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No signal or data

I'm not skyraider Zeus preview and have no no issues till last night. Now all of a sudden since last night I have not been able to get 1x, 3g anything and signal drops. Have multiple lines on verizon and the rest of the phones are fine. Really don't want to change roms but will if I have to.

Have you tried to just reload the rom on top of what you have now?
Have you tried to restore a backup?
Sent from my ADR6400L using XDA Premium App

ibsk8 said:
Have you tried to just reload the rom on top of what you have now?
Have you tried to restore a backup?
Sent from my ADR6400L using XDA Premium App
Click to expand...
Click to collapse
Okay I just restored a backup of liquid gingersense and same problem... Starting to get a bit scared.

Alright flashed the brand new GB radio from "someplace." Still have same problem. Sometimes I have full bars but no 3g and can't get calls tried to test and calls don't go through so my phone is kinda pointless... I'm really panicking I need this thing...

When you installed the new radio did you also install the LTE radio?

Stumpsalot said:
When you installed the new radio did you also install the LTE radio?
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Click to collapse
Honestly no clue how would I be able to tell? I've installed nearly every radio and never has two separate radio files.

cstrife999 said:
Honestly no clue how would I be able to tell? I've installed nearly every radio and never has two separate radio files.
Click to expand...
Click to collapse
There are not two separate radios to install. If you downloaded MR3, it will work if you're on a GB Rom. If you're on a froyo Rom then you need a froyo radio.
Also check to make sure your battery door is completely attached. Your antennas are in the door and it must be attached.
Sent from Synergized Thunderbolt via the XDA Premium App

cstrife999 said:
I'm not skyraider Zeus preview and have no no issues till last night. Now all of a sudden since last night I have not been able to get 1x, 3g anything and signal drops. Have multiple lines on verizon and the rest of the phones are fine. Really don't want to change roms but will if I have to.
Click to expand...
Click to collapse
Were you running a leaked radio when you had this problem first off?

mAlfunkti0n said:
Were you running a leaked radio when you had this problem first off?
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Click to collapse
I was running the OTA MR2 radio since release never had any problems then last night out of nowhere it just happened. Have been scrambling ever since.

CanesDrew said:
There are not two separate radios to install. If you downloaded MR3, it will work if you're on a GB Rom. If you're on a froyo Rom then you need a froyo radio.
Also check to make sure your battery door is completely attached. Your antennas are in the door and it must be attached.
Sent from Synergized Thunderbolt via the XDA Premium App
Click to expand...
Click to collapse
Went back to MR2 radio now since I know it's not a radio issue. Battery door is completely sealed. Checked to see if the metal was bent in any way and it's not.
EDIT: Every time I reboot it gains bars back for a bit but no 3g. I've tried calling during this period to no avail. Then it looses bars with just an x over them. The one thing I am thinking is there any possibility that the sim just died...

Did you check your mobile network settings? Are you on LTE only mode possibly?

As goofy as it sounds, when I first rooted my TB awhile back I completely lost signal then was able to pick up 1x and that was it. I did a factory reset on the device (as instructed by VZW), and it actually worked. Nothing else had been done to the device besides a root, no one else could figure out what exactly went wrong, but the wipe restored it back to "factory" root and it worked perfectly.

g00s3y said:
Did you check your mobile network settings? Are you on LTE only mode possibly?
Click to expand...
Click to collapse
No LTE/CDMA. I have done like 30 factory resets lol. Called Verizon to make sure there was no outage. I'm getting a new device (Not refurbished shockingly) over-nighted. The big bummer is having to reroot and such, but hey the guy was nice about it and everthing so no complaints. I can live without it for one day. Thanks for all your help guys!

Sim card not allowing connections? [Help]

Flashed a few roms on my phone and never bricked it whats so ever. It shows the IMEI, how ever it doesnt match the IMEI it have on on the back of the phone. The phone came with 2.2.1 Froyo and i upgraded it with ODIN using KJ6 2.3.6 GB rom. I can connect to wifi and such. It's not the sim card cause it works with all my friends tmobile phones. I get bars on the phone with the sim card in it. But when i attempt to make a call it says "Not registered to Network" i went to Settings>Wireless and network>Mobile Networks>Access Point Names, i went there to do the APN Manually i tried setting it to Default and it didnt help either.
Anyone know's how to fix this?

