The issue: You go into menu -> wireless & networks and check the box for 4G. You watch it say "Turning on..." for a while, it looks like it does something for a split second, and then it turns off, and the box is no longer checked.
I just resolved this by accident (for myself anyway, ymmv) and I haven't seen this issue/resolution identified here yet, so here you go.
Are you using switchpro? Remember the issue where it would turn on 4g on reboot? Well, that was resolved in the most recent version, but it looks like the widget is still broken as it relates to 4g.
It looks like if you use the switchpro widget to toggle 4g on or off, it works fine and will scan for networks, and stay connected. But if you try to turn it on through menu and wireless networks, it turns off immediately. Also, if you turn it on through SwitchPro first, then you can turn it off and back on through wireless networks, and it will keep connecting fine,until you use switchpro to toggle it off.
Wierd, huh?
Thank you! I was having the same issue and couldn't figure it out. I don't have 4G in Denver so I've never seen it happen yet. I'm visiting in Orlando and was trying to test out 4G when I came across this issue.
holy cow thanks for posting I wish I would have got to a computer sooner to do a search I did a nand restore after flashing myn rc4, then still had issues, flashed again and it worked until I restored my apps and was getting ready to go through one by one. I am so relieved lol thanks a lot
I had this same problem before as well but for me it was System Info Widget causing the issue. It only happened when I restored it with Titanium. If I redownloaded it from the market everything was fine.
I had the same issue I did a nand restore and it fixed the issue than flashed to the rom I wanted.
Thanks OP. I didn't realize you had to exclusively use switchpro for 4g. It was driving me crazy the last day as I tried to figure out which one of my 96 apps was causing the issue!
Thanks OP.
Just had the same issue creep up on me. This solved it.
Related
Hello,
I have spent a lot of time reading and studying rooting and working with my Evo. I have rooted clockworkrecovery, and I'm running Ava Froyo's 2.2 software.
When I tried to get 4g, I replaced the wimax and radio files, and I removed the root data/misc/wimax tree.xml file.
I did all of this on the way to Austin, Texas, and it repaired and worked great for the couple of days that I was out of town... Then, when I got home, it stopped. I tried to do the same thing again to fix it, but it would only scan, quickly find the 4g, turn it on, and then almost immediately disconnect it.
It feels as though my 4g mac address has been blacklisted in my home zone, but not away from home. When the mac address reloads, it replaces it with the same alphanumeric, but it just seems to have locked me out of the system locally in Houston, in my home.
Anyone have any ideas on what might be going on or how I might fix it?
Thanks,
Jimmy
Are you using Switchpro Widget to enable 4G? I had a problem with my 4G just turning off immediately and it was because of the widget. If you are using that try enabling it from the settings or from the Power Control Widget (stock).
I'm having a 4G battle of my own right now so I have to see if I can figure out how to fix my 4G on a Mac since the instructions around here seem to be for PC. Hopefully that helps.
Hi, thanks for your response...
No, I don't have Switchpro widget, but I actually DID figure out exactly what was going on.
When I got home, I turned on Wifi. Wifi seems to disable 4g engagement. Even after 4g is running already.
I was under the mistaken assumption that I needed Wifi running to wirelessly tether to my laptop. I turned off the Wifi, turned on 4g, and, finally, it came on!
Then I turned on the wireless tether without, still without the wifi running, and it WORKED!
This drove me around and around, but, now, it finally works.
At one point of my studies, I thought that I read that the wifi was required to be running while the 4g was running. I don't know what that was all about. I'm just confused sometimes, and I don't have any explanation for this other than the outcome.
Thanks for the help, I'm going to look at Switchpro, but it's working now. I hate to mess with it, if you know what I mean.
Jimmy
If it ain't broke....you know the rest. My 4G connects but I can't browse so I have to look into it tomorrow.
Sent from my PC36100 using XDA App
I would recommend root explorer, saved me SOOOOOOO many headaches with dealing with root stuff and that pesky tree.xml in the data/misc/wimax folder... I tried for so long to do what it was supposed to do, only to have it all solved with one small purchase. Worth it to me! I would think that it would help you not have to deal as much with the Mac, especially code that differs from the PC.
Jimmy
I already purchased it. One of the best purchases you make.
