No signal with signal bars - T-Mobile Samsung Galaxy S II SGH-T989

My phone has been acting weird ever since I got my power button replaced a while back. So anyway my problem is that my phone will show that it has like five bars and then just drop to zero bars/no signal. I've tried different radios, stock gingerbread and stock jellybean. I'm currently running cm11 after I came from stock jellybean. I've tried a new sim card no difference. Any suggestions is my radio going bad?
Sent from my SAMSUNG-SGH-T989 using XDA Free mobile app

Need more details. What ROM or stock android version are you on. What radio installed.
And did you check your apn settings??

kj2112 said:
Need more details. What ROM or stock android version are you on. What radio installed.
And did you check your apn settings??
Click to expand...
Click to collapse
Checked my apn setting there fine, tried almost all the raidos i could find (as stated) currently using uvmc6 and i was on stock jelly bean(as stated) but im now on pacman 4.4 beta 1 running and im seeming to get the best service on this rom not sure why but i know its a problem with the phone not sure what but i know its the phone because if i put my sim in another phone it works perfect and that's a att blackberry.

apples723 said:
Checked my apn setting there fine, tried almost all the raidos i could find (as stated) currently using uvmc6 and i was on stock jelly bean(as stated) but im now on pacman 4.4 beta 1 running and im seeming to get the best service on this rom not sure why but i know its a problem with the phone not sure what but i know its the phone because if i put my sim in another phone it works perfect and that's a att blackberry.
Click to expand...
Click to collapse
Old but if it helps in any way, it may be the sim card /sd card board, u may have to replace it.

Related

S3 w/ Straight Talk Issue

I have a 16GB AT&T Galaxy S3 running on Straight Talk. I have rooted the phone and even running the stock rom I have no issues. Text data mms everything works. The issue is when I try to run a custom rom, I have tried synergy, hyperdrive as well as a few other, when it boots up it always says I have no sim installed. reboot, same thing. Wipe everything, reinstall, same thing. I am not a developer by any means, but I have been flashing roms since my first mytouch 3g back in the day. As soon as I go back to the stock rom, all is well again. Any insight would be much appreciated. Thanks.
Do you put in the correct apn for straight talk?
Sent from my SAMSUNG-SGH-I747 using xda premium
Yes, as I said I can have the phone working perfect on the stock rom. 4g mms sms everything. Putting the same settings on the custom form and no go. Its not like im not getting signal, it litteraly doesnt detect the sim.
jdog111578 said:
I have a 16GB AT&T Galaxy S3 running on Straight Talk. I have rooted the phone and even running the stock rom I have no issues. Text data mms everything works. The issue is when I try to run a custom rom, I have tried synergy, hyperdrive as well as a few other, when it boots up it always says I have no sim installed. reboot, same thing. Wipe everything, reinstall, same thing. I am not a developer by any means, but I have been flashing roms since my first mytouch 3g back in the day. As soon as I go back to the stock rom, all is well again. Any insight would be much appreciated. Thanks.
Click to expand...
Click to collapse
I have ST and an S3 with no issues. I know you said it works on stock, but your only option may be to call ST and request a new SIM. Even if the APNs were incorrect in the custom ROM, it would STILL DETECT the SIM. If it is saying NO SIM DETECTED, it is a HW issue.
Hope I Helped Out A Bit,
Tee Jay
jdog111578 said:
I have a 16GB AT&T Galaxy S3 running on Straight Talk. I have rooted the phone and even running the stock rom I have no issues. Text data mms everything works. The issue is when I try to run a custom rom, I have tried synergy, hyperdrive as well as a few other, when it boots up it always says I have no sim installed. reboot, same thing. Wipe everything, reinstall, same thing. I am not a developer by any means, but I have been flashing roms since my first mytouch 3g back in the day. As soon as I go back to the stock rom, all is well again. Any insight would be much appreciated. Thanks.
Click to expand...
Click to collapse
Works great for me. I'm a reseller & test all my phones & have had no issues using my ST SIM in any S3 (att or tmo). Strange...
Sent from my HTC PH39100 using xda premium
I'm thinking its the sim. Its def not a kernal issue or signal problem. Its just not detected. Why it only happens on a custom rom and the stock one still works is beyond me. Going to head to Walmart and get a new sim and see what happens. Thanks again!
jdog111578 said:
I'm thinking its the sim. Its def not a kernal issue or signal problem. Its just not detected. Why it only happens on a custom rom and the stock one still works is beyond me. Going to head to Walmart and get a new sim and see what happens. Thanks again!
Click to expand...
Click to collapse
Good luck finding a ST ATT sim at Walmart.

