3G connection getting blocked frequently - Galaxy S II Q&A, Help & Troubleshooting

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.

Related

3 UK Network data hanging - UPDATE THREE ACCEPT ISSUE

This thread is about the famous 'data hanging' problem experience on SGS2's and how to address it on the Three Network in the UK. (Where the green arrow gets stuck on uploading with no download).
The problem from what I understand is that the handset constantly changes between GPRS, 3G, H and H+ to save power. Fast Dormancy is a setting the SGS2 uses to make this even more frequent.
The Three network is pretty flaky, and relies on 'borrowing' signal from other providers. This means EVEN MORE changes. The SGS2 doesn't deal with changes particularly well and due to the sheer number, often gets stuck when a new connection is formed. Cycling data connection will fix the problem temporarily
I get this problem with stock firmware a little and custom firmware a lot.
I do not want to be stuck on KE4 forever and I do not want Three's stupid games installed. I am very annoyed.
Update 19 August 2011
I spoke to Three today. I explained what happened and both the first line rep and his manager knew the problem that I have. They acknowledged that it is an issue that they are in talks with Samsung about trying to fix.
They told me that I can have an exchange, but that EVERY SINGLE ANDROID PHONE ON THEIR NETWORK has this problem.
However they still refused to give me a refund as I'm (well) out of my 14 day cooling off. I told the guy that under the Sale of Goods Act, if something doesn't do what it says on the box I can get a refund for an indefinite 'reasonable' amount of time.
I am getting a call back from his superior this week. Will report on progress, but this is big. Three are selling phones that they know don't work properly on a mass scale. I am going to use this to my advantage.
I bought mine sim free. Was on t mobile for a while and moved the 3 a couple of weeks ago. I've not noticed any problems as you've described. I once had this on O2 though and it turned out to be a localised network fault.
Are you using juicedefender? JD caused that same problem with my old Milestone, but so far it's fine on SGS2 on Three.
mike freegan said:
Hi guys. I have this phone on Three here in the UK and annoyingly, several times a day, the data stops working. It gets stuck with the uploading arrow in the bar (no download) and will just sit there.
Cycling the radio / flight mode brings it back to life for a few hours. Does anyone else on Three experience this? I need to know if mine is a faulty handset, or if its a network problem.
This happens regardless of which ROM I use.
Cheers
Click to expand...
Click to collapse
Mike, mine is exactly the same. It will absolutely fly for most of the day (even sometimes days at a time) and then it will just get stuck. Press and hold power to deactivate, and reactivate 'data network mode' and is well again till next time.
Seems to happen more when the phone has been sleeping for a prolonged time but not always the case. Doesn't appear to be any pattern. Changing ROM makes no difference here and I've quadruple checked my APN settings.
mike freegan said:
Hi guys. I have this phone on Three here in the UK and annoyingly, several times a day, the data stops working. It gets stuck with the uploading arrow in the bar (no download) and will just sit there.
Cycling the radio / flight mode brings it back to life for a few hours. Does anyone else on Three experience this? I need to know if mine is a faulty handset, or if its a network problem.
This happens regardless of which ROM I use.
Cheers
Click to expand...
Click to collapse
Known issue.Is not carrier dependent.Same here with Vodafone Greece.Some guys told that is hardware fault and some software.I think is software problem
Sent from my GT-I9100 using Tapatalk
It is the modem firmware. Once I updated to kf2 modem the problem dissapeared.
Sent from my GT-I9100 using XDA Premium App
This happens to me most days, I have been rebooting to get back online. I will try the flight mode on and off to see if that helps.
But this is obviously a problem with Three network. I just thought it was Three`s sneaky way of throttling my "as much as you can eat" data plan.
I have KF2 modem and the issue continues.
I am glad to hear that others face the same problem. Is anyone in the UK on another network experienceing it? My friend is on Vodafone and we have the same ROM. He does not experience the issue at all.
Does anyone have a link to a thread which documents this issue?
I rely on Whatsapp and Email for communication, and this stops both from working. I might actually have to send my SGSII back if it continues
I'm on Three UK and have not experienced this problem yet. Shall let you know if/when I do.
Sent from my GT-I9100 using XDA App
Ive definately had this recently. didnt have it b4 though.
I have this problem. Stops my LiveProfile from working properly. Its very random too.
Can be quite annoying.
Hopefully it's a software problem rather than hardware. Only time and updates will tell.
I'm on o2 network with stock KE7 XEU firmware.
Same as op. Three and on ke7
Just went to kf2.
Will see what happens
If anyone manages to fix this, please share.
Incidentally, my bluetooth does a very similar thing with my car stereo. It just freezes and requires cycling off and back on.
I'm on three and get the same issue.
I also do the flight mode recycle.
I'm also using juice defender.
It's not a major issue for me more of an annoyance
Sent from my GT-I9100 using XDA App
I just remembered something you can try. Change the APN from ( i think) three.co.uk to just 3INTERNET.
I also having this problem from last week. Before I do not have this problem. May be network problem.
Sanchless said:
I just remembered something you can try. Change the APN from ( i think) three.co.uk to just 3INTERNET.
Click to expand...
Click to collapse
So far, this appears to be working!
(although I can no longer check my usage on the Three mobile website, but that's not too much of an issue)
I'll keep this thread updated with my progress.
Incidentally, I did not get this issue until I started flashing ROMs - or at least I didn't notice it.
I've been having this issue the past few nights on Orange. Fine during the day but at night the data stops.
Reboot the phone and it comes back. Just about to try KF2 modem to see if that helps.
yeh i have the same problem.... i can be going on internet browsing away then 4-5 pages in it just stops... and takes 1-2mins load and then just stops all together.
i dunno why its doing it...
im gonna call THREE in the morning ask what the hell going on.
also the H is soooooooo slow
3G when working is ok speed, but omg H is slow as
adamantell said:
yeh i have the same problem.... i can be going on internet browsing away then 4-5 pages in it just stops... and takes 1-2mins load and then just stops all together.
i dunno why its doing it...
im gonna call THREE in the morning ask what the hell going on.
also the H is soooooooo slow
3G when working is ok speed, but omg H is slow as
Click to expand...
Click to collapse
Please do let them know that a number of us are experiencing this. Although it doesn't seem limited to THREE, it definitely isn't on every handset.
Mine still hasn't done it since I changed APN as recommended above though.

