Database Users

Possible fix for data stalling issues some of us are having.

Right, a little back story.
I brought my SGS2 at the start of May in the UK on O2 so I have an early model which came with the firmware before KE1. I rooted in the first week and was flashing Villainrom 1.0 before too long with no data problems.
I think it was around KE2 with Lite'ning rom that I first saw my phone constantly switching between H & 3G and stalling when receiving or sending data. This behaviour has continued through all the firmwares I've tried with many different modems. I moved onto to Cognition when it was v1.01 and have been using it all the way unto 1.2 with the KG3 modem. Again still with data connecting problems.
Things I have tried -
Turning off fast dormacy
Editing the build.prop http://forum.xda-developers.com/showthread.php?t=1097612&highlight=build.prop pages 1-5
Switching off HSDPA/HSUPA via the *#301279# command
Disabling juice defender
Switching to WCDMA only
Changing modems
Full hard reset and reflasing of roms
Even with the above on multiple roms and rom versions my data connection was unreliable at best and killing spree warranting at its worst.
Possible fix-
What i found lurking on XDA on a slow day at work was the command below
*#2263#
This allows you to select which bands your phone uses. I selected option 2 then tested the 4 available bands. They all resulted in a complete loss of reception except WCDMA 2100. this is probably network specific you'll need to try it yourselves.
The results and current settings
Now when I try to use my data connection the phone no longer switches between H & 3G. It will start on 3G then find H and stay there, I see a slight delay if its been in deep sleep or JD has cut the connect but this is normal for the phone to start on 3G to save power.
Fast dormacy - off
build.prop -stock/unedited (I found this worked for me for a while but since 2.3.4 it didnt seem to help)
HSDPA/HSUPA via the *#301279# command - both on
Juice defender - on
WCDMA only selected as when picking a band it doesn't seem to like having a GSM band selected as well (happy to be corrected on that)
Modem KG3 -
Rom cog 1.2 - I'm patiently waiting 1.4 based on KG6 to test my findings.
Conclusion-
Okay it could be that selecting a band does F'all and that I'm seeing better results for a completely different reason. I'm not a developer so my fixing skills amount to playing with stuff I don't fully understand and seeing how more or less broke I've made it.
After thought -
Ive seen on the sensation forum they have discussed the wrong IMEI code being the cause of poor data speeds so I may look into that next.
Please share your experiences and anything else you've tried.

Ive seen on the sensation forum they have discussed the wrong IMEI code being the cause of poor data speeds so I may look into that next.
That should be no connection as IMEI belongs to phone and handshakes with network first .
KG6 modem some report as better .
jje

I will have to give this a try and see how it works, thanks for the share.

I am in the same boat, it is VERY frustrating to say the least. A typical scenario for me is: reading a web page on my S2 for a good few minutes (3g has gone to sleep mode by the time I have finished reading), I click on a link, 3g flashes, H comes up and flashes once.....wait.....wait.......wait......10 seconds later it decides to initiate a connection and take me where I want to go! It does the same thing with the XDA app. I have been onto O2 about this a couple of weeks ago, all they did was give me the settings over the phone (which were the exact same ones I already had) and they also sent me a replacement sim card, suffice to say, there is no change. Now I am convinced its a network problem of some sort, I have a three sim card which I have been trying out and the above problems do not exist anymore when using three, I click a link after 3g has gone to sleep and it goes from 3g to H and initialises the data transfer in one smooth motion. It looks like I'll be getting my PAC code and moving to Three!

would be interested to hear if switching to the 2100 band helps at all seeing as your on O2 as well

Mine is O2 via Giffgaff and no problems at all .
Tested KG6 modem Wi|Fi only and it is a stronger signal .
jje

Yeah, forgot to mention that, I have just enabled it. I can't test at the moment though coz there is no 3G coverage where I am. The only problem with enabling it is you will not be able to connect to GPRS or Edge if you need to. But it is worth testing regardless.

Just been out and about and tried that setting, didn't make much difference unfortunately

Maybe it was a combination of tweaks on my end. What rom & modem are you using?

bentez2003 said:
Maybe it was a combination of tweaks on my end. What rom & modem are you using?
Click to expand...
Click to collapse
Villain 2.3 with KG3 modem. The problem has been the same whatever ROM I have used, I even flashed back to O2 stock a couple of weeks ago to see if it was a ROM problem, but that was the same. I can't remember what it was like when I first got the handset though, mine was the first batch as well.

