I have no idea how this happened, but here goes explaining it. I was running latest Cataclysm Rom w/ latest faux kernel. I was browsing the web through LTE when I wanted to SMS someone. After a few minutes the SMS failed. Then a few minutes later I got no signal. Restarted, Got LTE although under service state it says out of service and unknown mobile network type. After 20 seconds Got no signal, this happens every time now when I restart. Flashing back to factory settings didn't fix anything. I am now very bummed out. I don't think it's the carrier (aio) since if there were a service outage anyone with AT&T would have problems too. There's also the possibility that the magnet on the name tag to my work shirt could have very well played a part, although I doubt it since I don't hold the phone that high. I contacted Google on their support page, but I probably should look into LG's warranty, which likely won't cover it. So....
How can I fix my radio?
If I can't fix it within my means, how can I get it fixed?
Are you able to add an APN?
Your cache.img could be corrupt. Try and flash the stock cache.img from the stock image.
Synyster06Gates said:
Are you able to add an APN?
Your cache.img could be corrupt. Try and flash the stock cache.img from the stock image.
Click to expand...
Click to collapse
Hmm. Here's the weird thing though - when I first got my phone to a carrier I would have service, but no internet access when I didn't add an APN. In the phone's state that it was in, I already flashed the APN like normal and worked. But now, it has no signal to work with, so even adding an APN would be pointless if it isn't connecting to -any- network.
I ran wugfresh's nexus root toolkit to run the complete stock process. I even re-locked the bootloader in case I have to ship it somewhere. Watching the stock flash process, I did see it flash everything without failiure from the official 4.4 stock image, but didn't fix it. I'm starting to think it's a hardware failure, since the radio does the same thing every time I reboot it regardless of what rom, kernel, bootloader, baseband, etc. I throw at it (connects to LTE for a few secs, goes into no signal).
What other options could I do to remedy this?
EDIT - Google has already responded and sounds like they could send me a replacement device, not certain yet but here's hoping.
I'm experiencing this same issue you described in your previous post. I think there's an outage in Northwest Ohio for Aio Wireless, or AT&T altogether. I don't see anything on twitter or google, so I'm not sure if it's just me, or it is affecting many users. I noticed it when I was on a phone call with a family member and the call dropped. When I tried to call back, my signal kept bouncing between LTE to no signal, back to LTE, and no signal. Now it says I don't have anything at all. If I search for mobile networks, it reconnects me to LTE and I can surf the web, run speed tests, but if I try to SMS or call someone, it drops my signal again.
I'm thinking the network is down for voice, but not so much data.
Did you try flashing your carrier's radio?
Team Nexus 5 sucks
Related
Hey guys, I haven't done anything to my phone but all of the sudden, the data and phone signal basically quit working. I have a very hard time getting texts, phone calls etc to go though but it will eventually (usually takes a while or a few tries) and as far as data goes, I basically have no connectivity at all unless I'm on wifi. It says 3g or H every once in a while, but it's really slow and usually doesn't stay for long. I'm running CM9, and like I said before I didn't change anything that I'm aware of that would have caused this problem. It worked fine before, and it just stopped. Ideas? Thanks
iamtheculprit said:
Hey guys, I haven't done anything to my phone but all of the sudden, the data and phone signal basically quit working. I have a very hard time getting texts, phone calls etc to go though but it will eventually (usually takes a while or a few tries) and as far as data goes, I basically have no connectivity at all unless I'm on wifi. It says 3g or H every once in a while, but it's really slow and usually doesn't stay for long. I'm running CM9, and like I said before I didn't change anything that I'm aware of that would have caused this problem. It worked fine before, and it just stopped. Ideas? Thanks
Click to expand...
Click to collapse
have you called your provider? maybe its on their end.
I'm having the same exact problem... it shows my 3g it shows all my bars but instead of the bars being colored or the 3g be in color is gray. Also I cannot get back conectivity until I restart the phone. Does anybody have an idea what this is?