Loss of network once signal is lost, anyone else?

I have noticed that once the signal is lost, sometimes the xperia mini can't find the signal again. You are left with the little yellow triangle in the notification bar, but until you toggle the radio on and off, it will not find the network! Or is it just mine, latest firmware on 3 in the uk.
I have not noticed complete loss of signal but even if its laying still on my desk it keeps going between GSM and UMTS for no reason at all (xperia mini pro model). My old X10 mini pro on the same spot on the desk was rock solid on UMTS.
I also noticed that it sorta gives up searching for a signal after a while. I guess it's good in the sense that it'll save battery...
Clivectmob said:
I have noticed that once the signal is lost, sometimes the xperia mini can't find the signal again. You are left with the little yellow triangle in the notification bar, but until you toggle the radio on and off, it will not find the network! Or is it just mine, latest firmware on 3 in the uk.
Click to expand...
Click to collapse
Same here, also on 3 network in UK. Actually it's on my OH phone so it's imperative I get this fixed ASAP!
She has discovered that it also affects texts and Gmail too, nothing is sent or received until the yellow triangle goes. She has discovered that if she tries to make a phone call (but not needed to actually answer the call, just wait for the call to start ringing and then hang up), it clears the triangle and the phone reconnects to the network again. Then she will receive any outstanding texts and emails etc.
I wonder if this is a 3 network specific issue? If so, then I am sure flashing a custom ROM and Radio should then fix this issue?
Actually, you know what, I think you may have a point there with it being with 3, cos I had major problems with this 3g H H+ switching issue on my galaxy s 2, it seemed to only affect some ppl on some networks, 3 being one of them, however, I also have a galaxy s 2 again now, and now, (a few months on) it seems to have fixed itself. A lot of the networks, it seems are rolling out software updates or changing actually hardware to get themselves up to speed with protocols such hspa+ so it could be something that irons itself out eventually. Lets hope.
I have the same problem. The duration of loosing network can be shortened if you set WCDMA or GSM only. In case of choosing both of them the phone switches between and can loose the network for a long time. But even if I use GSM only after loosing network it can reconnect after 1 minute and more. It annoys me in the underground - the cells are located at the stations so the phone sometimes can not connect to the next cell on the station during passing it and I have to wait for the next station for recovering of connection.
Hi, I also have the same issue.
Sometimes I turn the screen on, I see a yellow warning in the status bar and have no signal.
A few secons later the device is registering again in the network.
I observed that the signal is also not very stable. There are many signalchanges on the same position, between cdma and gprs (3g,hh,edge)
I don't think it's the Provider, because my old x10 mini pro as not the effects.
my Provider: Germany Telekom (D1)
my Firmware: 4.0.A.2.335
I have no idea what cause this problem. I hope it's the firmware. Maybe the rest can check if you got the same like me.
I have the same problem. Often the signal just goes away during conversation as if I went into a tunnel, even if I don't move at all and I am in the place where there is good signal. The call hangs and the yellow triangle appears. After 10-20 seconds, the signal is recaptured and I get full bars again. This is obviously some kind of software or hardware bug. It is as annoying as the famous noise problem and it MUST be addressed.
Yeah, I've got the same issue w/ T-Mobile in the US.
My G1 never had this problem...
This happened to me also with my ST15i mini. What I did, was i switched into manual in network selection from automatic and after which it never looses its signal.
kenchi27 said:
This happened to me also with my ST15i mini. What I did, was i switched into manual in network selection from automatic and after which it never looses its signal.
Click to expand...
Click to collapse
I'll give that a shot. Did you also select GSM only, or did you leave it as GSM/WCDMA prefered?
edit: Doesn't seem like it worked... GSM only and T-Mobile selected manually, and I still lose network sometimes for no reason.
I also having the same problem on my sk17i...
Normally once I start holding my phone, the signal will completely gone
happened to me also with my sk17i.
Same problem here with my sk17i. That's really annoying!
Carrier: Orange
Firmware: 4.0.A.2.335
OS: 2.3.3
Yup. Happened to me aswell
Sent from my SK17i using XDA App
tobasa said:
happened to me also with my sk17i.
Click to expand...
Click to collapse
No more problem since updating to latest firmware 4.0.2.A.0.42
Sent from my SK17i using XDA App
+1 for reception issues in Australia on Optus on populated areas and even in the open. Shouldn't be happening. Still on .368 but.
Same thing here in Australia. signal is weak and sometimes it gone 4 ever with the yellow sign !
3G signal drops to me!
I have an ST15 using firmware 42, I'm in Brazil!
Xperia Ray, 42-Firmware: Also bad 3g-Signal in Germany, Eplus!