Raziel Loctus said:
Flashed a few roms on my phone and never bricked it whats so ever. It shows the IMEI, how ever it doesnt match the IMEI it have on on the back of the phone. The phone came with 2.2.1 Froyo and i upgraded it with ODIN using KJ6 2.3.6 GB rom. I can connect to wifi and such. It's not the sim card cause it works with all my friends tmobile phones. I get bars on the phone with the sim card in it. But when i attempt to make a call it says "Not registered to Network" i went to Settings>Wireless and network>Mobile Networks>Access Point Names, i went there to do the APN Manually i tried setting it to Default and it didnt help either.
Anyone know's how to fix this?
Click to expand...
Click to collapse
Disconnect (remove) battery, leave for ten minutes, reinsert battery and sim.

htaak said:
Disconnect (remove) battery, leave for ten minutes, reinsert battery and sim.
Click to expand...
Click to collapse
Thanks for the quick reply, Does it have to be exactly 10mins? Not to sound like an idiot.

I'd say at least 10 minutes, going longer won't hurt.

htaak said:
I'd say at least 10 minutes, going longer won't hurt.
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Click to collapse
Alright , Im giving it 20mins. Hopefully it works. It's been too long and i'm starting to give up on this phone.

Still having a problem, You know any other solutions? I don't wanna have to pay for a new phone lol. If you do can you have it in FULL DETAILS. Cause i want to make sure i have have every thing correct.

I got all day to try to fix this. I don't want to try reflashing things cause i don't know if i can mess it up or cause more problems.

So.... you have flashed a few ROMs..... meaning you have at least ONE nandroid back up from when the phone worked?
If you do... you are good to go. If you don't..... good luck to you. You have what sounds like a generic IMEI.
Sent from my SGH-T959V using xda premium

lumin30 said:
So.... you have flashed a few ROMs..... meaning you have at least ONE nandroid back up from when the phone worked?
If you do... you are good to go. If you don't..... good luck to you. You have what sounds like a generic IMEI.
Sent from my SGH-T959V using xda premium
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Click to collapse
Well i don't, didn't know i have to. So in other words it's impossible to get this phone back on?

I had the same issue with my phone, it just wouldn't stay on Network, and the SIM would go back and forth from being recognized or not. I flashed back to stock and it still didn't work. The ten minute battery pull was suggested in another thread and a few people swear it works. Mine played up before this was suggested so I never tried it.
I had the same thing happen with my wifes phone and all I could link it to was the Kj6 modem...see link below. I reflashed the whole ROM and it came back.
With my phone I just called T-Mo and told them that since I upgraded to 2.3.6 via Kies that my phone wasn't working properly (Technically true, but a little stretch). I flashed Bhundvens 1click to stock, factory reset, etc...etc... then paid $20 and got a replacement phone via UPS in about 4 days.
I not saying you are having the same problem as I did, but it sounds very similar.
As a side note, the replacement SGS4G (refurb) they sent me absolutely blows my original handset out of the water when it comes to signal strength. I get solid 4G speeds of 5MB+ in my house, where before I only got patchy edge. I was amazed at the huge difference in performance between two supposedly identical handsets.
I hope you can get this remedied without an exchange, but you should be able to get a new one for $20 as a last resort.
Some links on the subject...
http://forum.xda-developers.com/showthread.php?t=1338929
http://forum.xda-developers.com/showthread.php?t=1147705

Raziel Loctus said:
Well i don't, didn't know i have to. So in other words it's impossible to get this phone back on?
Click to expand...
Click to collapse
Back ups are suggested all over this forum. Now you know. It is not impossible... google 'generic imei' and look at the dozens of ways people have had success and failure trying to remedy it. There are a ton of threads in the SGS 4G forum alone.
And whether you fix it or get a new phone... make a back up of your efs folder FIRST thing along with a nandroid back up. It will save your ass if this ever happens again.

