I was on cm13 and my signal suddenly disappeared. I flashed stock but it did not get fixed. Imei Number is visible.
Please help,.
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aaashraffaa said:
bump
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Have you tried flashing a different modem/radio to see if the problem for you is radio dependent?
yes
aaashraffaa said:
yes
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Who is your carrier and what country are you in?
Try this:
Remove the Sim Card from your device while it is powered on and running and then put your Sim Card back in.
Install LTE Discovery from the Play Store and look and see if your device is pulling in any signal.
Let me know what happens.
Sent from my Nexus 6 using XDA-Developers mobile app
Related
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
castro08 said:
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
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This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
castro08 said:
Im using T-Mobile and yesterday I got that empty service bars on the notification and it could only make emergency calls. Happens from time to time didn't think anything of it but I left the house and I'm still not getting any service. I was running paranoid android June 6 build so I tried switching ROMs and kernels but still no signal . of course I took out sim and rebooted the phone. I even put my sim on another phone and it work got signal and put there sim in my phone and wouldn't get any signal either. I ran out of options any help is greatly appreciated
Sent from my Nexus 4 using xda app-developers app
Sent from my Nexus 4 using xda app-developers app
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do you have your phone info set to lte only?
How do you check that? *#*#4636#*#* ? If so that's on wcda prefer
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Exodian said:
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
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Did your happen when you first got it or after you had it for awhile? And what's the RMA process
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The periodic loss of signal was there since day. I still have it on my new one. Others do as well, but one day it went out and never came back on. I believe it was a different issue than just random signal loss. Google said hardware failed in it. You have to contact Google to start an RMA. I'm also not implying that your signal won't come back on at some time either. Personally I would flash everything back to stock. Go to a t mobile store and get a new Sim card and if no signal still then contact Google
Sent from my Nexus 4 using xda premium
Under settings, then data, then mobile networks, then to network operators.
let it search, even if it doesn't find anything or errors.
Then click choose automatically.
If you frequently travel out of 3g/H areas, you need that checked or the phone won't roam from tower to tower. you will get no signal.
Also, if that don't work, you can try clicking on a network it finds, and let it register, your signal may come back.
This is a common problem with those that don't live in big cities or near full strength 3g/h areas.
The phone doesn't handle tower handoffs well. Crappy LG modems.
Exodian said:
The periodic loss of signal was there since day. I still have it on my new one. Others do as well, but one day it went out and never came back on. I believe it was a different issue than just random signal loss. Google said hardware failed in it. You have to contact Google to start an RMA. I'm also not implying that your signal won't come back on at some time either. Personally I would flash everything back to stock. Go to a t mobile store and get a new Sim card and if no signal still then contact Google
Sent from my Nexus 4 using xda premium
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Thank for your help that what I'll have to do only problem is I traded an s3 for this phone on CL so if it hardware I think I'm SOL but thanks for your help
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kthejoker20 said:
Under settings, then data, then mobile networks, then to network operators.
let it search, even if it doesn't find anything or errors.
Then click choose automatically.
If you frequently travel out of 3g/H areas, you need that checked or the phone won't roam from tower to tower. you will get no signal.
Also, if that don't work, you can try clicking on a network it finds, and let it register, your signal may come back.
This is a common problem with those that don't live in big cities or near full strength 3g/h areas.
The phone doesn't handle tower handoffs well. Crappy LG modems.
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I tried this and when I click T-Mobile or att it says this sim card can not pick up a connection but the sim card works on other T-Mobile phones
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castro08 said:
I tried this and when I click T-Mobile or att it says this sim card can not pick up a connection but the sim card works on other T-Mobile phones
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Try getting a new Sim from t mobile and reflashing the radio
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Exodian said:
Try getting a new Sim from t mobile and reflashing the radio
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Thanks will do but why would my sim card work on other phones and other sims not work on mine
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castro08 said:
Thanks will do but why would my sim card work on other phones and other sims not work on mine
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Most likely wouldn't but it would be one more "possible" problem eliminated.
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Exodian said:
This happened on my first nexus 4. Nothing fixed it. Nothing. Hopefully your situation is different. If nothing works, flash back to stock and start the RMA process. Google said it was a hardware failure with mine by the way.
