Develop Bugs

sim card not detected

whenever i flash anything even to root it when i boot back up it says sim not detected , says imei is null,and baseband unknown.my phone is unlocked but it just started being a problem recently .so i have been trying to do different things but always have to restore from back up.i am a flashaholic and i havent had any problems ever on this till now.

brentsalinas714 said:
whenever i flash anything even to root it when i boot back up it says sim not detected , says imei is null,and baseband unknown.my phone is unlocked but it just started being a problem recently .so i have been trying to do different things but always have to restore from back up.i am a flashaholic and i havent had any problems ever on this till now.
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It would help to get more info on what you flashed and how you flashed it. Perhaps it's one of those wipe things or what not? Or restoring an app?
I get 'baseband unknown' on a few ROMs that I test flashed. I got it on JMT when I flashed it recently.
So you have to restore from the NAND backup just to get the phone working?

Cant make phone calls

I first seen this problem when i flashed synergy rom. My phone failed to activate so as a result it wouldnt make/recieve phone calls but i could text and use data normally. So i tried skipping the setup, using global apn, went to stock then came back, re-flashed many times and the result was either no service or i couldnt make/recieve calls. So i tried to Odin back to stock and unroot, then tried a different rom but still it wouldnt work. I then restored a backup i had of CS ROM but still not working. Any help would be appreciated.
Update: Okay so incase anyone runs into this problem I found a fix that works for me. What i did was bring my phone completely to stock and unroot it. Then i got a notification telling me about a software update, when i opened it a popup came telling me Im now registered. Then I rooted and flashed synergy rom, skipped the setup but then text or phone calls didnt work, so i put airplane mode on then off, and voila it working again.

osman212 said:
I first seen this problem when i flashed synergy rom. My phone failed to activate so as a result it wouldnt make/recieve phone calls but i could text and use data normally. So i tried skipping the setup, using global apn, went to stock then came back, re-flashed many times and the result was either no service or i couldnt make/recieve calls. So i tried to Odin back to stock and unroot, then tried a different rom but still it wouldnt work. I then restored a backup i had of CS ROM but still not working. Any help would be appreciated.
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Click to collapse
Did you check your IMEI? If it's unknown or 0, there's a stickied thread on how to restore it.
Also, make sure you have the right modem for you carrier (modem thread if you're not sure). As well as having the right APNs.

BWolf56 said:
Did you check your IMEI? If it's unknown or 0, there's a stickied thread on how to restore it.
Also, make sure you have the right modem for you carrier (modem thread if you're not sure). As well as having the right APNs.
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IMEI seems to be fine. I dont know why i didnt think of flashing a different modem, ill try that. Thanks

osman212 said:
IMEI seems to be fine. I dont know why i didnt think of flashing a different modem, ill try that. Thanks
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In case you hadn't found the link yet.
http://forum.xda-developers.com/showthread.php?t=1831898

My internet data frequently disconnected

Hello,
i am back again with a new problem!
All the previous problems that was mentioned in this forum is GONE. i was a happy owner. Until i got this problem.
so i wanted to try new Modem, just so i can increase my Signal, and right now, my data plan is keep going on and off, and most the time i can't get it connected it.
i did the wipe date /factory reset from the ROM manager, and wipe cache and dalvik. and yet the problem is not solved.
right now, am running cm-10.1-20130304-EXPERIMENTAL
and the Modem am currently running which sometimes works ( I747MVLDLK4 ) am with Rogers, Canada, Edmonton, AB
If anyone helped me out with this, your next coffee is on me! for real!

anyone?

When I have Wifi or Signal/Data issues, I just Odin back to stock and then re-root & flash ROM again. Works every time.

CZ Eddie said:
When I have Wifi or Signal/Data issues, I just Odin back to stock and then re-root & flash ROM again. Works every time.
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Click to collapse
Thanks man, i really hope it works! , am gonna try this now.. When i restore to the stock, dose my based band goes to default or shall i manually do that?

just restore to the stock Rom. i still have no data connection, and now i can't even call or send a text....

MH_91 said:
just restore to the stock Rom. i still have no data connection, and now i can't even call or send a text....
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Click to collapse
Did you use ODIN to flash the stock ROM and factory reset in stock recovery ?

hednik said:
Did you use ODIN to flash the stock ROM and factory reset in stock recovery ?
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Click to collapse
Yes! i think i did a mistake. While i restored to the stock rom, The baseband that i was using it was I747MVLDLK4 and not the STOCK modem. So maybe that is why its not getting connected? am trying to apply the stock modem into the the stock rom, but its giving me Fail error.
am just scratching my head right now to be quite honest and this close to throw my cellphone outside of the balcony.

