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Lately when I turn on 4g it will connect and then go to sleep indicated by the "ZZZ" but if I try to use data i get no connection messages and the "ZZZ" doesn't go away indicating it is trying to connect. I turn it off and 3G works fine. Sometimes a reboot fixes it for a while. For some reason this morning after rebooting I got the message about updating the modem from EF02 to EF10 even though I am on the EC05 modem. Could it be a hardware problem with my 4G or does anyone have any other ideas?
Did you try adjusting the minimal 4G reception in the "Want better 4G" thread. It worked great for me.
Sent from my SPH-D700 using xda premium
Yes I did that when it was first posted and it has worked fine up until recently. I have 2 other Epics in my house both rinning SFR 1.2 also but I haven't done that mod yet to them. I was considering getting the original values off one of them and changing mine back to see if that helped.
I have noticed that some apps wake up 4G and some do not. For example, I would do a speed test, it wouldn't work, I load a web page, then try speed test, and it would work.
Also, try turning off then on 4G.
Gavisann said:
I have noticed that some apps wake up 4G and some do not. For example, I would do a speed test, it wouldn't work, I load a web page, then try speed test, and it would work.
Also, try turning off then on 4G.
Click to expand...
Click to collapse
Yup, same here. I know Whosdaman said they are doing some improvements on the network towers. My 4G speeds have been better lately but there are times where its hard to connect
Sent from my SPH-D700 using xda premium
I figured there may be a problem waking 4G but even Browser, Google Maps and Market don't work when this happens. I would think if it was a tower issue I wouldn't show connected would I?
I live in the suburbs of Houston where the WiMAX coverage is kind of spotty. If I leave an area of coverage for more than like say a minute, my 4G will stop attempting to scan for a new 4G signal and never attempt to reconnect even if I enter a new area with 4G coverage. I have to manually toggle the connection in the notification bar.
I've searched the forums and noticed several posts describing the same issue.
Does anyone have a solution?
AzN1337c0d3r said:
I live in the suburbs of Houston where the WiMAX coverage is kind of spotty. If I leave an area of coverage for more than like say a minute, my 4G will stop attempting to scan for a new 4G signal and never attempt to reconnect even if I enter a new area with 4G coverage. I have to manually toggle the connection in the notification bar.
I've searched the forums and noticed several posts describing the same issue.
Does anyone have a solution?
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Click to collapse
I have seen this issue as well, do you use bluetooth? I know its a random question but I have only noticed this issue with mine when I have the bluetooth on.
rayprobg said:
I have seen this issue as well, do you use bluetooth? I know its a random question but I have only noticed this issue with mine when I have the bluetooth on.
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Click to collapse
Bluetooth is not turned for on my device.
Bump. Anyone else having this issue?
I'm using the phone app so I don't know the link, but there's a link in general, I think, that describes increasing 4g performance. There's two simple tweaks to do and some involved ones. I just did the two simple ones. One is to change the retry interval down to 15 seconds and the minimum signal level for 4g lock is -110db. Those two changes made a noticeable improvement on fringe areas and inside for me.
forum.xda-developers.com/showthread.php?t=1265990
oscarthegrouch said:
forum.xda-developers.com/showthread.php?t=1265990
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Click to collapse
I did those tweaks, that is not the issue. I have tried all the WiMax_Scan_Retry from 1 to 300 and the WiMAX will never reconnect.
For example: I do not have 4G at school and I have 4G at home. If I drive to school, the 4G will disconnect.
Then when I drive home back into 4G coverage and go to sleep even after 10 hours, the 4G will not reconnect.
Bump!!! Also have this issue.
Sent from my SPH-D710 using XDA App
AzN1337c0d3r said:
I did those tweaks, that is not the issue. I have tried all the WiMax_Scan_Retry from 1 to 300 and the WiMAX will never reconnect.
For example: I do not have 4G at school and I have 4G at home. If I drive to school, the 4G will disconnect.
Then when I drive home back into 4G coverage and go to sleep even after 10 hours, the 4G will not reconnect.
Click to expand...
Click to collapse
Try doing what most people do, when you know your leaving a 4g area turn it off. Then turn it back on when you get home. No sense in wasting battery. That and it only takes a couple seconds to turn out back on and reconnect.
Sent from my SPH-D710 using Tapatalk
Khilbron said:
Try doing what most people do, when you know your leaving a 4g area turn it off. Then turn it back on when you get home. No sense in wasting battery. That and it only takes a couple seconds to turn out back on and reconnect.