Sick connection issue.

Today I'm having issues with 3g connectivity on my Lumia. The phone just doesn't connect no matter what. I tried restarting it, pulling the SIM but no luck. At first I thought: my bad for cutting the SIM card myself, maybe after some time it got messed up. When I came home I grabbed my gf's 710 and it was behaving the same way (her SIM card is brand new). Coincidence? I don't think so. A friend of mine with the same carrier (H3G) just told me he had no issues whatsoever connecting using 3g connectivity, and he has a Nokia N97. This is starting to piss me off...anybody else having connectivity issues today? It must be something Microsoft/Nokia related. God I'm about to throw this thing off the window.
3g connectivity
I had the same issue the day i bought it..had to reset the phone for 3g to work again and today i face the same issue again!
Abhinavad3r said:
I had the same issue the day i bought it..had to reset the phone for 3g to work again and today i face the same issue again!
Click to expand...
Click to collapse
My God I hope this is not the case, that would be annoying as hell...this is just too weird, why would this happen on two phones at the same time? Geez this is worse than on Android...
Hoping the same..Even im waiting for a workaround to make 3g work on my phone.
Ok, I just woke up and tried again, it works now Microsoft/Nokia have to do something about this tho, this is not acceptable...
Doesnt work for yet..still unablle to figure out why whatsapp is running fine but no other 3g activity happening. Please let me know if u had to do something for 3g to work.
Abhinavad3r said:
Doesnt work for yet..still unablle to figure out why whatsapp is running fine but no other 3g activity happening. Please let me know if u had to do something for 3g to work.
Click to expand...
Click to collapse
Nothing special really, I simply let it charge overnight, picked it up in the morning and it was working. Yesterday I tried everything: plugged it to the pc, switched flight mode on and off, tuned it off for a few minutes but no luck. The last option would have been draining the battery completely then plug it to the pc to turn it back on, but that wasn't necessary. Really weird...i still need to check if my gf's 710 is working now.
Seriously, this is not good. I noticed it since yesterday again. I had it when I first got my Lumia. I have weird issues such as being able to stream music non-stop over 3G, yet being unable to make or receive calls. What I do to make it work? I switch to airplane mode and back.
I got both Lumia and MicroSIM for free; didn't have these issues for weeks. I got the newest firmware (12072) using cab sender, might be any constellation? Typed on my Lumia btw
Apparently my gf's phone is working as well now, gotta love these random bugs...
Happened the same here, suddenly I got no signal at all, tried everything, didn't want to format the phone so I just waited and some hours later connection was back, but 2g only, next day all was fine with 3g also workin
Sent from my Lumia 800 using XDA Windows Phone 7 App
All issues are suddenly gone for me. Wtf
I've been having this exact problem for a couple of days now, i already called vodafone but they cant help me... WTF is happening?? no signal
same thing happened to my mate.. have you installed the latest update.. his issues went away after install??
luminated said:
same thing happened to my mate.. have you installed the latest update.. his issues went away after install??
Click to expand...
Click to collapse
I was already running the latest firmware when I faced this issue, it's not a matter of that I guess...
Sent from my Lumia 800 using XDA Windows Phone 7 App
same here, does anyone have a solution? im a bout to trade this piece of S%$& for a iphone ...
ragdoll20 said:
same here, does anyone have a solution? im a bout to trade this piece of S%$& for a iphone ...
Click to expand...
Click to collapse
How long has it been going on like that? Mine started working again after about a day...
6 days now, really getting pissed off. I think its just a faulty model. I'm gonna try to factory reset. Anybody have any other ideas?
6 days is a pretty damn long while...do a factory reset and if the issue is still there you should definitely get it checked. I had no idea this thread would have gethered all of these people, this is something that Nokia should be really looking into...
So i called vodafone and they told me that when i took my new 2 year contract (and got the phone) i also got a new sort of contract that slowed down my internet.. while this makes sense it also doesnt because the speeds they were talking about should still have been fast enough.. But since i also only had 500mb i upgraded and the problem is now gone. everythings really fast again.
One question though: When i pick highest network setting i can only choose 3g.. but with my current contract plan i should get "H". anyone have any info on that?
vnvman said:
6 days is a pretty damn long while...do a factory reset and if the issue is still there you should definitely get it checked. I had no idea this thread would have gethered all of these people, this is something that Nokia should be really looking into...
Click to expand...
Click to collapse
ragdoll20 said:
So i called vodafone and they told me that when i took my new 2 year contract (and got the phone) i also got a new sort of contract that slowed down my internet.. while this makes sense it also doesnt because the speeds they were talking about should still have been fast enough.. But since i also only had 500mb i upgraded and the problem is now gone. everythings really fast again.
One question though: When i pick highest network setting i can only choose 3g.. but with my current contract plan i should get "H". anyone have any info on that?
Click to expand...
Click to collapse
Ok let me explain what is going on. In Holland (Im dutch also) we have "H" as the symbol for an ACTIVE 3G connection (meaning downloading/uploading data). Where "3G" means an inactive (or not consuming data) 3G connection, this is not worse than H, its the same.
On the US version you will see 3G when not downloading and 3G+ when downloading (which is the same as our H). Whatever letter there is does not matter as long its not a G you have your max speed.
Now also notice that there are a lot of areas where providers can not peovide the maximum speed (crowded/low signal/etc). Make sure you check your speed with full bars and dont be paranoid with data tests. If the speed is reasonable and IE9 can load a decent page, than its ok. If it wont load a page than your 3G does not work.
If your 3G does not work (what was the case for some of you) than set the APN settings manually to your peovider (or use the Nokia Network Setup app), goto Settings --> Cellular --> Edit APN.
Now 3G will work.
Again dont be bothered about whatever Icon it shows, H, 3G or 3G+ its all good (or 4G). As long as there is no G or E you will have the highest connection your phone can receive. This does not guarantee your provider can deliver you what you pay for (probably you get much lower speeds) and they might also cap your speed if you surpass your datalimit (as does TMobile NL with "unlimited internet").
Good luck

