Optimus dropping calls in 2G mode - Optimus One, P500, V General

Hi Guys,
My optimus calling service is not reliable at all in 2G mode. Is it just mine or there is really a problem with 2G networks. When I switch to 3G everything seems to be ok. Sometimes it drops the connection during the calls. Sometimes I can hear the other side but they can't hear me.
Overall it is a very good phone apart from calls dropping.

No issue
Been using it for a week now. Have flagged the 2G explicitly to conserve battery. Not had any case of call drops or one way traffic.
Cheers,
Vikram.

I use only 2G and I speak a lot. No problem at all.

Thanks guys, so I assume that next step should be to leave it for repair. I'm afraid that they will return it without any changes as this behaviour is not so regular.

Also my phone sometimes drops calls. I've resolved the issue replacing SD card, from Sandisk 16gb class 2 to Transcend 8gb class 4. Now works well, hope the firmware update resolve the SD compatibility problems

Is it really possible the only reason to be in the SD card? There is no much sense on this but who knows?!

I think it's not a sd-card problem, because i have the same problem here in Hamburg/Germany and for me it's the provider 'O2'. Same thing before with my Samsung Spica and my girlfriend ('O2' too) has a X10 mini, same calldrops...
Maybe you can try the simcard with another mobilephone!?
Greetings

Yes I can confirm the drop calls with o2 germany. I was two weeks ago in Köln and had the same problem but to be honest I had similar problem with e-plus.

matematic said:
Hi Guys,
My optimus calling service is not reliable at all in 2G mode. Is it just mine or there is really a problem with 2G networks. When I switch to 3G everything seems to be ok. Sometimes it drops the connection during the calls. Sometimes I can hear the other side but they can't hear me.
Overall it is a very good phone apart from calls dropping.
Click to expand...
Click to collapse
I use 2G mode to save battery life. I've not had any problem so far.

I have the same problem too. I will try to figurate if excists in 3g mode

Maybe your network has issues , or your signal is quite weak . I have full signal in 2g at all times

The problem could be strictly with the network reception in your area where 2g is very limited. With repairs they may be unable to detect anything wrong with the phone itself. See if you can find someone else on the same network, preferably different phone, and checking their status on 2g.

unfortunately my home has excellent reception, i have a second old device(nokia 6310i) and it works perfect with it

I have this problem too + missed calls.Keep reading but no solution so far.Flashed to prime v2 and nothing.I don't think the problem is in the network because i try with two different sims and problem exist but will buy another sim and see.

Same problem here. Also the voice quality is really horrible and sounds like it's coming through a pipe LOL.. Is this normal or?

FnH84 this is not normal.I thing that is software problem(other brands has the same problem).Maybe any process or application i don't know but this phone is useless as a phone.Everiting else works great but ............I will keep trying other rom-s other sims and keep reading for solution.

Ok, i found a convient solution for me. downloaded ,status bar 2g 3g, from market. i have always data off unless i need it(in 3g mode always). this program show in status bar if your network is 3g or 2g without having data on all the time cause consumes much battery. give it a try

Ok i install the program but it always shows 2g even my data is off.Is that normal.What the program show in your statusbar.

did you uncheck the 2g mode from the settings?

Related

Can someone help me with O2UK 3G

I have had my phone for over a year now but 3G coverage is so bad , most of the time im on 2g (o2-uk) very rarely does it say 3g o2-uk. it takes ages to get a page due to the fact i keep getting page not found errors.
i rang o2 today and was told to hard reset phone , to update latests updates (both which have been done) and no difference.
i have a 3g sim.
it appears that when it switches to 3g it gets no signal altho i may be wrong
could anyone suggest any tips / tricks to make 3g mode work
Ok I had a similar issue with my O2 reception and the only way I found that helped was to disable HSDPA/HSUPA, I now mainly have a good 3G signal.
AndyFZ1S said:
Ok I had a similar issue with my O2 reception and the only way I found that helped was to disable HSDPA/HSUPA, I now mainly have a good 3G signal.
Click to expand...
Click to collapse
how do i do this?
Double posted sorry - please delete (i couldn't find a delete option)
Go to settings Connections Advanced Network and Disable HSDPA/HSUPA.