Radio not working when wifi is on.

I've had this Samsung S3 for almost a year now, and in the pass week, my radio has been acting funny, It dropped the IMEI, and pretty must lost all connections with my 3G network, So I ended up wipe the phone and setting it back to the default S3 ROM, after being on cyanogen mod ROM for a few months. After a bit of fiddling, I ended up finally getting my IMEI number back, and it worked fine.... till I connected to Wifi. After I connect to the Wifi, my radio stops working period. Any ideas on what could be wrong?
I'm running a Samsung SGH-1747M, which is an AT&T version, although my carrier is rogers in Canada.
Mat244885 said:
I've had this Samsung S3 for almost a year now, and in the pass week, my radio has been acting funny, It dropped the IMEI, and pretty must lost all connections with my 3G network, So I ended up wipe the phone and setting it back to the default S3 ROM, after being on cyanogen mod ROM for a few months. After a bit of fiddling, I ended up finally getting my IMEI number back, and it worked fine.... till I connected to Wifi. After I connect to the Wifi, my radio stops working period. Any ideas on what could be wrong?
I'm running a Samsung SGH-1747M, which is an AT&T version, although my carrier is rogers in Canada.
Click to expand...
Click to collapse
try reflashing your modem, also what rom are you on atm?
Danvdh said:
try reflashing your modem, also what rom are you on atm?
Click to expand...
Click to collapse
Like on my phone? how would i do that and Stock andoird right now was on cyanogenmod but was having problems for some reason...
Mat244885 said:
Like on my phone? how would i do that and Stock andoird right now was on cyanogenmod but was having problems for some reason...
Click to expand...
Click to collapse
did you get back to stock touchwiz android using odin or using recovery mode?
Danvdh said:
did you get back to stock touchwiz android using odin or using recovery mode?
Click to expand...
Click to collapse
Odin
If you flashed a full stock package, it flashed the modem too
mrhaley30705 said:
If you flashed a full stock package, it flashed the modem too
Click to expand...
Click to collapse
Yeah kinda figured that... i had cyanogenmod on my phone since i got it then i started having all these radio issues thought it was rogers but i guess not... then i some how lost my IMEI got it back and still having radio problems just worst now... Ahhh i miss my simple Windows Phone 7 now hahaha

