo.com and ask.
They said the signal problem is not related to IMEI, and I should try different modems.
So what modems could fix this problem?
What ROM are u on?
fuloplori said:
What ROM are u on?
Click to expand...
Click to collapse
I've tried SensatioN, Illuminance, Espresso, and stock JF6 & KJ3. The signal problems are the same.
Is kj3 (i987 base rom) the one ur currently running? If so try kb1, kf1, kh3 ... the captivate modems, if ur on a i9k rom then use the i9k modems kc1,jk4 ,jl2 ,kg3 (the popular ones)...
tennyleaz said:
Before spending money to fix, is it any help to replace my nv_data.bin with other phone's?
I find a nv_data.bin of UK version i9000, and I'm trying to replace with it now.
Click to expand...
Click to collapse
It won't work
Even if it did, that would (most likely) change the IMEI, which is illegal in the United States and several other countries
Basically, your IMEI has to be rebuilt using either Connexion2005's services or one of the SPT/RIFF box kits.
My phone is the same way; the more I think about it, the more I suspect that ATT just sent me a device with a broken IMEI. My EFS backup from when I first got CM7 says the generic IMEI and has the product code line completely broken anyhow.
I would be very appreciative if someone could post the segment of their working NV_DATA.bin from address 00188000 to 00188030 so that I can correct mine to what it should be; the 188008 fix frequently linked to on this forum did not finish the job.
EDIT: I just noticed that my EFS backups seem to be tied in SOME way to the CSC flashed to the phone... Does anyone have the latest I897 ATT CSC?
Aus_Azn said:
It won't work
Even if it did, that would (most likely) change the IMEI, which is illegal in the United States and several other countries
Basically, your IMEI has to be rebuilt using either Connexion2005's services or one of the SPT/RIFF box kits.
My phone is the same way; the more I think about it, the more I suspect that ATT just sent me a device with a broken IMEI. My EFS backup from when I first got CM7 says the generic IMEI and has the product code line completely broken anyhow.
I would be very appreciative if someone could post the segment of their working NV_DATA.bin from address 00188000 to 00188030 so that I can correct mine to what it should be; the 188008 fix frequently linked to on this forum did not finish the job.
EDIT: I just noticed that my EFS backups seem to be tied in SOME way to the CSC flashed to the phone... Does anyone have the latest I897 ATT CSC?
Click to expand...
Click to collapse
You can dl the firmware from www.samfirmware.com
I don't know about all g the latest leaks, but I know kf1 has the csc file in it.
Or
Download t the Odin 3 file version of KF1 in my sig.I it has it in there. If you aren't registered at samfirm, that would be the easiest way.
mrhaley30705 said:
You can dl the firmware from www.samfirmware.com
I don't know about all g the latest leaks, but I know kf1 has the csc file in it.
Or
Download t the Odin 3 file version of KF1 in my sig.I it has it in there. If you aren't registered at samfirm, that would be the easiest way.
Click to expand...
Click to collapse
Just as an update:
The samfirmware.com site is going to be defunct soon (end of 2011), and all its information will move to a new site: www.sammobile.com. If you had a samfirmware account, you'll have to re-register at the new site. Sounds like they'll have all the firmware at the new place like before, just a new name/site.
jmtheiss said:
Just as an update:
The samfirmware.com site is going to be defunct soon (end of 2011), and all its information will move to a new site: www.sammobile.com. If you had a samfirmware account, you'll have to re-register at the new site. Sounds like they'll have all the firmware at the new place like before, just a new name/site.
Click to expand...
Click to collapse
Thanks for the heads up.
Update:
I fixed the IMEI from mobiletechvideo.com, and still get the same signal problem.
I only receive 1 bar or no bar signals on T-mobile.
tennyleaz said:
Update:
I fixed the IMEI from mobiletechvideo.com, and still get the same signal problem.
I only receive 1 bar or no bar signals on T-mobile.
Click to expand...
Click to collapse
Because you don't get 3G on T-mobile with the Captivate...
Sent from my I897 using xda premium
b-eock said:
Because you don't get 3G on T-mobile with the Captivate...
Sent from my I897 using xda premium
Click to expand...
Click to collapse
No, I'm not meaning data connection. I know I will get edge only.
I mean the phone signal itself is very unstable, sometimes no signal at all.
Well try flashing different modems... I will help you through this.
Sent from my I897 using xda premium
b-eock said:
Well try flashing different modems... I will help you through this.
Sent from my I897 using xda premium
Click to expand...
Click to collapse
I'm trying a few modems from this thread: http://forum.xda-developers.com/showthread.php?t=1300843
Most of them have very poor signal or no signal at all. Few can have 1~2 bars of signals sometimes.
I tried those until now:
je5 0~2 bars
jf1 no service
jf6 no service
jh2 0~1
jh3 0~1
jh7 0
ji6 no service
jj4 1~2
jl1 0~2
jl2 no service
kb1 0
ke3 0
kf1 0~2
How I use the modems is download them into sdcard and flash through CWM. Do I miss something?
Or any other issue I didn't notice?
Have you tried RAT selection? This is a workaround for RAT on I897 modems.
Well, just as the title says. I have an I9000L in here that has no signal. Thought it might be an issue with csc files since it was updated to ICS, but then i flashed it back to gingerbread and nothing change. I used the stock rom with no luck, problem is that it shows imei, baseband and everything in place. Thinking it might be a hardware problem to this point. But i oppened it and everything seems in place. Just wondering if it may have a burned baseband chip. But then again it shows the baseband version so my guess is thats not the case. Could someone help me on this???
enelyam said:
But then again it shows the baseband version so my guess is thats not the case. Could someone help me on this???
