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Hi guys (and girls),
I'm going slightly mad trying to figure out a stable setup for my O2X. I have been switching between the latest CM7 nightlies, and MoDaCo FR19. In general, CM7 gives me quite frequent black screens, and FR19 seems quite stable. However, there is one issue that is present in both ROMs.
I am unable to get a stable mobile data connection when I switch from WiFi. Sometimes it works, and sometimes it doesn't. To get it to work again, it sometimes works to switch to 2G only (and possibly back again). I have tried several different radios recently: 218, 606, and 622, all with the appropriate RIL. The mobile data connection for 218 drops in and out at random without any clear pattern. For the other two radios switching on or off 2G only seems to achieve stable connection. However, it does not actually seem to affect whether I get a 3G or 2G signal. The display can say H or G, even when 2G only is checked. Bluetooth did not work correctly with 606.
To top everything off, the GPS does not seem to behave consistently for a all the different radio versions.
I guess that people have different experience with different radios, so which radio are the guys in Norway using? Do I really have to slog through every released radio and spend the day checking each one of them? Can I expect to find a radio/from combination that blacks to give me a stable GPS and mobile data connectivity, as well as good WiFi?
I know this has been discussed numerous times before, but people never seem to reach any conclusions. I'm just looking for advice on how to proceed to fix my problem.
I'm on cm7 .77 and i honestly havent had a blackscreen since i flashed it (yesterday morning) + battery is good now. For me this is the most stable nightly so ill stick with it for 2 weeks on my holiday )
Edit: bb .502 ril 218(i think) dont have any problems with network switching btw
Sent from my Optimus 2X using XDA App
kolaf said:
Hi guys (and girls),
Do I really have to slog through every released radio and spend the day checking each one of them?
Click to expand...
Click to collapse
You probably have to, yes. This sounds more like a problem with the specific coverage in your area and how the phone interacts with the cell-towers than an actual problem with the phone. You may be in an area with weak signals from several stations, you may be in an area suffering from sudden bursts of noise, there could be a lot of reasons for why this is happening.
First thing I'd try is to upgrade to the latest official firmware (10C - 0622 for Norway), just to have a baseline for comparison. In theory this firwmare (and baseband) has recently been validated by the norwegian carriers, and should have the best chance of success.
Then you should probably do a manual scan (in phone settings) for networks, and pick one manually.
Also try using the INFO menu (*#*#4636#*#*) and see if choosing a specific protocol helps.
If you're still unable to maintain a stable connection, I'd say that'd be grounds for returning the phone for a replacement.
Weak advice, I know, sometimes there just aren't any quick solutions.
::Trym
TrymHansen said:
First thing I'd try is to upgrade to the latest official firmware (10C - 0622 for Norway), just to have a baseline for comparison. In theory this firwmare (and baseband) has recently been validated by the norwegian carriers, and should have the best chance of success.
::Trym
Click to expand...
Click to collapse
Thanks for your reply. Do you by any chance have a link to the firmware?
kolaf said:
Thanks for your reply. Do you by any chance have a link to the firmware?
Click to expand...
Click to collapse
Sort of. In this thread http://forum.xda-developers.com/showthread.php?t=1035041 you'll find complete ROMs of the previous versions. Install one of those with SmartFlash, then run the LG Mobile Update tool to get the latest.
::Trym
Okay, I see, downloading now. So it is good enough to use one of the smartflash files, I don't have to use nvflash?
kolaf said:
Okay, I see, downloading now. So it is good enough to use one of the smartflash files, I don't have to use nvflash?
Click to expand...
Click to collapse
No, you don't have to use NVFlash. The advantage of using the smartflash method is that you get a completely "factory fresh" phone, with all the stock content present (movies, music, pre-installed apps) and you're sure to get a matching baseband and ROM.
Note that you have to flash both files, both the baseband and the ROM. The LG update tool won't update if you have a "new" baseband on an old ROM.