t989 no service no network registered after flashing alpha 1 cm10

I don't have any service at all i can't register to any network i've tried going back to stock unrooting everything
tdt1345 said:
I don't have any service at all i can't register to any network i've tried going back to stock unrooting everything
Click to expand...
Click to collapse
Ummm... do you mean CM10.2 Alpha1? Because otherwise you're sooooo far back on CM revs it's not worth it (latest stable is 10.1.2).
Either way, make sure you're at UVMC6 baseband/radio -- non-JB radios don't work on CM10+ (JB) -- and you get what your phone is experiencing; no cellular network service (WiFi should be OK).
Sicily1918 said:
Ummm... do you mean CM10.2 Alpha1? Because otherwise you're sooooo far back on CM revs it's not worth it (latest stable is 10.1.2).
Either way, make sure you're at UVMC6 baseband/radio -- non-JB radios don't work on CM10+ (JB) -- and you get what your phone is experiencing; no cellular network service (WiFi should be OK).
Click to expand...
Click to collapse
Yes that's what I mean I flashed the UVMC6 Baseband/radio still no service I'm back at stock everything no service still
tdt1345 said:
Yes that's what I mean I flashed the UVMC6 Baseband/radio still no service I'm back at stock everything no service still
Click to expand...
Click to collapse
That's bizarre... you're not even rooted anymore, I take it? Did you do a full factory wipe after going to stock ROM (it's probably redundant, but what the hell)?
There's one other possibility -- it happened on my BlackBerry a few years ago and I got a strange error (dunno if Android gives that sort of error or where) -- basically, I had a bad SIM that still worked (it just couldn't connect, but the phone saw it as a normal SIM). I replaced it, called T-Mo and gave them the new SIM number (you can do it online nowadays) and was back up and running in minutes.
Of course, try pulling out the battery, SIM, and SD card, then put everything back in and power on...
Sicily1918 said:
That's bizarre... you're not even rooted anymore, I take it? Did you do a full factory wipe after going to stock ROM (it's probably redundant, but what the hell)?
There's one other possibility -- it happened on my BlackBerry a few years ago and I got a strange error (dunno if Android gives that sort of error or where) -- basically, I had a bad SIM that still worked (it just couldn't connect, but the phone saw it as a normal SIM). I replaced it, called T-Mo and gave them the new SIM number (you can do it online nowadays) and was back up and running in minutes.
Of course, try pulling out the battery, SIM, and SD card, then put everything back in and power on...
Click to expand...
Click to collapse
The sim works in different phones just not this one
The phone is blacklisted....
Sent from my SGH-T989 using xda app-developers app
[email protected] said:
The phone is blacklisted....
Sent from my SGH-T989 using xda app-developers app
Click to expand...
Click to collapse
how it worked before I flashed cm10

