yashsingh1/xdaforums huggingface dataset:
[Defy Q&A, Help & Troubleshooting] htcmaxx:
That’s the way I can solve it, too. Data drops happen in very different situations, even while transmitting data via Bluetooth tethering.

Today I have switched baseband from 3.4.x to 2.34. But that seems too easy, as (for me) the problem exists since first update to CM9 three months ago. A lot of people are chasing the rabbit. We’ll see …

UPDATE 1: data drop after 13 hours using baseband 2.34

UPDATE 2: data drops after some hours using basebands 3.4.2.164-3 (France) and 2.51

UPDATE 3: data drop after one and a half day using baseband 3.4.2-145 (and changed to nightly 2012-08-17)

UPDATE 4: some data drops after one day using baseband 2.21

UPDATE 5: since Quarx nigthly 20120822 new problems with baseband 2.34 (lost signal completely, needed to restart phone)

UPDATE 6: data drop after one and a half day using baseband 3.4.x as expected

… have to stay at 3.4.x, because 2.34 does not work anymore

Maybe it’s not a software or baseband problem, but caused by O2 Germany network or their SIM cards instead.

On a netbook device I get disconnects (internal device reset) only using O2 SIM Cards, but not with E-Plus and Vodafone.

htcmaxx (really old username)

Defy+ Quarx CM10 nightly 2012-08-25 / O2 Germany
[Defy Q&A, Help & Troubleshooting] je198ß:
o2 Germany

Defy with Defy+ ROM (10-20120812)

I switched the Basbeand to Europa 2.21 .... for almost 20 Hours no connectivity issues.

----

Edit: Many drop outs at the weekend :(
[Defy Q&A, Help & Troubleshooting] blaisecardoz:
Connectivity bug

Why is this connectivity bug is not been worked upon, since it was found in CM9.... its long time no fix on this...:(
[Defy Q&A, Help & Troubleshooting] vpaiva:
I'm still having issues with Quarkx cm10 17/08...

Btw, am i the only one having problems with wifi on cm9?
[Defy Q&A, Help & Troubleshooting] blaisecardoz:
Its working for me....when you install very few apps...and use hwa for few important things it works with few discoonections.. its 1 day 6 no discconnections..
[Defy Q&A, Help & Troubleshooting] Shiboneko:
Testing now 17-08.

Called someone, application phone closed unexpected.

Phone rebooted and now i got the phone application in my task bar with the active phone call.

wtf?

I'm trying now get an new SimCard from my Provider.

EDIT:

The day today was terrible.

Had an conversation via sms. Could send 2 messages, the third made problems. Hanged forever at the point sending.

But it was hot today, the phone showed 43°c.

Some times even reboot didn't solved this.

Maybe an hardware fault, i hope that the new sim card can solve my problem. The card is maybe 4 or 5 years old.
[Defy Q&A, Help & Troubleshooting] maheshs:
Hi,

I faced same issue with CM10. I found a solution(Different one than you).

I changed the base band. Earlier by default it was set to Europe. I changed it to Asia(Since I live is Asia continent), now it works fine.

You can alter base band by following this.

Settings --> Advanced --> Baseband Selection.

:)
[Defy Q&A, Help & Troubleshooting] je198ß:
Is there a custom rom without this Bug?
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
You could try WIUI Stable
[Defy Q&A, Help & Troubleshooting] gahiasf:
Workarround

Same problem here. I have a Defy+ MB526 from Argentina (Personal). After install CM10 for first time I can't get network service at all.

Then Ive changed the baseband to Argentina-> Personal (it shows correctly 850/1900) but the same: no calls, no internet.

Finally, it's working after move baseband to Asia->China (850/1900/2100). I was using the phone just a few hours and works fine in 3G and 2G.
[Defy Q&A, Help & Troubleshooting] hm9:
Hi, I my name is Hugo and I have this bug too...

From CM9 and remains on CM10 quarx/eppys is the same on my mb525 red lens, with defy or defy+ roms. I get back to CM7 because I need the battery life, first on 7.0 RC1.5 and then update to 7.1 11 and still there!!!! I this bug is drive me crazy!!!

Before the cm9 I tried some nigthlys and working fine! Now is completely broken, I don't know if is some on the updates with, but still remains! the thing is I have this bug always! I flashing the original sbf does not work, wipe data on custom and original recovery neither...

