I was out of town this past weekend. Wisconsin Dells if anyone is interested. While I was there I was experiencing some bad signal, so I read multiple times that you could force a PRL update for your phone to allow it to possibly roam on newer towers. I dialed the *228, then pressed 2. After the update my phone will now only connect to 3g. Even back home now, which I know for sure is a 4g area, I am still stuck on 3g. I spent quite a while messing with settings. The one that controls what network to use. I tried them all really. But its set to LTE/CDMA only right now.
I was running CM10.1 from 8/3. So I formatted system/data/cache/dalvik, everything basically, reflashed the latest build of CM 10.1, and it is still doing it.
Any other ideas before I reflash back to stock and call Verizon?
So I flashed back to stock. Still stuck in 3g. But in the touchwiz interface now it's a bit odd. In Mobile Networks, the list item says Preferred network mode: CDMA/LTE/EVDO. When I touch it, it presents 3 options, Global, LTE / CDMA, and GSM / UMTS. The LTE / CDMA item is selected. The odd part is that even though LTE is listed first on the option when it is selected from the pop up menu, it still says CDMA is first in the preferred network mode, the gray text. That is even more odd is that if I select the GSM one, it doesn't connect to anything, which is expected. But then if I go back into the option and select LTE / CDMA, the status bar icon will say 4g for a half second and then say 3g.
Any ideas?
I found this. Is my sim card really toasted?
https://community.verizonwireless.com/thread/786562
"I was recently browsing a different message board to see what was being said about the GS3's poor reception and data, and I came across a discussion on "updating towers" using *228. From what I read, it seems that dialing this number from a 4G phone not only does nothing to update your towers, but it also destroys your SIM card, and prevents you from accessing 4g. Consequently, you will need to get a replacement SIM card. I find it hard to believe that Verizon would allow something like this to happen. It seems that they would notify their customers when upgrading.
Has this happened to anyone???"
Update: I called Verizon. They confirmed the sim can get toasted if you dial *228 on a 4g phone. So I'll have to go into the store tomorrow morning to get a new sim. The support guy was cool about it. It said he did this exact same thing himself before he started working for Verizon.
Yeah I have heard that dialing *228 from a 4G phone is a big no-no but I didnt know that it actually fries your sim. At least you can get another one for free.
Sent from my SCH-I545 using Tapatalk 4
This could be a handy sticky. Just in case more people try/do this.
Send from my Nexus 4
I wish I had seen this thread sooner and I have been spending days trying to figure out why my phone would no longer connect to the LTE network after traveling to a 3G only area. Whoops!
I definitely think this should be a sticky - or at least warning not to use *228.
Related
Hello Just wanted to say thank you to all the peope who support this awesome website.
I got my TBolt yesterday and i know people have said they have had weird reception for 4g and what not. Luckily my house is in the center of a 4g area so in my house i have had perfect 4g coverage but today i went to town and i looked like it was trying to switch from 3g, 1x, or 4g but unsuccefully as it would only stay for a few seconds then disapear. Does this have to do with Verizon problems? if not what should i do?
Thanks
I was having the same issues going back to 3G from 4G. I would get no icons on the top of the screen and could only make phone calls. Tech support had me do a factory restore and that fixed it right away. Very annoying for sure to have to set up your phone all over again. If this keeps happening I'm not sure I will keep the phone. I am not about to factory reset every time this network handoff issue occurs.
Tech support told me they are working on a fix and I don't need to hard reset it yet. To me its silly to hard reset if its just going to happen again.
i was having similar issues and tech support had me take out the battery for a min and then put it back in and boot up and i had 3g back
Battery pull didn't work for me...
thanks guys battery pull seemed to work well!
Local VZW store said a national tech support email went out this afternoon regarding TB problems switching and dropping data. Email said the fix is on the network side and the phones have to be hard reset after 1PM mountain time to be fixed. Sounds fishy, but maybe worth a try.
I saw this linked in another thread. I take no credit for it.
http://forum.androidcentral.com/htc...blems-3g-data-dont-hard-reset-read-first.html
It helped me a little bit with my sporadic 3G connections here at work.
It appears vzw's eHPRD's network is down which is why data has been dropping once a tbolt is out of LTE coverage.
Use the ##778# menu (hit call after ##778#)-->password is 000000-->modem settings-->Rev A-->choose enable-->hit the menu button on the tbolt and commit changes
This is from the androidcentral forums. I can't post links yet, but a quick search over there will reveal the specifics.