Sent from my SPH-D710 using Tapatalk
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Click to collapse
I have extended battery that will literally last days even with 4G on so that is not an issue for me. Besides, this is not a viable solution if I want 4G in the car and it moves in and out of areas of spotty coverage. 3G where I live is about as fast as 1x.
Mod? Rooted? Modem?
Is your phone software on stock?
What OTA updates/mods are you running?
Kernel/Modem versions?
It would be good to know of the people seeing these problems have similar software/mods/modems.
mightypenguin said:
Is your phone software on stock?
What OTA updates/mods are you running?
Kernel/Modem versions?
It would be good to know of the people seeing these problems have similar software/mods/modems.
Click to expand...
Click to collapse
I agree. Post your setup in detail. It will help to narrow this issue down. For example I had similar prob's on EL13 modem but with 26/29 flash all is good.
So more info plz.
mightypenguin said:
Is your phone software on stock?
What OTA updates/mods are you running?
Kernel/Modem versions?
It would be good to know of the people seeing these problems have similar software/mods/modems.
Click to expand...
Click to collapse
I tried these:
Stock/Stock+Root/Starburst/Caulkin
EK02/EL26/EL29
Rogue1.3/1.4
This may be an example where adjusting the WiMax settings in ##data# with MSL number will help. Try lowering minimum signal picked up from -89 to -110, you can also change how long it stays connected and how fast it reconnects too...and here's where to read about it all...I did it on my OG Epic, Nexus, and this phone but slightly modified settings..it could also be a kernel thing too. Some of the Nexus ICS ones do that and wont reconnect until you go into settings and toggle
http://forum.xda-developers.com/showthread.php?t=925898
Sent from my SPH-D710 using xda premium
AzN1337c0d3r said:
I tried these:
Stock/Stock+Root/Starburst/Caulkin
EK02/EL26/EL29
Rogue1.3/1.4
Click to expand...
Click to collapse
Ok now it's time to go to your local sprint store. Im outa ideas. You have done morethan most B4 choking a rep.LoL.
I have this same problem.. Sometimes sitting in the living room. When im outside i get 4 bars of 4g but inside i get 1. if some reason i get disconected, it seems to switch over to 3g and stay there without scanning again. If i walk outside again, still stays 3g until i toggle off and on 4g again....
UNnamed with EL29 leaked modem flashed with Gunslinger kern.......
Sent from my SPH-D710 using XDA App
Anyone know of an app that will toggle 4g for us when it loses connection?
Or maybe a tasker profile? I tried in tasker, but I can't seem to get it to do more than basic things. There a couple spots in town that always lose 4g when I drive by and never reconnects as well. 3g is slower than when I use roam control on 1x verizon.
How's it going everyone. Just left sprint for T-Mobile. Even with the problems I'm having its still better than sprint crappy network. Anyways. For some reason no matter what ROM I'm on I'm having issues where the WiFi will turn off it will go to 4g than WiFi will randomly turn back on. Or I'll have great service than randomly I'll see an E near my signal bars and it slows down for a good 5 minutes. Any idea what may be causing the problem?
Sent from my SGH-T999 using Tapatalk 2
It makes no sense!!
Sent from my SGH-T999 using Tapatalk 2
Flash a different modem for signal issues.
Sent from my SGH-T999
I've done that. No luck
Sent from my SGH-T999 using Tapatalk 2
In settings 》More settings
Make sure WiFi calling is disabled. Then go into Mobile Networks and change Network mode to WCDMA Only. See if that helps.
Sent from my SGH-T999 using xda app-developers app
Well if you are getting the E, that's Tmobile's network for ya. It is quite spotty. I get the same thing and goes back to 4G soon after. One of my main gripes with Tmobile.
If you do what DocHoliday said, it won't work at all. Just won't have any signal at all. If you leave it to auto, you will at least get the EDGE network.
Did this do the same thing with your old phone? If not, not sure what the deal would be besides weak radio maybe.
Try using the Llama app to force wifi on and disable the radios when around specific locations?
That's a workaround though...
JesseMT4G said:
Well if you are getting the E, that's Tmobile's network for ya. It is quite spotty. I get the same thing and goes back to 4G soon after. One of my main gripes with Tmobile.
If you do what DocHoliday said, it won't work at all. Just won't have any signal at all. If you leave it to auto, you will at least get the EDGE network.
Did this do the same thing with your old phone? If not, not sure what the deal would be besides weak radio maybe.
