Related
Hello I seem to have a problem and I am hoping someone can help. My phone is rooted running Modaco r20 Desire Rom. Radio is ERE27. I have a strong 3G signal in my town with T-mobile. My problem is that for some reason whenever I use data (internet,online gaming, searching using apps etc) the icon will stay on 3G then switch over to H. Sometimes it will stay on 3G and it will not allow any data. I know about the EDGE to 3G issues. I don't seen to have that issue. Can anyone help and or know why this happens?
Usually, when browsing the internet or anything is being downloaded at all - the 3G icon will switch to H. Really only in custom ROMs though, I don't really believe this happens in the stock ROM.. it's not a bad thing or a problem, at least not for me.
Data doesn't completely shut off for me though.
The "H" means you are achieving an HSDPA connnection of sorts. Stock does not have this icon in it, since HSDPA is a form of 3G and they didn't want people getting confused by it switching from 3G icon to H icon.
HSDPA is faster than basic UMTS, aka "3G"... so it is not a bad thing at all.
No idea why you loose your data connection all together when it switches, since it isn't doing anything other than recognizing you have a faster data connection than basic 3G, nothing is actually changing to cause you to lose your connection since it is still the same connection.
pjcforpres said:
The "H" means you are achieving an HSDPA connnection of sorts. Stock does not have this icon in it, since HSDPA is a form of 3G and they didn't want people getting confused by it switching from 3G icon to H icon.
HSDPA is faster than basic UMTS, aka "3G"... so it is not a bad thing at all.
No idea why you loose your data connection all together when it switches, since it isn't doing anything other than recognizing you have a faster data connection than basic 3G, nothing is actually changing to cause you to lose your connection since it is still the same connection.
Click to expand...
Click to collapse
no it is not...
mine does the same thing... i have to twiddle my thumbs and wait when it switches between UMTS and HSDPA... they are different frequencies just like EDGE is on a different frequency...
I don't think UMTS and HSPA are on different frequencies, the same two frequencies are used (alternating for downlink/uplink) for both, those are 1700mhz and 2100mhz.
For some reason I don't have this problem on Long Island, but when I'm in the city this happens the whole time. Might be something to do with the way the network is configured. Basically whenever data is in use, it just says 3G, but as soon as I browse to a site or actually use data, it switches to H within a second or so. I think a stock ROM would technically be doing the same thing, but it just won't show the actual switch, as it doesn't differentiate between HSPA and UMTS in the top 'taskbar.' Although it would probably show this in the phone status screen under settings.
luna9698 said:
[SNIP]
Sometimes it will stay on 3G and it will not allow any data.
[SNIP]
Click to expand...
Click to collapse
The "3G" to "H" (and back) is a "red herring". If it's "stuck" on 3G when you're trying to do data, it means your handset is having issues communicating in the AWS bands for 3G (2100/1700) and the handset hasn't dropped back to GSM/GPRS/EDGE (1900) yet or is attempting to switch frequencies and the associated towers aren't cooperating with the hand-off or the hand-off is failing.
Cheers,
Kermee
gsvnet said:
I don't think UMTS and HSPA are on different frequencies, the same two frequencies are used (alternating for downlink/uplink) for both, those are 1700mhz and 2100mhz.
For some reason I don't have this problem on Long Island, but when I'm in the city this happens the whole time. Might be something to do with the way the network is configured. Basically whenever data is in use, it just says 3G, but as soon as I browse to a site or actually use data, it switches to H within a second or so. I think a stock ROM would technically be doing the same thing, but it just won't show the actual switch, as it doesn't differentiate between HSPA and UMTS in the top 'taskbar.' Although it would probably show this in the phone status screen under settings.
Click to expand...
Click to collapse
I'm in times square. My phone has never switch to UMTS. Either HSPA or EDGE.
also while it's idle it will only use 3G
it will switch to H to transfer data, then revert to 3G
Kermee said:
The "3G" to "H" (and back) is a "red herring". If it's "stuck" on 3G when you're trying to do data, it means your handset is having issues communicating in the AWS bands for 3G (2100/1700) and the handset hasn't dropped back to GSM/GPRS/EDGE (1900) yet or is attempting to switch frequencies and the associated towers aren't cooperating with the hand-off or the hand-off is failing.
Cheers,
Kermee
Click to expand...