htaak said:
I had the same issue with my phone, it just wouldn't stay on Network, and the SIM would go back and forth from being recognized or not. I flashed back to stock and it still didn't work. The ten minute battery pull was suggested in another thread and a few people swear it works. Mine played up before this was suggested so I never tried it.
I had the same thing happen with my wifes phone and all I could link it to was the Kj6 modem...see link below. I reflashed the whole ROM and it came back.
With my phone I just called T-Mo and told them that since I upgraded to 2.3.6 via Kies that my phone wasn't working properly (Technically true, but a little stretch). I flashed Bhundvens 1click to stock, factory reset, etc...etc... then paid $20 and got a replacement phone via UPS in about 4 days.
I not saying you are having the same problem as I did, but it sounds very similar.
As a side note, the replacement SGS4G (refurb) they sent me absolutely blows my original handset out of the water when it comes to signal strength. I get solid 4G speeds of 5MB+ in my house, where before I only got patchy edge. I was amazed at the huge difference in performance between two supposedly identical handsets.
I hope you can get this remedied without an exchange, but you should be able to get a new one for $20 as a last resort.
Some links on the subject...
http://forum.xda-developers.com/showthread.php?t=1338929
http://forum.xda-developers.com/showthread.php?t=1147705
Click to expand...
Click to collapse
Thank you again Hopfully it works. If it doesn't i'll just give the phone away lol. I didn't pay for it. My friend didn't want it so he just gave it to me.

lumin30 said:
Back ups are suggested all over this forum. Now you know. It is not impossible... google 'generic imei' and look at the dozens of ways people have had success and failure trying to remedy it. There are a ton of threads in the SGS 4G forum alone.
And whether you fix it or get a new phone... make a back up of your efs folder FIRST thing along with a nandroid back up. It will save your ass if this ever happens again.
Click to expand...
Click to collapse
Atleast i managed to Flash and root the phone with out failing nor bricking the phone. Even though it was my 1st time. Majority of new comers get there things bricked. But anywho yes, ill always make back ups for now on.

Still having a problem, anymore ideas anyone??
Sent from my SGH-T959V using XDA App

Maybe download GPS aids from the market. It has a "hard reset" option. Not sure it will help but worth a try
Sent from my SGH-T959V using xda premium

i'll give this a try hopefully it works

JB 4.1.1 Won't connect to tmobile towers

It updated OTA on it's own and was working last night. This morning I looked at my phone and it was connected. I moved it and it lost signal and hasn't gotten it since. I can't force it to connect, will get roaming but roaming in this area is emergency only.

AtomicPC said:
It updated OTA on it's own and was working last night. This morning I looked at my phone and it was connected. I moved it and it lost signal and hasn't gotten it since. I can't force it to connect, will get roaming but roaming in this area is emergency only.
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Slight update, no APN settings are on here, won't save when I try to add them. Well it saves but then it still shows none.

Its busted, reflash
Sent from my Nexus S using xda premium

xsteven77x said:
Its busted, reflash
Sent from my Nexus S using xda premium
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Click to collapse
Just did that. Still nothing.

Ok I've flashed 4.0.4 then CWM to 4.1.1 and nothing. Flashed 4.0.4 and nothing then flashed GB on it and nothing. I'm out of ideas.

Maybe you didn't save properly? Don't press back when done inputting everything, but press menu>save.

If that doesn't work, there's a remote possibility it's a problem with the SIM card. You might want to go to your carrier store and ask for a new one; in my experience this is usually free. Other than that, if flashing a whole new ROM doesn't fix it, I have a hard time understanding how it could be anything other than a hardware issue.

zorak950 said:
If that doesn't work, there's a remote possibility it's a problem with the SIM card. You might want to go to your carrier store and ask for a new one; in my experience this is usually free. Other than that, if flashing a whole new ROM doesn't fix it, I have a hard time understanding how it could be anything other than a hardware issue.
Click to expand...
Click to collapse
It was the sim card. I wished I would have thought of that before I wiped everything though. Oh well I got a clean install and learned a lesson. Never skip step 3...