Are you on AT&T? I was not having any problems until a certain point in time, and I didn't change or do anything to incite them. I'm not even getting calls anymore, I'll just get all my texts in a wave every few hours. My data is useless, it won't stream, or load web pages, and my phone is frequently saying "Emergency calls only" when I'm sitting at my freaking house (which normally has full 3g and cell signal and is very fast)
This just started occuring with my 9020a on AT&T the first week of March. I switched SIM cards twice, spent about an hour on the phone with ATT, and sent the device back to Samsung who rolled back the software to 2.3.4 and the Radio to UKE1.
I still have the issue. Samsung says its not them. ATT does nothing. It;s liek the phone just stopped working, started dropped calls, missing calls, and the internet connection sucks. I have an iphone for work through ATT as well and have no issues with signal.
ANy help is appreciated.
Hmm
Make sure you have the right, most up to date settings for APN, and flash original radios. if it still doesn't work, make sure you have the i9020A, which has the at&t 3g antenna, not i9020T which has the T-Mobile antenna, vice versa.
Have you tried other radios for your device (make sure you flash the appropriate ones for your model)? Any signal info under Phone Information when dialing *#*#4636#*#*?
ChemicalD said:
This just started occuring with my 9020a on AT&T the first week of March. I switched SIM cards twice, spent about an hour on the phone with ATT, and sent the device back to Samsung who rolled back the software to 2.3.4 and the Radio to UKE1.
I still have the issue. Samsung says its not them. ATT does nothing. It;s liek the phone just stopped working, started dropped calls, missing calls, and the internet connection sucks. I have an iphone for work through ATT as well and have no issues with signal.
ANy help is appreciated.
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Click to collapse
Sounds like you're having the exact same problem I am having. I switched sim cards, flashed different roms, etc and nothing. (although to be fair, after the new sim, things work better, but still not well) I'm about ready to pop my sim back in my craptivate and just go with that... or buy an iphone off of craigslist.
Billchen0014 said:
Make sure you have the right, most up to date settings for APN, and flash original radios. if it still doesn't work, make sure you have the i9020A, which has the at&t 3g antenna, not i9020T which has the T-Mobile antenna, vice versa.
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Click to collapse
I am 100% sure I have the 9020a, but I don't know anything about APN and flashing radios. I have only ever flashed full roms before, so I wouldn't know where to look for the original radio.
Oogway13 said:
Have you tried other radios for your device (make sure you flash the appropriate ones for your model)? Any signal info under Phone Information when dialing *#*#4636#*#*?
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Click to collapse
I have not tried other radios. The signal info seems solid, sitting at my house, but the 3g is still horridly slow. It taked 15-30 seconds to load a webpage, even a pretty mundane one like google. Messages still come through in waves, and often won't send
About your APN, AT&T should provide you with the proper values to put in under Settings | Wireless & Network | More | Mobile Networks | Access Points Names.
If you are on ICS, they values should populate by themselves.
Can you try flashing other radios and see if you encounter the same problem:
http://forum.xda-developers.com/showthread.php?t=1116884
Make sure you backup your EFS folder (and all data for that matter).
I had similar problems, they were related to turning 3g on/off with a APN widget while the phone had little signal. As soon as started enabling and disabling 3g on the android options everything was back normal.
alexfiorani said:
I had similar problems, they were related to turning 3g on/off with a APN widget while the phone had little signal. As soon as started enabling and disabling 3g on the android options everything was back normal.
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Click to collapse
the data works most of the time now it's just retardedly slow. I can't stream music even on low quality, nor can I watch youtube without leaving it for 5 minutes to buffer,pages take forever to load, and I was downloading a 6 meg app and it took 20 minutes to download whenI was leaving the phone alone and not moving. I got really sick of trying to fix it and finally gave it to geeksquad to send in to get replaced. sigh.
So...
I am running my phone rooted, but mostly stock (just some removals) with ROM 1.53.401.2 and he 0.15.3150S.19_10.31501S.06L baseband.
Its been perfoming fine ever since so I never bothered to upgrade to a custom ROM or the newer basebands.
Its an EU unbranded phone. As of tonight, with nothing special done to it it seems to have lost all cell reception. All I get is An x where the 5 bars are. Funnily, when I turn of my WiFi router and select wireless internet, I can get online and download data through the cellular inetnet connection. But not a single call or SMS will go out.