Click to expand...
Click to collapse
Its worth a shot. I had issues with staying on 4G when I first got the phone. That fixed it for me.
Spotty service depends upon your area imo. Sounds more like a network issue to me. Could be a side effect from all the refarming work they're doing on the network. Its a nationwide project so it can hapoen anywhere.
@op
If you turn off WiFi does it work as it should? If so check that WiFi calling isn't enabled and set to WiFi preferred. If it is turn it off and test, then if fixed turn it back on and try Cellular preferred.
Sent from my SGH-T999 using xda app-developers app
Dude I had that same issue until I flashed lh2 roms. Havent had that issue with lh2 roms at all.. try stocked up or wildchilds xquizit.
Sent from my SGH-T999 using Tapatalk 2
For what it's worth, I had this issue yesterday out of the blue. Nearly every time I would unlock my phone, wifi would be disconnected and I'd see the 4G icon. After unlocking the phone, a few seconds later it would connect up to wifi again. And yes, this is even with wifi set to always on in the advanced settings.
I realize there could be multiple causes for this symptom, but the fix for me was simply forget the wifi network and connect up to it again and the issue disappeared since then. Hasn't happened today yet either.
Anyone have an issue with their phone randomly dropping Wifi/Cell connections? Sometimes it doesn't happen for a day or two sometimes it happens 3 times in 5 minutes.
Starting to think my phone is defective...
If you are on a custom rom try going back to stock and see if it's the same. If stock try to update profile
Sent from my t0ltespr
epicnoob66 said:
If you are on a custom rom try going back to stock and see if it's the same. If stock try to update profile
Sent from my t0ltespr
Click to expand...
Click to collapse
I've tried that and it's still dropping... Would PRL/Profile also effect my Wifi connection? All data connections drop.
chunology said:
I've tried that and it's still dropping... Would PRL/Profile also effect my Wifi connection? All data connections drop.
Click to expand...
Click to collapse
I'm having the same issue with Wifi. It'll still show as being "connected", but there won't be any data coming through. I'll have to toggle Wifi on/off to get it back. Sometimes it'll work for a couple of hours before having the data issue again, sometimes less than a minute.
I'm on stock, rooted.
Turn off the connections optimizer :banghead:
Sent from my SPH-L900 using xda premium
fatboypup said:
Turn off the connections optimizer :banghead:
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
Connections optimizer has been turned off AND frozen using TiB from day one. So that's obviously not it.
fatboypup said:
Turn off the connections optimizer :banghead:
Sent from my SPH-L900 using xda premium
Click to expand...
Click to collapse
enormous said:
Connections optimizer has been turned off AND frozen using TiB from day one. So that's obviously not it.
Click to expand...
Click to collapse
Connections optimizer is off for me too - My phone shows a clear signal disconnect and reconnect (The wifi bars/3g symbol disappears completely) during this time all data connections fails - including texts. This is happening when I'm staying in one area so it couldn't be a tower reconnection issue.
I'm going to try taking my phone into a sprint store today to see what they say.
chunology said:
Connections optimizer is off for me too - My phone shows a clear signal disconnect and reconnect (The wifi bars/3g symbol disappears completely) during this time all data connections fails - including texts. This is happening when I'm staying in one area so it couldn't be a tower reconnection issue.
I'm going to try taking my phone into a sprint store today to see what they say.
Click to expand...
Click to collapse
Ah, it sounds like our issues may be different then. My issue is solely with Wi-Fi (haven't noticed issues with 3G). When it happens for me the Wi-Fi icon in the status bar doesn't change, I just can't connect to anything.
Sent from my SPH-L900 using Tapatalk 2
enormous said:
Ah, it sounds like our issues may be different then. My issue is solely with Wi-Fi (haven't noticed issues with 3G). When it happens for me the Wi-Fi icon in the status bar doesn't change, I just can't connect to anything.
Sent from my SPH-L900 using Tapatalk 2
Click to expand...
