[Q]Poor network as a hardware fault? Also memory card issue. - Galaxy S III Q&A, Help & Troubleshooting

I have my I9300 few months so far and never had any issue with it. I'm with three network in UK and used many different custom ROMs and KERNELS, but usually stick with OMEGA and PHENOMENAL. Few weeks ago I've found that internet on my phone slow down. Also in my place, where I always had H+ good signal I have now only H. After couple of tests (speednet) it shows that I can go up to 10mbit/s so it was more less OK for H but normally I had between 12-15mbits. I was still able to catch H+ in different locations, but my speed with H+ dropped down to 500kbit/s (download) and with upload it was no connection at all (still had full bar H+).
I've changed ROM, KERNEL, MODEMS, went back to original, done 100s wipes and still the same. I've cleaned the phone, reset flash counter and sent to three to fix. I've just collected it from the shop and have a letter that they replaced some hardware and it's fix, but I'm not happy with it - in my place I can only connect to H, not H+ (my wife's S3, same network has H+ all the time). When I have H+ in some places, download speed is up to 2-3mbit/s and upload 2mbits, so still way to slow.
Does anyone experience any similar problem? Should I send it back to 3 for a fix?
The other issue I have is with my memory card and I've seen it around, so it's not only me. Had 2-3 cards so far and with JB it keep saying 'SD Card Removed Unexpectedly' or 'Preparing SD Card' or even 'SD Card Damaged' when wake up from deep sleep. This was second issue I asked for repair when I've sent my phone back to three for a fix. Guess what? It's still the same, happen again as soon as I've put my card back in. It's not the card fault, because I've already checked 3 cards with the same result.
So, I had two serious issues (I think) and few hours ago collected phone from the shop as a 'fixed' and problems still exist. What do you suggest, should I send it back for a fix? How to deal with them? Maybe it's only me and I should live with my issues?

For the signal issue, have you done a signal test with the carrier? Usually they have them on their website you can test the signal strength in your area. As well as are you city or rurally based? Because that can be an effect.
Maybe it is you from a freak or rare problem. If you can live with it depends on how much it would affect what you do. If you're by Wifi for the majority of your browsing or data using time it shouldn't be a problem, but if you're out and use it then maybe it might be an issue.

The problem is that I've always had great signal in most places around Liverpool incl the one I live now and my work. Now I have only 'H' speed and in some places, where I catch 'H+' ironically speed is worse. Other people with the same phone and the same network still have H+ in full speed.
I don't care when I'm at home, like you said, can always switch wifi on. Problem is when I go somewhere and want to use internet. It makes different, everything net related is slow.
I don't understand only how come they gave me my phone back with 'repaired' note, where the faults are still the same... Probably they just wiped everything, flash it with new official system (which was there anyway when I've sent them the phone) and sent it back to me.

i suggest you take it back to maintenance, may be a hardware issue.

Thanks, will do it and fingers crossed this time someone will fix it.. This will be second time with the same issue, with third one I should get new phone