This forces the device to use EVDO instead of eHPRD so you'll lose simultaneous voice/data, but at least if you're not in LTE coverage you'll get data. The device will still connect to LTE if it's available.
This worked on my device and my wife's.
I noticed that even in some areas of the same city that this network error is causing no access to 3g. I tested it by following the guide and sure enough the 1x switched to 3G. I hope Verizon gets this up and running. I think this is also causing calls to drop.
Sent from my ADR6400L using XDA App
God Dam ****ing verizon biooootch, angered me so much saying i couldnt get on 3g because I voided my warranty by doing *#*#4636#*#* and shutting of LTE. OMG I wanted to punch her through the phone.
I've been having an issue and I don't know if it's related, but it sounds like it.
I've been turning my phone to "CDMA auto (PRL)" whenever I go out for the day to conserve battery. But there's this one place that seems to disconnect me whenever I go. It's happened twice now, but when I go there, I lose data service and can't manage to get it back even after switching to 4G. The first time it happened, it was out from about 11pm to 3am. Today, though, I switched it to 4G and it came back, along with 3G.
Now, the problem here is that my girlfriend's Thunderbolt is fine during all of this. I'll lose 3G, but hers will stay connected even though we'll be in the same location. I don't understand what would be different about mine than hers. :S
Hey DJComent try pinggolf12's fix it worked for me.
I recently upgraded from the Incredible to the Rezound and find that when 4G not available, the signal drops down to 1X. Not only that, it seems to stay in 1X even when 4G is available. How can I get the phone to drop to 3G when 4G not available? The Incredible ran in 3G in the same areas that the Rezound drops to 1X. What do I have to set to get it into 3G?
Thanks for help.
both my GF and I have been having trouble with this on both our phones... We both live and work in 4G coverage, pretty strong coverage too. Yet we both see 4g drop out to 3g or 1x. Its very random, and I've had it happen right in the middle of browsing the web. (All of a sudden a page takes forever to load or doesnt and the phone acts like it has no data connection, I go to the home screen and see that I am all of a sudden on 1x..)
I recently read an article that talked about how VZW actually has a pretty major issue they need to resolve pertaining to authentication on the LTE network. I don't know the exact mechanics of it, but basically the authentication fails and you get booted off the LTE network until the phone tries to hop on it again. Right now, the two phones I have personal experiance with do not try very often to get back on and it often takes going into the wireless settings page and selecting mobile networks and going in and out of that screen a couple times, or if it is being stubborn, airplane mode, site for a minute, and then back on. Occasionally I have to reboot the phone.
It really irritated me good last night when I really needed the data connection for GPS navigation because I took a wrong turn in an unfamiliar area..
Sometimes going in and out of airplane mode helps or restart.
I'm not going to say look on the forums. Here is a quote from another thread and linked another thread.
had the same issue and fixed by this.
racingtiger03 said:
Dial ##778#, call
edit mode
password is 000000
modem settings
Rev. A
select "enable"
menu > commit
phone will reboot and you should get 3G back
This changes your network from eHRPD back to EVDO Rev.A. For LTE phone owners, eHRPD causes 3G to die (most of the time anyway) when the LTE network has problems. Get back on normal EVDO and you're good to go.
^ from Jntdroid on another forum (not sure if we're allowed to post to other forums here) I'm not positive on where he got it from, but this is a capability of all HTC 4G phones
I've had occasional issues with being down to 1X, but even that was only during nationwide 4G network issues, definitely get in touch with VZW about that... not that they have enough sense to fix anything *sigh*
Click to expand...
Click to collapse
Good luck. It's what fixed mine.
Sent from my rezound using xda premium
I have the same problem sometimes. Well most of the time actually. =(
Sent from my 4GHz Quad Core G1
I have the same issue periodically ..tho I live in a non lte area..so your suggested solution prob wouldnt be a good idea ey
Sent from my ADR6425LVW using Tapatalk
Same issue here. Only happens when I go from a 4G area to a 3G area. I end up getting stuck in 1x. The phone switches fine from 3G to 4G. But when going back to a 3G only area, it by-passes 3G and I get 1x.
No toggling helps. I have to reboot to get 3G back. I also tried that fix posted above. It does not help. Called verizon again tonight.
The strange part is before we had that 4G outage a few months ago, the phone would switch just fine. Now it's a pain in the ass.
Sorry it isn't helping. It worked in mine and done exactly the way it told me. Go from 3-4g now without an issue. No 1x like before
Sent from my rezound using xda premium
Hello,
I am coming from an Inspire 4g phone have been using the Not since its release date. I am having a similar issue with my Note that the Inspire had, but I am unable to work-around the issue the way the Inspire did.