no signal after flashing rom

i have a samsung galaxy s3, ive been rooted for a long time and flashing roms all the time. well i flashed a rom just now and i have no signal, not sure if i burned out the radio (not sure if thats possible, but it also said to insert sim card while it was already inserted), but i dont understand how that would happen. the sim card works in another phone that im using now, so its not the sim card thats causing the issue. my carrier is at&t, and no signal showing, not data or cell (wifi still works, but thats a different story). has anyone experienced this and know how to fix it? im guessing modem flashing, but not entirely sure. can someone please point me in the right direction? Thanks in advance!
ohaai said:
i have a samsung galaxy s3, ive been rooted for a long time and flashing roms all the time. well i flashed a rom just now and i have no signal, not sure if i burned out the radio (not sure if thats possible, but it also said to insert sim card while it was already inserted), but i dont understand how that would happen. the sim card works in another phone that im using now, so its not the sim card thats causing the issue. my carrier is at&t, and no signal showing, not data or cell (wifi still works, but thats a different story). has anyone experienced this and know how to fix it? im guessing modem flashing, but not entirely sure. can someone please point me in the right direction? Thanks in advance!
Click to expand...
Click to collapse
Aww anyone?
ohaai said:
Aww anyone?
Click to expand...
Click to collapse
just a suggestion, but try rebooting your phone again. this happened to me before and i got freaked out but a reboot has fixed this on a few occasions. running a flashed rom just fine right now.
ohaai said:
i have a samsung galaxy s3, ive been rooted for a long time and flashing roms all the time. well i flashed a rom just now and i have no signal, not sure if i burned out the radio (not sure if thats possible, but it also said to insert sim card while it was already inserted), but i dont understand how that would happen. the sim card works in another phone that im using now, so its not the sim card thats causing the issue. my carrier is at&t, and no signal showing, not data or cell (wifi still works, but thats a different story). has anyone experienced this and know how to fix it? im guessing modem flashing, but not entirely sure. can someone please point me in the right direction? Thanks in advance!
Click to expand...
Click to collapse
I believe you need to do a factory reset. Backup your data first!
Sent from my SGH-T999 using XDA Premium 4 mobile app
The first thing to troubleshoot you should do is flash back to a rooted stock rom and make sure the data is working there. If so this will rule out any sort of hardware problem. You didn't say whether or not you did but you can also try fully wiping the phone (dalvik/cache, system, and data), re-download the rom incase you had a bad one the first time and reflash. Other than that check that maybe check the apn settings.
Yup I ended up doing that last night..im back on the stock root injected rom. So im still rooted and network now works! So im glad. How would I flash a rom without losing the network this time?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
ohaai said:
Yup I ended up doing that last night..im back on the stock root injected rom. So im still rooted and network now works! So im glad. How would I flash a rom without losing the network this time?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Now that you have flashed back to stock a full wipe has been done in the process. At this point all you can do is flash it and see, but as i said i would redownload if you plan on using whatever rom it was you mentioned in the OP. I would also do a full nandroid backup to save the pain of using odin incase it doesn't work. I imagine the problem was with lingering files/fragments from multiple flashes that were causing the problem, in any case whatever the problem happened to be it was software related.
K will do. Its just weird because the md5 matched and everything..but I will for sure download the rom and gapps again. Thanks for the tips!
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
well, i finally got the service to work after flashing a rom. it still remains a mystery to me tho, i used to always use the illusion rom everyday, for months. i decide to flash the same exact one but no service, i download it a couple more times and still no service after flashing about 3 or 4 times. i tried a completely different rom and the service is active. i dont understand why and cant figure out what is so different this time hah. o well, im just glad its all working now even though its with a different rom. thanks for the help guys!
ok, im back =[
i was using the carbon rom with no problems, it was working great, but just a half hour ago i was listening to music and texting (i always do this), and then phone just turned off. I tried to reboot it but it wont! it always shuts off while booting. i made it to CWM, but it turns off while in CWM. i also made it to download mode, which led me to assume that the phone is not bricked, but it doesnt stay on download mode, it just turns off randomly. i figured maybe it was battery, so i tried another, and no change! does anyone know what the issue is? i cant figure out how to keep the phone ON, or why its not staying on.
btw, i got it to boot completely just once, and it was acting up still. any ideas? please help
Thanks in advance
dntesinfrno said:
The first thing to troubleshoot you should do is flash back to a rooted stock rom and make sure the data is working there. If so this will rule out any sort of hardware problem. You didn't say whether or not you did but you can also try fully wiping the phone (dalvik/cache, system, and data), re-download the rom incase you had a bad one the first time and reflash. Other than that check that maybe check the apn settings.
Click to expand...
Click to collapse
Already flashed back to backed up stock rom but still no signal. But when I use the MIUI rom, it has signal.
driht said:
Already flashed back to backed up stock rom but still no signal. But when I use the MIUI rom, it has signal.
Click to expand...
Click to collapse
What is the bootloader and baseband version on the phone? Which version of stock are you flashing?

