Connection drops when switching off wifi - LG Optimus 2x

Here is the deal,
Phone worked pretty well since I bought it. I changed the ROM a couple of times and everything went fine.
But at some point, something changed and when now I switch off the wifi, the data connection doesn't work anymore. Also, as other users complain, it occurs when the phone enters in sleep mode.
Entering in Airplane Mode and exiting seems to solve the issue. Also, switching from 2G to 3G (and viceversa).
Things that might help:
I did some research and it seems strongly related to the Android 2207 Issue (you can google it, I can't post external links yet sorry)
It happens with every ROM that I try: CyanogenMod, MoDaCo and now with MIUI.
Also, it happens with BB 622 & 725 (with respective RILs). With 502 I don't remember having this problem, I would try again.
If someone else has this problem, share it with us. And if anybody knows how to solve it, it would be great
Thanks!

Related

Help me with my g1

My g1 have big problem, it loss signal all day, most the time. I tried turn on air plane mode and turn off, or retart the phone, wipe, up another rom, up newest radio version, use 2g network only. But it doesn't work.
It loss signal random, i can't control or do something to have signal again. even i change many other sim cards. but i discover one thing: seem this problem related air plane mode. because in some rom version, i turned off air plane mode but it didnt, even i restart my phone it still on. i must take out the battery for long time and put it again.
Some time it have signal again but it only for short time.
How can i fix this problem, please help me.
please someone can help me. my phone isn't a phone anymore
hhmmm...Try to upgrade to the latest radio for g1. If that doesn't help, maybe your rom has messed up apn settings or the service in your area dropped.
UberMario said:
hhmmm...Try to upgrade to the latest radio for g1. If that doesn't help, maybe your rom has messed up apn settings or the service in your area dropped.
Click to expand...
Click to collapse
I can add few things to this since I experience loss of signal multiple times every day:
I have 2 G1s. On both of them it happens:
1. Using different ROMS (CM, Super-D, OpenEclair)
2. Using different recoveries (RA 1.5.2 and 1.6.2)
3. At different times of the day
4. Using different radios (older radio and the newest one, sorry I can never remember the numbers)
5. Across different states ( I took one of them thru 5 different states and it kept loosing signal)
What happens is that I start a program that requires data (twidroid, FB, Gmail, Market) and I see my connection get stuck on the uplink, go away completely and restart the radio. Another way it will do it, is that it will stay on blank screen (or downloading screen) and there will be no uplink or downlink shown)
Tried: wiping, re-flashing radio, re-flashing rom, getting rid of few apps.
Anyone with any insight on this? I can get a log next time this happens if anyone wants to take a look.
Thank!
i tried many diferent rom, radio, and recorvery too. but it still doesn't work?
Now i discover that any connect in my g1 seem doesn't work. wifi can search but when i connected it can't open any page even google. gps can receavie signal, bluetooth can turn on but no one can see me or i can' connect to my headset bluetooth.
May i think it is mainboard's problem? i opened my g1 and see anten signal very perfect, don't have any space or something like that.