Sent from my Nexus 4 using xda premium
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Click to collapse
I'm currently going through the RMA process over virtually the exact same issue. However, I've been running franco's nightlies lately and up until he restored the HSIC/wifi stuff to stock in r154 I was actually experiencing less data drops and rapid tower swapping (constantly going from 3g to H and back rendering consistent data inoperable). *shrug* I feel as if it's something in the hardware on the cusp of failing because sometimes it does it more and sometimes it does it less. It's rather weird. I'm also on T-mobile towers through an MVNO (Straight Talk).
I just cancelled and switched to ATT go phone.
I have RMA'd 2 devices, tried multpie new simcards, relflashed, tried new radios, and nothing worked.
It no longer switches from 3g to H on ATT network.
It stays in H constantly.
Also, no more signal drops or loss of signal.
I have 100% signal all the time now.
The data is a little more expensive, but worth it for the coverage so far.
It's not your phone, it's the tmobile network.
I have an unrooted ATT S4 and an unrooted Note 3 on T Mobile which is unlocked that I use on ATT.
With the ATT simcard inside the S4 I only receive HSPA and no LTE service, with the same simcard in the Note 3 I get LTE service ( according to network signal info app ). I tried checking my APN settings on the S4 and it looks okay, infact I created another just to make sure.
If I try the *#*#4636 etc etc command the S4 shows WCDMA preferred only. It does not allow me to change to anything else. However, if I put another ATT simcard in the S4 LTE works, anyone care to explain what is going on ? This only started when I first went to review the previously mentioned network radio mode menu command.
Thanks.
I would think you have a bad SIM card. Very strange it would work in one and not the other.
Sent from my SAMSUNG-SM-N900A using Tapatalk 5
You may have to factory reset the s4
Any luck on that yet? I'm very curious what the problem is with it.
Sent from my SAMSUNG-SM-N900A using Tapatalk 5
agent929 said:
Any luck on that yet? I'm very curious what the problem is with it.
Sent from my SAMSUNG-SM-N900A using Tapatalk 5
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No luck, the unit would only select WCDMA preferred with my ATT sim card inside of it. I did factory reset multiple times to no avail.
Limeybastard said:
No luck, the unit would only select WCDMA preferred with my ATT sim card inside of it. I did factory reset multiple times to no avail.
Click to expand...
Click to collapse
Did you ever try a brand new SIM card?
Sent from my SAMSUNG-SGH-I467 using Tapatalk 4
agent929 said:
Did you ever try a brand new SIM card?
Sent from my SAMSUNG-SGH-I467 using Tapatalk 4
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No sir, I did not. I have sold the S4 as I bought a note 3 earlier this month. The new owner tested it and he got LTE!
Limeybastard said:
No sir, I did not. I have sold the S4 as I bought a note 3 earlier this month. The new owner tested it and he got LTE!
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Im gonna go with an issue with the sim...how about you?
Sent from my SAMSUNG-SGH-I467 using Tapatalk 4
agent929 said:
Im gonna go with an issue with the sim...how about you?
Sent from my SAMSUNG-SGH-I467 using Tapatalk 4
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Can't be anything else can it ? I agree.
When the sim was out the S4 would default to its stock radio. I believe it was something like gsm lte auto prn or something.
Sent from my SM-N900T using Tapatalk
I had the same issue..it's your sim card....I went to my Fido store...talked nicely to the guy at the counter and he gave me a LTE sim card which he normally charges $10 for....problem solved...if your phone supports the right lte band and the network operates on the same band...it's always the sim card
bimjunk said:
I had the same issue..it's your sim card....I went to my Fido store...talked nicely to the guy at the counter and he gave me a LTE sim card which he normally charges $10 for....problem solved...if your phone supports the right lte band and the network operates on the same band...it's always the sim card
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bs.. i have tmobile and using it on att .. It is not alwlays the sim card. I had to change the apn settings and also go into the menu and enable lte.. it was set to wcdma as max by default.
My s4 has recently decided at random times it will loss it signal so I have to put it on plane mode and back off again to get my signal back anyone else had this or knows what could sort this problem?