Click to collapse
Yup, same here. Seems like the 3G radio does the same thing, but not necessarily at the same time as the WIFI. At first I thought is was only the WIFI too, but 3G is affected, though not to as severe a degree. My WIFI was actually disconnecting and failing to reconnect. Turning off connection manager made no difference. I did however notice that the WIFI at my work (WEP encryption) never seemed to do this (at least I didn't notice), so I changed my home network WPA to WEP and sure enough, it stays connected. Was still failing to load occasionally, so I went even further and changed the router to a single channel rather than "Auto" and set it to "N Only" (due to having a similar problem with a laptop I used to have, with a similar solution). Problem fixed. I'm using an Amped R10000 just FYI, not sure if it matters. Very annoying, and given the number of occurances being sufficient to start a thread, I'm assuming this is a common issue and will hopefully be fixed by a firmware update. In the meantime, we should probably all start calling Sprint daily and complaining. Maybe they're not even aware of it. Probably not enough of these phones in circulation yet for them to worry about it.
Mine will do this from time to time. Stock not rooted. I will have full 3g bars and full wifi bars and my data will just hang. If I turn off wifi everything works again. Some times when I load a game that has to connect to Facebook to play against friends I have to close the app/game, remove it from memory and reload it to get the data to work. Same thing for Pandora. It will load a song to 2% and hang until I stop wifi or reboot the phone. It's not an everyday thing but some days are worse then others.
Sent from my SPH-L900 using XDA Premium HD app
"Good to see" from the perspective I thought it was just me. Things described by others happening to me as well. Personally, I find I like the wifi/3g auto connectivity feature - when it works. Got my SGNII on Thurs last week, and connected to wifi at work on Friday no issues. This morning, the Note picked up my work wifi without a hitch.
At home, over the weekend, I was getting spotty connection, sometimes no connection to my wifi. (Disclaimer - I have my main wifi @ N/5ghz. An access point was added with wireless G via an old Netgear router-turned-AP.) After several attempts of moving the AP from one cat6 jack to another, I finally moved it to my main level. Oddly enough, so far, so good. Certainly possible the router's radio is pooping out.
What I notice happen with connection issues though seem related to the Note seeing my wireless G, trying to connect, but unable to do so until/unless I reboot my phone. After moving to the new location/jack, everything seems to work OK now (knock on wood).
Having said that... I also think the 3g radio (HW or SW?) is a bit wonky, as my old HTC Hero seemed to have more bars at home, IIRC. Whatever it is, just seems a bit lacking, IMHO.
Sprint is updating to LTE in many markets ive noticed my 3G drops says preparing networks and reestablishes the connection to 3G. I live in Fort Wayne and issue the permits for the tower co-locates and they are close to going live with LTE here so I know thats my problem. I can live with the flakiness for a few more days. I have not had issues with WIFI drops at home.
Sent from my SPH-L900 using xda app-developers app
The same thing has been happening to me here on Long Island. 3g drops and reconnects. Sometimes it doesn't and a reboot fixes it. I also notice after the disconnect and reconnect it states my PRL is unknown. I have done a PRL update many times, a Profile Update, a RTN reset, and a factory reset. This happens on the stock rom and any custom ROM. It's driving me insane!
hmm maybe mobile settings?
Ive found LTE/CDMA setting to be not so good.
Its providing me eHRPD signal which is stop and go web browsing is murder.
CDMA only setting is providing Rev A signal fast web browsing
Sigh, so it seems as if you guys are losing wifi/3g....is it affecting voice radios or LOS/dropped calls?
sledgie said:
Sigh, so it seems as if you guys are losing wifi/3g....is it affecting voice radios or LOS/dropped calls?
Click to expand...
Click to collapse
I haven't been on the phone when it's happened so I couldn't tell you - Nothing like the LOS on the E4GT. When the data connection does cut out it immediately reconnects. Doesn't really impair the functionality of the phone but it happens enough to be annoying. With a 300$ price tag I expect my device to be without defect.
sling said:
hmm maybe mobile settings?
Ive found LTE/CDMA setting to be not so good.
Its providing me eHRPD signal which is stop and go web browsing is murder.
CDMA only setting is providing Rev A signal fast web browsing
Click to expand...
Click to collapse
This ^, I have been having lots of problems with the Note 2 and connectivity. Especially with my airvana. Changing from LTE/CDMA to CDMA fixed all my problems including the random drop/reconnects with WiFi.
sledgie said:
Sigh, so it seems as if you guys are losing wifi/3g....is it affecting voice radios or LOS/dropped calls?
Click to expand...
Click to collapse
I'm not having LOS /dropped calls just data creep with LTE/Cdma setting enabled.
Speed test show same data speed numbers as CDMA only setting but when browsing data arrows tend to pause more making for slower page upload with LTE/CDMA setting enabled.
According to Sprint store tech such performance is common with that setting.
sling said:
hmm maybe mobile settings?
Ive found LTE/CDMA setting to be not so good.