I just see and I gonna try changing tu baseband but at the moment the only one with I have connection is from Colombia ( I'm in mexico)
[Defy Q&A, Help & Troubleshooting] Shiboneko:
i'm now taking an old phone and throw the defy against an wall.

yesterday i've got an message from an friend at 12.

usually i should get this message at 8.

4hours delay

and now i can't activate the wlan on the defy.

i'm try again if my new sim card arrived.
[Defy Q&A, Help & Troubleshooting] sbE:
i think we should create a baseband-country-provider-matrix. after i changed my baseband i've no connectivity issues anymore.

So let's start with O2 Germany:

Middle Europe 2.34 is working fine
[Defy Q&A, Help & Troubleshooting] je198ß:
good idea

---------- Post added at 09:48 AM ---------- Previous post was at 09:21 AM ----------

But what's the difference with regards to the 3G/UMTS-function?

I don't think that the only reason is the baseband?

Is there a log-tool that ist JB-ready?
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
The only difference I could find with WIUI is that you can set it to auto switch APNs or not, when this is switched off (i.e. no auto switching) I never experienced disconnects. This led me to the idea of deleting unused APNs, which seams to help.
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
very good idea... once we have a few more inputs I'll update the OP

I must just add that this is not the solution to all disconnection problems, but it certainly helps to get a more stable connection for some, like in your case.
[Defy Q&A, Help & Troubleshooting] sbE:
yesterday i had my first connectivity issue since days...so baseband middleeurope 2.34 is not "drop-free" anymore for me BUT significant better than default (3.4.x).
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
Bummer...
[Defy Q&A, Help & Troubleshooting] chirex:
internet connection bug

hey friends as i enable my 3g data services on my cm10 it restarts.........

what to do:confused::confused:
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
all I can suggest is that you try different basebands under advanced settings
[Defy Q&A, Help & Troubleshooting] Shiboneko:
Got an new Sim card and tried some things today.

GSM Connection is now more stable than bevore.

But have 2 drops today. don't get sms or can phone someone correctly.

3g didn't work. if i activate 3g my connection drops directly.

After some time cm10 restarts.

2g worked but i've got no connection. couldn't visit google or something.

Could some problem with the network or with wrong apn settings. i've deleted every apn and created a new one with the settings of my provider.
[Defy Q&A, Help & Troubleshooting] Dinkan:
I have been waiting for this bug to be fixed for months now and I am very close to throw my defy away and get a new phone!

But I found this thread? http://xdaforums.com/showthread.php?t=1459470

I'm not a hacker and its hard for me to udnerstand all this. But can this solve the problem?
[Defy Q&A, Help & Troubleshooting] je198ß:
I would throw my defy too. The connectivity bug is awful :(
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
I tried this already... made no difference for me.
[Defy Q&A, Help & Troubleshooting] Dinkan:
Maybe wrong thread. But is there any custom rom without this bug? I will gladely install another rom (even if I Love cm) if I can get rid of this bug.
[Defy Q&A, Help & Troubleshooting] mainTAP:
I've got the connection issues as well.

Defy+ , CM9 12-07-16

UK THREE simcard .. good HSPA coverage around

For me toggling Airplane mode / Deactivating mobile data doesn't work, need to restart .

But even after reboot .. within 2 minutes I loose connectivity again .. after several reboots it sometimes stays connected..

This is extremely annoying .. not because of loosing Internet connectivity but even phonecalls/sms :/

I've tried different basebands but nothing helped.

Sometimes it stays stable for a long time, even days or a week .. but recently I traveled a few miles away from a town I live in and since then I've got quite frequent disconnections ..

Usually when it stays connected for a couple of hours it is fine again, but it takes a while to get it back working after a restart or connectivity drop.

I really like CM9 and would like to use it but this is not a phone any more :(
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
My data dropouts appear to be a thing of the past :)

My service provider recently upgraded my network. If I go into mobile network selection I can see two Cell C options, by selecting one of them (not automatic network selection), I now don't have any more dropouts.

So now, the only network switches that are made are between 2g and 3g of the same network, no more switching between the old and the new networks... hence no more problems.

