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.
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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
Related
So I was playing around trying to delete widgets and one of them took out my 4g/3g connection. The icon is stuck in 1x, and I can't find any setting to change it back.
dail *#*#4636#*#* . This will take you to the network settings. select phone information. And then scroll down to set preferred network type.
I did that, set it to both LTE mode as well as CDMA+LTE/Evdo, but then even when rebooting to toggle it, it shows Network Type as CDMA - 1xRTT
I'm seeing other threads with people having issues with being stuck in 1x, so maybe its just not me, and I disconnected and just happened to not get it back
I am having this issue as well. Rooted last night. In the process of removing system apps removed something I shouldnt have. Went to flash my back up created by Rom Man only to find out it wasnt made, fail, so i flashed the custom rom by Chingy. Since flashing the rom I only have 1X service no matter what I set the phone to on the toggle.
its not just you bro ive been having 3g and 4g problems all morning. I am in queens NY...if they dont get this fix before the 14 days I am returning this phone and going back to t-mobile
I had thus problem. Just turn airplane mode on for a minute, then turn it off and you should get 3g again.
Sent from my HTC Thunderbolt using Tapatalk
cnmsales said:
I am having this issue as well. Rooted last night. In the process of removing system apps removed something I shouldnt have. Went to flash my back up created by Rom Man only to find out it wasnt made, fail, so i flashed the custom rom by Chingy. Since flashing the rom I only have 1X service no matter what I set the phone to on the toggle.
Click to expand...
Click to collapse
I'm not even rooted, and I began experiencing this issue this morning after having my phone off and plugged in last night.
EDIT: I tested the above fix, and it didn't work for me. Every time the phone tries to turn 3g on it will appear in the status bar for a split second and then everything turns off, even 1x. weird.
It's a network problem on verizon's end. I'm in Cincinnati and data is not working at all.
I am getting this too - according to tech support, there is a problem with the 4G network right now - however why it doesn't fall back to 3G I don't know (unless there is a problem with that too).
I too am in New York, so it might be localized to NYC - They even tried resetting something on my VZ profile.
I'm still on the call as we speak, but I get the feeling given the number of people reporting this, it is a VZ problem.
CorporateGoth said:
I am getting this too - according to tech support, there is a problem with the 4G network right now - however why it doesn't fall back to 3G I don't know (unless there is a problem with that too).
I too am in New York, so it might be localized to NYC - They even tried resetting something on my VZ profile.
I'm still on the call as we speak, but I get the feeling given the number of people reporting this, it is a VZ problem.
Click to expand...
Click to collapse
It's definitely not just a localized problem. I'm all the way out in Utah (no 4g service here yet) and the 3g is completely jacked.
Yup confirmed with tech support, there's a nationwide outage with 4g data and they are working it with the highest priority, the tech said. Ah the costs of new technology. Always will have issues at start.
Same thing here, Pensacola, FL. Just went out on my drive to work today, now it's 1x across the board for me and the gf...she has an incredible and I have the tbolt...
Add me to the list. Been on the phone with tech support for 52 minutes and counting. I'm on hold right now and thought I would check xda. Stuck in 1x if I even have anything. I am about 35 miles south of Pittsburgh, PA. Phone is completely stock and worked perfect yesterday. Also, the tech said DO NOT dial *228 from the Thunderbolt. I didn't, but he said for future referece it will force the phone to use only 1x and 3g. Nice to know lol they didn't say that crap when I bought it. At least their tech support guys are super friendly.
Weird. Im in Akron Ohio and have full bars 4G. Just did speed test and getting 15Mbps down 20 up. Downloaded app off market just to be sure and downloaded without a hitch. This must not be affecting whole nation. (Yes my Wi-Fi is off lol)
Just got off the phone with VZ Tech support. He said there is not an acknowledge problem with the 3G network right now (unlike the 4G), but he's sure that soon there probably will be.
He could not use my phone as an example case (to raise the trouble ticket) because I was unwilling to perform the last step in the troubleshooting process (reflashing the phone) - but I'm sure there will be others willing to do that and this will become a known issue soon enough.