::Trym
So the firmwares from that post do not include the baseband? Anyway, I'm currently running baseband 405, so I guess this is sufficient to get the new update. And the new update will then overwrite everything to the latest official version, both ROM and baseband, correct?
kolaf said:
So the firmwares from that post do not include the baseband? Anyway, I'm currently running baseband 405, so I guess this is sufficient to get the new update. And the new update will then overwrite everything to the latest official version, both ROM and baseband, correct?
Click to expand...
Click to collapse
Yes, it does. Each firmware pack comes with TWO files, the baseband and the ROM. To make sure you avoid any trouble, just flash them both, though, as you say, you can probably stay on the one you have, as yes, the LG Mobile Update tool will overwrite both the baseband and the ROM with the new versions.
::Trym
Flashing of old firmware, with subsequent upgrade to latest release for Norway is complete.
I got version V10c, with baseband 1035.21_20110622, kernel 2.6.32.9. My mobile data seems to be enabled as soon as I get mobile coverage (which admittedly is poor right where I live). Even though it pains me, I guess I should leave it as stock for a day or so to see how it behaves.
I guess rooting it shouldn't affect performance in any way?
My initial experience is that it is much more snappy than the stock firmware that the phone came with, but time will show
kolaf said:
Flashing of old firmware, with subsequent upgrade to latest release for Norway is complete.
I got version V10c, with baseband 1035.21_20110622, kernel 2.6.32.9. My mobile data seems to be enabled as soon as I get mobile coverage (which admittedly is poor right where I live). Even though it pains me, I guess I should leave it as stock for a day or so to see how it behaves.
Click to expand...
Click to collapse
Yeah, you probably should, as your mission right now is to find out whether you can get a stable mobile data connection or not.
kolaf said:
I guess rooting it shouldn't affect performance in any way?
Click to expand...
Click to collapse
Not to my knowledge, but I'd still advise you to wait a few days while sorting out the connection issue. Not that I think rooting it would affect that one way or another, but if you can't get it work as it is, you can return the phone in the state it is now, factory fresh.
kolaf said:
My initial experience is that it is much more snappy than the stock firmware that the phone came with, but time will show
Click to expand...
Click to collapse
It certainly is. It also *stays* snappy over time, which can't be said for the 10a/b versions.
::Trym
The first test drive with the new firmware has been completed. On the way out it switched to mobile data flawlessly, but a longer drive it started falling out and reappearing for only short periods. When we stopped at the destination seemed to stabilise with a 3G connection again.
For the return trip I selected use only 2G network. The network connection remained stable for the entire journey.
I will have to test more, but the conclusion seems to be that it has trouble switching between the 2G and 3G networks when moving. I will try the same trip with a Telenor SIM card, and with different combinations of enabling 2G and 3G modes.
By the way, what is the difference between forcing 2G in the regular settings menu and in the special information menu?
kolaf said:
I will have to test more, but the conclusion seems to be that it has trouble switching between the 2G and 3G networks when moving. I will try the same trip with a Telenor SIM card, and with different combinations of enabling 2G and 3G modes.
By the way, what is the difference between forcing 2G in the regular settings menu and in the special information menu?
Click to expand...
Click to collapse
The 2G only setting in the phone menu equals the "GSM only" setting in the INFO-menu. I'm far from an expert in these matters, this thread has an overview: http://forum.xda-developers.com/showthread.php?t=675136& of what the different modes do.
::Trym
More testing seems to indicate that as long as i leave "use 2G only" check, my mobile data connection seems to be pretty stable. It even switches between 2G and 3G, although apparently a bit more conservatively.
I guess I get to keep my phone anyway
Now for some rooting...
Just an update on the results from my testing. The second time I went out my mobile connection never appeared. This was with only 2G checked in the settings menu. In the Info menu, this corresponded to GSM only.
I then changed it to GSM auto (PRL), and then I got my intermittent mobile data again. I then change it to WCDMA preferred, and my data connection seems to be stable for now. This apparently requires much more testing...
F another chapter in the connectivity saga. Having WCDMA preferred selected in the Info menu, things mostly work, although the data connection drops sometimes.
Another problem I'm noticing with the stock ROM is that it usually is unable to reconnect to my home WiFi network when it comes within range. I have the money was selected to reconnect. Sometimes I even find it disabled in the list.
