Nougat modem issue "No services, emergency Calls Only" - Samsung Galaxy S7 Questions and Answers

I m using my G930FD (Dual SIM) phone from may 2016. On marshmallow i didn t have any problem. After I switched to nougat, problems occurred with reception on 4G.
Where I live, the phone uses the Band 20 (800Mhz) and working both Sim cards without any issue, everything OK.
At my workplace LTE uses Band 3 (1800Mhz) appear the problems. After a random period of time, SIM1 unusable switch off from network and get "No service, emergency call only". Airplane switch ON/OFF, and SIM 1 functional again.
You can see the actually used channel dialing *#0011#
I think the problem is related to nougat modem, and only on BAND 3. Tried 4-5 different nougat modems, but no lucky.
TEMPORARY SOLUTION: flashed back marshmallow 6.0.1 modem G930FXXU1BPL6 and now seems ok.
Anyone else have this problem?

lge73 said:
I m using my G930FD (Dual SIM) phone from may 2016. On marshmallow i didn t have any problem. After I switched to nougat, problems occurred with reception on 4G.
Where I live, the phone uses the Band 20 (800Mhz) and working both Sim cards without any issue, everything OK.
At my workplace LTE uses Band 3 (1800Mhz) appear the problems. After a random period of time, SIM1 unusable switch off from network and get "No service, emergency call only". Airplane switch ON/OFF, and SIM 1 functional again.
You can see the actually used channel dialing *#0011#
I think the problem is related to nougat modem, and only on BAND 3. Tried 4-5 different nougat modems, but no lucky.
TEMPORARY SOLUTION: flashed back marshmallow 6.0.1 modem G930FXXU1BPL6 and now seems ok.
Anyone else have this problem?
Click to expand...
Click to collapse
I'm not using the dual SIM version but the normal one (G930F). I also have some issues with 4G data dropping to EDGE/GPRS after a call and occasional "Emergency calls only" message. This would either require a restart or a switch in Mobile data type (LTE/3G/2G) and revert back for it to be fixed. I've also tried flashing different modems like you've done. I initally had the NEE region in Marshmallow (which I remember had the same issue, but less frequent) and then I updated to Nougat by flashing the BTU firmware.
I will try the modem that you have mentioned, hope it all gets fixed after that Thanks :good:

Related

[Q] No 3G/4G signal on H60-L11

This phone was bought on jd.com, on China. I received it last week.
So, for some reason, only 2G (EDGE) works, even with auto 2G/3G/4G activated. I've already tried changing APNs, factory resetting, calling my provider, and nothing. Only 2G. Also, for some reason, everytime I restart the phone the mobile data resets and goes to 2G only. There's also always a 2G symbol over my signal indicator, never changing to anything or even disappearing, on wlan or when with no connection.
It is updated to EMUI 3.0.
Is there something about 3G or 4G lock about this phone?
Thank you.
mhnjqm said:
This phone was bought on jd.com, on China. I received it last week.
So, for some reason, only 2G (EDGE) works, even with auto 2G/3G/4G activated. I've already tried changing APNs, factory resetting, calling my provider, and nothing. Only 2G. Also, for some reason, everytime I restart the phone the mobile data resets and goes to 2G only. There's also always a 2G symbol over my signal indicator, never changing to anything or even disappearing, on wlan or when with no connection.
It is updated to EMUI 3.0.
Is there something about 3G or 4G lock about this phone?
Thank you.
Click to expand...
Click to collapse
In which country are you trying to use it? If you are in europe you should have buy the wcdma versions which are h60-l02 and h60-l12.
nothingman1976 said:
In which country are you trying to use it? If you are in europe you should have buy the wcdma versions which are h60-l02 and h60-l12.
Click to expand...
Click to collapse
Brazil.
I found this table (link below). Mine would be Telefónica.
goo.gl/QexuGm
I have the same isue with honor 6 h60-l01 . The phone specification say LTE band 38(2600), 39(1900), 40(2300) - H60-L01 which is the band from rcs-rds Romania. What is the problem.

Can't turn on radio.