I still only have one APN, which also helps.
[Defy Q&A, Help & Troubleshooting] RedSkyRoad:
Hi,

ROM : I'm on CM10 Alpha 7 from tbalden (http://xdaforums.com/showthread.php?t=1786696)

Network : MTN

Type of service provider: Normal

Cell reception area: Good

Data type problematic: All types

Access Point Names - APN: internet

Proxy: blank

I've been having this disconnection loss when switching between 2G/3G since I got my HTC One X and running CM10. It's driving me crazy. I've only got one APN and the only way to get the new desired band to connect it to restart the phone.

Please help

Regards,

B
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
I think your problem is MTN. I've heard other users also have data problems
[Defy Q&A, Help & Troubleshooting] RedSkyRoad:
Any suggestions? What should the APN settings be?
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
The only suggestion that is concrete at the moment is to port your number to Vodacom. The only way I could get the correct APN settings for my red bull mobile phone was to go into the cell c store and copy the settings from a working handset.

I had me first data drop in a few days this morning, using auto 2g/3g and turning off auto network selection... not perfect but certainly better that 2 or 3 drops an hour.
[Defy Q&A, Help & Troubleshooting] Shiboneko:
Installed now stock rom from motorola.

Same problem as with cm10.

But with stock rom, my phone restarts completly.

Have found many Threads about this problem.

Some people undervolted the cpu to solve this problem.

I'm trying this setting now

300 - 16

600 - 32

1000 - 43

1100 - 56

My last hope.

An official statement from Motorola say that n5 sim cards cause this problem.

It's an hardware fault.

You could replace the phone, replace the main platine to solve this or contact your provider to get an n4 or n3 sim card.

http://xdaforums.com/showpost.php?p=19190970&postcount=5
[Defy Q&A, Help & Troubleshooting] Sigma47:
My drops have ceased after installing Quarx's 08/22 CM10...woo hoo!
[Defy Q&A, Help & Troubleshooting] NishantM:
For me it has got even worse. Atleast one drop every half an hour. This has forced me to revert back to CM7.2 :crying:
[Defy Q&A, Help & Troubleshooting] je198ß:
Can someone please confirm the Data Connectivty Bug. Maybe there are more technical details necessary.

http://xdaforums.com/showthread.php?t=1852995

Thanks
[Defy Q&A, Help & Troubleshooting] htcmaxx:
two or more faces?

The “connectivity bug” seems to have more than one face.

The first some of us know very well at least since CM9 (continuing in CM10):

icon grey instead on blue (in default design), no data is transferred, calls and texts (SMS) can be send and received without any restraints

switching data off and on solves the problem

The second, which I got first using Quarx 20120822 (continuing 20120825) and baseband 2.34:

spontaneously loosing signal, hence no calls, texts or data connections

have to restart phone (didn’t try switching airplane off and on)

Is there a third one?

htcmaxx

Defy+ Quarx nightly 20120825 Kernel 2.6.32.9-ge281b6e (overclocked and undervolted)
[Defy Q&A, Help & Troubleshooting] je198ß:
My connectivty bug is the first one you described.

I don't know weather Quarx and the other devs know this bug, but I would like to have a higher priority for this bug.
[Defy Q&A, Help & Troubleshooting] corrinti:
Ok, let's put in my case: data connectivity problem appears only on auto 2G/3G network in poor 3G signal area.

It appears only with my T-mobile SIM card and 2G/3G auto works without any problem when using Orange Poland SIM card in the same phone
[Defy Q&A, Help & Troubleshooting] htcmaxx:
Do you have problems with data only, or also with calls and texts (SMS)?

Is switching mobile data off and on enough to solve the problem? Do you have to toggle airplane mode? Do you have to restart the phone?

The problem does not exist using 2G only and 3G only, but with 2G/3G auto, correct? (Have you tested both “only”s?)

Is there a voltage written on your SIM cards (e. g. 1.8 or 3.3 V)?
[Defy Q&A, Help & Troubleshooting] jesleycarlot:
Problem for me

My problem is not with data, but with part phone here in Brazil using two operators in two appliances Vivo and Tim, Vivo Defy +, after I did the update on 22/08 Quarx my phone did not work anymore as telephone, the signal bar shows no signal and appears as a free service, however the data connection works normally, tried baseband switcher ja, ja did downgrade, wipe cache, Dalvik, and by the end I started to sbf rsd lite and has no way of back up and running, anyone with this problem too? or a suggestion to solve!?
[Defy Q&A, Help & Troubleshooting] erdnuesse:
maybe the third kind, or the fourth already.