Click to collapse
Ok now that makes sense. Anything I can do to help with the hand-off?
luna9698 said:
Ok now that makes sense. Anything I can do to help with the hand-off?
Click to expand...
Click to collapse
Not that I've found. I have this problem BAD here in Phoenix. I never even bothered with WiFi until I got a Nexus, now I can't live without it. I found that sometimes kicking the phone in and out of Airplane Mode sometimes alleviates it being "stuck".
luna9698 said:
Ok now that makes sense. Anything I can do to help with the hand-off?
Click to expand...
Click to collapse
Try setting the US BAND only in phone info.
ram130 said:
Try setting the US BAND only in phone info.
Click to expand...
Click to collapse
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
luna9698 said:
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
Click to expand...
Click to collapse
Which Modaco ROM? If it is Desire, you have to flash the newest radio, and do it after flashing the ROM itself, otherwise you will have major Radio issues... at least that is my, and a fair number of other's, experience.
pjcforpres said:
Which Modaco ROM? If it is Desire, you have to flash the newest radio, and do it after flashing the ROM itself, otherwise you will have major Radio issues... at least that is my, and a fair number of other's, experience.
Click to expand...
Click to collapse
Yeah its Desire rom. I have radio ERE27 right now
Try upgrading to the newest one, 32.26.00.24U_4.04.00.03_2:
http://android.modaco.com/content/g...-online-kitchen-optional-root-insecure-himem/
Make sure you have at least 50% battery before flashing, just download and flash via recovery just like a ROM, do not panic, ever, during the process and do a battery pull, just wait for it to flash, then ask you to reboot, reboot, it will then do the actual radio flashing (you will see a box with arrow screen for a couple minutes) it will reboot on its own into recovery, say "writting" cache with a progress bar for a few seconds. The bar will go away, but the "writting cache" text will not, don't worry it is done, just reboot and then double check it flashed by going to about phone, software, and checking baseband version.
Just remember, can't stress this enough, do not pull your battery at all during this process. And make sure you have at least 50% battery before starting. Flashing a radio is the only way you can brick an N1 right now, and only if you pull the battery during the process, or have a bad download. Speaking of which, I do recommend checking the MD5 sum to make sure it is a good clean download.
luna9698 said:
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
Click to expand...
Click to collapse
*#*#4636#*#* in the dialer but I don't see US Only.
luna9698 said:
Hmm I cant seem to find your suggestion? Can you be a little more specific? I am using Modaco rom if that makes any difference.
Click to expand...
Click to collapse
*#*#4636#*#* in the dialer. Hit menu button from there.
luna9698 said:
Hello I seem to have a problem and I am hoping someone can help. My phone is rooted running Modaco r20 Desire Rom. Radio is ERE27. I have a strong 3G signal in my town with T-mobile. My problem is that for some reason whenever I use data (internet,online gaming, searching using apps etc) the icon will stay on 3G then switch over to H. Sometimes it will stay on 3G and it will not allow any data. I know about the EDGE to 3G issues. I don't seen to have that issue. Can anyone help and or know why this happens?
Click to expand...
Click to collapse
Same thing happens with me. I'm in Phoenix myself with T-Mobile and running Cyan 5.0.5.3 with EPE54B and baseband v 32.26.00.24U_4.04.00.03_2.
I'll have full bars for 3G and when I goto check the market or anything internet related, the 3G will switch to H and work or stay at 3G and pause with connection error, retry or cancel.
I started having this issue after updating my factory stock radio. Anybody know which one is the stock/default radio IMG is? I'm thinking of downgrading and seeing what happens.
ram130 said:
Try setting the US BAND only in phone info.
Click to expand...
Click to collapse
I did this and it worked great! more consistent and quicker data access doesnt take forever to swith to H like before!
scuzzy19 said:
I did this and it worked great! more consistent and quicker data access doesnt take forever to swith to H like before!
Click to expand...
Click to collapse
I still can't find the way to set it up using US bands only. Any suggestions?
So I've had this phone for almost a week now and I used to he able to get 4g LTE. But ever since I rooted it, I no longer get more than 3g. I now have bananacakes Holiraider 1.6 but I still don't get any higher than 3g. So my question is how do I get 4g and 4g lte. Oh and if anyone is using that custom Rom, is it possible to get faster than 1512? In his thread it shows you can clock it to 1566. Thanks a bunch I'm kinda new to this!
try dialing *#*#4636#*#* and see what your modem is set to, it should be GSM/WCDMA/LTE auto
you also may have an APN issue, verifiy that your APN is correct, perhaps contact your carrier for the correct APN settings for you phone and plan.