[Q] Lost LTE after switching to KitKat

I decided to give Kit Kat another try a few days ago, but since then I have not been able to connect to LTE.
Prior to flashing I was running CM10.2 and my LTE was working fine. I initially lost LTE when I flashed PACMAN. I have also tried AOSB/ProBAM and Beanstalk. None of the Kit Kat roms gave me LTE so I gave up and restored CM10.2, but afterward I was still not getting any LTE connection.
I tried flashing the MD4 modem, but that didn't seem to fix anything. I've also heard that going back to stock could help, but I'd rather not have Knox if I don't have to use it. Which stock ROM here on XDA would be the best (Not planning on using the ROM. I just want LTE and then will flash back to Kit Kat)? Would a different modem fix my LTE issues? Is MK3 better than MD4, or are there any newer modems I should try?
Thanks for the help!
snak1e said:
I decided to give Kit Kat another try a few days ago, but since then I have not been able to connect to LTE.
Prior to flashing I was running CM10.2 and my LTE was working fine. I initially lost LTE when I flashed PACMAN. I have also tried AOSB/ProBAM and Beanstalk. None of the Kit Kat roms gave me LTE so I gave up and restored CM10.2, but afterward I was still not getting any LTE connection.
I tried flashing the MD4 modem, but that didn't seem to fix anything. I've also heard that going back to stock could help, but I'd rather not have Knox if I don't have to use it. Which stock ROM here on XDA would be the best (Not planning on using the ROM. I just want LTE and then will flash back to Kit Kat)? Would a different modem fix my LTE issues? Is MK3 better than MD4, or are there any newer modems I should try?
Thanks for the help!
Click to expand...
Click to collapse
Any of the ROMS that have [TW] in the title should work. Full Knox only comes with flashing a tar file in ODIN, because your flashing every partition of the phone. Modified stock ROM zips do not have knox, unless otherwise noted. Make sure to do a prl and profile update when you flash to stock.
sent from my Gs3
joeyhdownsouth said:
Any of the ROMS that have [TW] in the title should work. Full Knox only comes with flashing a tar file in ODIN, because your flashing every partition of the phone. Modified stock ROM zips do not have knox, unless otherwise noted. Make sure to do a prl and profile update when you flash to stock.
sent from my Gs3
Click to expand...
Click to collapse
Flashed Wicked Sensations last night with the MK3 modem and I seemed to be getting LTE as soon as that booted. Updated my PRL and Profile, and then wiped. Installed AOSB again, and I seemed to be getting LTE until I rebooted. After the first reboot I seem to be stuck in 3G again.
Im currently running AOSB on 2 devices. When I first flashed them, I had the same issue until I rebooted the phone. After that I never had this issue again.
sent from my Gs3
joeyhdownsouth said:
Im currently running AOSB on 2 devices. When I first flashed them, I had the same issue until I rebooted the phone. After that I never had this issue again.
sent from my Gs3
Click to expand...
Click to collapse
I think that's the opposite of what happened to me. My status bar said I had LTE when I first booted AOSB (this was after flashing/wiping TW). After the first reboot it connected to 3G and I haven't seen the LTE signal since.
I have updated the APNs, but I was using the same APNs for a while and had LTE on CM10.2 with them.
snak1e said:
I think that's the opposite of what happened to me. My status bar said I had LTE when I first booted AOSB (this was after flashing/wiping TW). After the first reboot it connected to 3G and I haven't seen the LTE signal since.
I have updated the APNs, but I was using the same APNs for a while and had LTE on CM10.2 with them.
Click to expand...
Click to collapse
This is something wierd with Kitkat. I do not believe a fix has been found just yet. but if you dial *#*#info#*#* on most phones you can get into the phone systems and turn LTE back on.
ShrekOpher said:
This is something wierd with Kitkat. I do not believe a fix has been found just yet. but if you dial *#*#info#*#* on most phones you can get into the phone systems and turn LTE back on.
Click to expand...
Click to collapse
I didn't know about this menu. Thanks for that. I went into Phone Info and tried selecting LTE only but it didn't connect to anything. Not sure what that means. There are other
There are some other options in there for networks (e.g. TD-SCDMA, CDMA auto). Would any of them help picking up Sprint LTE?
Other options include:
Turn off radio, CellInfoListRate
Turn on IMS registration required
Turn on SMS over IMS