[Q] Wi-Fi To 3G

Hi,
Got a really annoying issue with my Nexus One that has been happening since the Froyo days, when I leave home to go to work I turn the Wi-Fi off on my phone to save battery. Sometimes I use the widget sometimes I go through the settings.
The problem is that the 3G doesn't alway's kick in, the only way for me to get 3G working is to turn my phone off and on which always works.
Any suggestions on why this is happening and how to resolve them?
I am running Stock Ginger Bread on my Nexus One on the the Vodafone network in the UK.
Try checking your signal strength: *#*#4636#*#*
You can try to enable 3G only and see if you can keep a signal.
My signal is sometimes intermittent due to topography. Stupid flat Ohio. Haha
HighTech216 said:
Try checking your signal strength: *#*#4636#*#*
You can try to enable 3G only and see if you can keep a signal.
My signal is sometimes intermittent due to topography. Stupid flat Ohio. Haha
Click to expand...
Click to collapse
Thanks, it won't be that though because once I turn the phone off then back on it's there. Also once I turn W-Fi off and 3G doesn't kick in, then it won't do untill I restart. Also another reason why I know this isn't the case is because even when I do this at work 3G doesn't kick in and there is a Vodafone 3G mast on the roof
never seen this problem before, but it sounds like something that might have to be fixed by doing a full wipe and reflashing your ROM. i know its drastic, so maybe do a nand backup first. then flash and see if the problem remains. if its still there, than just go right back to your backup and no harm and nothing lost. worth a shot.
RogerPodacter said:
never seen this problem before, but it sounds like something that might have to be fixed by doing a full wipe and reflashing your ROM. i know its drastic, so maybe do a nand backup first. then flash and see if the problem remains. if its still there, than just go right back to your backup and no harm and nothing lost. worth a shot.
Click to expand...
Click to collapse
I'm on a stock Nexus One unrooted so I shouldn't have to Root to fix an Android problem. Never Rooted before but considering it.
I got the exact same problem with Froyo and Gingerbread ROMs, can't remember if I had that issue with MIUI ROMs, but definitely with CyanogenMod ROMs.
Instead of rebooting the phone I suggest switching flight mode on/off it's faster than a full reboot
Haven't found any real solution yet and always thought I'm teh only one with that problem as I couldn't find any other person with that issue. Right now I'm testing different Radio/ROM combination and if that doesn't work I'll need to check if any app is causing the problem.
Any chance you are using Tasker?
Kelvino9 said:
I got the exact same problem with Froyo and Gingerbread ROMs, can't remember if I had that issue with MIUI ROMs, but definitely with CyanogenMod ROMs.
Instead of rebooting the phone I suggest switching flight mode on/off it's faster than a full reboot
Haven't found any real solution yet and always thought I'm teh only one with that problem as I couldn't find any other person with that issue. Right now I'm testing different Radio/ROM combination and if that doesn't work I'll need to check if any app is causing the problem.
Any chance you are using Tasker?
Click to expand...
Click to collapse
I used to use Tasker but uninstalled it when I thought that it was causing this, it wasn't. Thanks for the tip about airplane mode, worked a treat.

[Q] WIFI connecting intermittently. HELP!!!

Hey Everyone
I recently installed XXJVB (2.3.3) onto my sgs and it works really well. my only issue is that the wifi connects sometimes and sometimes it doesn't. This happens at home often and is really annoying.
Does anyone else have this problem?
And does anyone know how to fix it?
Thank you for any reply's
I haven't experienced it.
First thing to try before you go any further.
Turn off everything that connects to your Wi-Fi router. Unplug the router from the power supply for a minute, then plug it back in. When it boots back up, see if the problem still persists.
Also, Have you tried a factory reset prior to or after flash?
had that issue when I played around and installed a cpu tool from the market: my wifi acted up same as yours. As far as I could deduce it was because the power/sleep settings were altered -- beyond my pay scale. Uninstalled the offending program and rebooted: the whole system was hickey and media scanning was an issue. So, did a recovery restore in cwm and all is well again.
Suspect the issue is the set up for power management. sleep policy and the other internal setting sin the kernal being out of phase with each other. Do a retore to the last stable system you had.
I have also leanred the value in doing a complete backup before I play with any new themes and mods: that way restore bails you out!
Did you notice that on version 2.3.3 wifi sensitivity worse that on previous version?
Using "Wifi analyzer" application I found that on Gingerbread kernel signal weaker then on 2.2.1 by about 10 db.
I've tried to use modem JPY (from 2.2.1) instead of native JVK but it didn't help.
It looks like somewhere there are wifi parameters that should be configured properly.
SOLVED
Thank you everyone for you input
@electrotune1200
Thanks for your idea's. The whole turning router off and on worked. i feel rather stupid cause i have to do that often so that i can get my laptop to connect, never even crossed my mind to try it for my phone lol.
Thanks again everyone

