I hope someone can help me with this, I've been having major problems with 2G/GSM coverage on my Xperia Ray.
Basically, I have 2 Xperia Rays and 1 SIM card. 2G is not available on one Ray in my home area. In fact, it's not even shown as an option in the 'Network Operators' but I can see 2G available for other networks in the menu. 3G/WCDMA coverage seems to be unaffected. My other Xperia Ray (using the same SIM card) picks up 2G at home no problem.
Now here's the weird bit, if I leave my home area (e.g. if I'm in the city a couple of miles away) the affected Ray has no problem at all with 2G coverage, it works perfectly! Once I return to my home though, 2G is 100% unavailable. And as I said, 2G works perfectly on my other Ray and all other phones using the same network in my home.
I spoke to someone in my network (O2) and they assured me that it's nothing to do with the IMEI number the affected phone falling foul of my local mast as regards 2G coverage, so what could the problem be? It's not a SIM card problem, and the fact that 2G works perfectly everywhere else seems to indicate that it's not a problem with my phone hardware either.... I have an unlocked bootloader so PC companion & SUS aren't doing any good, and flashing a new ROM/Kernel via Flashtool hasn't resolved the problem either, darn it.
I'm totally stumped here.. might anyone have any ideas?
Related
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?
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!
Hi
I have Xperia Z tablet SGP 321 from yesterday I have no internet thru my cellular network. It happened once before but it was sorta different last time I didnt had any reception I searched and searched I couldnt find any network that I could register. This time I have full reception but no internet. No H or H+ eller 3G I just see there is reception. I have no problem with Wifi its working as it is. What could be the problem... as when I tried that sim with another phone it works and when I try another sim with internet that works aint working in Xperia Z so it must be the tablet. All apn and other settings are as it is nothing is changed.. why did it stop suddenly?
Almost 4 months of having this problem. I dont know exactly what have caused this. I have a D6503 device, and when I tried to register to 3G or 4G network, the device looses the signal "emergency call only", but when I check GSM only the signal comes back. I remember the time when I open *#*#4636#*#* and selected USA band only, that time I looses signal. I reflash my D6503 using flash tool. and the signal comes back. but I dont know exactly if the cause of having no 3g or 4g signal was the result of that. i cant remember anymore. I hope someone here could enlighten me or give me some idea if what exactly is the problem of this unit. Im sure that the simcard reader is fine.
borjok536 said:
Almost 4 months of having this problem. I dont know exactly what have caused this. I have a D6503 device, and when I tried to register to 3G or 4G network, the device looses the signal "emergency call only", but when I check GSM only the signal comes back. I remember the time when I open *#*#4636#*#* and selected USA band only, that time I looses signal. I reflash my D6503 using flash tool. and the signal comes back. but I dont know exactly if the cause of having no 3g or 4g signal was the result of that. i cant remember anymore. I hope someone here could enlighten me or give me some idea if what exactly is the problem of this unit. Im sure that the simcard reader is fine.
Click to expand...
Click to collapse
I hope someone here could help me figure out this problem. The 3G and 4G signal on my place is OK. I have a correct APN for this. But the problem is, everytime i enable data, i looses my signal, and my simcard cant register to the network. and a message network not available. When i search for networks, LTE, 3G, GSM will appear, and when I click LTE signals, the phone cant register to network, and I will have no signal then. If i choose GSM (2G), that's the time that I can have a network signal. Would it be posibble that the antenna are defective? (the smaller one where the other end of the wire attached, I think its the board rf aerial PCB flex cable ? I hope some one here can help me
Hi,
I have Asus zenfone max pro m2 phone with airtel sim. At my home, I get almost zero connectivity (both voice and data), all the time. It works perfectly fine in other places, but, I think it might not still be the best though, I do see some minor drops in connectivity every now and then, in other places too.
I placed the sim in another phone(redmi note 4g) at my home. It gets good voice and data connectivity (4g with decent speed). So I think the problem might not be with the sim. It should either be with the phone or something to do with airtel's cell towers.
I have attached the screenshots of phone information in both the cases (my phone with no connection and redmi note 4g which has good connection)
I think the reason might be either the phone has a bad radio/modem hardware or software. Or there might be problems with connecting to some cell towers. I think there are more than one cell tower nearby and somehow my phone is ending up not being connected to either(something to do with cell tower handoff!?). I sometimes see the phone getting connected to 4g/edge, but quickly drops. I do have JIO sim and it works fine. I have tried several things, both basic(switching sim cards, placing only one sim card, reset network, reboot etc etc.) and advanced(trying out different roms, locking bands with network signal guru), but no luck, anyone facing similar problem or has any solution? If its some kinda software problem, I can try flashing some software(kernel/modem?), I have my phone rooted.
Thanks in advance