Hi all,

I have and had a different kind, or maybe just found more symptoms, but that depends.

First one:

Earlier I had the dropout of the second kind, I guess, but with me, also the battery level was "frozen" at a certain level. When I rebooted, it "dropped" or better showed the -real- actual battery level. Sometimes it dropped more than 50%. I don't know about you, maybe you can try to check your battery levels before and after the reboot. Might have been of the same kind.

When they occured, I could not say when or what the cause was.

Today:

Now, my dropouts appear all of a sudden, sometimes in deep sleep, sometimes just when I turn the screen off, and 1 minute later on again, to continue browsing p.e. All I seem to having to do is re-enter my PIN and I'm all good.

Those were frequently, but not too often, so, I tried switching basebands - I already am almost always on the newest Quarx CM10 build.

This brought only little success.

Yesterday, after re-installing adfree out of my backups, I had 4-5 dropouts in about an hour.

Maybe try to uninstall it, or, check if any of your root-requiring app is going nuts. I had to remove LBE Privacy earlier, because of bootloops and removed Juice Defender just to make sure it's not causing the problem.

Maybe I'll try a sudo downgrade to track the problem further down. I am also willing to test the sim-version workaround, because it's really annoying an I don't want a new mobile, I like that one...

(I read the forums for 2 years and have made many flashes, but never found it nessecary to post that often, so first hi@all)

Specs:

MB525

German Provider: O2 Prepaid

Quarx' CM10 of 28.08.2012

Baseband today: 2.21 (I wanted to try them all, from lowest to highest, once again - it's already the third run starting)

Root apps: TB 4.x, avast (no more Juice defender, LBE green power, or adfree)

Just my 2 cents.

Best wishes,

erdnuesse
[Defy Q&A, Help & Troubleshooting] pulser_g2:
I may have stumbled upon something... Has anyone tried installing the "soft unlock" when having this issue...

I have a feeling it's helped significantly (if not fixed it)
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
Not sure what you're talking about here?
[Defy Q&A, Help & Troubleshooting] xinrag:
Hi!

Round about 4h ago I installed the latest quarx cm10 build (20120903) and had no disconnections right now. In general I got a disconnect just after locking+unlocking the phone. Maybe something has changed here? Any other experience with this new firmware?

Best regards, Stephan
[Defy Q&A, Help & Troubleshooting] pulser_g2:
There is a zip that's flashable that adds a binary, bp_ptc iirc, that patches memory on boot, to temporarily network unlock the phone.

On cm7 the issue was present, it has now been twice as long as it lasted before, and no drop outs yet...
[Defy Q&A, Help & Troubleshooting] NishantM:
Can you share the link for that ZIP so that we could try it out?
[Defy Q&A, Help & Troubleshooting] SeneKa82:
I think he is refering to this...
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
Interesting... I must say my connectivity problems are negligible after my service provider upgraded the network where I live. If someone that is still having problems can confirm that this works I'll mention it in the OP.
[Defy Q&A, Help & Troubleshooting] PPBottle:
Country: Argentina

Service provider: Personal

Device: Defy-red lens

Current ROM: PA 2.00

Type of service provider: Normal

Cell reception area: Average

Data type problematic: All types

Access Point Names - APN: URL

Proxy: Blank

Notes: I have only 1 APN configured and set, tried several broadbands with broadband switch with no avail.

Mobile data (2g/3g/HDSPA) stops working when mobile data signal is lost. Even if 3g/2g/H+ signal comes back mobile data is unusable till i do a airplane mode quick switch. This is a new issue to me, as in my last ROM, MIUI Pikachu 2.3.2, this issue happened only if i lost all kinds of signal (phone+mobile data), then i would have to do the same airplane mode trick. As I live in a place which has a fairly poor signal overall, this comes as a really annoying issue and im looking for a fix for this.
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
All I can suggest at this point is to install "Connection Checker" from the Playstore. Hopefully this bug will finally be squashed at some point
[Defy Q&A, Help & Troubleshooting] xinrag:
Hi all!

The quarx CM10 firmware 20120903 is realy great! I had no disconnect since the last ~22h. Meanwhile I used the wifi connection, the most time 3G (hsdpa...) and sometimes edge/gprs.

My provider is vodafone in germany, no specific apn config... atm baseband settings europe 2.34. But I guess it doesn't care.