Wifi Problems

Hi all
I have a strange bug with wifi and i dont know if its karnel or baseband related.
After the phone is not restarted for 40+ hours i cant turn on wifi connection it says error in setting.
I have to restart the phone so the wifi will work for another 40 hours. I tried it with stock and neoblaze karnel, froyo and leaked ginger roms.
This bug is always there the only thing that i have the same is the baseband 622.
tnx in advance
Sorry to hear you have this issue, I have it as well.
V10d an 725BB (which is supposed to fix this error). I have to restart the phone every 100 hours uf uptime.
Will wait for the GB update if not, it is going back to service.
Regards
I have the v20e leaked and its the same as froyo. I think its a karnel issue and all the stock and modified karnels have the same issue.
Deletko said:
Hi all
I have a strange bug with wifi and i dont know if its karnel or baseband related.
After the phone is not restarted for 40+ hours i cant turn on wifi connection it says error in setting.
I have to restart the phone so the wifi will work for another 40 hours. I tried it with stock and neoblaze karnel, froyo and leaked ginger roms.
This bug is always there the only thing that i have the same is the baseband 622.
tnx in advance
Click to expand...
Click to collapse
Let me guess: The lease time on the networks DHCP-server is 48 hours? If that's the case there's a write-up here: http://code.google.com/p/android/issues/detail?id=11236
Short version: A bug in Android itself; not renewing the lease properly if the DHCP-server doesn't send a server ID. Continues to ask for renewals and rejecting the DHCP-offers, and sooner or later getting kicked off the network for excessive requests. (and a few other things.)
Same here. Doesn't matter what ROM/BB/RIL I'm using. Wifi fails like clockwork after about 70 hours of up-time. I'm surprised this issue isn't more widely reported. Perhaps most people got fed up by the SODs so they simply reboot everyday?
And no, it has nothing to do with DHCP. The hardware just refuses to be switched on past a certain point. And it doesn't seem to matter how many times you've toggled it previously. It's likely to be a driver issue.
akyp said:
Same here. Doesn't matter what ROM/BB/RIL I'm using. Wifi fails like clockwork after about 70 hours of up-time. I'm surprised this issue isn't more widely reported. Perhaps most people got fed up by the SODs so they simply reboot everyday?
And no, it has nothing to do with DHCP. The hardware just refuses to be switched on past a certain point. And it doesn't seem to matter how many times you've toggled it previously. It's likely to be a driver issue.
Click to expand...
Click to collapse
Should be easy enough to test. Enter your wifi-settings and choose a static ip-address which is valid, but outside the dhcp-scope of your dhcp-server. If it still keels over at said time, then sure, it has nothing to do with dhcp. If it doesn't... (remember to reboot after choosing a static ip, as one of the consequences of the bug is that the phone keeps using ip-adresses it's no longer authorized to use until the next reboot.)
Its not the dhcp i know that much im an it manager working for internet provider. The wifi does not turn on i cant even search for network. Its says error starting wireless. U cant turn the wifi on untill u reboot the phone.
Sent from my LG-P990 using Tapatalk
Deletko said:
Its not the dhcp i know that much im an it manager working for internet provider. The wifi does not turn on i cant even search for network. Its says error starting wireless. U cant turn the wifi on untill u reboot the phone.
Sent from my LG-P990 using Tapatalk
Click to expand...
Click to collapse
Fine. I wish you good luck in solving your problem.
Same problem here... V10c.
It's not a problem in my network, my tablet, notebook and last phone (Nokia) never had problems with my home wireless network.
When I try to activate the Wi-Fi I just get the error status, I have to restart the phone to bring things back to normal.
Also, I don't leave the phone Wi-Fi on all the time, I turn on only when I need.
Finally decided I have had enough of this (and this too!) and followed this guide to automatically reboot my P990 daily.
http://blog.homelinux.org/?p=341
Before, I have wifi error randomly (MCR FR17 or 18 maybe), sometimes it can't turned on (error), only reboot can fix it.
But after I use FR19 and now Topogigi, never have that issue anymore.
Ive noticed this error only happens after i recharge my phone. I think im gona flash 0725 baseband and test it.
0725 on my phone, no wifi problems. but dont think it is releated.
I have the same issue but I think I can narrow it down a little, I'm on 0405 BB, will see if it changes after I update to 725 and MoDaCo Gr3.
Anyway here's the deal. I realised the "Wifi error" appears only when you have Wifi turned off for most of the time. It starts after about 30-35 hours of uptime with wifi off. If you have wifi on for most of the time, it will work normally, as soon as you turn it off the "counting" starts. When you reach a total of about 30-35 hours of wifi off, it won't turn on with the dreaded "wifi error" message. After that there are times it does start but rarely. I also noticed that as the "wifi off" time increases it takes longer and longer for the wifi to turn on. After restart it takes about 1-2 seconds. After 15-20 hours of "wifi off" time, it takes 5-6 seconds. Looks like if wifi doesn't start in 10 seconds the OS will automatically declare it an Error. I tried to do a logcat and only thing I got was something about wireless.ko not reachable or smth like that. It's almost like there's a memory leak or smth in the baseband that is triggered only when the wifi is off. Doubt it's something like that but the description itself fits.
It's pretty annoying. I try to keep the wifi active for most of the time but it consumes battery when I'm outside (constant scanning). I would be grateful if someone else could look into this problem cause I doubt it's a hardware issue. I'm updating to Gr3 and BB725 next week so I'll let you know how it goes.
I have the wifi error too and while I used to reboot, I have found another workabout that doesn't require reboot. That is to switch on airplane mode. On wifi. Off airplane. On wifi. Wifi will normally connect after 1 or two such cycles.
Turned off WiFi today so I can test your method. It will take another 24 hours for the "WiFi Error" to appear. Hope this helps although I've already tried Airplane Mode and similar stuff. Unfortunately it doesn't help much if I have Tasker to turn on WiFi.
I tried you solution and it only worked when I first got the "Wifi Error". After some 8 further hours it doesn't help any more. "Wifi Error" started late last night. Airplane switching helped then (but also did multiple On-Off on Wifi). But this morning (I left it on 3G while it was charging just to test further) it didn't help anymore. :/ We'll see if new BB and ROM changes anything.

