Hello,
I have a huge problem with my Galaxy S5 SM-G900F. I bought it abroad and when I used it for the first time in my country I saw, that there is a problem with 4G/WCDMA connection. When I put my sim card to the phone and set all the preferences in mobile connection menu to "Auto" there is no possibility to call or to recieve calls (even if i saw signal strength meter showing some marks). I can only recieve and making call when I set "only 2G" option and manually select my network. But signal is also very poor.
What I have checked yet:
1. Other sim also doesn't work good.
2. After *#06# i saw my IMEI and it is the same under the battery and on the box (doesn't start from "00") so i think that it is not missed (efs folder).
3. Change firmware with KIES and ODIN for the other version - no changes. Also flash some other "modem" files with Odin with no success in better signal.
4. When im on the free air the signal strength is even at maximum level, but immidiately after going to my house - there is no signal. I saw also, that when im in the city i can connect with 2G network (only), but when im on a village there is no signal at all (even 2G...)
Do you have any ideas what can be wrong? Is this hardware failure? Maybe something with antenna? What should I do before going to gsm service center? Maybe i should change kernel and try some of the custom roms?
Thank you for your help.
regards
Mario
Related
Hi experts,
Very frustrated with the SGS phone GT-I9000 I bought a week ago. I keep getting "Data network not available" while trying to make merely voice call (in area with poor signal).
However, I have no problem making call using old Nokia phone with the same SIM card.
The GT-I9000 was upgraded to Froyo 2.2 (DXJPE) lately.
Anyone encountered similar issues? What's wrong with this Android phone, modem issue?
Regards,
Void
That new i would return to seller and get them to check phone under warranty .
jje
i got the same problem after upgrading to froyo, im from Panama, but i flashed my device following some UK guide, so i flashed it with another CSC, so if you did so, we both lose our network settings, so you have to set up the APN manually.(thats what i read) but i did so and i still cant make calls nor receive 3G
It happens on EDGE. Make sure you've selected the network to operate in WCDMA only..
Switch the Wireless and network -> Mobile network settings -> Network mode to "GSM only" or "WCMDA only" but doesn't resolve the issue.
However, I notice when the problem occurred, the Setting->About phone -> Network showing "Unknown" but the Signal strength seem to be OK, fluctuating between -87 dBm 13 asu (with 4-bar) and -111 dBm 1 asu (2-bar )
Probably, SGS transceiver/modem is not as good as Nokia E71.
Anyway, I guess I can only use this "smart" phone in city area.
in my case the problem was the orange phone card. i have changed it.
Hello,
I have a huge problem with my Galaxy S5 SM-G900F. I bought it abroad and when I used it for the first time in my country I saw, that there is a problem with 4G/WCDMA connection. When I put my sim card to the phone and set all the preferences in mobile connection menu to "Auto" there is no possibility to call or to recieve calls (even if i saw signal strength meter showing some marks). I can only recieve and making call when I set "only 2G" option and manually select my network. But signal is also very poor.
What I have checked yet:
1. Other sim also doesn't work good.
2. After *#06# i saw my IMEI and it is the same under the battery and on the box (doesn't start from "00") so i think that it is not missed (efs folder).
3. Change firmware with KIES and ODIN for the other version - no changes. Also flash some other "modem" files with Odin with no success in better signal.
4. When im on the free air the signal strength is even at maximum level, but immidiately after going to my house - there is no signal. I saw also, that when im in the city i can connect with 2G network (only), but when im on a village there is no signal at all (even 2G...)
Do you have any ideas what can be wrong? Is this hardware failure? Maybe something with antenna? What should I do before going to gsm service center? Maybe i should change kernel and try some of the custom roms?
Thank you for your help.
regards
Mario
mecenas666 said:
Hello,
I have a huge problem with my Galaxy S5 SM-G900F. I bought it abroad and when I used it for the first time in my country I saw, that there is a problem with 4G/WCDMA connection. When I put my sim card to the phone and set all the preferences in mobile connection menu to "Auto" there is no possibility to call or to recieve calls (even if i saw signal strength meter showing some marks). I can only recieve and making call when I set "only 2G" option and manually select my network. But signal is also very poor.
What I have checked yet:
1. Other sim also doesn't work good.
2. After *#06# i saw my IMEI and it is the same under the battery and on the box (doesn't start from "00") so i think that it is not missed (efs folder).
3. Change firmware with KIES and ODIN for the other version - no changes. Also flash some other "modem" files with Odin with no success in better signal.