Sent from my PC36100 using XDA App
This started happening to me couple days ago. My phone is connected to wifi at home, and whenever I want to use my phone after its been in idle, everything looks normal. The wifi signal is there, but there is no data, I cannot check email, browse internet, anything with data. Only way to fix it is to reboot or turn wifi off and then back on. Everything is fine when I'm on 3g, there are none of these issues. I am on Calk 2.7 (not 2.8) with the latest kernal, EL28 (I think thats the latest).
If I have an app running in the back that is constantly using data (google music) (recall, ONLY on wifi, NOT 3G), the app stops working whenever the phone goes into idle, I guess. Basically leaving a data consuming app ruining in the background did not help the issue.
I have tried searching, and some other people have experienced the issue on different devices (NOT epic touch), but no threads offer any solution(s).
Any help would be greatly appreciated.
Sent from my SPH-D710 using xda premium
I had this issue on my previous epic touch and I took it back and exchanged for another one and the one I have now doesn't do it. It had the same problem u describe. Might want to check your router first though since it just started. Mine always did it and it did it on other Wifi networks. Good luck.
Sent from my Nexus S 4G using xda premium
I've seen this happen on four different E4GTs. It seems random and only occasional. I've seen it on EG30 and EK02 stock, I haven't tried other "modems" or roms yet. I'm not sure what causes it, but a quick wifi toggle seems to fix it. Seems like the wifi radio just sort of "freezes. " Wifi sleep policy set to never, doesn't seem to make a difference. Minor annoyance.
Sent from my SPH-D710 using XDA App
What baseband are your running? Have you tired another baseband?
I didn't think the modem has anything to do with wifi. I have this issue on certain wifi networks I use. I have made tweaks to see if it is security settings or what but haven't figured out a pattern yet. I use a wifi widget and it looks like DHCP hangs up cuz it won't give it an IP. I reboot the wifi router and it works right after evertime. I will sometimes powercycle wifi on the phone and it will work. I really think it is a wifi router setting for the network but not sure which yet.
im trying for a week now to get around an issue that is costing me my nerves and renders my phone useless, especially on travel without roaming and data-plan. after screenoff my nexus kills the wifi connection, after some time though, 30 minutes, 1 hour, it seems to change. my company uses skype as the primary means to communitate and i'm just cut off, won't receive important mails, messages, whatever.
when i switch my phone back on wifi starts up again, if im quick enough the settings reveal "avoided poor internet connection" in the hotspots status. so basically it looses the signal for a moment and is not able to connect back on its own. i read 4.0.1 had a setting to circumvent that but since 4.0.2 it's gone. of course keep-alive-during-sleep is checked to "always" in the settings and i tried just about anything, changing basebands, factory resets, cache wipe, etc. nothing helped. the weirdest thing i that the battery stats to not reflect it, the blue wifi line is uninterrupted all the way.
i searched and found dozens of people complaining about this but no solution anywhere. they switched phones and had the same problems still. from little fragments i collected it seems that samsung devices had this issue before, cm7 supposedly fixed a hardware driver that had issues with certain wifi devices on certain frequencies.
im on AOKP b27 now (powersaver on or off with setting to untouched or "leave on" made no difference), leankernel, xxkl1 baseband. today i went back to stock 4.0.2 to see if that does something. still, has anyone here similar problems and maybe even solutions? what about the cyanogens "nexus one sleep fix" i read about, anyone can provide links or informations?
Did you try settings - wifi - menu - advanced - keep wifi on during sleep - always
Sent from my Galaxy Nexus using xda premium
Try changing that setting. I know 2.x defaulted to turn wifi off during sleep but I thought they changed that in ICS. Either way that sounds like the problem.
its not that setting, it's the first thing i checked. it's set to "always" and it should never kill wifi in theory. from what i have read by now it seems more of a wider problem, a software or hardware related issue affecting all nexus devices. most people don't know about it since it only fails for certain routers having certain settings (which other phones digest without problems though). i also never knew it until i had to stay one month in a place with a wifi-hotspot my phone doesn't like. my gf's s2 has no problems at all, neither have our laptops.
here on xda people have switched their devices because of that problem, got new ones and the problem persisted. i have installed roms, kernels, stock-images, basebands, nothing helped and i am sure the problem won't go away if i exchange the device. i knew i'd probably not gain much by asking again, threads like this can be found here, on rootzwiki, google, etc., but i was hoping to gather a little more knowledge. to read about cm7's patch for a similar issue on the nexus one gave me hope that something must be out there ...
btw, stock ICS seems to have the best reception by now, it stays connected for hours. but once it looses it, it won't re-connect aswell. my experiences are worse with AOKP. and it sucks because i love that rom so much. i guess when i'm home again it wont bother me since my own wifi is okay - but man, here, in another country it really hits me.
i had the same problem, seems like the connection would drop when the wifi signal is weak regardless of what settings you choose. i saw this problem on 4.01 and 4.02 stock, and apex rom. i had to switch to a router that could broadcast a stronger signal. i would get about 80-90 dbm with the old router and the new gone give 60-70 dbm. it seemed to have fixed the problem, i havent seen my gnex drop the wifi since i got the new router a few weeks ago.