Also today my phone kept sayin pleaee insert sim card and id have to restart my phone to get it to work again strange. Again anyone else had this and knows how I can sort it please?
Sent from my GT-I9505 using Tapatalk
eddie500_1 said:
My s4 has recently decided at random times it will loss it signal so I have to put it on plane mode and back off again to get my signal back anyone else had this or knows what could sort this problem?
Also today my phone kept sayin pleaee insert sim card and id have to restart my phone to get it to work again strange. Again anyone else had this and knows how I can sort it please?
Sent from my GT-I9505 using Tapatalk
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Click to collapse
With the firmware is
You have you anything on the phone
mods,custom Roms
I have 4.3 I think
No custom roms or anything like that
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eddie500_1 said:
I have 4.3 I think
No custom roms or anything like that
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Click to collapse
Go to APPS - SETTINGS - MORE - ABOUT DEVICE and make us a beaty screenshot :fingers-crossed:
Iv set it as a attachment
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Its just done it again sim card removed reboot
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Just received a new sim. Goin to try it over xmas and if that doesnt solve the problem then its gonna be a firmware problem so the phone will have to sent away
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im currently running sgh i337 on nb1 .. If I were to odin it back to amdl will I brick the phone ..
all stock roms ..
You can't Odin back, it'll fail. It won't brick but it won't work.
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
You can't Odin back, it'll fail. It won't brick but it won't work.
Sent from my Nexus 5 using XDA Free mobile app
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thanks for the info .. I have a weird issue .. I unlocked the phone to use on tmobile ... it was working fine for a week but all the sudden I get no signal and under settings in bout device under status it says network unknown and not in service .. but I still have my imei and serial and everything in my efs folder .. got any idea what might be wrong
@moe said:
thanks for the info .. I have a weird issue .. I unlocked the phone to use on tmobile ... it was working fine for a week but all the sudden I get no signal and under settings in bout device under status it says network unknown and not in service .. but I still have my imei and serial and everything in my efs folder .. got any idea what might be wrong
Click to expand...
Click to collapse
Check to see if your apn is set up correctly. Settings, wireless and networks, more, mobile networks, access point names
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
Check to see if your apn is set up correctly. Settings, wireless and networks, more, mobile networks, access point names
Sent from my Nexus 5 using XDA Free mobile app
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thx for.the advice but I triple checked everything
@moe said:
thx for.the advice but I triple checked everything
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Might be a sim card problem. You've probably taken it out and put it back in? You might have to get a new one
Sent from my Nexus 5 using XDA Free mobile app
jd1639 said:
Might be a sim card problem. You've probably taken it out and put it back in? You might have to get a new one
Sent from my Nexus 5 using XDA Free mobile app
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I was thinking maybe the sim. card. tray .. I should be gettn the new one today .. ..do u know if the wifi antenna and the gsm antenna r on the same relay
@moe said:
I was thinking maybe the sim. card. tray .. I should be gettn the new one today .. ..do u know if the wifi antenna and the gsm antenna r on the same relay
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That I don't know.
Sent from my Nexus 5 using XDA Free mobile app
Please help!!! I can't get a mobile signal for the life of me. I get wifi and LTE, but no 2G or 3G??? I've factory resetted, flashed modems only, tried different roms. Everything. I'm starting to think it might be the hardware. If anyone has any knowledge, please share. As of now I'm back on NAE baseband since the NG2 upgrade started all this. Or maybe it was mobile odin. IDK it was one of those.
I would rather have lte than 2 or 3g. You could always change the settings for mobile networks to only pick up 3g and see if that works.
Sent from my SPH-L720 using XDA Free mobile app
But I cannot make a call at all. There is no 3G period. Tried everything
Have you tried removing the sim card and powering the phone up without it?
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beezie42 said:
Have you tried removing the sim card and powering the phone up without it?
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And what is that supposed to do?
SB03 said:
And what is that supposed to do?
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Whenever I do this on my phone it puts it into cdma mode.
Will also help rule out what's wrong
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beezie42 said:
Whenever I do this on my phone it puts it into cdma mode.
Will also help rule out what's wrong
Sent from my SPH-L720 using Tapatalk
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That didn't work. But I fixed it using ##72786#