4. When im on the free air the signal strength is even at maximum level, but immidiately after going to my house - there is no signal. I saw also, that when im in the city i can connect with 2G network (only), but when im on a village there is no signal at all (even 2G...)
Do you have any ideas what can be wrong? Is this hardware failure? Maybe something with antenna? What should I do before going to gsm service center? Maybe i should change kernel and try some of the custom roms?
Thank you for your help.
regards
Mario
Click to expand...
Click to collapse
Maybe there is a region lock? Does the Imei start with 35xxxxxx? Does the S5 support the local 4G bands of your provider? Maybe ask your provider for a new simcard. Correct APN settings applied?
My IMEI starts with "35....". Samsung S5 should be able to connect with WCDMA/4G LTE bands in my country. My sim card was changed about 3 months ago, so it is good - i have checked it in nexus 5 and everything works very well. All APN settings are applied.
How can i check if the phone has region lock? The phone is from UK and now I live in Poland.
..
mecenas666 said:
My IMEI starts with "35....". Samsung S5 should be able to connect with WCDMA/4G LTE bands in my country. My sim card was changed about 3 months ago, so it is good - i have checked it in nexus 5 and everything works very well. All APN settings are applied.
How can i check if the phone has region lock? The phone is from UK and now I live in Poland.
Click to expand...
Click to collapse
You can check on the box. If is has region lock, there will be a warning message printed on the box.
Is there any warning message in the notification bar?
And please check as below:
While the phone is receiving LTE/WCDMA signal, open the Dialer, enter *#0011# --> capture screenshot (1).
Then press Menu > Back entry (not Back key) > Menu > Key Input > Q0 > wait for some seconds... > MAIN MENU > DEBUG SCREEN > NAS INFORMATION > MM INFORMATION --> capture screenshot (2). And then Menu > Back entry MM REJECT CAUSE --> capture screenshot (3).
And post these 3 screenshots.
I was able to connect to wcdma signal (I think) for some minutes. I give you all screenshots.
mecenas666 said:
I was able to connect to wcdma signal (I think) for some minutes. I give you all screenshots.
Click to expand...
Click to collapse
Is your network Polkomtel?
The error cause is: No suitable cells in location area - This cause is sent to the phone if it requests location updating in a location area where the subscriber, by its subscription, is not allowed to operate, but when it should find another allowed location area in the same network.
So may need to give this information to your network operator and ask them to fix.
So it is not the phone problem? It is my network operator error?
My network is Play P4, but this provider has no transmitters for his own in Poland (or has very few). He is able to use all of transmitters in Poland through the roaming (so teoretically i can connect with Polkomtel, T-Mobile and orange transmitters)
T-Mobile No Signal
Hi, este you able to fix your problem, ir so can you Please tell me how?
Like the title says, the H910 connects to any network when the selected/preferred network is not available or has low signal. It doesn't matter if you manually select a network, if the signal goes very low it will connect to some other network.
The result is that you see "bars" but is not connected to the intended network and you may not realize that you are out-of-service. With an AT&T simcard you cannot select a network but even when traveling with a foreign sim (where the network selection is available) is still doing that.
Also, when is connected to the other network, you don't see the network name and if you try to make a call you get the "emergency calls only" message.
Probably this is considered a safety feature. Is there a way to turn this behavior off? I want my phone to be out-of-service if there is no signal. Especially since the signal at my home is very marginal lately and I would like to know whether I have service or not (at the moment I assume that if I see more than 2 bars that I don't have service).
Hello.
Sorry for my English.
I have a problem with galaxy s4 consisting in that:
2G network works without problem, 4G LTE network will work fine, it will switch to 3G network, it displays no network or normal range but can not make outgoing and incoming calls. When trying to manually set the network is the same. 2G and 4G work without problems, but when the 3G is set to reach range, but when you try to ring immediately disconnect. Sometimes the message says that you can not connect to the network. I tried with the same card on the second S4 and it works fine. The rest of the sim card was replaced with a new one. APN configuration has been resumed. It has also been changed to the same system with the XEO-I9505XXUHPK2 modem. I also tried another I9505XXUHOH2 modem but then no network worked. I also called the operator and accepted the application but it was a problem with the phone. I put another card and once it worked but it was very weak to me (interrupted). The owner of the phone was also at the service they exchanged ... charging socket.
Please help because the phone must be ready for tomorrow evening.
Regards
Hi,
A bit late, but open up the dialer and type: *#06#
Does it show an IMEI number? If so, does it start with 0049?