Ive heard some people have a bug with wifi sleep policy setting not working. But mine seems to actually work. Set to "never" is the best choice and after hours of screen off my wifi is still connected.
Maybe try that setting a few times to kill the bug.
“never"should actually kill wifi immediately after screen off I think. If it doesn't that would be just another bug. I read somewhere that for some people setting it to never resolved the issue but i tried pretty much every setting by now, nothing worked out though. I became so desperate I installed wifi monitor apps that reset wifi after they figure it got dropped, but not even these patches could revive it in some occasions. The only thing that works for sure is switching on the screen every now and then.
It's a wifi sleep policy. So never = never sleep.
Weird, mine says "keep wifi alive during sleep": always, when plugged in, never. our I miss something and there's another setting I haven't tried yet.
this may fix ur problem... for rooted phone
http.s://play.google.com/store/apps/details?id=co.in.zextr.wcf&hl=en
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Click to collapse
do you have " avoid poor connections" unchecked?
martonikaj said:
It's a wifi sleep policy. So never = never sleep.
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Click to collapse
How do you get that? It says "Keep Wi-Fi on during sleep", which implies "never" would always keep the Wi-Fi off during sleep.
Hello,
I've searched around the Epic 4G Touch forums as best I could, but sadly I couldn't find anything that was exactly this problem (although I found some interesting articles about wifi sleep time but they don't seem to apply). I'm experiencing an annoying issue where I can connect Wifi just fine, but if the phone is left for a small period of time (~10 minutes), wifi appears as if it's still connected, however it cannot send/receive data. When this happens, the wifi status says it's "connected", but there is no data connection. The only way to to get the data back is to turn off wifi, wait for 3/4G connection to initialize, then turn Wifi back on to refresh it...then it's fine again until I set the phone down again.
I had this problem on stock EL29, so I rooted and flashed Phantom Blazer ROM (very cool ROM, but I'm still experiencing the same issue). After reading the threads on here about wifi sleep times (apparently they're backwards with ICS roms), I've experimented with every setting, yet I still have the same issue--Wifi is fine as long as I'm using the phone, I set it down, after about 10 minutes pick it back up, says it's still connected, but no data connection.
has anybody experienced this problem with this phone? I'm about to unroot my phone/go back to factory so I can take it in to a Sprint store, the problem is they (trying not to be offensive) don't seem to know very much about this device. I thought I'd ask the pros before I return it, get an iPhone, and have to eat my words about how cool Android is vs. iPhone in front of all my friends. I'm hoping there's a reliable ROM or app that can resolve this vs. having to just replace the device!
Thanks for your help!
I'm not the only one
I'm not the only one with this problem:
edit: I can't post links to androidforums.com or anywhere else, but this same problem is all over the interwebs and nobody has a solution.
I'm sure it's not my router as my ASUS tablet/laptops/girlfriend's iPhone experiences no connectivity problems. I'm thinking this is a hardware problem with some of these devices. I will unroot/reset to factory tonight and let you know what happens.
What channel is your router on? And what type is it A/B/G/N?
This is s known TW ICS bug, most likely kernel related. Almost everyone is having this issue and there is no fix until Samsung decides to repair it. There are quite a few posts similar to this one. If you're using XDA's search function, it's not very good. Try using Google next time and search XDA that way.
Sent from my SPH-D710 using Xparent ICS Tapatalk 2
Hey guys, thanks for the response. Just before I unrooted/reset to factory I tried one last solution--download an app called "Wifi Fixer". It has resolved a lot of these problems. It's not 100%, but after testing it for a day so far, I've only had to manually refresh the connection once or twice. It's a lot better, even liveable, and I won't be resetting to factory afterall, at least not until Samsung provides an update. So if anyone is having the same problem, try Wifi Fixer, hopefully it gives you a similar level of success...I'm not super happy about having to run another background process all the time, but it doesn't seem to affect battery, and the fix it provides is worth it to me.