JJEgan said:
Mine is O2 via Giffgaff and no problems at all .
Tested KG6 modem Wi|Fi only and it is a stronger signal .
jje
Click to expand...
Click to collapse
The wife is on Giffgaff so I think I'll give that sim a try before I get my PAC off O2.

bentez2003 said:
Right, a little back story.
What i found lurking on XDA on a slow day at work was the command below
*#2263#
This allows you to select which bands your phone uses. I selected option 2 then tested the 4 available bands. They all resulted in a complete loss of reception except WCDMA 2100. this is probably network specific you'll need to try it yourselves.
.
Click to expand...
Click to collapse
hi
i am just testing now this fix. i have an o2 phone and i did the same changes you did, disable fast dormancy, changed build.prop settings, will let you know after going a few times underground ;-)
gabrio

confirm, this is working, even when i go underground or when the signal goes away, it gets back to H/H+ and works, gabrio

Give it a little while, I think you'll be back saying it didn't work
Personally, I went ahead with my threat and moved over to 3uk, never looked back since with this problem, been perfect!

I've tried it all. Disabled fast dormancy, hspa, toyed with band selection, edited build.prop (btw, don't bother with it, the network settings you find on the web to type in don't work on the s2) you name it - but it would still cut out. Luckily, my phone is unlocked so I switched my provider and now it works like a charm with all the bells and whistles enabled. I can ride the tram all across warsaw and maybe have a handful of 2-3 second hiccups when I'm listening to online radio. Curiously enough, on my previous provider I've noted that there are some areas (like a busy mall - Arkadia) where it would not stall as well as a few other places, and most other areas that were notorious with data hanging. I'm convinced now that it is an issue on the telco side (*cough*Orange*cough*), and too bad because I was on a prepaid plan with them that for roughly $30 I had 7GB of transfer. I guess they figured they can promise the world on their trash network, because nobody would actually use it up. YMMV.

Had this issue with a UK GS2 purchased from Negri using it on AT&T.
Since upgrading to the latest UK firmware with 2.3.4 I have not had the issue going on about 2 weeks now!
Man was that issue annoying. Had to restart the phone sometimes to get data back.
Joe

Ok I did that too though how abt lag? Phone lags a bit opening large sms conversations and browsing home screens.. But peace. Yours too?
Gabrio
Sent from my GT-I9100 using XDA App

[Solved] Data Reception with WinMo but not Android

Hey mates,
at the moment i'm in a corner of New Zealand ( :laugh: ) where i thought that there would be no data reception. I can make only phone calls. But Data is working i know that cause i used it on other places like Auckland. The interesting thing is following:
After some time (tyween ROM) my HD2 started making random restarts, so i decided to reflash my HD2 from the beginning. So if flashed back to the original Stock ROM to make a clean flash for the tytung ROM afterwards. Suddeny i had good 3g Data reception. Then i flashed the tytung ROM and again i had no data reception
So it seems there must be something with Anroid ?!
Any ideas or solutions? Anybody recognised the same

check teh apns, , i always have non working data when i install any android rom, , it seems teh defaults mess with each other. I have to delete all but two (one data one mms) and tweak the mms one to get full data/mms functionality. Ive never yet had an android rom that works out of the box for mms, and most dont work for data either (though some do, , but data only, they NEVER work for mms)

Just checked the APN settings, deleted them and configured them new as shown here under the point internet. But also before i deleted them they were correct.
It is still not working. It would also amaze me if this would help.
Cause as i said before. For example in Auckland or other cities i had no problem.
Also no in Germany. Now i am in a rural area. Never had any problems like this before.
Maybe i should try another Radio Rom??!

mokkami said:
Maybe i should try another Radio Rom??!
Click to expand...
Click to collapse
unlikely to help.
i came across this
The 2 Degrees network is new to New Zealand. To get national coverage, 2 Degrees have a roaming coverage with Vodafone, which means you use the 2 Degrees mobile towers in the main cities, and then your USB modem (or 2 Degrees phone) roams to Vodafone and uses the Vodafone network if there are no 2 Degrees towers in your area.
Click to expand...
Click to collapse
mokkami said:
For example in Auckland or other cities i had no problem.
Also no in Germany. Now i am in a rural area. Never had any problems like this before.
Click to expand...
Click to collapse
turn roaming on.