Its providing me eHRPD signal which is stop and go web browsing is murder.
CDMA only setting is providing Rev A signal fast web browsing
Click to expand...
Click to collapse
I am on CDMA only. I should have mentioned that in my first post. This does affect phone calls too as ill be on the phone and the call will drop and the "out of service area" message comes up. It doesnt matter if I'm on my Airave or not. I tried different prls which doesn't seem to make a difference. I am starting to think there is something wrong with the phone as my girlfriends S3 doesn't do this. Maybe Samsung will release some sort of update to fix this issue.
Flak said:
This ^, I have been having lots of problems with the Note 2 and connectivity. Especially with my airvana. Changing from LTE/CDMA to CDMA fixed all my problems including the random drop/reconnects with WiFi.
Click to expand...
Click to collapse
I made the change back to CDMA only mode this morning and it has solved my WiFi issues as well. I was also struggling getting a GPS lock with LTE enabled. GPS toolkit would show 20/21 satellites found but it would never get a lock. After the reboot back into CDMA mode it locked in 5 seconds.
Sent from my SPH-L900 using Tapatalk 2
I've found that this phone's ability to transfer from 3G to 4G data is absurdly slow, if not completely useless. It also seems that it will never switch if there is data transfer in progress. The only reliable way to make it work is to airplane for about 10 seconds, then turn it back on. If there is 4G coverage, it will come back on immediately into 4G. Now that I think about it, the same thing seems to happen going from 1X to 3G as well.
Example of a common daily routine... When I leave work and walk outside, there is full strength 4G. But the phone will be sitting on 3G from when I was inside. It will not switch to 4G unless I airplane it first to cut it off and back on. The 3G data here is literally like a dialup 14.4 modem. So it will just sit there trying to sync or do whatever its doing until the cows come home. It will never change to the readily available 15mbs 4G data.
It is so bad, I had to make a tasker function to airplane, wait 12 seconds, and turn it back on. I made it a widget called "Reset 3G/4G".
Any way to fix this crap?
Sorry if I missed it but are you stock? Or are you rooted? Or are you rooted and running stock/custom ROM? If so, what ROM?
D
DatDude123 said:
Sorry if I missed it but are you stock? Or are you rooted? Or are you rooted and running stock/custom ROM? If so, what ROM?
D
Click to expand...
Click to collapse
Rooted with the FreeGS3 ROM.
My EVO had the same behavior where it wouldn't switch from 1X to 3G if there was active data transfer. Which makes no sense. That's like not changing lanes on the highway because you'll have to look in the mirror first.
MCL1981 said:
Rooted with the FreeGS3 ROM.
My EVO had the same behavior where it wouldn't switch from 1X to 3G if there was active data transfer. Which makes no sense. That's like not changing lanes on the highway because you'll have to look in the mirror first.
Click to expand...
Click to collapse
Maybe not, but the phone has to pause the connection, disconnect one radio, start up the other, wait for it to be on, connect using that radio, and then finally resume the data transfer.
I don't expect it to happen in a matter of seconds. But what you describe should not take 5, 10, 20 minutes to accomplish. It will not switch between 1x, 3g, and 4g so long as there is data transfer in progress.
MCL1981 said:
I don't expect it to happen in a matter of seconds. But what you describe should not take 5, 10, 20 minutes to accomplish. It will not switch between 1x, 3g, and 4g so long as there is data transfer in progress.
Click to expand...
Click to collapse
True, but it may just be the apps blocking it. If theyre using it, the connection wont get dropped until it goes inactive, if I remember correctly
Here's why that makes no sense. App needs data connection. Phone in 1x with a 20kbps connection, trying to download music or photos. 3g or 4g is available. But instead of switching to it, it will just sit there until the app crashes, or tomorrow when it is done downloading.
Hmm... I'm on stock rooted MB1, and I'm also roaming at work, but there's a somewhat reliable LTE signal right outside the building, and as soon as I walk outside, I see my phone go from roaming, to not roaming, and then I see it switch to 4G in a matter of seconds. I don't need to turn on or off airplane mode or any sort of trick like that. Maybe it's ROM related? Custom kernel related? I'm not saying it is, I'm just listing possibilities.
Then again, I'm also not trying to download music or photos when I see I have a 1x connection, though my current ROM doesn't really tell me if I'm on 1x or not, so I just don't do anything network intensive when in low connection areas.
I just changed some settings in the ##DATA# menu. We'll see if that helps.