I have been using jio 4g for past 2yrs. The internet connection was good. But for the past 6 months I am facing frequent disconnection of the internet. So I go into flight mode activate and deactivate it again the net connection will be good for a minute and then it drops again to b/S. Frustrated I changed the SIM. But same problem. The bio customer care says it to update firmware! Which was not available and at last they told me to get the mobile serviced. So I swapped the SIM to another mobile and checked. There was no problem in that mobile. Please help me. Whether it is due to SIM or the band problem with mobile. I am using a stock firmware
Ps. Even I resetted, rooted
Set the network type or RAT or network mode to LTE (4G) only, then the phone should stay on the signal even when the signal is low for a second, around -120 rsrp (signal), specifically it should normally follow the parameters sent by the network: qRxLevMin (it is half the rsrp), qQualMin (sometimes, it is the signal quality), sNonIntraSearch, ThreshServingLow (both are ranges around qrxlevmin, one for entry threshservinghigh, one for exit). These parameters should nornally not be followed with LTE (4G) only. But only if the signal drops below the limit for a second. Else, it is a waste of resources, both for you (battery, etc), and the network, though the network can deprioritize cell edge (low signal) users.
To do so, there are extended network modes (for sim 1) in a menu that comes with Android, it is called 4636, Testing, Phone info, Device info, etc. There are apps that open 4636 without root, that offer: mode selections, lte only, anything cellular related that opens 4636.
Hold the phone on its top, not its bottom, for testing, the primary reception antenna should be at the bottom for A 2016, you can check this in *#0011#, it is "ant rsrp diff", it is positive when the primary reception antenna is better, negative when the diversity reception antenna is better, the diversity antenna should in most cases power on when the cellular is in use and start measurement, in contrast to the primary that's just switched on.
The signal can be measured in *#0011#, rssi is the signal strength of the frequency, the signal strength of intra freq (same frequency) neighbors (other cell towers etc) may differ slightly anyway because it's missing a decimal point; rsrp (good maybe at least -120, get it closer to -1) is approximately the signal strength of the cell, it is a few antennas in the long rectangular boxes on a cell tower, note that it is the measurement of the reference signal not the data that is being sent to your phone; rsrq(good maybe at least -15, best -1), sinr (good maybe at least 0, best 40), are signal quality. The "registered plmn" is the currently connected operator (mobile country code and mobile network code), if it changes (different compared to the sim), the signal is low! The "PCI" is the currently connected cell, note that there are only ~500 of these, so to identify the cell you can use both PCI and TAC (region), if the pci changes and the signal strength drops, well, the signal dropped and a reselection is made to an inferior cell, which can then drop data... in this case contact your mobile network operator but they might not make changes if it only affects a few users. You may try to lock band/etc to the good cell that sometimes drops in quality for a second but overall better than the neighbour cells.
Here's a short list of scenarios that can cause problems in connectivity, not all.
1: Low signal, plain old low signal. If the phone can't register VoLTE the bands that can be connected to may be restricted on some MNOs.
2. The antenna is closed and this causes low signal.
3. Low signal of the serving cell, the signal of an inferior neighbour cell matches (above parameters!), the phone changes to another antenna on a cell tower, quality drops and so does the connection. On another cell tower or there are 2 antennas on 1 cell tower, for example 1 facing the azimuth 180 degrees, another 270, the phone being in 215 degrees is unfortunate!
4. The antenna is open and receives interference (and reselections, sometimes good) from neighbour cells.
5. Good signal but it has been echoed a bit too much.
6. Reject causes and others, where the connection has been disconnected for some reason. Probably not in this case! It is viewable in *#9900# > Take cp log > copy to internal sdcard. It is in the /internal storage/log/LitmusLog. Scroll down to the reject cause section, those are error codes.
None of these codes/volte are working: The CSC is not applied correctly! Flash stock rom and open the stock recovery or copy /system/csc/...csc.../system/ to /system/etc/.
I do not recommend anything EFS/PIT, making a backup of efs is OK!
Hi,
I am facing the same problem with a7 2016 with JIO sim.
The mobile is purchased in dubai and when insert jio sim in india, was not able to use volte service.
So I flashed official indian rom. Everything is fine except net speed. Net speed between 1-5am is very fine but in day time speed reduces.
Everytime i have to restart data to use net but after a while same problem occurs.
Tried in both sim trays. I am using single sim in mobile.
Pls provide a solution.
Regards
//aftab