MH_91 said:
Yes! i think i did a mistake. While i restored to the stock rom, The baseband that i was using it was I747MVLDLK4 and not the STOCK modem. So maybe that is why its not getting connected? am trying to apply the stock modem into the the stock rom, but its giving me Fail error.
am just scratching my head right now to be quite honest and this close to throw my cellphone outside of the balcony.
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Click to collapse
What type of fail error?
How are you trying to flash it?

i managed to make my modem into the stock version. However am just getting "E" in my data connection. Reminder am still in STOCK ROM and stock modem now. is that a good sign that i slighty getting everything back??
should i just install the CM 10.1 now and see the results or what you guys recommend?

annnnnnnnnd my " E" is gone.. Beautiful
do you guys think it might be a actual physical sim card issue?

UPDATE: i restored my phone into the stock rom by Odin3 and now i just re flashed the Cm 10.1 again. sadly i still have no connection and my income and outcome for calling and texts is also not working.
please help!

Try flashing Task's AOKP and see if you have the same issue. Additionally, try deleting the current APNs (access point names) and manually enter the APN settings for your carrier. Could also just be a faulty SIM card as you mentioned.
Sent from my SGH-I747 using xda app-developers app

MH_91 said:
UPDATE: i restored my phone into the stock rom by Odin3 and now i just re flashed the Cm 10.1 again. sadly i still have no connection and my income and outcome for calling and texts is also not working.
please help!
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Click to collapse
You have your imei still ? I don't see that mentioned.... this sounds like that issue. flashing between TW and Custom it can happen

Thanks guys for the feedback, but i have managed to fix the problem, this post was before i know that i lost my IMEI...
All good now, everything has be resolved.
cheers,

No phone service

I can not get any radio to work to make or receive calls! I flashed everyone out there and still can not make or receive calls. What method can I use do to get it to work? I flashed radio from TWRP with Factory reset, delvik and cache and then flash with no wipe and I just cant get that or any radio to work. I just get AT&T when I do a scan, which I use T-Mobile. When I choose search in settings in mobile networks, still nothing. When I try to use phone, it always says no network avail. and yes I have data box checked off. It just seams lately any Rom I flash after the newest stock, (JB) I have radio issues, can not make or receive calls. I even erased, wiped everything and started from scratch with stock. Phones works fine, but when I try any ROM, no calls, no matter what radio I flash. I must be doing something wrong. I must say, that I flashed many a Roms before and all worked well until now! I even download same radios in case I got a bad download. I can use kernels, such as Tiberius with Stock JB. I Flash a Rom and no radio, no matter what Rom. My version in stock is UVMC6, SGH T-989 phone. (T-Mobile). I know all phones are different and thought maybe something in stock files I might be able to use, but don't know which files. I am not a dev by any means and thought if I could use the stock I have now can work with the any Rom here. I never dirty flash anything, all Roms work that I flash from sd card, just not able to use phone in any Rom at all! I thought maybe I can manually put in APN, but I have no idea were to get address to enter. I am from Delaware if that matters as far as APN. Can anyone give any suggestions of what they did to get radio to work?

Sargeue said:
I can not get any radio to work to make or receive calls! I flashed everyone out there and still can not make or receive calls. What method can I use do to get it to work? I flashed radio from TWRP with Factory reset, delvik and cache and then flash with no wipe and I just cant get that or any radio to work. I just get AT&T when I do a scan, which I use T-Mobile. When I choose search in settings in mobile networks, still nothing. When I try to use phone, it always says no network avail. and yes I have data box checked off. It just seams lately any Rom I flash after the newest stock, (JB) I have radio issues, can not make or receive calls. I even erased, wiped everything and started from scratch with stock. Phones works fine, but when I try any ROM, no calls, no matter what radio I flash. I must be doing something wrong. I must say, that I flashed many a Roms before and all worked well until now! I even download same radios in case I got a bad download. I can use kernels, such as Tiberius with Stock JB. I Flash a Rom and no radio, no matter what Rom. My version in stock is UVMC6, SGH T-989 phone. (T-Mobile). I know all phones are different and thought maybe something in stock files I might be able to use, but don't know which files. I am not a dev by any means and thought if I could use the stock I have now can work with the any Rom here. I never dirty flash anything, all Roms work that I flash from sd card, just not able to use phone in any Rom at all! I thought maybe I can manually put in APN, but I have no idea were to get address to enter. I am from Delaware if that matters as far as APN. Can anyone give any suggestions of what they did to get radio to work?
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Click to collapse
Verify your APN settings are correct. If there isn't a t mobile APN set up than try creating one. Also go to Settings > About Phone > Status and make sure your phone has a valid IMEI number (anything other than 0)
Sent from my SGH-I747 using xda app-developers app

