Database Develop

[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
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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.

Loosing randomly 3G or telephone signal

Hi all,
Since about 1 year i'm a happy owner of the Galaxy Note. As the stock rom was quite crappy (eating battery like crazy) I decided to swap it with a CM10.0 flavor (Cookies & Cream).
Well, installing the ROM went fine and the phone worked great, except one thing.
Since the beginning that i'm using custom roms on this phone, i'm randomly having issues with the telephone or 3G signal. As I thought, maybe the ROM is full of bugs, I wiped the phone and installed the official CM10.0 ROM. Unfortunately that solved not my problem. Since a couple weeks ago i updated to CM10.1, and still having this issue.
However, some issues where solved since the last upgrade:
- First ROM (CM10 flavor, Cookies & Cream): randomly dropping the signal, and asking for a SIM pin. Sometimes even a restart was needed
- Second ROM (Official CM10): same as above, but less issues with the SIM, mostly signal related
- Third ROM (Official CM10.1: SIM issue gone, however the phone is sill loosing the data signal + sometimes even the telephone signal (restart needed).
When I loose my signal, something it's just the data connection (3G/H). The strange thing is that most of the time that this happens the data connection or telephone signal restores when I enable/open the screen by using the side/home button. Well, that's very strange as I have no power saving apps or something like that running.
But unfortunately this is not always the solutions. Usually 1x per 2 days I have to reboot the phone in order to bring the signal for telephone + data back alive.
SIM has already been replaced, with no luck. I did install this ROM on another phone (from a friend) as well - which had in the beginning the same issues, however things seems to be become stable (haven't heard him anymore)
I already tried different modems on my phone (XXLSA / XXLSX, currently using XXLSO), but none of them solved this loosing data/telephone signal.
It starts to drive me crazy, as I use this phone for my work too.... being unreachable is quite annoying
Anyone an idea what goes wrong here, or how I can find out why this phone is going nuts?

Nobody that could explain why my phone is having this behavior?

liteonit said:
Nobody that could explain why my phone is having this behavior?
Click to expand...
Click to collapse
+1

Trouble with dropping data signal on Turbo

I'm having major trouble lately with my turbo switching from 4G LTE to 1x, 3G, or even no signal or data signal at all. It seems to happen more when it hits 15% and the battery saver comes on. But when I turn battery saver off or hook it up to a charger it doesn't connect back up or do anything. I'm getting really frustrated by this because I cant seem to get my phone to re connect to 4G no matter what I do. I put it in airplane mode and even restart my phone; it wont work no matter what. I think its mostly because of the update to lollipop and its a glitch. I was wondering if anyone else is having this issue and if there's any way to fix it besides sitting there for a half an hour wiping the cache and not being able to use the phone.

I'm not experiencing that. Did it start right after you updated? Have you done a factory data reset since upgrading to the pop? Onethng you could try is going into setting and switching it from the factory global mode to 3G/4g and see if that helps. I haven't ever needed to with the turbo but others have and successfully avaoided doing an FDR. Lemme know if that works. We'll get this figured out.

Well I came from a rooted 4.4.4 so I had to reset it back to the original in rooted 4.4.4 in order to update. So technicly yes I did do a factory reset since the update. No I haven't had any trouble since the update until recently for some reason. I've got a signal booster at my house and wondering if my phone isn't trying to switch between the booster and the actual tower, causing it to take more power which makes it loose connection because it can't decide which one to connect to. But I have perfect 4G signal with the booster so I don't see why it would want to switch.

I wouldn't imagine that it would be the booster since you're signal is solid there, but it could always be a possibility. Have you tried switching from global mode under network settings to CDMA/LTE? That solved all the network issues I used to have with my old Razr Max HD. Also, have you taken the OTA that was pushed yesterday? Some people were seeing an increase in signal strength.

As a matter of fact, I updated right after I posted that comment. I didn't even know there was a update till I was looking at Google now and saw there was a small update out. I havent had any issues with connection since the update. I'll post back here if I do come into problems. Thanks for the help though.

Any time buddy! I sincerely hope that solved the issue!

Well I was using navigation earlier today and for some reason, not only did I completely loose my 4G data but it said I lost GPS to. My maps app continued to run but it didn't look like I was moving on the screen, even though I was. Guess the glitched didnt get completely fixed.

It's almost like it does it just at night and when I'm using a lot of data over 4G.

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).
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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?
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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.
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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.
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Click to collapse
No relevant priori messages within more or less 10 minutes.

wifi disconnects for unknown reasons

My SM-N900A has been working great for a few years now and is running Android 5.0 from an OTA update (maybe a year ago). A few weeks ago I started having trouble with the wifi. Sliding the wifi control to "on" will sometimes work, but more often it can't find any networks. Often rebooting will fix it, and the wifi will connect (showing a strong wifi signal). Sometimes I see it rescanning several times when I don't think it should be scanning. Then after a few minutes or occasionally up to an hour it will disconnect from the wifi entirely and refuse to show any networks as before. Sometimes I have thought that disconnecting the battery is a surer way to restart the wifi than just rebooting, but it is hard to be sure. This happens with my home wifi, as well as with several other wifi networks I have tried. I haven't dropped or damaged my phone, so I'm wondering if this could be a software problem. I have tried rebooting in safe mode, but the problem persists so I don't think this is caused by an errant application. I have also tried swapping in my spare battery, but that didn't change the problem (although neither battery is a genuine Samsung). If I leave wifi off and just stick to the cellular connection, the phone seems to work as it should. Would there be any logic to trying one of the alternate ROMs on this forum to see if this could fix the wifi problem? One reason I haven't tried this already is that the directions I've seen for installing these ROMs seem to be written for people who have done this dozens of times (which I have not). If this is a reasonable tack, is one of these ROMs known for its ease of installation, or perhaps for the quality and detail of its installation instructions? Are there any less drastic things I should be trying first (other than buying a new phone of course)?

Got the same issue. used odine reinstall 5.0 modem/radio and when that did work, i reinstalled 5.0 and 4.4.4 but nothing worked. i think its a hardware failure. time for a new phone.