Worst part is, even my 1X support keeps going in and out - probably because the 1X network in NYC is overloaded, because all those users usually on 3G are all on 1X now, and killing it
Confirmed here, too...all 1x, must be a nationwide 3g issue
Same here south of Chicago. Guess I won't even bother calling about it. Thanks for the info.
This is definitely a widespread issue... I am in Miami and I can't even gey 3G here... I am only getting 1X.. The weird thing is, my friend has a Thunderbolt too and she seems to ne getting 3G fine.... If anyone receives any worse from Verizon, please post ASAP!!!
Yup im located in Manhattan New York having the same exact problem since 8:30am today No 4G or 3G i hope they get it fixed Soon Let's Go Verizon!
I seem to be having an issue with my data and am trying to narrow down the reasons for my problem. The issue is I CANNOT use HSUPA (H) for data, I always get a connection timed out issue. I put the phone in 2G GSM mode only and have data working, but of course I was spoiled with better speed I can't stand it.
My question is if AT&T could be doing upgrades to the towers in my area, will that affect my speeds, or is something broken internally in my phone. When I select WCDMA mode, it takes FOREVER for it to connect and says searching for a long time but does connect or displays (H) with 3/4 bars of signal. My friend has an unrooted captivate on 3G and has no issue with data. Does anyone know the cause of this.
I have tried a few different modems (jl3, jk4, kp1....) all the same and have tried 2 different OS's with same data timed out issues while trying to use (H). I am currently in the process of flashing back to stock to see if that will resolve the issue. Thank you for your time guys.
Thanontos said:
I seem to be having an issue with my data and am trying to narrow down the reasons for my problem. The issue is I CANNOT use HSUPA (H) for data, I always get a connection timed out issue. I put the phone in 2G GSM mode only and have data working, but of course I was spoiled with better speed I can't stand it.
My question is if AT&T could be doing upgrades to the towers in my area, will that affect my speeds, or is something broken internally in my phone. When I select WCDMA mode, it takes FOREVER for it to connect and says searching for a long time but does connect or displays (H) with 3/4 bars of signal. My friend has an unrooted captivate on 3G and has no issue with data. Does anyone know the cause of this.
I have tried a few different modems (jl3, jk4, kp1....) all the same and have tried 2 different OS's with same data timed out issues while trying to use (H). I am currently in the process of flashing back to stock to see if that will resolve the issue. Thank you for your time guys.
Click to expand...
Click to collapse
H doesn't necessary mean HSUPA. It simply means HSPA (HSDPA only or HSDPA and HSUPA). You didn't mention anything about your firmware but I guess you are experiment with non-Captivate firmware and modem combination trying to get HDUPA working. From what you described, it seems your current firmware and modem combinations lacks 850MHz support for 3G (most European firmwares lacks 850Mhz) and your local tower happens to use 850MHz, not 1900Mhz. Just a guess.
Make sure you have the modern set to proper frequency (WCDMA 850 or 1900) for your area. The modem thread can tell you all about how to do it.
Sent from my SAMSUNG-SGH-I897 using XDA App
Sorry guys, I guess that was an important part I forgot. I was running Andromeda and thought the same so tried Cognition 4.1.1. Also after going to stock 2.1 I still have the data issue. I can connect to wifi just fine, but no using ATT data will work.
I called customer service and walked through the steps as usual and after some looking into my area, he said there were 3 towers reporting severely degraded. It just sucks seeing my friends phones working with no issues. He said that repairs are stated to be finished sometime in the next few days and to call back later in the week if the problem persists.
Looks like you tried both i897ROM and non-i897 ROM, so it's not firmware related.
Did you try to put someone else's SIM into ur captivate? How about some other devices in ur area?
amtrakcn said:
Looks like you tried both i897ROM and non-i897 ROM, so it's not firmware related.
Did you try to put someone else's SIM into ur captivate? How about some other devices in ur area?
Click to expand...
Click to collapse
I didn't think about trying my friends sim card. I will test tomorrow morning. Ty for the idea to isolate the problem to my phone!
umm not really related to your phone. but im suggesting its the tower upgrades getting them ready for 4G that is causing your phone to act up. i have a HD2 and we have 3G down here. but since early march i get nothing but EDGE. what happens in the month march? AT&T will be launching 4G in selected markets. it was confirmed once i was talking to a AT&T tech. so im just waiting to see what happens in the end of this month.