Ongoing 3G issues with Galaxy S3 mini

Hello guys,
For the past year or so I am having intermittent problems with my 3g connection. It just loses the connection with the mobile internet without any error messages and the only way to fix this is rebooting the phone. At first it happened every couple months but the intervals between connection losses seems to get shorter. The last few months it was every 10-14 days, now it's every 5 days. Since a reboot seems to fix this I don't think there is a physical defect on my 3g chip but the shortening intervals are somewhat worrying. I checked my APN settings multiple times and I've called my carrier's tech support several times but they too can't seem to find anything wrong with my APN settings. I'm currently using a custom ROM (OmniROM based on Android 4.4.4 with the Stagefright patch included) but this problem existed even in the original ROM so I doubt it's a kernel/driver issue. Is there anyone knowledgeable enough to pinpoint the problem or at least help me in the right direction because it's becoming a bit annoying and I dislike not being able to figure out WHY something happens. ^^"
The issue you have mentioned applied also to my phone, but it appeared for the first time after installing Omni from golden-guy. I haven't observed it on my stock rom. At the very beginning, I was able to mitigate the issue by turning airplane mode on and off. As you mentioned, the issue's frequency was increasing over time, leading to more than one signal lost per day. Airplane mode solution stopped working. I have also tried to kill (and got restarted) rild, as well as radiod - with no luck. Logs (I haven't checked kmesg) revealed nothing. I'm not sure the details of your issue, but I was loosing the whole GSM/WCDMA signal, not only the Internet access. Meanwhile, the system seemd to be looking for a network, draining my battery.
I still hope that the solution was to replace my SIM card with a new one from the operator. After that, about a month ago, the issue happened only once, and airplane mode on and off solved it. It's worth to notice, that turning airplane mode on took quite long time, about 30 seconds.
I'm having GT-I8190, Omni version 4.4.4-20151108, baseband I8190XXAMG (I'm not sure if it is distributed along with the rom, or maybe resides on different partition, and is not updated with the omni rom releases).
f_ranek said:
The issue you have mentioned applied also to my phone, but it appeared for the first time after installing Omni from golden-guy. I haven't observed it on my stock rom. At the very beginning, I was able to mitigate the issue by turning airplane mode on and off. As you mentioned, the issue's frequency was increasing over time, leading to more than one signal lost per day. Airplane mode solution stopped working. I have also tried to kill (and got restarted) rild, as well as radiod - with no luck. Logs (I haven't checked kmesg) revealed nothing. I'm not sure the details of your issue, but I was loosing the whole GSM/WCDMA signal, not only the Internet access. Meanwhile, the system seemd to be looking for a network, draining my battery.
I still hope that the solution was to replace my SIM card with a new one from the operator. After that, about a month ago, the issue happened only once, and airplane mode on and off solved it. It's worth to notice, that turning airplane mode on took quite long time, about 30 seconds.
I'm having GT-I8190, Omni version 4.4.4-20151108, baseband I8190XXAMG (I'm not sure if it is distributed along with the rom, or maybe resides on different partition, and is not updated with the omni rom releases).
Click to expand...
Click to collapse
Did you check logcat? If you didn't then logcat might show what the problem is. And your problem sounds more severe than mine. I only lose 3g but I can still call and send text messages. A problem with the simcard might be possible but it could also be a physical problem with the simcard slot though I can't say why rebooting or turning airplane mode off and back on would fix that.
Sahri said:
Hello guys,
For the past year or so I am having intermittent problems with my 3g connection. It just loses the connection with the mobile internet without any error messages and the only way to fix this is rebooting the phone. At first it happened every couple months but the intervals between connection losses seems to get shorter. The last few months it was every 10-14 days, now it's every 5 days. Since a reboot seems to fix this I don't think there is a physical defect on my 3g chip but the shortening intervals are somewhat worrying. I checked my APN settings multiple times and I've called my carrier's tech support several times but they too can't seem to find anything wrong with my APN settings. I'm currently using a custom ROM (OmniROM based on Android 4.4.4 with the Stagefright patch included) but this problem existed even in the original ROM so I doubt it's a kernel/driver issue. Is there anyone knowledgeable enough to pinpoint the problem or at least help me in the right direction because it's becoming a bit annoying and I dislike not being able to figure out WHY something happens. ^^"