Related

[Q] Sudden loss of signal

I'm on Vodafone UK, at some point this afternoon lost my signal, just had the no signal icon when I checked my phone.
I didn't change any settings, it was working fine received a couple texts, went to reply later and had no signal.
1st I tried going to settings->wireless settings and switching phone off and back on, no joy.
2nd tried Switching phone off and on, no joy
3rd tried settings->menu->all setting->personal->phone->network change network selection to maual, then select vodafone UK from list, still no joy
4th put network selection back to automatic, no joy.
5th turned data connection off no joy
Put my sim in girlfriends unlocked Nokia worked fine and I could make a call.
Returned sim to my phone.
I have noticed it will stay on no signal for ages, then will be trying to find a signal, will appear to have found just a phone signal (full strength) but attempting to make a call will just sit on the dialling screen for ages but never connect and then gives up without an error message after about 40 seconds. My data connection is off when it finds a signal, if I switch it back on it seems to be trying to connect GPRS then after a while back to no signal. Leaving it alone when it appears to have found a signal it stays for anywhere between a few seconds and minutes before going back to no signal.
Sorry my post isn't easier to read, been up since 4am getting tired now, and my phone is doing my head in.
Just to stress again my phone went from working to not just sitting on the table no settings changed or anything. Please help
I had a similar problem to this after flashing a ROM. My signal will be ok for an hour or 2 then disappear, never to return. If I switch 3G off it seems to solve it for me.
Me too
Xenton, I'm on VF UK with 1.72 ROM, and also have random signal drop outs. It happens even when static in the rear part of my house where I can see for 30+ miles and must have line of sight to multiple masts. The coverage maps on VF's website say the phone should be getting good signal, but sometimes, as you say it drops out, to return soon, later, or (but only very occasionally) not at all. I hard reset my phone a short time ago, so I'm pretty sure it's down to the ROM/radio. I've the feeling it's something we just have to live with, unless we wait (forever?) for the VF UK 3.14 ROM or install the WWE version.
Yorkshire Yellow said:
Xenton, I'm on VF UK with 1.72 ROM, and also have random signal drop outs. It happens even when static in the rear part of my house where I can see for 30+ miles and must have line of sight to multiple masts. The coverage maps on VF's website say the phone should be getting good signal, but sometimes, as you say it drops out, to return soon, later, or (but only very occasionally) not at all. I hard reset my phone a short time ago, so I'm pretty sure it's down to the ROM/radio. I've the feeling it's something we just have to live with, unless we wait (forever?) for the VF UK 3.14 ROM or install the WWE version.
Click to expand...
Click to collapse
Hi,
Thanks for the reply. At work this morning my phone was working fine, then when I returned home same problems, no resets or changing to settings. All this makes me think it is a problem with VF, I have posted on the eforum but this is my second day without a reliable signal at home now after 2 years faultless coverage at home. If it keeps up, I may have to drive to a signal and call VF. Did you get your phone through VF, if so you should get onto them for a replacement or repair if it is your phone.
One other curious thing today at work I got some txts from VF which automatically change setting for mobile internet and picture messaging. They still worked fine at work, but I hadn't requested the settings be sent and the old ones worked fine, but then so do these new ones, just not at home, where I am mostly signal-less.
Xenton,
I used to be unable to send MMS's until I hard reset my phone. Oh, and despite requesting the MMS settings via the customer services and the VF web site, nothing ever arrived on any of the occasions it was supposed to.
I'm out of my initial contract after a year, so think I'll do well to get a new hand set. It's more of a relatively minor annoyance, as opposed to what seems like your more significant issue.
It only really happens a noticeable amount at home, so I’d put it down to something to do with the number of cells my phone could presumably see, and perhaps it getting ‘confused’ (?).
I’d be interested to hear what you find out on this, if you reach a resolution/find a solution.
YY

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.