No connection other than wifi, need help

Ok so first a little back ground... I have an at&t skyrocket, rooted and unlocked running gb on the t-mobile network. I have also flashed the blaze radio and it was working great. All of a sudden last night I have no Internet unless I am on wifi. I have good signal strength, batt is charged, tried several areas, wife's stock blaze phone is working perfectly so it's not the network. I noticed yesterday I started having issues after a spam email was open while I was trying to delete it. After that I had several missed texts,mms not working. I down loaded 2 anti viruses and neither came up with anything. I don't want to wipe the phone unless it's my last option, is there anyway to tell if my internet connection is being blocked? Maybe that spam email has hijacked my connection? When I check the widget I have for network, it's green and shows Tmobile 4g, is there anyway to tell if I do have network connectivity and it's just blocked?
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

waxworkz said:
Ok so first a little back ground... I have an at&t skyrocket, rooted and unlocked running gb on the t-mobile network. I have also flashed the blaze radio and it was working great. All of a sudden last night I have no Internet unless I am on wifi. I have good signal strength, batt is charged, tried several areas, wife's stock blaze phone is working perfectly so it's not the network. I noticed yesterday I started having issues after a spam email was open while I was trying to delete it. After that I had several missed texts,mms not working. I down loaded 2 anti viruses and neither came up with anything. I don't want to wipe the phone unless it's my last option, is there anyway to tell if my internet connection is being blocked? Maybe that spam email has hijacked my connection? When I check the widget I have for network, it's green and shows Tmobile 4g, is there anyway to tell if I do have network connectivity and it's just blocked?
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Click to collapse
I am assuming that you have already tried shutting the phone all the way down, letting it set for a minute then starting it back up?

Yes I have, pulled batt, let sit about 5 mins reassembled and nothing.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

waxworkz said:
Yes I have, pulled batt, let sit about 5 mins reassembled and nothing.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Click to collapse
You might want to take a look at your APN settings and make sure nothing malicious has messed around with them.
Mine quit working one time and I bout pulled my hair out trying to figure out what was going on. As it turns out, something had changed my APN to use a proxy server. Once I removed that one setting from the APN it started working again.

hitekredneck said:
You might want to take a look at your APN settings and make sure nothing malicious has messed around with them.
Mine quit working one time and I bout pulled my hair out trying to figure out what was going on. As it turns out, something had changed my APN to use a proxy server. Once I removed that one setting from the APN it started working again.
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Will do right now. Thank you
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Unfortunately that is not the case with me.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

waxworkz said:
Unfortunately that is not the case with me.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2
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Click to collapse
You can always try an "in place" flash of the ROM that your are currently running. Simply flash it with only cache and dalvik cache wipes and see if that clears up the problem. If you have heavily modified your setup you will lose the mods, but that should fix the problem. I don't really think that the spam email you received, has anything to do with the problem you are experiencing. I am not a big believer in coincidence but this is an exception. I think it was just the luck of the draw that it started acting up after you received the spam email. I could be wrong, but in either case the in place flash should clear up the problem.

hitekredneck said:
You can always try an "in place" flash of the ROM that your are currently running. Simply flash it with only cache and dalvik cache wipes and see if that clears up the problem. If you have heavily modified your setup you will lose the mods, but that should fix the problem. I don't really think that the spam email you received, has anything to do with the problem you are experiencing. I am not a big believer in coincidence but this is an exception. I think it was just the luck of the draw that it started acting up after you received the spam email. I could be wrong, but in either case the in place flash should clear up the problem.
Click to expand...
Click to collapse
Thank you for the direction. I didn't end up doing this, I re flashed the blaze radio and that seems to have done something. I don't know what the issue was but seems to be ok for now. Hopefully it doesn't start happening again.
Sent from my SAMSUNG-SGH-I727 using Tapatalk 2

Mobile Data Connection Dropping

I have installed ViperOne and Clean Rom and I have the same problem with both. After a while of inactivity my data will just quit working. The icon will still be there but the phone won't connect at all. I have to place it into airplane mode to fix this. And just fyi sleep mode is off and power saver is off. It's just like my phone forgets how to connect after a little while. I had ZERO problems when I was stock. And now this.....please help me!
Sent from my HTC6525LVW using Tapatalk