Well I'm now running a custom ROM. The apn is the same as other users and it does say the above. And yes I am in a 4G LTE area
Sent from my HTC Raider X710e using XDA App
Try doing the above and change to LTE only.
Then once you have 4G change it back. It should stay on 4G. I had to do this to get 4G on official rom.
Ok I just tried that but it wouldn't let me to switch it to LTE only. When I did, it switched it back to GSM/WCDMA/LTE auto. I'm just gonna relock my phone and set it back to the original stock rom and format my phone (yes I have the apps and stuff backed up). Because my actual mobile connection fluctuates on and off as well
the phone should be locked into the GSM/WCDMA/LTE setting. If you try to change it from that setting it just returns back. The phone will get instructions from the carrier's base station to tell it whether to be on LTE or just 4G/3G. Using *#*#4636#*#* under phone information, what is listed as the Network type?
bangorang said:
Ok I just tried that but it wouldn't let me to switch it to LTE only. When I did, it switched it back to GSM/WCDMA/LTE auto. I'm just gonna relock my phone and set it back to the original stock rom and format my phone (yes I have the apps and stuff backed up). Because my actual mobile connection fluctuates on and off as well
Click to expand...
Click to collapse
It is locked in GSM/WCDM/LTE auto.
above that option it should tell you the network type. it is about half way between the "run ping test" button and the "Set Preferred Network type" option. Need to know what it says there.
Oh ok I see what you mean, it says HSDPA
make sure that you are in a active LTE area. toggle the radio off and on. the network type should change to LTE if it is available. remember that if you make a phone call your phone will drop back to just 4g/3g and it might take a second for it to switch back to LTE.
I live in Los Angeles so I'm like in the center of the LTE center in Southern California. But for some reason my phone won't get anything higher than 3G, and my actual cellphone reception toggles on and off randomly too.
It worked before. For the first 3 days atleast. And now all of the sudden it wouldn't work, so I rooted it and installed a custom ROM
Try one of WildChilds custom ROMS. LTE works on both and they're tailored to US users.
Sent from my HTC PH39100 using xda premium
if the problem arised before you rooted and rom'd the phone I doubt the rom is the problem. there is always the chance that you have a bad radio.
rft3ch said:
if the problem arised before you rooted and rom'd the phone I doubt the rom is the problem. there is always the chance that you have a bad radio.
Click to expand...
Click to collapse
That's what I'm thinking... What would I do about this?
i would verify your sim with another 4gLTE phone and vice versa.
Hrm... So it could be a Sim card problem eh? Unfortunately there are no other LTE devices for me to get a hold of... Would this be the only way?
it could be. i hope you have pulled battery/sim and then rebooted already. you can verify your phone with a known good sim and verify your sim with a known good phone. I would try your local at&t store. they might be able to help.
bangorang said:
Hrm... So it could be a Sim card problem eh? Unfortunately there are no other LTE devices for me to get a hold of... Would this be the only way?
Click to expand...
Click to collapse
rft3ch said:
it could be. i hope you have pulled battery/sim and then rebooted already. you can verify your phone with a known good sim and verify your sim with a known good phone. I would try your local at&t store. they might be able to help.
Click to expand...
Click to collapse
I have done it many times . Yeah I'm actually going to head over to the at&t store in a few minutes, I'll keep you posted. Thank you so much for your help! rft3ch!
I will be replacing my phone. I replaced the sim card and that wasn't the problem . The rep said that someone else came in with the same problem as well.
I'm getting a chance to do some extended testing with data roaming. I found a couple of other data roaming problem threads, but this issue is different than the problems discussed in those.
The HTC One is rooted, unlocked, S-OFF, stock 4.4.2 (4.06.651.4), with PRL 56018 installed from CDMA Workshop. I've installed a couple of the patches floating around for WiFi tether. I also have an HTC EVO 4G LTE with the 56018 PRL installed via QPST.