Sudden signal problem

i thought this would be the best place for a problem i started having about2 weeks ago. i am on vodafone uk.
i used to get 3-4 of the 4 bars reception while sitting at home(as an example). suddenly i was getting 1-2 and sometimes none (all blank).
i thought i would try and eliminate things one by one so here is what i did...
checked with my sim in another phone and another sim in mine. from memory the other phone having my sim was slightly down but not much and my phone with the other sim didnt really change much.
i checked with vodafone by calling them, they said they couldnt see any problems on the network, birmingham uk, but would send a new sim, after getting the sim activated when it arrived, no better. their onling forum is still waiting for a response back from their technical whether there is any problems. i dont see how the phone department can instantly tell me when the technical need many days to find an answer.
i thought it could be the rom so i first updated lite'ning rom to resurrection remix and then to a later version of RR and no change. the newest version of RR has a different kernel, flux i think, than the siyah in the 2 previous roms but again that different kernel didnt improve it. lastly i even changed the modem/radio trying to different ones to the default, xxlpx and kh3 and again no difference.
the only thing that improves it is turning 2G on instead of 3G. the bars go back up to 3-4. even with 3G on previously as i never changed it before it was always fine.
i know this is a long post but i wanted to be thorough as i really appreciate any help as i am now lost as what could improve this.
Mispost
anyone?
I have been having a similar problem on Three for about five weeks now. Despite numerous reloads of Android and modems etc I was getting no results, 5mb dl speeds have dropped to around 150kb despite having a good signal.
After many many calls to so called customer service I have discovered that a new cell tower near to me has been activated as part of the network expansion program and because this cell is closer to me than the one I used to connect to I now get a stronger signal from this so my phone always chooses this. Problem is this cell has only got a 2mb feed INTO it, its a TMobile/Orange cell now being shared with Three....so I am basically fooked.
Check with Vodafone if they have done anything similar recently near you. Three are adamant there are no problems my end, technically they are correct I suppose, its all working, I just cant access the net without it timing out constantly now.
Atb
SST
I am having the same issue with my phone. I get only one bar (sometimes none!) whenever I'm home & I'm on WiFi; however, I get full signal strength when I'm out & on 3G.
Sent from my GT-I9100 using XDA
i thought it could be the cell tower thing as there is only 1 vodafone one in quite a large radious, about 2 miles, and many of all the other networks. i dont know why vodafone are happy to have 1 compared to at least 3-4 each for all other providers.
this morning i drove that 1 mile to the vodafone mast and ran fresh network and surely that would have connected to that as i was 5 meters from it. still no better. ??
Just try NELP3 modem once... I had done similar issue once.. Now my network is better..
is nelp3 okay for uk though?
Try flashing another Modem. Im from Germany but i had similar problems. A new Rom would do too i think
All
Sent from my MB525 using Xparent Cyan Tapatalk 2
Christiancs1969 said:
All
Sent from my MB525 using Xparent Cyan Tapatalk 2
Click to expand...
Click to collapse
not sure what you mean with 'all'
Number of options, tower may be having problems, maybe some form of interference, try a different modem, try different sum card if you have one spare?
Sent from my GT-I9100 using xda app-developers app
i do have the same problem as above, no signal in the building and 50% signal outside building. I swithch my SIM with fren's (he use another telco), and his SIM not work on my S2 and my SIM work on his phone (not SIM issues).
I tested many modem as recommented , LP2/LP3, LP9, LPX, KI3, KI4, KF2, no luck.
I flash different ROM, (some old version that work before), from CM9, AOKP, Sammy. no luck.
I restore old back up ROM. no luck
Fix permission, no luck.
any advice ?
OK next step is to flash a different modem
Sent from my GT-I9100 using xda app-developers app
i've tried a few modems including the ones people believe better, all have this problem so far.
it may be the network mast in my case. i discussed with vodafone what 3G mast i was connected to and then which 3G mast is next closest. i then went right next to that other 3G mast and the signal was full bars, no fluctuation at all. this surely means it is either, 1-the network mast i keep locking to having problems or 2-all the modems i have used favouring battery over strength and not getting enough power to get a good signal.
is there a way of finding out which modems are better for battery and which are better for signal strength?
Umm not that I know of, best thing to do for that is either research the modems for better strength or battery etc, or just test some yourself, however that is time consuming,
Personally I think it is just the mast having problems, however I may be wrong
Sent from my GT-I9100 using xda app-developers app
i thought i would add a little research to this thread, not too much but just my experience with 3 specific modems.
the background is that recently i have started getting very poor network signal as i believe the closest 3g mast to me is having problems. if i turn to 2g its better as the phone then connects to the closest 2g tower which gives better network signal.
i know that a modem should be left for 2-3 days before judging but i thought that if a modem is currently better than another then that is only likely to stay the same with time as long as they were given the same short period of time.
i used the app network signal info and did 3 5 minute tests for each modem and then averaged the percentage of the signal and also averaged the -dbm also.
i first used the modem i currently had on there, BUKI1
- average percentage was 19%
- average -dbm was -103
both very poor scores
the signal was very jumpy up and down also
i then flashed the custom modem, i think by krs007, M250S
- average percentage was 44.6%
- average -dbm was -90.66
obviously a huge increase
the signal was very steady, hardly changing from that average
lastly i flashed NELP3
- average percentage was 30.66%
- average -dbm was -97.33
better than at first but not as good as M250S
i am now going to let M250S bed in for a few days while keeping my eye on here for how NELP4 performs but so far i have a huge increase in signal in a previously very poor area. as this is also due i believe to the tower having problems, hopefully it will only get better.
Try downloading OpenSignalMaps from Google Play Store. For starters, you can determine the approximate location of the offending cell tower (if the cell tower was indeed the culprit). Sometimes, i realise that the phone tends to stick to certain cell towers when others are in closer range and could purportedly provide a better radio link. For this, the app provides a refresh feature that allows you to manually trigger a cell tower refresh. I am aware that most apps requiring connectivity have this feature but i don't suppose you can call the refresh on trigger.
Hi Marc
Tracked down a copy of M250S(dont know if its the same as you have installed though), and very briefly, as in 30 secondsish, I had 4 bars and dl`s around 5mb again!.But midway through it dropped out and that seems to be the pattern. Seems to be having problems locking onto a cell, signal bars frequently grey out, maybe its a compatibility issue with CM9, I dont know.
Anyway, let us know how you get on,
Cheers
Chris
it probably is the same as i dont think any others have that name.
it probably just needs to bed in for a few days. i have noticed mine go between 3g and H quite regular but it always does that, i havent had any dropped calls or similar so far.

[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.

mate 10 pro - intermittent 4G

Since about a week, I'm having issues with my 4g. It used to be super reliable and fast, but there are moments now where it completely grinds to a halt and then picks up again few minutes later.
I've already checked with my provider but I have unlimited data, so it's not a throttling issue.
Is there any test or app I can use to see if there's a hardware issue? Any other suggestions to find out the issue?
Thanks!
What did your provider say? maybe they have some problems with the network. maybe sometimes there are too many people in one place. maybe you need to try another sim card. maybe its bad coverage.
Have you turned on/off the fast LTE Mode in Network Settings?
Try factory resetting your phone.
I had the issue with my provider. Later i found out that they had a special giveaway of 100gb data to all customers. I think thats what caused it although they didnt agree.
I couldn't get 4g at all around my house.
Since I updated to 128 I now get 4g intermittently at my home address whereas before not at all ?

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