Click to expand...
Click to collapse
Check your network settings
menu.settings>wireless and networks > mobile networks
or try https://play.google.com/store/apps/...SwxLDEsImNvbS5ha3ZlbG9uLnNpZ25hbHRyYWNrZXIiXQ..
Nope, no luck with the apk. Neither checking network or anything like that. The phone will just not allow me to do so. Like i said, the weird thing is that everythin seems to be working fine. I have an efs backup so i deleted the nv_data.bin to check if the phone is creating a new one and it is. It shows baseband, imei and everything. im starting to guess its a hardware failure but then again. The phone is almost brand new. I mean it was bought not too long ago. It was unlocked, and after flashing it shows multiple csc contents. I have fix something similar to this by applying the PCT csc(Claropr csc). But this time nothing is working...
The reason you didn't have a signal on ics is probably due to the fact you didn't flash a modem from here http://forum.xda-developers.com/showthread.php?t=1158783
[CM7/MIUI/ICS/CM9][06.01.12] Modems + Bootloaders(MD5)
So it might be worth going back to ics, doing that to get your signal back, and then reverting to Sammy Rom to see if that sorts it....btw there are no csc files on aosp/cm9 Roms
Okay thanks M8, one other thing. Initially the phone had signal on ICS. It was DOCs ICS if i can remember. I think that custom firmware will flash a new modem? Or not? And is it possible that it had signal and lost it because of that? Anyways thanks i will give it a try then....
enelyam said:
Okay thanks M8, one other thing. Initially the phone had signal on ICS. It was DOCs ICS if i can remember. I think that custom firmware will flash a new modem? Or not? And is it possible that it had signal and lost it because of that? Anyways thanks i will give it a try then....
Click to expand...
Click to collapse
Some ics Roms do, some don't, you can always flash another in recovery of the one that comes with Rom is no good for your region
ALWAYS make sure you are using the right radio for your phone. It solves many network issues
Ok then so i guess it might be a hardware issue if thats the case. Because i have use that rom before on a i9000 and never seen something like this. Hummm! Ive done just about everything and i cant still get signal. Goshhh! I rather have the phone showing no baseband or something than dealing with this....
You have checked your apn settings haven't you?!
Yeap M8 APN settings are correct. But in fact APN settings have nothing to do with the cell phone signal in terms of calls. If your phone is working it will receive the signal. The APN settings as far as im concerned will just set the internet and mms settings. Maybe with them set the phone will try to reach the towers(Antennas) but anyways the APN settings are correct.
I just upgrade my Captivate to CM9 ICS from GB. When I enter *#7465625# to check the lock status. Nothing happens. I remember it worked fine when I did this prior to the upgrade. Is it nornal? or did I break anything?
Thanks.
bigboy0723 said:
I just upgrade my Captivate to CM9 ICS from GB. When I enter *#7465625# to check the lock status. Nothing happens. I remember it worked fine when I did this prior to the upgrade. Is it nornal? or did I break anything?
Thanks.
Click to expand...
Click to collapse
You didn't break anything . Pretty much all the special codes I've ever used stops working on ICS and JB. That being said I'm guessing you're wanting to check your GPS lock status. Download GPS Test from the play store and that should show you everything you'll ever want to know about your lock status.
I might not be very clear in my question, Sorry.
I actually want to vertify if my phone is locked or unlocked after the upgrade; like using *#06# to review the IMEI.
bigboy0723 said:
I might not be very clear in my question, Sorry.
I actually want to vertify if my phone is locked or unlocked after the upgrade; like using *#06# to review the IMEI.
Click to expand...
Click to collapse
I wasn't able to find a good solution for this either (did an unlock a couple weeks ago). I had to just try it with a SIM card from a phone on another network.
Once unlocked ---- Always unlocked.
And the reason those USSD Codes won't work...basically from what lil I know...is because they are either Samsung ussd codes or Carrier Specific Codes and therefore you need to be on a Stock Firmware for them to work (like m1batt1 was pointing out). --- Although some may by chance work.
There is a flashable zip that will restore the *#*#2263#*#* code on the Cappy which let's you change modem frequencies but I don't think it restores that code. Browse through the Slim threads. I'm on my phone and cannot link the zip.
Sent from my SGH-I897 using xda premium
Ok,
Before I get flamed... I've read 30 or posts about this.... both here and other forums, so here we go:-
It's a i9000 from Orange UK. I paid my £20 and got an unlock code off the internet, and it's stopped complaining about the O2 Sim in it now, but all I get is 'Emergency Calls Only'
I've tried stock roms, ezbase recovery, CM9 and CM10 and no matter what, I get 'Emergency Calls Only'
I checked:-
SIM connections are clean (and SIM in the right way round!)
IMEI matches the one on the phone.
Settings reports:-
GT-i9000
Android 4.2.2
Baseband I9000XXJVT
Kernel 3.0.78.g69c9cbc
Works fine if you stick in an Orange SIM :'(
Ready to bin it and buy a cheap Android from Tesco....
Go back to stock to test it. If it still doesnt work then you have been ripped off
mrjraider said:
Go back to stock to test it. If it still doesnt work then you have been ripped off
Click to expand...
Click to collapse
Clearly by the same bloke that sold you glasses...
I've already tried returning to Stock (and a number of other ROM's)
Try using the galaxy sim unlock from the market thats i got mine unlocked
Edit: don't bin it there is always a way to make it work xD
Sent from my GT-I9000 using xda app-developers app
Lennyman said:
Clearly by the same bloke that sold you glasses...
I've already tried returning to Stock (and a number of other ROM's)
Click to expand...
Click to collapse
Lols for that comment