I have moved to like every location in my apartmant and outside and nowhere I can even get a single bar of reception or even a call through.
Does anyone have any idea WTH this could be, what could have caused it? Any ideas on where to prod and poke for a solution?
Mine did that for the first day after I put a non-stock ROM on it...hasn't done it since. I took the piece that covers the SIM card off and popped it back on. I don't know what causes it though.
psych0t1c said:
So...
I am running my phone rooted, but mostly stock (just some removals) with ROM 1.53.401.2 and he 0.15.3150S.19_10.31501S.06L baseband.
Its been perfoming fine ever since so I never bothered to upgrade to a custom ROM or the newer basebands.
Its an EU unbranded phone. As of tonight, with nothing special done to it it seems to have lost all cell reception. All I get is An x where the 5 bars are. Funnily, when I turn of my WiFi router and select wireless internet, I can get online and download data through the cellular inetnet connection. But not a single call or SMS will go out.
I have moved to like every location in my apartmant and outside and nowhere I can even get a single bar of reception or even a call through.
Does anyone have any idea WTH this could be, what could have caused it? Any ideas on where to prod and poke for a solution?
Click to expand...
Click to collapse
Try this
http://forum.xda-developers.com/showpost.php?p=26921246&postcount=102
I've been trying to troubleshoot this problem for the past 3 days or so. In a nutshell, I'm on AllainceRom (which I have been since released) and get constant 4G signal. Wake up, head to work and notice no signal at all. I check and my mobile data was shut off, so connected it. It gets a connection...3G. Turn on/off airplane mode and still 3G. Borrow friends sim card, boot it up and it's 4G. Figuring it's the sim card, I buy a new one. Call Verizon to activate it, BAMM 4G is back. Within 2 minutes after the phone call, it loses signal, then kicks back on, 3G again. I would hit airplane mode on/off and 4G would pop out and all of a sudden it would go back to showing nothing,then revert to 3G again. Any ideas of what can cause this? I'm baffled. I even downloaded the MF1 versus ML1 and it still shows 3G. My download speeds, a blazing 2 megs. Almost feel like I've been throttled or something for some reason.
Has your phone been working fine before and this just started happening over the past few days? Also do you only lose 4G in certain areas?
I know that it is recommended to flash the ML1 modem on any 4.3 based ROM because of potential 4G issues.
This might sound odd, but I think somehow they are throttling me. I'm on the grandfathered unlimited plan. What's odd is that I can take an old sim card (from Thunderbolt), basically cut it to the same size as my S3, reboot and 4G is constant (this phone is part of my dummy line so limited to 2gigs per month). Take out that card, put in new one, it boots up and has like 4 bars while searching for signal, then drops to like 3 and connects to 3G again constant.
4G has been constant here for the past 2 years, Verizon tech support confirmed no outages. My wife and son have unlimited as well, but iphone 4's with 3G coverage. Thinking my unlimited 4G is getting knocked down for some reason.
I tried a new rom, Clean Rom and same results with signal quality. Just odd it happening all of a sudden with no changes.
Also, with my thunderbolt 4G sim card, mobile network type was listed as LTE. With the brand new sim card they activated, it's showing "CDMA -eHRPD", as it was showing with my old card.
BattsNotIncld said:
Has your phone been working fine before and this just started happening over the past few days? Also do you only lose 4G in certain areas?
I know that it is recommended to flash the ML1 modem on any 4.3 based ROM because of potential 4G issues.
Click to expand...
Click to collapse
snafufx said:
This might sound odd, but I think somehow they are throttling me. I'm on the grandfathered unlimited plan. What's odd is that I can take an old sim card (from Thunderbolt), basically cut it to the same size as my S3, reboot and 4G is constant (this phone is part of my dummy line so limited to 2gigs per month). Take out that card, put in new one, it boots up and has like 4 bars while searching for signal, then drops to like 3 and connects to 3G again constant.
4G has been constant here for the past 2 years, Verizon tech support confirmed no outages. My wife and son have unlimited as well, but iphone 4's with 3G coverage. Thinking my unlimited 4G is getting knocked down for some reason.