Alright,
First, Here is what im using currently:
My Own Rom
-Cooked with Dsixda's kitchen
-Based on rdannar's Barebones 10e froyo rom
-With my own custom bootanimation
-Go Launcher instead of SonyErricsson
-some various build.prop tweaks [hsupa cat.,lcd density(changing quite often so i can use a lower density and still use the market... ugh!)]
-And bedwa's thrillz v3 kernel cooked in
And my issue is:
At random times i will have a complete loss of service. Usually what happens is, im texting someone back and forth and when i go to text them back, my text wont send! so, i retry sending... doesnt work. Usually the only way i can make it work is to reboot, however a few times putting it into airplane mode and then back out has worked.
Now, i know what your thinking, its probably my rom... But i am fairly certain i had this issue when i was using just the barebones 10e rom, and i cant remeber exactly but i think i had the problem once back when i was on gtg465x's thriller v1.1.0 rom with my own OC kernel.
So, basically im just curious if anyone else has had this problem as well, or if anyone has a fix for me?
anybody who wants to post their:
-APN settings
-build.prop network categories
-and other build.prop settings
-or anything else
would be appreciated.
thanks
Had that problem
On every rom
Sent from my GT-I9100 using xda premium
Sounds like it could be many possible things... Myself I'm on Roadrunner and whatever beta kernel I'm tweaking with my Thrillz line (Currently on BetaV4.) and I haven't had any issues. Then again I'm not sending SMS/MMS. I do all of that through Google Voice as I have SMS blocked. (old UNL Data FTW)
Is it primarily when sending SMS or MMS?
Were you able to fix it ever rdannar?
I do a lot of texting so typically yeah it is when im using messaging but I'm pretty sure that a few of the times it has just been when trying to use the browser...
Usually happens once the screen has been off for a while, then I turn it on, try and use an app that uses data, and then it it just never connects... until I restart.
Sent from my LG-P925 using xda premium
Another question is have you guys tried one of the 920h basebands as well. I have a signal drop on rare occasion, but nothing truly affecting service. It has to be one of 3 factors. Kernel, Baseband, Rom.
I have tried everything except 920h... people have always reported signal drop with this device. The hard part is it only uses hspa + so it doesn't usually catch 3g signals much.... at least that's what I've read about... try and take out hspa and network tweaks out of the build prop to see if that helps
Sent from my GT-I9100 using xda premium
Hspa+ is nothing more than a network improvement on UMTS (Standard 3G). It almost sounds like the radio.
Yeah I don't know why, but every custom rom I've tried on this phone has crap signal.
Dec 14
On the 14th (wednesday) im gonna start chasing down the cause of my signal problems using some of your suggestions. I have to take my finals and finish up some final papers then i'm going to dive back in to trying to help make the thrill awesome.
bzlmnop said:
On the 14th (wednesday) im gonna start chasing down the cause of my signal problems using some of your suggestions. I have to take my finals and finish up some final papers then i'm going to dive back in to trying to help make the thrill awesome.
Click to expand...
Click to collapse
Good luck with finals and we'll be here
I think i figured it out!
So, finals went well... (i think), I still havent gotten my grades back...
But, i wiped data/factory reset, wiped cache, and wiped dalvik. Then flashed the latest Doomed froyo w/ OC (thanks Urabewe) just to have a fresh start. Finally, i started playing with the build.prop network tweaks and almost everything i did had a negative effect on network speed and consistency of the connection. [also, im pretty sure the doomed build.prop did not include any of the common network speed tweaks, i.e. hsdpa cat, etc.]
So, in short, i am pretty sure the build.prop stuff was my problem.
However, i am going to continue testing various ro.ril build.prop tweaks and various apn settings; to hopefully find out what build.prop tweaks will have a negative effect and if any will have a positive effect, and what apn setup works best. I will post anything significant i discover in this thread...
Thanks for the build.prop suggestion, i had suspected that was my problem...