Right now, I am in an area with extremely weak Sprint signal and decent Verizon signal. The EVO 4G LTE finds Verizon 3G EVDO and will voice/data roam just fine. SignalCheck verifies that the provider is Verizon for 1x and EVDO, with signal between -90 to -100 dB. However, the One will not data roam. SignalCheck indicates that the One finds Verizon for voice (1X), but does not connect for data roaming. If I watch SignalCheck long enough, I can see that the One will find the Verizon EVDO for a few seconds every five minutes or so, but it won't "hold" the EVDO signal. On Sprint, the ONE will find both 3G and 4G.
I've played around with various mobile data settings, but nothing seems to help. In fact, the One will pop up the messages that data roaming is in effect, but there is no data connection. Since the EVO 4G LTE will EVDO roam, it seems that the One should EVDO roam as well.
Any ideas or suggestions on what to look at? On Sprint the 3G is usually ePHRD, not EVDO, perhaps there is some issue with EVDO on the ONE? I thinking about getting Roam Control to see if that would make any difference. I haven't taken the 4.06.651.9 update either.
Thanks!
I had a chance to do some further data roaming testing with the One and Evo 4G LTE side by side.
Roam Control seems to work fine on the One, except that the color of the blue button for selecting the roaming mode is hard to distinquish.
Unfortunately, it seems that the One will not lock on to a Verizon EVDO signal. I found several areas with strong EVDO signal. The EVO connected just fine, but the One wouldn't. The One does fine with Sprint's eHRPD signal, and will lock on to the Verizon 1xRTT for voice.
I don't know how to do further debugging. I guess it could be a radio problem, an issue with the 56018 PRL and the One, or some other issue.
Any suggestions are welcome!
jbhtexas said:
I had a chance to do some further data roaming testing with the One and Evo 4G LTE side by side.
Roam Control seems to work fine on the One, except that the color of the blue button for selecting the roaming mode is hard to distinquish.
Unfortunately, it seems that the One will not lock on to a Verizon EVDO signal. I found several areas with strong EVDO signal. The EVO connected just fine, but the One wouldn't. The One does fine with Sprint's eHRPD signal, and will lock on to the Verizon 1xRTT for voice.
I don't know how to do further debugging. I guess it could be a radio problem, an issue with the 56018 PRL and the One, or some other issue.
Any suggestions are welcome!
Click to expand...
Click to collapse
Providers dont like roaming, the newer the phone is the less likely it will be to roam, the first two M7 radios would not allow any roaming at all on my phone, the latest 2 do allow roaming but I need to force "roam only" with roam control, I am on the latest radio running GPE rom and use roam control to force roaming whenever verizon has a better signal and it works good. I am using PRL 56015 flashed via CDMA workshop.
---------- Post added at 09:10 PM ---------- Previous post was at 09:08 PM ----------
jbhtexas said:
The HTC One is rooted, unlocked, S-OFF, stock 4.4.2 (4.06.651.4), with PRL 56018 installed from CDMA Workshop. I've installed a couple of the patches floating around for WiFi tether. I also have an HTC EVO 4G LTE with the 56018 PRL installed via QPST.
Click to expand...
Click to collapse
Where did you get that PRL?
mcerk02 said:
Where did you get that PRL?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2573604
Unfortunately, my One will not data roam, even with Roam Control. It sees the EVDO for a few seconds, but won't hold it.
Would there be any tweaks that could be made to the radio from CDMA Workshop that might affect the data roaming behavior?
jbhtexas said:
http://forum.xda-developers.com/showthread.php?t=2573604
Unfortunately, my One will not data roam, even with Roam Control. It sees the EVDO for a few seconds, but won't hold it.
Would there be any tweaks that could be made to the radio from CDMA Workshop that might affect the data roaming behavior?
Click to expand...
Click to collapse
I dont think you can tweak a radio, all I could suggest is make sure you are on the latest radio from here
http://forum.xda-developers.com/showthread.php?t=2406330
and try the 56015 PRL from here
http://forum.xda-developers.com/showthread.php?t=1880781
I flashed the PRL with cdma workshop and use roam control when needed and it roams on 3G no problem. let me know if any of that helps.
mcerk02 said:
I dont think you can tweak a radio, all I could suggest is make sure you are on the latest radio from here
http://forum.xda-developers.com/showthread.php?t=2406330
and try the 56015 PRL from here
http://forum.xda-developers.com/showthread.php?t=1880781
I flashed the PRL with cdma workshop and use roam control when needed and it roams on 3G no problem. let me know if any of that helps.