I tried a new rom, Clean Rom and same results with signal quality. Just odd it happening all of a sudden with no changes.
Click to expand...
Click to collapse
I doubt you are getting throttled. Unless you are using up 100+ GB a month constantly. If that was the case you can call tech support and ask if you are. I'm pretty sure they would have to tell you if they were.
Was there something specific you did to your phone before this started happening? Have you tried different ROMs or re-flashing Alliance?
If you've exhausted all options I think something is borked and you need to reprovision. To do this you would need to ODIN to a stock 4.1.2 base and enter the reprovision code into the dialer (*2767*3855#). This will wipe your internal data so I would back up anything you need first. Once you do that you can re-root and flash a custom recovery then flash back to whatever you want.
Just make sure you don't take the 4.3 OTA if you return to stock unless you want to re-lock your bootloader.
That's the odd thing, nothing was changed prior to this switching to 3G, like it happened all of a sudden. I checked my usage and I'm at 19 gigs this month (yeah I tether a lot).
I tried beanstalk rom (4.4.2) and something odd happened. In preferred network type, under CDMA+LTE/EVDO I would get 3G. If I switch it to LTE/GSM/WCDMA 4G would pop up, but no mobile data so unable to make phone calls. With this rom, I would insert my old thunderbolt sim card and 4G all day long again with no issues.
I guess the only option would be to revert to stock and start all over in hopes it'll switch back. I was hoping it was just the icons jacked up, but at 3G my d/l speed was 2 megs, at 4G it would hit 12-14 megs.
BattsNotIncld said:
I doubt you are getting throttled. Unless you are using up 100+ GB a month constantly. If that was the case you can call tech support and ask if you are. I'm pretty sure they would have to tell you if they were.
Was there something specific you did to your phone before this started happening? Have you tried different ROMs or re-flashing Alliance?
If you've exhausted all options I think something is borked and you need to reprovision. To do this you would need to ODIN to a stock 4.1.2 base and enter the reprovision code into the dialer (*2767*3855#). This will wipe your internal data so I would back up anything you need first. Once you do that you can re-root and flash a custom recovery then flash back to whatever you want.
Just make sure you don't take the 4.3 OTA if you return to stock unless you want to re-lock your bootloader.
Click to expand...
Click to collapse
If other SIM cards are working correctly, it can't be anything wrong with the phone. I would either go to Verizon and keep asking for new SIM cards until you get one that works, or try to reprovision like I explained earlier.
Thanks for the suggestions, I'm rocking stock 4.0.4. now and still only have 3G service. Guess I'll just keep it like this and hit up the Verizon store and have them figure it out since it's stocked back out.
BattsNotIncld said:
If other SIM cards are working correctly, it can't be anything wrong with the phone. I would either go to Verizon and keep asking for new SIM cards until you get one that works, or try to reprovision like I explained earlier.
Click to expand...
Click to collapse
I was experiencing similar issues as you this morning. After an hour of the nice lady at tier 1 tech support telling me to erase everything on my phone and that it was probably bc I was talking to her on the phone while trying to fix it I reached a resolution upon calling back. I was sent to a higher tier tech support and they told me that my data was being throttled and it was directly related to my high data usage.
Confused I asked her how that was possible bc they aren't suppose to throttle LTE. She said there is a problem with their system and instead of only throttling 3G, it was now throttling LTE data. She explained this is a nationwide issue and that some people she has talked to have been experiencing trouble with this issue since March 23rd!!
Similar to you I tried another phone, my nexus galaxy only to experience the same problem. The only thing that worked for me was switching my network mode from LTE/CDMA to Global. I could then tether Netflix and use the data connection without being impeded. However, certain functions like my email (gmail and yahoo) and verizon cloud services would say network error or network communication error.
Strangely tonight my phone seems to be back in working order, I'm not sure if its just because there is no network congestion so I'm not being throttled and it will return or if the issue has been actually fixed.