My issue is that while my phone has great cell tower signal, my phone drops into Edge connectivity constantly. Prior to my Note upgrade, my Inspire would do the same thing, but I had a couple of work arounds I could do to lock back into 4G (HSPA+).
A) I could reboot the phone and the overwhelming majority of times it would go back to H+.
B) I could turn the mobile data radio off and then back on and again, the majority of the times, it would go back to H+.
C) The fix I used most often was to go into the phone dialer and dial *#*#4636#*#*. This brings up a back door to the testing screens and I could access the phone information section. In phone information, I could change the preferred network type and I would change from the default WCDMA preferred to either GSM ONLY or WCDMA ONLY depending on the area I was in. This not only work with near 100% success, it also locked the signal into H+ for longer periods of time.
Now that I have my Note, I have the same issue with the phone dropping to Edge service. However, when I try each of the 3 methods above, including *#*#4636#*#*, my phone stays locked into Edge. I can not get it to change.
I called AT&T about the issue and they explained to me that the phone will lock into the stronger signal, so if Edge is stronger, that is what I will get. I told them about my workaround with my Inspire and they could not give an explanation why it worked with that phone. I did talk them into re-sending the network information to my phone while on the call. They sent the information and while I was sitting still with full bars of signal strength, the phone miraculously popped into 4G service. I asked why it would change from Edge to H+ when they sent the network information since I didn't move to affect the signal and they could give me no explanation.
Does anyone have an idea how to make the Note ignore Edge service if H+ is available? If I can't figure this out, the Note is going back and I will stay with my Inspire 4G for now.
Thanks,
Roger
Flash the Rogers modem(I think)..its got RAT access or whatever its called.
Sent from my SAMSUNG-SGH-I727 using xda premium
(I don't have a Note yet but...) Settings- Wireless and Network- Mobile Network- Network Preferences. Maybe you can force it there. Keep in mind this is an LTE phone, and SIM, so a little different than our Inspires.
kimtyson said:
Settings- Wireless and Network- Mobile Network- Network Preferences.
Click to expand...
Click to collapse
Unavailable on the stock rom.
kimtyson said:
(I don't have a Note yet but...) Settings- Wireless and Network- Mobile Network- Network Preferences. Maybe you can force it there. Keep in mind this is an LTE phone, and SIM, so a little different than our Inspires.
Click to expand...
Click to collapse
As stated, this is not available in stock rom nor TPC Note 2, which I am currently running. However, based on what I remember seeing on other Samsung phones, the *#*#4636#*#* feature I reference is supposed to do the same thing.
Thanks for the replies. Looks like the RAT feature is locked. Using the Rogers Radio seems to fix the problem, but breaks video playback at this time.
I found it an other thread, so I don't take any credit for it as someone else posted it, but I have confirmed it works on my Galaxy Note
*#*#197328640#*#* > debug screen > phone control > network control > band selection
You need to do this after each reboot though as it does not stick.
To work around this I have made a contact and only left out the last * in it, so all you do is use that as a speed dial and you are good to go
Hey folks, any ideas why my APN will auto-switch to non LTE - Verizon Internet every fourth or fifth time I unlock the screen? It's been doing this for about two weeks since I flashed CM10.1 and Devil Kernel. I've since tried going back to TW as well as wiping everything on the phone including system prior to flashing different ROMs. Right now I'm running CM10.1 08-13 nightly with Plasma 1.67 kernel and it's doing the same thing.
At first I thought it could be signal strength causing it to not connect to LTE, but it's completely switching APN to non-LTE. At wit's end right now because no combination of stock TW or CM10.1 will let it stick.
Guess I should ask my question:
Is there a way to make the APN stick to LTE - Verizon Internet instead of letting it arbitrarily switch to EHRPD - Verizon Internet, which drops my LTE connection? Anyone have any ideas as to why it's switching on its own in the first place? When I'm on the EHRPD - Verizon Internet the phone doesn't seem to ever switch back to LTE, even though what I read on the 'net says it should be switching back and forth depending on signal. I have to go into the *#*#4636#*#* menu and switch it back to LTE/GSM/CDMA auto (PRL) as it has switched to CDMA auto (PRL) when on EHRPD - Verizon Internet.
Seamonkey79 said:
Hey folks, any ideas why my APN will auto-switch to non LTE - Verizon Internet every fourth or fifth time I unlock the screen? It's been doing this for about two weeks since I flashed CM10.1 and Devil Kernel. I've since tried going back to TW as well as wiping everything on the phone including system prior to flashing different ROMs. Right now I'm running CM10.1 08-13 nightly with Plasma 1.67 kernel and it's doing the same thing.