Turn on lte ram dump
SMSC:_____________ Update Refresh
snak1e said:
I didn't know about this menu. Thanks for that. I went into Phone Info and tried selecting LTE only but it didn't connect to anything. Not sure what that means. There are other
There are some other options in there for networks (e.g. TD-SCDMA, CDMA auto). Would any of them help picking up Sprint LTE?
Other options include:
Turn off radio, CellInfoListRate
Turn on IMS registration required
Turn on SMS over IMS
Turn on lte ram dump
SMSC:_____________ Update Refresh
Click to expand...
Click to collapse
KitKat roms are currently having data issues. You could try backing up your current KK rom and go back to Stock, update prl and backup your DNS settings then go back to your backed up KK rom and restore from the dns settings you backed up.
How does one downgrade from kitkat to jellybean? I tried to just flash a jellybean ROM with a clean install and got an error?
Sent from my SPH-L710 using Tapatalk
TheManiac said:
How does one downgrade from kitkat to jellybean? I tried to just flash a jellybean ROM with a clean install and got an error?
Sent from my SPH-L710 using Tapatalk
Click to expand...
Click to collapse
What error ad you getting exactly?
Sent from my SPH-L710 using Tapatalk
djpabz23 said:
What error ad you getting exactly?
Sent from my SPH-L710 using Tapatalk
Click to expand...
Click to collapse
It says something to do with missing a partition?
Sent from my SPH-L710 using Tapatalk
snak1e said:
I decided to give Kit Kat another try a few days ago, but since then I have not been able to connect to LTE.
Prior to flashing I was running CM10.2 and my LTE was working fine. I initially lost LTE when I flashed PACMAN. I have also tried AOSB/ProBAM and Beanstalk. None of the Kit Kat roms gave me LTE so I gave up and restored CM10.2, but afterward I was still not getting any LTE connection.
I tried flashing the MD4 modem, but that didn't seem to fix anything. I've also heard that going back to stock could help, but I'd rather not have Knox if I don't have to use it. Which stock ROM here on XDA would be the best (Not planning on using the ROM. I just want LTE and then will flash back to Kit Kat)? Would a different modem fix my LTE issues? Is MK3 better than MD4, or are there any newer modems I should try?
Thanks for the help!
Click to expand...
Click to collapse
ohhh i had this issue but i figured it out for pacman and most roms just download nova launcher and when you do create a shortcut on nova ad click on setting an it should say apn once there u open it and youll see where it says ehprd something like that click on it and go all the way to the bottom and change where it says bearer to ehrpd and lte should work ^_^
Ok so I finally got it working, although I'm not sure what was wrong with everything in the first place. My buddy said Cyanogenmod screwed up a recent ROM, so maybe that code was in one of the ROMs I was using.
Each time I flashed back to TouchWiz (I ended up using Wicked Sensations) I could get 4G/LTE. I ran a **72786*, did a PRL & profile update. Prior to finding a working ROM, when I went back to BeanStalk/PACMAN I would lose LTE. After I found the updated BeanStalk ROM I flashed and it still had LTE! Happy days!
At this point I was able to send MMS somehow, but phone was having problems being recognized by the network. I could connect to LTE but couldn't use the data. After I updated the APNs everything started working again.
snak1e said:
Ok so I finally got it working, although I'm not sure what was wrong with everything in the first place. My buddy said Cyanogenmod screwed up a recent ROM, so maybe that code was in one of the ROMs I was using.
Each time I flashed back to TouchWiz (I ended up using Wicked Sensations) I could get 4G/LTE. I ran a **72786*, did a PRL & profile update. Prior to finding a working ROM, when I went back to BeanStalk/PACMAN I would lose LTE. After I found the updated BeanStalk ROM I flashed and it still had LTE! Happy days!
At this point I was able to send MMS somehow, but phone was having problems being recognized by the network. I could connect to LTE but couldn't use the data. After I updated the APNs everything started working again.
Click to expand...
Click to collapse
How did you update your APN's?
try switching to philz touch recovery where it will give you 2 options....do clean to install a new rom.....if works....thks appreciated...safe flashing and live prosperous
djpabz23 said:
How did you update your APN's?
Click to expand...
Click to collapse
This should work http://forum.xda-developers.com/showthread.php?t=1794956

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