Now that I think about it, it's possible the tech was wrong and it's a CDMA to lte handshake issue they are having which would explain why global mode would work? It maybe that they upgraded the towers to lte advanced in my area causing these types of issues but hard to confirm any of this with verizon being so tight lipped about what areas have lte advanced.
Replied to your post, I'll update once I get back from Verizon.
Samutd45 said:
I was experiencing similar issues as you this morning. After an hour of the nice lady at tier 1 tech support telling me to erase everything on my phone and that it was probably bc I was talking to her on the phone while trying to fix it I reached a resolution upon calling back. I was sent to a higher tier tech support and they told me that my data was being throttled and it was directly related to my high data usage.
Confused I asked her how that was possible bc they aren't suppose to throttle LTE. She said there is a problem with their system and instead of only throttling 3G, it was now throttling LTE data. She explained this is a nationwide issue and that some people she has talked to have been experiencing trouble with this issue since March 23rd!!
Similar to you I tried another phone, my nexus galaxy only to experience the same problem. The only thing that worked for me was switching my network mode from LTE/CDMA to Global. I could then tether Netflix and use the data connection without being impeded. However, certain functions like my email (gmail and yahoo) and verizon cloud services would say network error or network communication error.
Strangely tonight my phone seems to be back in working order, I'm not sure if its just because there is no network congestion so I'm not being throttled and it will return or if the issue has been actually fixed.
Now that I think about it, it's possible the tech was wrong and it's a CDMA to lte handshake issue they are having which would explain why global mode would work? It maybe that they upgraded the towers to lte advanced in my area causing these types of issues but hard to confirm any of this with verizon being so tight lipped about what areas have lte advanced.
Click to expand...
Click to collapse
i have to reboot in order for the 4g data to work again but it only stays on for about a minute and then it stops working again. everything else on the phone works ( text, voice, wifi etc...) I read somewhere that flashing different radios might fix it but im not sure about that. anyone else experience this and have a work around? i am currently on baseband i535VRLG1
Thanks In advance
i called Verizon and they said it may be the sim card thats damaged. if that were the case wouldnt voice and text fail as well?
frunas80 said:
i have to reboot in order for the 4g data to work again but it only stays on for about a minute and then it stops working again. everything else on the phone works ( text, voice, wifi etc...) I read somewhere that flashing different radios might fix it but im not sure about that. anyone else experience this and have a work around? i am currently on baseband i535VRLG1
Thanks In advance
i called Verizon and they said it may be the sim card thats damaged. if that were the case wouldnt voice and text fail as well?
Click to expand...
Click to collapse
I'm having the same issues recently. I've always gotten a 4G signal at my house (albeit not the strongest one) but lately, my phone will not hold on to the connection. When coming off of wifi, my phone will not acquire a data connection at all most of the time. I can still send/receive texts and calls but there is no 4G or 3G icon, no MMS, and no data. I have to toggle the radios on/off, or change from CDMA/LTE to Global (or GSM) and back, put in airplane mode, or restart.....there is no guarantee any one of those steps will work. Sometimes I have to do it repeatedly until I get my data connection back but it is only temporary.
I'm on the i535VRBMF1 baseband and updated to the ML1 modem to try and resolve but to no avail. I have replaced my sim card (as I initially though that was the issue) but it has not helped either.
The only thing I can think of is that my PRL may have been updated (it is currently 15310) and it's causing issues with the towers in my area.
I just got back from Hawaii and was also in San Diego for a few days and had absolutely no issues. It seems to only be an issue now when I'm at my house which makes me think it is something VZW network related and nothing to do with my phone per say. It's really driving me nuts though.
BTW, I'm in Southern California (Irvine).
I seemed to have fixed the issue by reverting the baseband back to vrlf2. I had to switch from global to 4g/LTE because I vegan to inch roaming charges lol. Verizon credited me and no dropped 4g signal. So I'm happy.
frunas80 said:
I seemed to have fixed the issue by reverting the baseband back to vrlf2. I had to switch from global to 4g/LTE because I vegan to inch roaming charges lol. Verizon credited me and no dropped 4g signal. So I'm happy.
Click to expand...
Click to collapse
What ROM are you running? I'm just curious what the implications are of running an older baseband (from the ICS days) on a newer ROM/Kernel.