Cheers!
Huh - a couple of things. Noticed this problem crept back in FF18 and didn't know why until I went back and checked the wpa_supplicant.conf that I'm using. The line ap_scan=2 was missing; after adding it back in the signal strength is back to full and stable.
I'll bump the thread but it appears the config changes here still hold after all:
http://forum.xda-developers.com/showthread.php?t=1569348
This should also avoid having the WiFi fixer there as you can specify the country in wpa_supplicant.conf manually.
Thanks for looking in to this! A couple questions from a noob like me though:
When you say the problem crept back in FF18 ... what does that mean? Is that something that exists in the "stock" version of the Epic 4G touch from Sprint?
The manual config file tweaks you're describing ... is that something I can perform myself?
Basically I'm wondering if it's "safe" to revert to stock in order to get consistent wifi signal, or if it's something I'm experiencing because of the ROM I'm using.
Thanks!
I've searched and seen a ton of wifi threads but couldn't find this particular problem.
Something is making my S3 wifi get stuck scanning constantly. This part seems to be a common problem; the weird thing in my case is that even though the phone is constantly scanning it is not refreshing the list of SSIDs. So even though I am home and it is scanning, it doesn't show my SSID or any of the SSID's in the vicinity. It shows a bunch of SSID's which it picked up at some point while I was out and it is stuck on them. Also, when this is happening it doesn't show the "remembered" networks which are not in range. Usually you see all those at the bottom of the SSID list.
If I turn wifi off then back on again nothing changes. It displays the same obsolete list of SSIDs and keeps scanning.
If I toggle airplane mode then the phone actually refreshes the list of SSIDs and it stops constantly scanning. And it shows the list of remembered SSIDs which are not in range.
Keep in mind that updating SSID's isn't totally broken. When I leave the house it's working fine on my home SSID. After I leave it is obviously updating the list of SSIDs for a while but at some point it just stops updating the list but keeps scanning.
Any ideas? I'm stock & rooted 4.3.
I feel like I've posted a million issues in the last few days. I recently got a refurb S3 from Sprint that is a complete POS. My old phone was rock solid until the power button crapped out on me.
uscpsycho said:
I've searched and seen a ton of wifi threads but couldn't find this particular problem.
Something is making my S3 wifi get stuck scanning constantly. This part seems to be a common problem; the weird thing in my case is that even though the phone is constantly scanning it is not refreshing the list of SSIDs. So even though I am home and it is scanning, it doesn't show my SSID or any of the SSID's in the vicinity. It shows a bunch of SSID's which it picked up at some point while I was out and it is stuck on them. Also, when this is happening it doesn't show the "remembered" networks which are not in range. Usually you see all those at the bottom of the SSID list.
If I turn wifi off then back on again nothing changes. It displays the same obsolete list of SSIDs and keeps scanning.
If I toggle airplane mode then the phone actually refreshes the list of SSIDs and it stops constantly scanning. And it shows the list of remembered SSIDs which are not in range.
Keep in mind that updating SSID's isn't totally broken. When I leave the house it's working fine on my home SSID. After I leave it is obviously updating the list of SSIDs for a while but at some point it just stops updating the list but keeps scanning.
Any ideas? I'm stock & rooted 4.3.
I feel like I've posted a million issues in the last few days. I recently got a refurb S3 from Sprint that is a complete POS. My old phone was rock solid until the power button crapped out on me.
Click to expand...
Click to collapse
have you tired a data reset?
just backup first (incase it doesn't work) factory/data-reset, wipe partition cache and dalvik cache.
if it doesn't work you can restore your backup to get back where you are now.
jdelano said:
have you tired a data reset?
just backup first (incase it doesn't work) factory/data-reset, wipe partition cache and dalvik cache.
if it doesn't work you can restore your backup to get back where you are now.
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Click to collapse
I haven't tried that. I appreciate the advice but this is usually the first thing Sprint tech support would recommend. I come to XDA for better suggestions
Besides, I can't easily make a backup, I'm rooted but still have stock recovery so no way to make a true backup.
uscpsycho said:
I haven't tried that. I appreciate the advice but this is usually the first thing Sprint tech support would recommend. I come to XDA for better suggestions
Besides, I can't easily make a backup, I'm rooted but still have stock recovery so no way to make a true backup.
Click to expand...
Click to collapse
Absolutely true, though sometimes the easiest and most obvious steps are actually the ones that work.
good luck, I hope you find a solution that works for you.