Anybody else using this 20120903 and having no longer problems?

Best regards,

Stephan
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
I'm using this build too, with Connection Checker also running, just in case... Connection Checker logs shows that I've only had 1 dropout today, but this could be when the phone switches to Edge and the Edge connection is too slow.
[Defy Q&A, Help & Troubleshooting] nikhil.t:
After upgrading to the latest build 20120903 the problem still persists although its not as frequent as before!! :(:(
[Defy Q&A, Help & Troubleshooting] SeneKa82:
I tried the "soft unlock" solution by pulser_g2 and at least for me it didn't work :(
[Defy Q&A, Help & Troubleshooting] xinrag:
Hi!

...which firmware is installed...?
[Defy Q&A, Help & Troubleshooting] SeneKa82:
Quarx CM10 20120828 nightly on a MB525 green lense.

Waiting for the next nightly to test if it solves my problem like 20120903 solved for you.
[Defy Q&A, Help & Troubleshooting] xinrag:
...then give it a try with the 20120903 build! As I said: The problems went away (for me and some others). Check it out and let us know... :)
[Defy Q&A, Help & Troubleshooting] pulser_g2:
Thanks for checking.

I tested it on CM7 with a baseband I can't remember (I'd need to look it up when I get back to the phone). It had the issue on CM7 without it. I installed it, it's been fine since...

But again this patch must match the baseband. So I'll check which one it was.
[Defy Q&A, Help & Troubleshooting] nikhil.t:
I was wrong. The problem still seems to be happening! Although its not as frequent as before the phone still loses the Edge connection.
[Defy Q&A, Help & Troubleshooting] SeneKa82:
Tested 20120904 and the problem is still here... disconnections every hour :crying:

I think the first 4.1 versions made by Quarx (before usin CM code) didn't have this bug... but I can't remember.
[Defy Q&A, Help & Troubleshooting] je198ß:
Now Catlog is running with JB. We should try to reproduce the bug and collect some log entries for the devs.

If you want to use Catlog then you have to go to settings/log Buffers and activate "RADIO".
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
I don't think so... this bug has been plaguing me since the very first CM9 build
[Defy Q&A, Help & Troubleshooting] xinrag:
Hi!

Very bad news!

20120903 worked for me like a charm.

With the new one from yesterday (20120904) my 3G is broken again :(

[Edit: It is not that broken as before 20120903 for me. Enabling/disabling wifi or locking/unlocking the phone didn't destroy my connection atm. Some hours ago it failed. Does anybody know the right repo/part in quarx github to look for the corresponding changes? https://github.com/Quarx2k and then...? ]

One funny thing for me is this information: Like some other people my IMEI number was unknown/unset in the - for me - working 20120903. I don't mean we will need a unkown IMEI.. :)

I hope quarx could look at the changes he made. The diff between 20120828, 2012093 and 20120904 could be interesting I guess.

Best regards, Stephan
[Defy Q&A, Help & Troubleshooting] je198ß:
,

Please use Catlog to collect some details (you have to enable RADIO in Catlog)
[Defy Q&A, Help & Troubleshooting] SeneKa82:
There is my logcat... look at line 25 and 26:

09-05 11:30:34.850 D/RILJ ( 2890): [4522]< REQUEST_GET_NEIGHBORING_CELL_IDS [4@12] [0@7] [16b@11] [16e@8]

09-05 11:32:07.631 W/ThrottleService( 2523): unable to find stats for iface rmnet0

There is a network problem when changing from one to another cell tower. In my case, this happens every 60 minutes (more or less).
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
This confirms my findings...
[Defy Q&A, Help & Troubleshooting] SeneKa82:
Look at this, it's very interesting, says that this error is caused because using a 2.6 kernel instead a 3.0.

2.6 kernel needs a module that can be backported (there exists a git repository with the backport).

I don't know if this is correct or not, it's just some googling... :confused:
[Defy Q&A, Help & Troubleshooting] ktmbikerman:
Looks interesting... Maybe maniac103 can take a look at this?

Edit: Just received this feedback from maniac103: "Epsylon3 backported that module some months ago. Also, if our problem were that module, it wouldn't happen on CM7"
[Defy Q&A, Help & Troubleshooting] nikhil.t:
The app "connection checker" seems to be the best option for now....:) nothing else seems to work...