3G connection getting blocked frequently

Greetings
I have bought a sim free galaxy s2 5 days back . I am in japan.
From day one I have been facing strange problem. If my 3g disconnects for some
Reason such as going into elevator or traveling in underground,
It doesn't come back. I have to reset my use data package network settings or
Turn on the flight mode and turn it of f again to get connection back.
My apn settings are as per my carrier has suggested.
Because of this issue the phone become almost useless while traveling
Or while going up and down in my office building.
I haven't rooted it yet. Is this firmware problem or hardware.
Please help
samsungnikiru said:
Greetings
I have bought a sim free galaxy s2 5 days back . I am in japan.
From day one I have been facing strange problem. If my 3g disconnects for some
Reason such as going into elevator or traveling in underground,
It doesn't come back. I have to reset my use data package network settings or
Turn on the flight mode and turn it of f again to get connection back.
My apn settings are as per my carrier has suggested.
Because of this issue the phone become almost useless while traveling
Or while going up and down in my office building.
I haven't rooted it yet. Is this firmware problem or hardware.
Please help
Click to expand...
Click to collapse
Some people including myself are having connection issues when gsm/wcdma auto mode is selected...phone is stable when gsm only is selected..after comparing with 2 other phones,i can confirm this behaviour dosent happen on their phone..and i have to sadly say something is wrong with my phone..why dont you do a little experiment..try selecting gsm only mode and see if your connection is stable..maybe you are having a defective phone like some of us here...untill today i cant figure out if its a hardware fault or some weird software glitch.
Sent from my GT-I9100 using Tapatalk
In japan currently wcdma is used. After disconnecting
I can only see upward arrow all the time until I reset data network.
This is bugging me big time now
samsungnikiru said:
In japan currently wcdma is used. After disconnecting
I can only see upward arrow all the time until I reset data network.
This is bugging me big time now
Click to expand...
Click to collapse
Many people including me are having this exact same problem. I am suspecting the modem software, and hoping it will be fixed soon. But please note I also held hope for almost a year that GPS glitches in the first galaxy were fixable with software, and now we all now it wasn't.
I'm having the EXACT same problem! Out of nowhere my 3G connection is 'lost?' and I only see an upward green arrow.. i have to reboot to get this right.. but after a short while.. same problem again!
I live in The Netherlands... I wonder what the problem could be, but even better! THE SOLUTION!!
Resolved!!!!!!!!
@mmichaell I got a great news for you. I could resolve this buggy thing.
Just dial *#*#9900#*#* this will open a pop-up
from which select Disable fast dormancy....and bangggggg the issue is gone..
let me know if you get it right
nope it doesnt work for me. ive also tried *#301279# trick but still problem is there!! wat should i do? return it? its only 1 month old, same connection works flawless on my nokia n8.

[Q] Network registration issue?

Hi All,
I am having a strange problem with my S2 since last few months. I am from Mumbai, India and using Airtel network. There is a spot in my apartment which has very poor network reception of Airtel and I face issues whenever my cell is in that spot for a while. It happens that whenever I take my cell in that area, it starts losing signal bars till no bars are highlighted on the status bar at the top. It keeps showing zero bars but does not show "no signal" icon. Then, after keeping my cell in that spot for a while when I bring it in a better connectivity spot, signal bars start increasing and it appears that my cell has better reception again. However, if anyone tries to call me or I try to call anyone, they get "Out of coverage area" message or I get "Network registration failed" message respectively. I am having this problem since the day I started using Airtel and have tried a lot of remedies but only thing that works is rebooting my cell. I have tried using OpenSignal app to reset my connection whenever my cell comes back from the spot but even that fails to revive it and ultimately I have to reboot.
Has anyone faced such an issue and any ideas about a fix? Does it look like an issue with my cell or could it be an issue with my network provider? I would prefer not to root my S2 since I have 3 years warranty on it but if you think that it's the only way out of this, please let me know your opinion.
Thanks.
Sounds like a carrier issue to me. You pretty much said exactly that yourself when you said 'There is a spot in my apartment which has very poor network reception of Airtel and I face issues whenever my cell is in that spot for a while'.
That's normal in many buildings. Particularly if the network coverage in your area is borderline or poor. I have a similar issue in my house, in a few rooms I get no bars & sometimes coverage drops out completely, whereas in my loungeroom/dining/kitchen at the back of the house I get good coverage (for me, anyways).
You could try different modems, which might improve things. You don't have to be rooted to flash these, you can flash them using Odin. Tho it is easier to flash them with CWM if you're rooted.
I use to had the same issue with my 3 carrier at my desk in the office, and still on 2g services. I but since last month they already improved to hsdpa network added more bts and now my blank spot became H.
Yes you may try to change other service providers
Sent from my GT-I9100 using xda premium
Thanks for your suggestions guys. Yes, it might be only related to the carrier. But, I think that if signal goes down to zero and then when my cell is back in better coverage zone, shouldn't the modem take care of network registration by itself? My problem is that it doesn't. I have to reboot my cell every time after I come to know that my cell is showing signal bars but is not actually registered on the network. If I reboot my cell, everything becomes normal and so if it was just an issue with the carrier, shouldn't it continue like that even after reboot? If I think about it logically, I think following should help me out:
1. Try out a different cell for a few days and see if I face this issue or not.
2. If answer to 1 is no, then try out different modems on my S2 and see if that helps.
Actually, I just wanted to check if anyone else has faced this issue and figured out that something is not right with S2 drivers or something? That would help me with quick resolution of my problem.
Sent from my GT-I9100 using XDA
Yep, your logic is sound ;-)
One thing tho. With regard to trying your sim out in another phone, you have to keep in mind the radio hardware is obviously different in different phones. And what that means is (and this is something I've observed on XDA), chances are you'll find the sim works perfectly in the other phone & you have no issues at all. This might be due to the actual equipment your carrier is using in the cell tower(s) you're close to, also the frequencies that gear is using might also be playing a part in your problems.
So definitely try it out in another phone & see what happens, but you could do worse than try out a bunch of modems in the S2 & see if that improves things.
crypticlight said:
1. Try out a different cell for a few days and see if I face this issue or not.
2. If answer to 1 is no, then try out different modems on my S2 and see if that helps.
Actually, I just wanted to check if anyone else has faced this issue and figured out that something is not right with S2 drivers or something? That would help me with quick resolution of my problem.
Sent from my GT-I9100 using XDA
Click to expand...
Click to collapse
Those are carrier issues, and maybe even the material of the constructions, in my house there are rooms where there's almost no signal at all, and in the living room it's ok, you should try to see in which tower you are connected maybe thats the problem
I have also had these problems on various networks here in Australia. If you don't need the data network, you could try using 2G only option. But that's not really a fix, is it? I suggest you try a pre-paid SIM from another network provider, to test them out first, before re-contracting.
Good luck. :fingers-crossed:
MistahBungle said:
One thing tho. With regard to trying your sim out in another phone, you have to keep in mind the radio hardware is obviously different in different phones. And what that means is (and this is something I've observed on XDA), chances are you'll find the sim works perfectly in the other phone & you have no issues at all. This might be due to the actual equipment your carrier is using in the cell tower(s) you're close to, also the frequencies that gear is using might also be playing a part in your problems.
Click to expand...
Click to collapse
Yes, I was also thinking about it. It could be the combo of cell tower and S2 that are not liking each other that well.. And, if that's the case, I really hope that the issue can be resolved by switching modem drivers. I will have to do some what-ifings to nail this down now.
I like the other suggestion by HotrodHarry on trying out 2G only option - not the best way out but will help me in zeroing down on the cause.