NOTE: it could also be your sim card having problems. AT&T replaced mine thinking it was a problem with the sim card since i have a AT&T native W350 and i was getting the same problems. call them up again and ask to talk to a tech and tell them your having a problem with your sim card. they will set you up a appointment at a corporate store. free of charge.
I did not think that the Captivate's hardware was capable of HSUPA?
Is it?
bobapunk said:
I did not think that the Captivate's hardware was capable of HSUPA?
Is it?
Click to expand...
Click to collapse
there is a thread on how enabling HSUPA on the captivate. so if we can enable it im sure its capable.
heres the link if you want to read up on How to enable HSUPA on the Samsung Captivate
bobapunk said:
I did not think that the Captivate's hardware was capable of HSUPA?
Is it?
Click to expand...
Click to collapse
it is capable but att blocks it to save bandwidth
hmm,
That thread has not been updated for a long time...
What would happen if I flashed that i9000 modem with a KB1 based Kernel?
sal2708 said:
there is a thread on how enabling HSUPA on the captivate. so if we can enable it im sure its capable.
heres the link if you want to read up on How to enable HSUPA on the Samsung Captivate
Click to expand...
Click to collapse
bobapunk said:
What would happen if I flashed that i9000 modem with a KB1 based Kernel?
Click to expand...
Click to collapse
you would have data, but no voice
Sorry for nor replying sooner. My 3G data seems to be working again. My lack of in depth knowledge is why I put the hsupa above when my phone displayed H I didn't know what to call it.
It must have been tower upgrades. I didn't restart my phone and left it on the charger overnight and the next morning I had no issues. I did a reboot of the phone as a test and connected with data with no issue. Too bad as I was close to getting a replacement, though it would suck and be my luck to get one with other issues. Mine is a 1007 and works perfect (other than the obvious GPS.)
Sent from my SAMSUNG-SGH-I897 using XDA App
Pirateghost said:
you would have data, but no voice
Click to expand...
Click to collapse
That is what I thought, thanks!
When I'm on data, my phone is stuck on EDGE or GPRS when it should go up to 3G or H+. I've tried restarting my phone, turning wifi on and off, turning data on and off and made sure my settings looked okay. Any help is appreciated!
Cataclysm 11/26, Franco r14, dalvik patch. And if it's relevant, I'm on Rogers wireless.
I'm not sure but doesn't Rogers use global frequency in which case you need the 821 model?
I've definitely had 3G and H+ on my N5 (abbreviations much?), but it just seems very inconsistent. It'll go from H+ to 3G, back to H+, then cut out completely, then sit on E or G for a while. Just trying to pinpoint the issue because it's getting annoying haha. Perhaps it's the frequency that's screwing it up but that's definitely not my area of expertise. I do have the D820 model if that's helpful.
I'm having exactly the same problem with Fido right now, I tried pretty much everything including
- flashing back the factory image
- tried every modems from the xda thread in the Nexus 5 Android Development section (currently my phone is on the D821 modem but it didn't change anything)
- changing my apn (but it was obvious that this was not the problem since the phone had a edge connection.
I'm really about to call Fido...
Still, I'm kinda glad to see that i'm not alone.
maybe that the data service in your personal area?
Well going back and forth between 3G and H is normal. It picks up H/H+ when receiving/transmitting and goes to 3G when idle to save power.
obsanity said:
Well going back and forth between 3G and H is normal. It picks up H/H+ when receiving/transmitting and goes to 3G when idle to save power.
Click to expand...
Click to collapse
I called Fido, the technical support told me that they had something that was blocking me from 3G (but he didn't tell me what it was, he just told me that something was blocking me...) I had my beloved H+ back for maybe a whole minute and then it just switched back to Edge network.
All I wanted to know was if many customers have reported the problem or if I were alone...
Maybe if I'm lucky my phone will get back its 3G soon just like you.
I'm still having the issue today.