D'oh! :fingers-crossed:
You are so wonderful, thank you very much :good:

mokkami said:
D'oh! :fingers-crossed:
You are so wonderful, thank you very much :good:
Click to expand...
Click to collapse
dont tell me! tell my (future) wife!

samsamuel said:
dont tell me! tell my (future) wife!
Click to expand...
Click to collapse
You want it by mail?
Or is this Thread enough :laugh:

huh, she'd think it was a setup anyway.

samsamuel said:
huh, she'd think it was a setup anyway.
Click to expand...
Click to collapse
If it is really this hopeless then buy her an HD2 :laugh:

[Q] i9505 stuck out of service

Hi,
I have a weird problem with my S4.
At work I have some areas with really bad coverage so sometimes the phone can stay for a few minutes (or even say 1h) out of service.
This is all normal. The coverage sucks, the building is weird, not problem here.
The problem is that when I go outside where the signal is normally full it does not register back to the network.
Even more it does not even go to "emergency only mode". On a few occasions I arrived back home (10Km + drive) until I realized people can't call me because the phone is out of service.
What is even weirder is the fact that on some occasions, even though the (no service) (/) sign is displayed mobile data works just fine.
My previous iPhone did something similar too - it took a while for it to recover signal after exiting the coverage black spots but never more than maximum 5 minutes.
To me it looks like a radio modem issue and maybe this is aggravated by the fact that my carrier uses the same 2100MHz frequency for both Data and Voice.
I would like to know if any of you have experience anything like this or if there is some app available that can monitor what's happening.

what network and firmware you on and wich s4 variant:thumbup:
Sent from my GT-I9505 using xda premium

I9505XXUBMEA I9505OXXBMF1
It's Europe standard i9505.
Network is Digi.Mobil Romania - but I doubt it's relevant since it can't get even emergency only (other networks).

so... any idea?

Android needs to work on it's notification. No Service and the reception bars only gauge voice coverage. You can test this out by using Service Mode to do a PS Only (data) attach instead of the standard PS + CS (voice) attach. It'll say no service, but data will be fine.
Emergency only, is when there is coverage from other operators but not yours. No service, means your way off the grid.
I've noticed the issue you describe and it's only on some firmwares. Try a newer one and see if you still have the same issue. But you might notice a drop in your battery life because your phone will be scanning all the time. If you're happy with no coverage at work, best to just turn it off and then turn it on when your outside.
Best option is to tell your operator about the lack of coverage. There's someone in charge of stats who get's beaten every time you drop a call. You'll get extra attention if you've got other businesses around you, so let them know that too.

Thanks for the reply.
I am already on the latest firmware and I noticed the same behavior on the firmware before this one.
Unfortunately I can't try out other modem versions (from other FW packages) as that would void my warranty.

avoid said:
Thanks for the reply.
I am already on the latest firmware and I noticed the same behavior on the firmware before this one.
Unfortunately I can't try out other modem versions (from other FW packages) as that would void my warranty.
Click to expand...
Click to collapse
but...what about reboot phone? i know isnt funny but until u find a problem u can just reboot ur phone while u are going out from ur office...or just try to enable and disable airplane mode

Of course reboot works but I am looking for a solution, not a partial workaround.
The most annoying problem is that if I forget to reboot it when I leave work it will not recover network connectivity even if I am in areas with very good coverage, areas where you would expect your phone to work.
It looks like when it decides to give up it does not try again. It is very weird that it also drops the signal from other networks (the "emergency only") even if it's well in their coverage areas. I guess I will have to switch phones... Even if this issue was present for the iPhone too it never took more than a few minutes for it to recover on its own. And I'm not an apple fan

Just to do some brain ecercise...do u keep in power save when u are out of signal ? Its possible that disable check after few tries
Sent from my GT-I9505 using xda app-developers app

It's not in power save. I only use that function in case of battery emergency.