Click to expand...
Click to collapse
I loaded PRL 56015 into the One with CDMA Workshop, but the problem remains...when roaming, the One will see the EVDO briefly but not hold it, according to SignalCheck.
I did a comparison between the various settings in the One and the EVO 4G LTE (where roaming works fine) using CDMA WS. The are significant differences, particularly on the CDMA, CDMA-2, and EVDO pages. For example, on the EVDO page, the EVO has a username ([email protected]) for HDR_User_long, but the One doesn't have one. The EVDO revision is also different. I don't know enough to fool with these settings.
Actually, the One is missing values for many settings that the EVO has. I'm beginning to wonder if somehow the One didn't get provisioned properly.
Thanks!
jbhtexas said:
I loaded PRL 56015 into the One with CDMA Workshop, but the problem remains...when roaming, the One will see the EVDO briefly but not hold it, according to SignalCheck.
I did a comparison between the various settings in the One and the EVO 4G LTE (where roaming works fine) using CDMA WS. The are significant differences, particularly on the CDMA, CDMA-2, and EVDO pages. For example, on the EVDO page, the EVO has a username ([email protected]) for HDR_User_long, but the One doesn't have one. The EVDO revision is also different. I don't know enough to fool with these settings.
Actually, the One is missing values for many settings that the EVO has. I'm beginning to wonder if somehow the One didn't get provisioned properly.
Thanks!
Click to expand...
Click to collapse
If you change any of them settings in CDMA workshop, save them first, if you screw something up you can reload the saved settings, I screwed with CDMA workshop alot in the past and you can do alot with it. Before screwing with them settings, did you try resetting or updating your data profile?..maybe something got messed up in the tweaking and flashing your doing. I flash all kinds of different stuff on my phone, every once in a while I flash a sense rom and update or reset my data profile just in case...
mcerk02 said:
If you change any of them settings in CDMA workshop, save them first, if you screw something up you can reload the saved settings, I screwed with CDMA workshop alot in the past and you can do alot with it. Before screwing with them settings, did you try resetting or updating your data profile?..maybe something got messed up in the tweaking and flashing your doing. I flash all kinds of different stuff on my phone, every once in a while I flash a sense rom and update or reset my data profile just in case...
Click to expand...
Click to collapse
I did "update profile" from Settings->System updates, but nothing changed. What you mean by resetting the data profile?
Thanks!
jbhtexas said:
I did "update profile" from Settings->System updates, but nothing changed. What you mean by resetting the data profile?
Thanks!
Click to expand...
Click to collapse
I am not on a sense rom right now and I forget the codes, try entering ##3282# or *#*#3282#*#* in your dialer, it should bring up a data menu, there should be an option to do a reset, it will basically erase your data profile and reboot, when it reboots it will do an activation and reset everything....or ##786# will completely reset everything, that has saved me once or twice but that also factory rests your phone. these will only work on a sense rom and I reccoment a backup before doing anything, just in case... if that dont work do a google search for epst codes, and find the one that resets your data profile.
mcerk02 said:
I am not on a sense rom right now and I forget the codes, try entering ##3282# or *#*#3282#*#* in your dialer, it should bring up a data menu, there should be an option to do a reset, it will basically erase your data profile and reboot, when it reboots it will do an activation and reset everything....or ##786# will completely reset everything, that has saved me once or twice but that also factory rests your phone. these will only work on a sense rom and I reccoment a backup before doing anything, just in case... if that dont work do a google search for epst codes, and find the one that resets your data profile.
Click to expand...
Click to collapse
I did a profile reset with ##3282#, and the behavior has changed somewhat. The One is now holding the EVDO signal according to SignalCheck. However, if I try to open a web page, a message box pops up indicating that data roaming needs to be enabled. If I tap on "data roaming" in the message box, it takes me to the mobile data settings. I have been over and over those settings, and tried different combinations of things, but I can't seem to come up with the magic setting that will make the phone think that data roaming is enabled. I am forcing roaming with Roam Control.