Oh and I have also done factory resets between each Rom install so everything was clean when it was flashed.
Sent from my HTC6525LVW using Tapatalk

tm1618 said:
Oh and I have also done factory resets between each Rom install so everything was clean when it was flashed.
Sent from my HTC6525LVW using Tapatalk
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Did you figure this out? i'm having the same damn issue.

bnsrowe said:
Did you figure this out? i'm having the same damn issue.
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Click to collapse
Nope. I've returned completely to stock and am going to get a new SIM card tomorrow. If that doesn't work I'm going to get a warranty replacement.

bnsrowe said:
Did you figure this out? i'm having the same damn issue.
Click to expand...
Click to collapse
Read santod's post here
http://forum.xda-developers.com/showthread.php?p=55130095
then respond in this thread. scrosler doesn't want us to discuss this issue in his rom thread. This is the perfect place to continue.
I can't wait to try it because I have the same issue on my travels but will have to wait until I get home and to my PC. Would love to read more success stories...
In essence santod says: flash the stock recovery, do a factory reset from hboot to restore the VZW radios, then restore your setup. Should work with most sense roms, but so far the people solving this issue all flashed a RUU.
Anybody have a link handy for the stock recovery?

i've ruu'd back to "stock" and am trying this now.

berndblb said:
Read santod's post here
http://forum.xda-developers.com/showthread.php?p=55130095
then respond in this thread. scrosler doesn't want us to discuss this issue in his rom thread. This is the perfect place to continue.
I can't wait to try it because I have the same issue on my travels but will have to wait until I get home and to my PC. Would love to read more success stories...
In essence santod says: flash the stock recovery, do a factory reset from hboot to restore the VZW radios, then restore your setup. Should work with most sense roms, but so far the people solving this issue all flashed a RUU.
Anybody have a link handy for the stock recovery?
Click to expand...
Click to collapse
Stock Recovery: Link :good:
You can find that and my firmware links in this thread.

Did the stock recovery so far so good but I won't know for sure until I get out and about today. It seems I didn't have the issue until it dropped from 4g to 3g back to 4g and have a decent 4g signal at home.

For now it seems as though that did the trick. I didn't loose data all day, we will see though.

Well it didn't work, I had to toggle airplane mode several times today to get data to work again.

bnsrowe said:
Well it didn't work, I had to toggle airplane mode several times today to get data to work again.
Click to expand...
Click to collapse
Are you going to RUU?
That's what I plan to do tomorrow. It's getting to be extremely annoying. Not even toggling airplane mode or mobile data on/off does anything. I have to reboot every time.

berndblb said:
Are you going to RUU?
That's what I plan to do tomorrow. It's getting to be extremely annoying. Not even toggling airplane mode or mobile data on/off does anything. I have to reboot every time.
Click to expand...
Click to collapse
RUU'd, stock recovery, flashed radios, and new SIM. I've tried everything. It seems as though if I'm in a low signal area where I go from 4g to 3g to Wi-Fi it happens. It's like there's a handoff problem between all the radios. Will show 4 bars of 4g but under mobile data in settings says disconnected.

Mine just started doing this. I'll RUU when I get back home to Texas.

bnsrowe said:
RUU'd, stock recovery, flashed radios, and new SIM. I've tried everything. It seems as though if I'm in a low signal area where I go from 4g to 3g to Wi-Fi it happens. It's like there's a handoff problem between all the radios. Will show 4 bars of 4g but under mobile data in settings says disconnected.
Click to expand...
Click to collapse
May want to try this

kc6wke said:
May want to try this
Click to expand...
Click to collapse
Trying this now, we'll see what happens.

bnsrowe said:
Trying this now, we'll see what happens.
Click to expand...
Click to collapse
I can confirm that it did fixed the issue, I didn't loose data all day no matter if wifi, 4g,3g, or 1x,

Same here. In the last 5 days I travelled in 3 states, large cities and very rural areas where it dropped to 3G or 1x - it never had problems to return to 4G (or getting a data connection at all).
This fix proves what's so great about these forums! I probably would have ditched a phone I totally love in all other aspects due to a problem that OEM customer service would not even acknowledge existed!