Same problem here
Hello, I have the EXACT same problem here. I am in Argentina.
Now, I've been in the USA for a few weeks, visiting, and while my phone was roaming, I didn't have a single problem with my phone.
Since I came back, 3 days ago, I haven't had any problems in Argentina, either.
Is it possible that something got activated when the phone was registered to another company? (it was AT&T i believe)
If that's the case... maybe you can try putting a sim card of another company and see if you still have the problem?
Please let me know if you still have the same problem or if you got it solved. I would love to know something more scientific about all this.
I don't know if this is relevant, but my compass is off by about 30 degrees. Maybe my phone is defective?
THANKS FOR ALL YOUR HELP YOU CAN GIVE ME WITH THIS
---------------------
avoid said:
Hi,
I have a weird problem with my S4.
At work I have some areas with really bad coverage so sometimes the phone can stay for a few minutes (or even say 1h) out of service.
This is all normal. The coverage sucks, the building is weird, not problem here.
The problem is that when I go outside where the signal is normally full it does not register back to the network.
Even more it does not even go to "emergency only mode". On a few occasions I arrived back home (10Km + drive) until I realized people can't call me because the phone is out of service.
What is even weirder is the fact that on some occasions, even though the (no service) (/) sign is displayed mobile data works just fine.
My previous iPhone did something similar too - it took a while for it to recover signal after exiting the coverage black spots but never more than maximum 5 minutes.
To me it looks like a radio modem issue and maybe this is aggravated by the fact that my carrier uses the same 2100MHz frequency for both Data and Voice.
I would like to know if any of you have experience anything like this or if there is some app available that can monitor what's happening.
Click to expand...
Click to collapse

Hi I have similar issue,
My phone says its out of service or no signal or no network also I checked my sim card in other phone in the same place and it is fine. The i9505 model in ireland meteor provider was running ok until deicided to give a try to another network operator, when I changed the sim card it didnt only catch up the signal from new network provider but also it refuses to catch the old network provider. Funny thing is that I am receiving 3G but no signal bars and no service sign is beeing displayed. I am running latest official BTU (UK) firmware, the phone was never rooted, altough I had to remove the simlock and instal unbranded firmware. The phone worked fine with the newest updates for a month and now I am facing this trouble.
No factory resets nor installing same radio (couple of times) have helped. Also I used odin to instal same firmware (as it has locked bootloader) so I cannot revert back to other stock firmwares, but still no joy.
hope that someone faced the same problems and describe how to solve this issue. thanks

Terrible data reception.

I used to use a Galaxy S3 and at home I always got a data signal showing H+
I recently switched to a Note 3 and now at home my data signal never goes above E and it stupidly slow.
Voice signal strength on the other hand is always full.
Is anyone else experiencing a low data signal like this?

Tried a different SIMcard? These problems usually result from an old SIM in a new phone. Those two don't mix very well.

ShadowLea said:
Tried a different SIMcard? These problems usually result from an old SIM in a new phone. Those two don't mix very well.
Click to expand...
Click to collapse
I don't have another sim to try, and everyone i know is on a different supplier so using one of theirs would be pointless, and my supplier charges for a sim change so really a no go unless i know for a fact that's the problem.

Really? Even with problems? Oh, right, HI is KPN... Of course they do.
Different providers shouldn't be an issue, there's no SIMlock in the EU. (thank you Kroes.). Any provider from the EU should work without issue. If one of theirs works, it's not the phone.
Alternatively, you could go to a shop and use one of their test SIMs.
Also, does the connection go above EDGE when you're somewhere else? Or does it stay slow everywhere?

Yea I also noticed this on my device.
Im on stock deodexed rom ( NC2 by @_alexndr ) and my reception also is worse than on my previous S3.
Im constantly playing with the idea to flash another KitKat modem.
Tbh I tried once via odin but after restart nothing has changed in my about phone while odin said success?!
sent from SM-N9005

Sheeezy said:
Yea I also noticed this on my device.
Im on stock deodexed rom ( NC2 by @_alexndr ) and my reception also is worse than on my previous S3.
Im constantly playing with the idea to flash another KitKat modem.
Tbh I tried once via odin but after restart nothing has changed in my about phone while odin said success?!
sent from SM-N9005
Click to expand...
Click to collapse
I tried a different stock rom and it made no difference at all.
I also remembered that my netbook has it's own sim card on a different provider so I put that in and got the exact same result so it's definitely the phone and not the network

I did this to my note 3. Dial *#2263# then select lte/wcdma only. Then menu > end.

loupams said:
I did this to my note 3. Dial *#2263# then select lte/wcdma only. Then menu > end.
Click to expand...
Click to collapse
that code does not work for me

@Larkspeed
maybe I should mention that I use the Spigen Neo Hybrid case on my Note 3 whereas the S3 was "naked".
This could make a difference but apart from that I dont get why the reception is so bad in comparisson to my S3.