I called back Fido and they tried different things like desactiving/activing back my line, "updating my line" and more without any success.
Then I called google and told them the problem. They will change my Nexus 5 for a brand new but at the same time I feel like it is a software issue and not an hardward one... Well, we'll see, I never had a problem like that with any other phone before and the Nexus 5 never had any problem with 3G before yesterday.
I haven't tried everything yet, maybe you could try :
If you are in a LTE area, can the Nexus 5 connect itself to this network? Nearest LTE area from where I live is like 40 minutes away, bit too far just for a test.
Try with a sim card from another company like Telus or Bell, is the phone connecting to the 3G network? (I though about this while calling Google..)
Well, hope that the next phone will be ok.
Here are the few pictures just to show you a proof that even when I request a webpage, the phone will stays on 2g only.
http://imgur.com/a/a0QJ7
mark1s said:
I'm still having the issue today.
I called back Fido and they tried different things like desactiving/activing back my line, "updating my line" and more without any success.
Then I called google and told them the problem. They will change my Nexus 5 for a brand new but at the same time I feel like it is a software issue and not an hardward one... Well, we'll see, I never had a problem like that with any other phone before and the Nexus 5 never had any problem with 3G before yesterday.
I haven't tried everything yet, maybe you could try :
If you are in a LTE area, can the Nexus 5 connect itself to this network? Nearest LTE area from where I live is like 40 minutes away, bit too far just for a test.
Try with a sim card from another company like Telus or Bell, is the phone connecting to the 3G network? (I though about this while calling Google..)
Well, hope that the next phone will be ok.
Here are the few pictures just to show you a proof that even when I request a webpage, the phone will stays on 2g only.
http://imgur.com/a/a0QJ7
Click to expand...
Click to collapse
Thanks for the update mark1s. Definitely let me know if a new phone fixes anything, although I'm also thinking it's a software problem.
The problem could just be that there happens to be patches of low coverage in the areas we're testing this out, which seems unlikely in big cities. But testing at work seems to have this problem, but testing this at home I pick up 3G and H+ just fine. Odd..
My Verizon Galaxy SIII is stuck on 3G, and will not access 4G. I am using Cyanogenmod 10.2.1 (stable).
The problem started when I was travelling, and used *228 to try and improve reception. I just meant to use option 2 to update the list of towers (Preferred Roaming list), but derped and pressed 1 instead. Option 2 just updates the list of towers, while option 1 also updates the location of my Home switch. No issues making receiving calls/texts etc, but stuck on 3G data speeds.
Once I returned home from my trip, I used *228 option 1 again to fix this, but it did not.
allstrox said:
My Verizon Galaxy SIII is stuck on 3G, and will not access 4G. I am using Cyanogenmod 10.2.1 (stable).
The problem started when I was travelling, and used *228 to try and improve reception. I just meant to use option 2 to update the list of towers (Preferred Roaming list), but derped and pressed 1 instead. Option 2 just updates the list of towers, while option 1 also updates the location of my Home switch. No issues making receiving calls/texts etc, but stuck on 3G data speeds.
Once I returned home from my trip, I used *228 option 1 again to fix this, but it did not.
Click to expand...
Click to collapse
I had the same issue for the longest time... and did everything you tried... I ended up giving up and going into the Verizon store and asking for a new Sim Card (Which is free of charge). After that BOOM 4G again! everywhere!!! I recommend going in and getting a new SIM card!
Badouken said:
I had the same issue for the longest time... and did everything you tried... I ended up giving up and going into the Verizon store and asking for a new Sim Card (Which is free of charge). After that BOOM 4G again! everywhere!!! I recommend going in and getting a new SIM card!
Click to expand...
Click to collapse
Thanks! Might have to do that if nothing else works. Can't let them see I have a custom ROM on my phone.
allstrox said:
Thanks! Might have to do that if nothing else works. Can't let them see I have a custom ROM on my phone.
Click to expand...
Click to collapse
Ya No Problem....funny thing was the employee there couldn't tell I had a custom rom on my phone... regardless of him being unable to find anything on my phone lol, If worse came to worse I was just going to play dumb and say my friend "did something" to my phone to make it look different.
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.