Is there some "hidden" setting to enable data roaming? There is a "CDMA Roaming" setting that has choices of Home/Automatic, and I have it set to Automatic. I have identical settings to the Evo in the mobile data settings, but I can't make it work on the One.
jbhtexas said:
I did a profile reset with ##3282#, and the behavior has changed somewhat. The One is now holding the EVDO signal according to SignalCheck. However, if I try to open a web page, a message box pops up indicating that data roaming needs to be enabled. If I tap on "data roaming" in the message box, it takes me to the mobile data settings. I have been over and over those settings, and tried different combinations of things, but I can't seem to come up with the magic setting that will make the phone think that data roaming is enabled. I am forcing roaming with Roam Control.
Is there some "hidden" setting to enable data roaming? There is a "CDMA Roaming" setting that has choices of Home/Automatic, and I have it set to Automatic. I have identical settings to the Evo in the mobile data settings, but I can't make it work on the One.
Click to expand...
Click to collapse
What rom are you using?, I think the stock roms from Sprint no longer have the "allow data roaming" option, Sprint tries to avoid us using roaming as much as possible, so if you are on stock rom or something close, you probly don't have this option, try flashing a modified rom that may have this option, or if you are familiar with using the exposed framework, I think there is a module you can use to enable the data roaming. I personally use Gruesomewolf's GPE rom and it has the option built in if you want to try it.
mcerk02 said:
What rom are you using?, I think the stock roms from Sprint no longer have the "allow data roaming" option, Sprint tries to avoid us using roaming as much as possible, so if you are on stock rom or something close, you probly don't have this option, try flashing a modified rom that may have this option, or if you are familiar with using the exposed framework, I think there is a module you can use to enable the data roaming. I personally use Gruesomewolf's GPE rom and it has the option built in if you want to try it.
Click to expand...
Click to collapse
I'm on the stock 4.06.651.4 ROM (rooted and S-OFF). This is my wife's phone, and I'd like to keep it stock and simple, as she's not a techie. However, she also travels where data roaming is required, so I might have to try another ROM.
Interestingly, My EVO 4G LTE doesn't have an "allow data roaming" setting under mobile network settings that I can find, but it roams just fine. In fact, the mobile data settings on the EVO and One are almost identical, except that the One has some additional GMS options. I wonder if there is some setting in a file like build.prop that affects data roaming.
I installed a couple of native hotspot hacks on the One. In looking through the zip files for those hacks to see what they actually did (which was quite minimal), some network-related things were changed in /system/customize/ACC/default.xml relative to the file in the original ROM, and a shell script was added that executes several iptables commands. I may try to manually undo those hacks to see if it has any effect. At this point, we need the data roaming more than the hotspot.
jbhtexas said:
I'm on the stock 4.06.651.4 ROM (rooted and S-OFF). This is my wife's phone, and I'd like to keep it stock and simple, as she's not a techie. However, she also travels where data roaming is required, so I might have to try another ROM.
Interestingly, My EVO 4G LTE doesn't have an "allow data roaming" setting under mobile network settings that I can find, but it roams just fine. In fact, the mobile data settings on the EVO and One are almost identical, except that the One has some additional GMS options. I wonder if there is some setting in a file like build.prop that affects data roaming.
I installed a couple of native hotspot hacks on the One. In looking through the zip files for those hacks to see what they actually did (which was quite minimal), some network-related things were changed in /system/customize/ACC/default.xml relative to the file in the original ROM, and a shell script was added that executes several iptables commands. I may try to manually undo those hacks to see if it has any effect. At this point, we need the data roaming more than the hotspot.
Click to expand...
Click to collapse
Alot of your issues can be solved with a custom rom, you wouldnt need to install the hotspot hacks either, most have native hotspot built in.
mcerk02 said:
Alot of your issues can be solved with a custom rom, you wouldnt need to install the hotspot hacks either, most have native hotspot built in.
Click to expand...
Click to collapse
Getting a chance to work on this issue again...it seems that the EV-DO problem with my HTC One is not limited to roaming, but also occurs on the Sprint network.
Again, doing side-by-side comparison between the HTC One and my EVO 4G LTE on Sprint network:
1) Set network mode to LTE/CDMA. According to SignalCheck, both phones will find Sprint LTE and display the 4G indicator in the status bar, and both will occasionally drop back to Sprint eHRPD for periods of 5-10 minutes (displaying the 3G icon in the status bar). Network is available to apps in both the LTE and eHRPD cases. No problems here.