[Q] Data connectivity issue when moving 2G to 3G

Hi all,
I'm having a data connectivity issue on my phone when moving from 2G to 3G. If I'm connected to 2G, then move into an area of 3G coverage the phone will successfully migrate to the 3G network, however the data connection will often not start up for between 30 minutes and severanl hours. Flipping airplane mode will *sometimes* fix it, but more frequently, even rebooting the phone won't work. However, if I lock the phone to 3G from the settings, I do not encounter this issue at all. It only happens on my home provider (Jersey Telecom - they're small). In the UK, on Three, it didn't happen.
So, given that the problem can persist over reboots, and doesn't happen in the UK, it makes me think it's more likely a network issue, so I called them up. The network engineer managed to reproduce the issue on his colleagues Samsung Galaxy Note, but they are adamant that it's a phone issue and not a network issue, and is a matter of Samsung not sticking to the specs. The phone isn't currently rooted, but I can root it if it will help me debug the problem. From the sounds of it, it may be problem consistent to all Samsung radio phones on our network.. and I really don't want to switch to another phone.
They say that from their logs, the phone is not always trying to create (or presumably, migrate?) a PDP when moving to a 3G network. It's hard to say whether it's a problem with the phone or their logs.. has anyone else experienced a similar issue? Does anyone know how to access logs about the phone trying to create a PDP etc. so that I have something to compare with theirs?
Thanks
check out the modems thread and try a better modem
Sent from my checkrom jellybean powered sgs 3

[Q]my carrier's 3G signal is blocking my GPS

HI.
something very strange have been happening with my phone and my carrier's signal.
I have a GSM galaxy nexus running CM 11
for some reason, I can't have both a 3G data connection and my gps work at the same time.
I've tried lots of other combinations, (wifi on, wifi off, data on, data off, 2g only, airplane mode) and with all of them my GPS works perfectly.
the second I allow my phone to use the 3G connection, the GPS dies stops working completely until I reboot.
I've tried probably 6 different roms so far, including going back to stock and trying all the stock images google released for my phone.
then I decided to try another sim from another carrier, and guess what? GPS works perfectly, whether is 2G or 3G. so I'm thinking, is my carrier's 3G signal somehow messing with my phone's GPS?
I can't really find anything about this two things conflicting with each other. hope someone here knows a little more about it, or maybe give me a little hint as to what else could I try next?
thanks!
after trying pretty much everything, I bought a new sim card from my carrier and guess what? problem solved.. or so it seemed.
my GPS worked perfectly for about 2 days. then the exact same thing again. 3G enabled? no GPS.
I hope someone reads this and could help. I have no idea what to do anymore.

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