At first I thought it could be signal strength causing it to not connect to LTE, but it's completely switching APN to non-LTE. At wit's end right now because no combination of stock TW or CM10.1 will let it stick.
Guess I should ask my question:
Is there a way to make the APN stick to LTE - Verizon Internet instead of letting it arbitrarily switch to EHRPD - Verizon Internet, which drops my LTE connection? Anyone have any ideas as to why it's switching on its own in the first place? When I'm on the EHRPD - Verizon Internet the phone doesn't seem to ever switch back to LTE, even though what I read on the 'net says it should be switching back and forth depending on signal. I have to go into the *#*#4636#*#* menu and switch it back to LTE/GSM/CDMA auto (PRL) as it has switched to CDMA auto (PRL) when on EHRPD - Verizon Internet.
Click to expand...
Click to collapse
I am having the same issue, but if I force it into LTE through the test menu I can get data at 4g speed. But it shows no signal.
I thnk it is suppose to be on the VZWINTERNET. I just had this issue with carbon, and I figured out the network options I were using was wrong. I kept choosing LTE/CDMA, but it should've been LTE/CDMA/EvoD and once I did that i got snapepd back into 4g.
kimdoocheol said:
I thnk it is suppose to be on the VZWINTERNET. I just had this issue with carbon, and I figured out the network options I were using was wrong. I kept choosing LTE/CDMA, but it should've been LTE/CDMA/EvoD and once I did that i got snapepd back into 4g.
Click to expand...
Click to collapse
On the advanced data menu that is what mine is showing, when ever I select the LTE apn it bounces back to a 3g one.
Got a new sim card and the issue is fixed.
vertig0730 said:
Got a new sim card and the issue is fixed.
Click to expand...
Click to collapse
When you flashed the ROM originally and started having this problem were you asked to activate your phone. I am having the same issue after flashing a 4.3 ecliptic one ROM on my HTC One. I was running the same ROM but 4.2.2 before flashing. The first thing I was required to do was *228 for activation. I used option 2 to update the roaming capabilities and after that I could no longer stay on LTE. I was pushed over to ehrpd. Even when I tried LTE only using the method listed above I could not get a connection to the internet (even though it showed APN= LTE).
I will probably just go to VZW and get another SIM card for LTE.
Any thoughts would appreciated.
dave4485 said:
When you flashed the ROM originally and started having this problem were you asked to activate your phone. I am having the same issue after flashing a 4.3 ecliptic one ROM on my HTC One. I was running the same ROM but 4.2.2 before flashing. The first thing I was required to do was *228 for activation. I used option 2 to update the roaming capabilities and after that I could no longer stay on LTE. I was pushed over to ehrpd. Even when I tried LTE only using the method listed above I could not get a connection to the internet (even though it showed APN= LTE).
I will probably just go to VZW and get another SIM card for LTE.
Any thoughts would appreciated.
Click to expand...
Click to collapse
You will need a new sim. You don't have to activate and especially not update via *228 with a 4G sim card.
jcollier said:
You will need a new sim. You don't have to activate and especially not update via *228 with a 4G sim card.
Click to expand...
Click to collapse
Thanks. It appears I am not the only one having this issue.
http://forum.xda-developers.com/showthread.php?t=2512449&page=4
Although, I am afraid that I might still need to go to VZW.
I used to get LTE around here with this phone. Since about a month ago, things have gotten weird. If I use LTE/cdma/evdo mode or global, it just goes to 3G and never connects to LTE. If I go to LTE/gsm/wcdma, it gets LTE but no voice or text (which makes sense because Verizon isn't GSM). The LTE performance also seems really bad in this mode. It seems as though 3G is somehow prioritized above LTE, so if both are allowed it defaults to 3G. Manually switching APN's doesn't help. If I select "LTE - Verizon Internet" it doesn't connect to data and then after about 30 seconds goes to "EHRPC - Verizon Internet " and connects to 3G. Similar results on multiple different ROMs and radios.
I'm wondering if the SIM card could somehow be to blame. If I go to the Verizon store, will they give me a free SIM despite having CM on my phone? Don't care about warranty, phone is over a year old.
Are you on a custom or stock Rom? Is there a "Global" setting under networks? That's what my s4 uses. I don't think it could be your SIM cause if it was you wouldn't have any signal at all, not just 4g.