Here's the situation: For about a month now I've been having issues with my data not working on my N1. Presently, I'm on Paranoid Android ROM, but have tried fixing the situation by flashing SpazeDawg, experiencing the same issue. My phone shows bars, and cycles between H, 3G, and E depending on where I am, but it's faded out, not blue; like it's not connecting. I do have voice and texting, however. I flashed the new Korean radio months and months ago, but I tried flashing back to 5.08.00.04, with no change in result. I've tried resetting the APNs to default, which after a reboot fixes the problem temporarily. I've run out of ideas on how to fix this, or isolate the problem. I'd rather not get rid of my N1, but the more I work on it, I'm beginning to think it is a hardware issue. Tried a new sim card, too! Any ideas on how to fix this? Thanks in advance.
I've been having similar problems ever since switching to ICS so I think it's just inherent. I've found that toggling data off and on again fixes the issue most of the time. So it's quicker solution than rebooting but still not ideal. Hopefully a fix appears but in the mean time I'm willing to live with it. For what it's worth, I've found Evervolv to be the most stable in terms of lost connection but YMMV...
Hi guys.
Since last week I've been having an issue. My phone ramdomly looses signal for like 10 seconds and it generates a folder named "bd-dumps" with 3 archives on it: ramdump_modem_fw.bin, ramdump_modem_sw.bin and ramdump_smem.bin.
I didn't changed anything on the phone when the problem started. I was running LiquidSmooth ROM (Very nice, BTW), and started noticing this issue. In fact, I just noticed because my phone was lacking memory.
Now, I've been searching about this issue, but none of the solutions have worked for me. Some say is a bad SIM Card, others a bad network, but I am pretty sure that the issue is not about that.
Everytime that I turn on Data services, it happens. When data services are off, it doesn't.
Anybody has have this issue or have any idea what is this about? I attached some screenshots. Thanks!
Edit: I already changed ROMS, flashed Stock with RSD and flashed modem, but the problem still the same.
This is old.
http://forum.cyanogenmod.org/topic/79890-modem-crashes-on-102-nightly-28-sept/
Been happening on CM based roms since 10.2 or before, for me it will only crash while on H+, 2G won't crash. Stock rom doesn't crash. Already tried buying a new SIM card too.
Devs are either unaware/not willing to look into it/not capable of reproducing since it only seems to happen to certain unlucky people, probably related to some types of networks, since my crashes only occur while on certain regions of my country.
On the other hand, if anyone capable enough is willing to look into this, i'd glady crash my phone a thousand times to generate logcats, dumps or whatever is needed to debug this ****, after all, this is a dealbraker for CM, this is a phone after all.
jaweinre said:
This is old.
http://forum.cyanogenmod.org/topic/79890-modem-crashes-on-102-nightly-28-sept/
Been happening on CM based roms since 10.2 or before, for me it will only crash while on H+, 2G won't crash. Stock rom doesn't crash. Already tried buying a new SIM card too.
Devs are either unaware/not willing to look into it/not capable of reproducing since it only seems to happen to certain unlucky people, probably related to some types of networks, since my crashes only occur while on certain regions of my country.
On the other hand, if anyone capable enough is willing to look into this, i'd glady crash my phone a thousand times to generate logcats, dumps or whatever is needed to debug this ****, after all, this is a dealbraker for CM, this is a phone after all.
Click to expand...
Click to collapse
In my case, it does crash on Stock too. That's my problem. I flashed with RSD to Stock and still the same.
I have also tried other ROMs but the problem still the same. Any ideas?
Thanks
Modem still crashes for me on anything not based on stock 4.1.1 / 4.1.2 - That said, latest PAC jbbl 20140825 has had the least, but persistent and consistently crashing at the same intervals.
I came from stock 4.1.1 latest ota to 4.1.2MX then PAC jbbl 20140825, only got about 6-7% signal loss. Where as all other roms 4.2 4.3 and 4.4.x have been similar results in the 20-30% signal loss.
In your case, if you've not realized since, your modem might be bad hardware-wise. Since you say it was working and then started suddenly, even on stock. Stock I get 0% signal loss.
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?
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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.
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.