KorGuy123 said:
Verify your APN settings are correct. If there isn't a t mobile APN set up than try creating one. Also go to Settings > About Phone > Status and make sure your phone has a valid IMEI number (anything other than 0)
Sent from my SGH-I747 using xda app-developers app
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Thanks, yeah after all reading and troubleshooting it seems APN is where I have to create and/or edit! I found APN settings on Google and wrote down the settings that is on stock Rom where phone is working and will try it. Thanks for heading me in the right direction.

Sargeue said:
Thanks, yeah after all reading and troubleshooting it seems APN is where I have to create and/or edit! I found APN settings on Google and wrote down the settings that is on stock Rom where phone is working and will try it. Thanks for heading me in the right direction.
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Click to collapse
Glad to help.
Sent from my SGH-I747 using xda app-developers app

I'm in Canada and had same problem with SlimBean ROM (which is my favourite ROM). I flashed phone back to a stock ROM, flashed DARKSIDE.SUPER.WIPE, the ROM, and Gapps with TWRP recovery (in that order) and was back in business.
T989D
TWRP 2.4
SlimBean ROM 3.4

Deacon75 said:
I'm in Canada and had same problem with SlimBean ROM (which is my favourite ROM). I flashed phone back to a stock ROM, flashed DARKSIDE.SUPER.WIPE, the ROM, and Gapps with TWRP recovery (in that order) and was back in business.
T989D
TWRP 2.4
SlimBean ROM 3.4
Click to expand...
Click to collapse
Still no radio, will try your way, thanks!

[Q] IMEI Oddity

I recently purchased a T Mobile SGH T989 off of Ebay. The seller said the phone was used but in good working condition. When I got the phone, it looked good and had little wear. I went in to settings and preformed a reset to defaults and put my sim card in to test it. The phone seemed to work fine and I tested it for about a week with the stock T Mobile rom. After a week everything on the phone worked and tested out ok. I reflashed the phone to the latest stable version of Cyanogenmod. After first boot and at the home screen, the phone never connected the T mobile service. I re flashed the Cyanogenmod rom thinking something went wrong the first time but again no service. I ran clockwork recovery to the restored the stock rom and immediately get 4 bars or service. Reflash Cyanogenmod rom again no service..back to stock phone works fine. Puzzled I went back to my old phone and decided to call T Mobile support, I read the IMEI off the back of the SGH T989 to the service rep and they told me this phone was part of a business plan that was overdue and was blocked (aka blacklisted). When I rebooted the phone and looked in system info the IMEI had been altered. I reflashed to Cyanogenmod and the phone has the same altered IMEI number as the stock rom but no service. I guess I am confused why it would work with one rom and not the other. Is there something more the governs network provider access? Is there something else I can do to get it to work?
The Ebay seller never said anything about bad IMEI, so I am going to ask for a refund and send it back if I cant fix it...just a better part of a day wasted messing with it only to go back to a Mytouch 4g.

You need the UVMC6 or TLMC4 radio from here:
http://forum.xda-developers.com/showthread.php?t=1895400

meekrawb said:
You need the UVMC6 or TLMC4 radio from here:
http://forum.xda-developers.com/showthread.php?t=1895400
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Click to collapse
Do I boot into clockwork and perform a darkside wipe and then install the radio from zip?
If I go back to the stock rom will there be any ill effect?
I don't want to have it not work in CM and also not work on stock

man0man said:
Do I boot into clockwork and perform a darkside wipe and then install the radio from zip?
If I go back to the stock rom will there be any ill effect?
I don't want to have it not work in CM and also not work on stock
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Click to collapse
You can boot into CWM and wipe cache, dalvik cache and flash the radio. And you can always go back to the radio you have now. To find out which one you have now look for baseband version in settings/about phone.