2) Now...change network mode to CDMA Only. According to SignalCheck, the EVO will find Sprint EV-DO, the status indicator will change to 3G, and network is available to apps. However, on the One, SignalCheck indicates that EV-DO is found (but doesn't indicate which carrier), there is no 3G (or 4G) icon in the status bar, and apps report that there is no network. The EV-DO signal is strong for both phones.
So, it seems that on the One, LTE and eHRPD are working, but there is some kind of problem with legacy EV-DO, where the phone can find a signal, but can't complete the process of registering on the network, whether Sprint or roaming.
Do eHRPD and EV-DO use the same radio? Trying to rule out a hardware issue. I am thinking of flashing a different radio firmware. Perhaps something got corrupted when I did the OTA update.
Not that Sprint wouldn't do this, but it would seem odd to put something in the stock ROM that would prevent EV-DO, even on Sprint's network. Is there somebody out there on the stock ROM who could confirm that they can get network in CDMA only mode?
Thanks!
So, I finally got this problem solved! I had to do a ##786# "hard reset". After the reset, EV-DO works fine.
The reset process was interesting. I did backups, expecting the phone to be wiped. I entered ##786# and the phone said it was preparing, and then rebooted. But it rebooted into recovery (I have TWRP). Not being exactly sure what to do, I rebooted into the system. The phone booted up, and the provisioning process started and completed. It then fetched the PRL. But nothing was wiped out. Apps, data, and sdcard were all intact. Oh, well, no complaints, and everything seems to be working fine. I used CDMA workshop to put PRL 56018 back, and roaming seems to be working.
jbhtexas said:
So, I finally got this problem solved! I had to do a ##786# "hard reset". After the reset, EV-DO works fine.
The reset process was interesting. I did backups, expecting the phone to be wiped. I entered ##786# and the phone said it was preparing, and then rebooted. But it rebooted into recovery (I have TWRP). Not being exactly sure what to do, I rebooted into the system. The phone booted up, and the provisioning process started and completed. It then fetched the PRL. But nothing was wiped out. Apps, data, and sdcard were all intact. Oh, well, no complaints, and everything seems to be working fine. I used CDMA workshop to put PRL 56018 back, and roaming seems to be working.
Click to expand...
Click to collapse
I know you got your issue fixed and its been a while but just a heads up in case you run into problems again, I got a replacement phone from sprint and had the exact same issues youe were having, It is a problem with the data profile not being configured correctly, in my case, the new phone did not have my user name correct, worked fine on sprint network for some reason, but I couldnt get 3g in roaming areas, using epst I put my correct user name in and everything worked perfectly...dont know what rom your running now either but NUISENSE is awesome with this phone and it has "roam only" opttion built in, no need for roam control app....
Thanks for the tip!
I'm using the stock ROM. Since my last post, I have been able to test romaing, as we've traveled off the Sprint network, and roaming 3G worked fine. The only issue was that in a one spot we were roaming on a regional carrier, and the phone had locked on a quite distant tower according to SignalCheck, instead of Verizion which had closer towers. This resulted in some loss of 3G just as we were trying to get radar data for a storm we were traveling through (bad timing). But that is most likely a PRL issue. In looking though some PRL analyis an earlier version of 56xxx on another site, Sprint apparently doesn't have roaming agreement in this particular area with Verizon. I wish I new more about PRL editing so I could fix that...
I noticed if I go to the mobile networking settings and have it it on lte/3g if I leave a 4g area, 3g works ok. If I put the toggle specifically on 3g it shows I have 3g, but anytime I tried to search google or access a data connection the signal goes away and gives me the signal with an exclamation point. I tried finding info on this, but didn't see anything when I searched. Anyone else have this issue? I am on Sprint with the 64gb white device. Thanks
I leave mine on 3g due to the lame multiple text issue. It has no problem staying on 3g. Perhaps try updating your PRL/profile and see if that helps.
I don't have 3g either if I set it to 3g only. I don't leave lte service too often to test whether 3g works when it switches on its own. I may have to make a trip to the mountains to test it. I do know that my old Note 2 would loose lte after flashing tons over and over and I would have to flash back to 100% stock the factory reset from the settings app to fix it. I may try this with my Nexus, about time for a wipe anyway.
