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.
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I warrantied out my first rezound due to the vibrating not working anymore, and my replacement arrived, and its updated to the latest OTA 3.14.605.12, and when i go into mobile network, I only get the choice of LTE/CDMA and CDMA. I remember on my last phone, when i went in there, I had the option of selecting GSM and other options...
I thought the .12 version enabled world options to allow using GSM bands? Maybe I'm confused... I'm trying to get it up and running on a straight talk sim (at&t)
This will give you gsm option: http://www.androidpolice.com/2012/0...ull-ruu-build-4-03-605-2-for-the-htc-rezound/
This one to get 3G working: http://forum.xda-developers.com/showthread.php?t=1914122
Thanks!
Found that the other day and forgot to post back here. Got straight talk working on edge. Call quality was great, signal great. Wanted faster speeds so i tried the 3G thing and got HSPA working, but signal was absolutely horrible and cut in and out non-stop to where it was not usable 95% of the time. Straight talk is not worth it for me because the edge data speeds are almost unbearable for this phone (maxed at 0.12Mbps if i could get it to even register). HSPA i clocked it up at around 8-9Mbps, but that would work for 10-15 second bursts between switching to 3g and back to edge, and back to 3g, and back to hspa. It was very frustrating, so back on verizon I am. Trying to save money somehow but can't seem to shake verizon for the life of me. Nothing compares to the speeds and consistent signal strength.
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.
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.
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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.
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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.
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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.
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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.
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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.
For the past week I've been having problems with my phone seeming locked in "wcdma preferred" mode despite it being actually set to lte/cdma in Phone Info menu. I'm in San Francisco and my daily commute path is completely blanketed with lte, and I have never had any problems connecting to lte until this past week. Usually as soon as I arrive in SF on the train, my phone immediately connects to and stays connected to lte. But at around the time tmobile rolled out their new plans (March 25ish?), my phone has been connecting to hspa 4g and remains on hspa until I force a lte connection by going into phone info menu (*#*#7696#*#*) and choosing lte only. This is particularly irksome because the 4g signal is only 2-3 bars while the lte signal is a full 5 bars. For whatever reason, my phone is clinging onto the hspa connection and passes my signal from tower to tower without actually passing it up to a lte tower. Once I force a lte connection, my phone will remain on lte and will pass back and forth between lte towers as it did before.
Anyone else notice this happenning recently?
gtcardwhere said:
For the past week I've been having problems with my phone seeming locked in "wcdma preferred" mode despite it being actually set to lte/cdma in Phone Info menu. I'm in San Francisco and my daily commute path is completely blanketed with lte, and I have never had any problems connecting to lte until this past week. Usually as soon as I arrive in SF on the train, my phone immediately connects to and stays connected to lte. But at around the time tmobile rolled out their new plans (March 25ish?), my phone has been connecting to hspa 4g and remains on hspa until I force a lte connection by going into phone info menu (*#*#7696#*#*) and choosing lte only. This is particularly irksome because the 4g signal is only 2-3 bars while the lte signal is a full 5 bars. For whatever reason, my phone is clinging onto the hspa connection and passes my signal from tower to tower without actually passing it up to a lte tower. Once I force a lte connection, my phone will remain on lte and will pass back and forth between lte towers as it did before.
Anyone else notice this happenning recently?
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Click to collapse
Try setting it to gsm/wcdma/lte auto under settings -> mobile data -> network mode.
Sent from my HTC One using Tapatalk
The gsm/cdma/lte auto setting is the default setting the phone shipped with, and changing it back to this didn't solve the problem. I use lte/cdma because I wanted to eliminate edge bands altogether since data is practically unusable when connected to edge, and the phone has an annoying tendency to fall back onto edge prematurely.
During the times affected, the phone seems to be locked onto the "wcdma only" setting, regardless of what was actually being selected.
I called tmo a few times and the issue seems to be resolved now. I'm certain it was an issue on their end, probably some software provisioning problem that came up when the new rates rolled out. For what it's worth I am on the now grandfathered $20 unlimited data plan.
gtcardwhere said:
The gsm/cdma/lte auto setting is the default setting the phone shipped with, and changing it back to this didn't solve the problem. I use lte/cdma because I wanted to eliminate edge bands altogether since data is practically unusable when connected to edge, and the phone has an annoying tendency to fall back onto edge prematurely.
During the times affected, the phone seems to be locked onto the "wcdma only" setting, regardless of what was actually being selected.
I called tmo a few times and the issue seems to be resolved now. I'm certain it was an issue on their end, probably some software provisioning problem that came up when the new rates rolled out. For what it's worth I am on the now grandfathered $20 unlimited data plan.
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I'm still trying to understand what T-Mobile was thinking when they changed their plans. Way to keep themselves super competitive.
I searched the web for 15 minutes and came up with nothing good, so I'm asking the general audience here at XDA.
Basically, it comes down to: If I need to use APN settings for my carrier, like using Verizon Note4 on T-Mobile network, what happens when my phone connects to another carrier like AT&T with HSPA+ that doesn't match up to the current APN settings?
The immediate answer appears to be that I won't get any data while on the AT&T network.
In more detail:
I have a Note 4 that was purchased through Verizon long ago. I recently rooted and rommed this device to CyanogenMod and put a T-Mobile SIM in it. I added the T-Mobile APN settings and it works fine on T-Mobile LTE since the Note4 has the correct 700MHz band (or whatever). However, when I'm driving to work, the connection drops from T-Mobile and it hooks up to AT&T (I think) and shows H+ in my notification bar. I assume that's HSPA+ from AT&T, as that is the only carrier that has HSPA+ in my entire state. When it does this, I believe that my data connection does not work because SiriusXM stops playing music and stuff. Sometimes the Note4 will reconnect to T-Mobile network pretty quickly and SiriusXM resumes playing (at 2x speed like Chipmunks....it's a terrible app honestly).
I'm wondering if I need APN settings for the AT&T HSPA+ network that my phone connects to while driving. Which makes me wonder how APNs work, like does the phone detect which one it needs to use as your cellular connection changes. Or can you combine 2 APN's to help my situation somehow? Is this why people have multiple SIM cards?
Thanks!