I'm running cleanrom8.1 core edition. Slightly buggy but tolerable.
I was finally able to somewhat resolve my issue so I thought I'd post in case anyone else is experiencing something similar.
By using a few different apps and testing techniques, I was finally able to deduce that my issue had to do with EHRDP hand-off with the towers in the immediate vinicity to my house. I'm not sure what VZW did to them lately but it doesn't appear to be a problem in other locations so it seems like the issue is on their end (and not something to do with my phone).
In any case, it seems that when my 4G connection is weak and EHRDP is detected, it is dropping the connection entirely instead of handing if off to 3G (EVDO). The connection is also never transferred back when a 4G signal is detected either until I reset the connection where there is a moderate 4G signal.
Again, this only seems to be an issue when connected to the towers near my house and doesn't occur when traveling abroad.
To fix this, I have disabled EHRDP by doing the following:
1) Open the dialer and type *#97328640#
2) Select "[2] CDMA"
3) Select "[2] Data"
4) Select "[7] eHRPD e/disable"
5) Select "[2] Disable(*)"
6) Reboot the phone
Now my phone switches between EVDO revA. for 3G (using the native protocols) and LTE rather than relying on the broken eHRDP protocols. This workaround will have to suffice until VZW fixes stuff in my area but at least I don't miss MMS messages anymore.
Hope this helps anyone running into similar situations.
Hello everyone. I was hoping that some of you that are more knowledgeable about this stuff could help me out here. I recently flashed from CM 10.2 to KitKat (4.4.4), which everything went smoothly for the most part. However, I've noticed that my phone constantly has no service. I should probably state that I live in an area with very low service to begin with, but prior to the flash I was able to get at least a bar inside my house. Now, I'm unable to get anything.
The first thing I could think of to check was my settings in the phone. The data is enabled, CDMA Roaming mode is set to automatic, CDMA subscription is set to RUIM / SIM, and the Preferred Network Type was Global. I wasn't familiar with the global setting as I was used to seeing the LTE / CDMA / EvDo options there. So, when I clicked on it, it now gives LTE, 3g, 2g, 1x, and Global as options. I tried changing it to 3g, but the changes would not save that way. The only way I could get them to save was to power off the phone, take the sim card out and put it back in, and then reboot and switch them. Once i pick a new setting (which is now set on 3g), it locks it and I can't change it again without removing sim card.
When I look in About Phone > Status section, I'm seeing the network says searching for service. The mobile network type is unknown. The service state is out of service, and the mobile network state is disconnected.
Is there anything I can do to fix this issue? If so, I would truly appreciate any type of guidance you guys or gals could give me. Thanks!
I didn't read your entire post but myself and several others have reported signal issues after 4.4.4 flashes on all different ROM types. I think 4.4.4 is just picky about what firmware and baseband you're running. I flashed a few different RPM packages too but in the end I got lucky flashing the BLK3 modem and it seemed to fix my issues. I had noticeably poor signal strength most of the time and a couple times I would look down at my phone and I'd have no signal at all.
Maybe a dev or expert can shed some light on the root of the issue. I don't know enough about under the hood stuff to make an expert diagnosis.
Edit: The unanimous fix that everyone appears to agree on is to flash the MF1 AIO (all in one) package and then flash the ML1 modem only. Problem is finding a legit source for the MF1 aio package seems to be up in the air.
Like I said though, I didn't even do this. I was just trying all kinds of combinations of modems/aio's/ and rpm's and I got lucky. 2 days now with a solid signal at all times. LTE speeds are blazing too, 45 down and 10 up.
Check ur imei number. Or flash a backup and see if that fixes ur problem.
Sent from my SCH-I535 using XDA Free mobile app
jayjr1105 said:
Like I said though, I didn't even do this. I was just trying all kinds of combinations of modems/aio's/ and rpm's and I got lucky. 2 days now with a solid signal at all times. LTE speeds are blazing too, 45 down and 10 up.
Click to expand...
Click to collapse
Can you share the specific steps you took? What worked for you and where can we download it from?
thanks!