[Q] Samsung Galaxy S3 Data freeze.

Hi,
I'm new to the forum so apologise in advance if this is a stupid question.
I recently bought a Sim Free S3. I haven't rooted it as i'm quite happy with the stock os for now. Everything had been working very smoothly on it. But since getting the over the air update for it my data signal randomly drops out or freezes. It seems to do it over WiFi too. It does this even though it shows a wifi connection or with the H+ visible. I've also noticed it cycle through H+ to 3G and back again.
Sometimes the signal works again on it's own and other times i have to switch the phone off and on aain.
I find it happens on tweakdeck the most but has also happened whilst browsing the net.
Do you think this could be linked to the update or could this just be a coincidence and there's an underlying hardware fault.
Let the new update run for a little bit...let it settle in
It might just be the spot u in and I doubt its the phone
Might be uodate but how long u been on the update?
Sent from my SAMSUNG-SGH-I717 using xda premium
Think the update came through on Tuesday.
Will give it a few more days to settle and see how it goes.
Thanks.
Still having an issue with this.
My internet worked all weekend then today started to fail on me again today.
The phone shows a HSPA connection but will not download any data.
I know it's not the network as my wife is on the same network and is having no issues.
Any help will be greatly appreciated.
Same problem
I am having the same problem here. I just bought SGS3 about 3 days ago and I started noticing data drop out yesterday. I wish someone could help me. I was hoping the problem to be solved by the time we get firmware update.
BTW, I am also having problem using usb tethering or wifi hotspot. After using usb tethering for about 10 minutes, it stops connecting although the phone still has data connection.
Is it hardware or software problem???
Thanks!!!
having the same issue after power saving goes on i lose h+ until god knows when

[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.

Categories

Resources