Factory reset does not fix it. Just noticed that I don't even get 3g when it is set on LTE. I'm gonna go talk to my cellular provider about it.
I don't know why it wouldn't work. You did update profile and PRL also right? Here's some shots of mine and it's working fine.
I have a bad Sim.....I also don't have a phone number as well..... I swiped with an old card I had and my number appeared, I guess I'll be visiting the store tomorrow to get a new one. Maybe it'll fix my 3g. Its also not wanting to let me pick 3g as an option now, just stays on LTE.
KB112 - Are you on sprint also? I updated prl/profile and no luck still. 3g still works if I am on lte and go into a 3g zone, but if I toggle it to 3g only I get no data. Wondering if its a sprint thing or a lollipop bug on Sprint, or a bad sim, missing feature activation.
Bluemgt06 - did a new sim fix it for you?
Sorry, didn't see this earlier. But yes, I am on Sprint. My 3G would work fine if I set to 3G only. Not sure why yours has issues with this?
Oddly I tried it today and it started working. I think it could have been some kind of issue with the tower/upgrades or a bug that a reset may fix on occasion perhaps.
Hi,
So I'm having an issue keeping an LTE signal. I use straight talk with at&t and I can get LTE if I turn the radio on/off, but it will always switch itself over to 3G at some point in the same location. There are apps that can force it to do LTE only which works, but I can't make or receive voice calls over LTE.
Does anyone know how to fix this? This never happened on other phones on the same network. In my specific location I get 2-3 bars of LTE and 4 bars if switched to 3G. I guess it wants to keep using the better signal.
Also at home where I have full signal LTE and H+, it will choose H+ over LTE.
Had same problem. Switched sim slot to the other. 4g again. Try IT?
Did you try different APN settings? I'm guessing you already checked the preferred network option.
Sent from my MIX using Tapatalk
APN settings are good and I can get LTE if I flip the radio on and off...it just always wants to revert back to 3G at some point. Same thing happens in sim card slot 1 or 2
pacattack81 said:
Hi,
So I'm having an issue keeping an LTE signal. I use straight talk with at&t and I can get LTE if I turn the radio on/off, but it will always switch itself over to 3G at some point in the same location. There are apps that can force it to do LTE only which works, but I can't make or receive voice calls over LTE.
Does anyone know how to fix this? This never happened on other phones on the same network. In my specific location I get 2-3 bars of LTE and 4 bars if switched to 3G. I guess it wants to keep using the better signal.
Click to expand...
Click to collapse
Which rom are you on? I remember there's a specific rom that has a bad modem file. Trying updating to the latest version.
Maybe you can solve it by going to APN settings and set APN protocol -> IPv4 and APN roaming protocol -> IPv4 . That worked for me. I had the same issue.
Or try IPv4/IPv6. That's network related and maybe IPv4/IPv6 is correct for you.
I have to set it every time I flash EU or EPIC rom.
Good luck.
did you ever figure this out?
I'm having a similar problem on a Note 4 Global. Only it switches to 3G for a voice call and never switches back.
dennygreen said:
did you ever figure this out?
I'm having a similar problem on a Note 4 Global. Only it switches to 3G for a voice call and never switches back.
Click to expand...
Click to collapse
Firmware update?
james1089 said:
Firmware update?
Click to expand...
Click to collapse
I've updated it, and it's all the same. Once in a great while it will switch over to LTE on its own, but 99% of the time it will just sit on H+ forever even though I know the LTE is fine wherever I go.
I guess this is just how it's going to be.
I finally fixed this by wiping everything in twrp and flashing a newer version of the global stable rom. LTE works fine now, and it doesn't stick on H+ when I make a call anymore.
dennygreen said:
I finally fixed this by wiping everything in twrp and flashing a newer version of the global stable rom. LTE works fine now, and it doesn't stick on H+ when I make a call anymore.
Click to expand...
Click to collapse
That's interesting. I guess Xiaomi fixed the bug in one of the releases. I wonder why you had to wipe everything though. What if we try to flash the latest modem. Is there a link to that? Would that work?
Would modem be the same as firmware? There's a thread on here that has those. None of them did anything for me.
My LTE problem is isn't fixed after all I guess. Once it loses LTE, it still never reconnects to it on its own and goes to H/H+ forever.
I guess the only thing that I've fixed is that it actually switches back to LTE after a phone call.