Click to expand...
Click to collapse
I just wanted to confirm that I have similllar issue with 3g data connection. S3 mini with I8190XXAMG4 baseband. Stock ROM used for last few years (without any significant issues with 3g data connections), upgraded to latest CM11 20151017 from maclaw/novafusion. I noticed that there are some glitches with 3g data connections. Sometimes I need to tap few times before connection finally is being established. Funny thing is that I have second s3 mini with the same CM11 20151017 and all is OK.
I tried a lot of another ROMs; fifferent version of CM11, OmniROM (4.4.4 and 5.1.1), CM12.1 - problem remains - issues with 3g data connection. Is there any solution to get rid of this 3g data issue?
Sahri said:
Did you check logcat?
Click to expand...
Click to collapse
Yes, logcat (main, radio, events) revealed nothing but just signal drop to 0%. At that time, I didn't know about kmsg and system logcat buffer, so I haven't checked them.
Sahri said:
I can't say why rebooting or turning airplane mode off and back on would fix that.
Click to expand...
Click to collapse
Just tried this, and it helped. Usually, when something is not working, people try to turn it off and on again.
I always had rare glitches with mobile data connectivity, and turning mobile data off and on again always solved the problem. I think our problems my be hardware related. I suppose my old SIM card could have buggy software, i.e. advertising to support some newer protocol, but actually didn't. After upgrading, the phone tried to use the new advertised protocol, and got confused, or made the SIM confused.
I also know about cases, when SIM card simply died without any reason.
I used Note 2 about two years, flashed different roms and never had troubles, but then my friend used it about 3 months on 5.0.2 custom and got troubles with gsm/wcdma. My next samsung phone become our beloved i8190. Flashed it from stock to 5.0.2 CM, than 5.1.1, after month got first Cellular bugs. Tried another LP and some KK roms, my troubles with baseband became more and more frequently every day, flashed different modems, changed much settings in system.. So I was desided that it's all HW problems, and hated Samsung for such failure. But one day just tried to install Project Noble, and all this troubles gone forever. So it's just drivers, which not optimised for new Android versions. 4.1.2 mixed with old TouchWiz after fresh and clean Lollypop feels horrible, but we can do nothing with it.
f_ranek said:
Yes, logcat (main, radio, events) revealed nothing but just signal drop to 0%. At that time, I didn't know about kmsg and system logcat buffer, so I haven't checked them.
Just tried this, and it helped. Usually, when something is not working, people try to turn it off and on again.
I always had rare glitches with mobile data connectivity, and turning mobile data off and on again always solved the problem. I think our problems my be hardware related. I suppose my old SIM card could have buggy software, i.e. advertising to support some newer protocol, but actually didn't. After upgrading, the phone tried to use the new advertised protocol, and got confused, or made the SIM confused.
I also know about cases, when SIM card simply died without any reason.
Click to expand...
Click to collapse
But if it's hardware related, wouldn't you think that rebooting our phone or turning airplane mode on and off wouldn't fix it? And did you see in the logcat log if something happened before the signal drop? Sometimes events prior to the signal drop can also tell something about the cause.
Sahri said:
But if it's hardware related, wouldn't you think that rebooting our phone or turning airplane mode on and off wouldn't fix it?
Click to expand...
Click to collapse
Hardware could also have its state, which may get corrupted and reset on reboot.
Sahri said:
And did you see in the logcat log if something happened before the signal drop? Sometimes events prior to the signal drop can also tell something about the cause.
Click to expand...
Click to collapse
No relevant priori messages within more or less 10 minutes.

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