Redmi 2 2014819 QCN file?

Hi all, I had lost my IMEI information and I managed to fix this using the QCN file for the 2014811 variant but this QCN has no support for Brazilian LTE bands cos my variant is 2014819 so all I get now is H+ internet. Does anyone here have the original qcn file for the brazilian variant so I can re-edit with my IMEI and get 4G back? Thanks in advance.

Are you having signal drops after flash the QCN? I'm having since then, don't know if is hardware or not. I don't want to send to assistance and my warranty is almost over.

Yes
LuizHPiccinini said:
Are you having signal drops after flash the QCN? I'm having since then, don't know if is hardware or not. I don't want to send to assistance and my warranty is almost over.
Click to expand...
Click to collapse
Yes, on TIM the signal dropped but because at home 4G signal is stronger than 3G where I live but on Oi, 3G signal is real strong. I want 4G back and I can't seem to find the original QCN for the Brazilian variant.

msgladia said:
Yes, on TIM the signal dropped but because at home 4G signal is stronger than 3G where I live but on Oi, 3G signal is real strong. I want 4G back and I can't seem to find the original QCN for the Brazilian variant.
Click to expand...
Click to collapse
Where I live there's only 3G so I don't know about 4G.
What I mean with signal drop is not the strenght and yes the signal itself. Sometimes I have no signal with the message "no sim card detected" than I've to turn on/off airplane mode some times to come back.

I don't have that issue
LuizHPiccinini said:
Where I live there's only 3G so I don't know about 4G.
What I mean with signal drop is not the strenght and yes the signal itself. Sometimes I have no signal with the message "no sim card detected" than I've to turn on/off airplane mode some times to come back.
Click to expand...
Click to collapse
Oh no I don't get that, my sim card is always detected after I flashed the cqn but since this one is for Indian variants, I get no 4G, and my problem now is finding the cqn for the 2014819 variant, I have no friends with this cell phone so it gets difficult. You should reflash that if you say it used to work better before.

msgladia said:
Oh no I don't get that, my sim card is always detected after I flashed the cqn but since this one is for Indian variants, I get no 4G, and my problem now is finding the cqn for the 2014819 variant, I have no friends with this cell phone so it gets difficult. You should reflash that if you say it used to work better before.
Click to expand...
Click to collapse
I tried flash the fastboot rom but not works, don't know if it is a hardware problem or what, but before I trade the ROM it didn't occur.

Fastboot doesn't always fix that
LuizHPiccinini said:
I tried flash the fastboot rom but not works, don't know if it is a hardware problem or what, but before I trade the ROM it didn't occur.
Click to expand...
Click to collapse
Well I've tried fastboot flashing and still I'm here with that issue without a fix, so it doesn't always override some settings. Try the IMEI fix stuff on the Miui forum.

msgladia said:
Well I've tried fastboot flashing and still I'm here with that issue without a fix, so it doesn't always override some settings. Try the IMEI fix stuff on the Miui forum.
Click to expand...
Click to collapse
It was the first thing I tried because that time I didn't know about flashing the modem.

Another network?
LuizHPiccinini said:
It was the first thing I tried because that time I didn't know about flashing the modem.
Click to expand...
Click to collapse
Have you tried sim cards of other carriers? Do they work or still the same? You should send in to assistance before your warranty runs out. Mine has expired, that's why I don't send mine in.

msgladia said:
Have you tried sim cards of other carriers? Do they work or still the same? You should send in to assistance before your warranty runs out. Mine has expired, that's why I don't send mine in.
Click to expand...
Click to collapse
No but mine in other phones is normal. I need but I don't want to stay without the phone kkkkkkkkkkkkkkkkk

It's quick
LuizHPiccinini said:
No but mine in other phones is normal. I need but I don't want to stay without the phone kkkkkkkkkkkkkkkkk
Click to expand...
Click to collapse
I was told they fix this in a week, they'll probably send you a brand new phone. It's worth waiting for a week and get it fixed than never get it fixed.

msgladia said:
I was told they fix this in a week, they'll probably send you a brand new phone. It's worth waiting for a week and get it fixed than never get it fixed.
Click to expand...
Click to collapse
Guess I'll sendo so.