Hello,
I have no signal, I can't turn on radio in the hidden settings (*#*#4636#*#*) and I can't change preffered network to 2g nor 3g.
I have flashed different radios, flashed several factory images (4.4,5.1.1,5.0) but I have the same problem. One thing though, when I'm on 4.4 it says the radio is on in the hidden settings (still no signal) but I can
t' turn it off. Is this a software or hardware problem? What can I do/what are replacement parts I could buy?
Thanks.
Please anyone? This is very urgent.
When I'm on 5.0 my phone immediatly recognizes my sim card and in the initial setup it can verify my network (don't have a signal afterwards). On 5.1.1 I have to take my sim out and put it back in before it recognizes it and it can't verify in the initial setup (also no signal afterwards).
Same problem here. Tried all radios, all stock versions since 4.4 up to 5.1.1.
I'm beginning to suspect physical damage.
What carrier?
Sent from my Nexus 5 using Tapatalk
I'm in Brazil. Reading other threads, I noticed something: my phone is a D820, versus the international D821. I read that the modems are binary-equal, what determines the supported LTE bands is a configuration in the Qualcomm chipset. In my case, only D821 will support band 7 (which is the local LTE frequency). See: http://www.phonearena.com/news/Differences-between-the-two-Nexus-5-models-D820-and-D821_id48985
You wouldn't by any chance be in an area with the international LTE bands, would you?

Help! Doogee X5 Pro modem cycles whenever accessed in LTE or 3G mode

I would love someone to help with this strange problem, before I throw this phone in the bin!
First the specs.
Doogee x5Pro, Android 5.1,
Baseband DOOGEE-X5pro.2015/10/08
Kernel version [email protected].2015.10.08
Build number DOOGEE X5pro-Android5.1-R08-2015.10.26
The phone works fine when I set Cellular Settings / Preferred network type to 2G. Of course it only works as a 2G phone in this mode.
However, if I set the Preferred network type to either 3G or 4G (recommended) then as soon as I try to make a call or send an SMS, the modem radio turns off and the call is immediately dropped or Messaging says the SMS service is unavailable. Occasionally the called phone will ring, but the call drops immediately. Sometimes the SMS does get through, but at my end it appears that the modem radio turns off and on again as soon as the Dialler or Messaging tries to use it. If someone tries to call me, the phone rings and caller-ID is displayed, but as soon as I answer, the modem radio cycles off and on again, and the call gets dropped.
If I am in an 4G LTE coverage area, then 4G data works fine (browsing was fast, Speedtest was showing 85+Mbps) but I still cannot make or receive calls, or send SMS's - as soon as I try, the modem radio cycles off and then on. If I am not in an LTE coverage area (but am in a 3G WCDMA coverage area), then the phone just constantly cycles showing 4G for an instant then 3G, then radio off, then radio on but no service, then 4G etc... - this cycle is very regular and takes about 53 seconds end-to-end. If wi-fi is on, this cycle only starts if the modem is accessed (e.g. by trying to make a call), or by turning wifi off and cellular data on. And of course I can't make or receive calls or send SMS's during this cycle, and even when the signal shows 3G I can't get any data connectivity. While it's doing this, if I go to Settings / SIM cards, the 'On/Off' slider moves to 'Off' when the radio cycles off, and then moves back to 'On' again.
In summary; in 3G or 4G preferred network mode and not in LTE coverage, whenever anything (calls, SMS or data) tries to use the modem it cycles off and on again. When in LTE coverage, data works but calls and SMS cause the modem to cycle. As I mentioned, 2G is fine.
I think I've tried most of the obvious things, and some not-so-obvious ones. These are the things I've tried so far.
Obvious things like reboot, battery out, reset to factory settings, wipe cache, clear application data. No change.
I swapped the SIM from Slot 1 (LTE/WCDMA) to Slot 2 (GSM) - the behaviour was exactly the same (this surprised me as it seemed to be LTE-related).
I put my SIM in a carrier's (Vodafone NZ) Samsung 4G phone and it worked fine, also it was fine in a Chinese-brand 3G phone. Then I put another Vodafone NZ 4G SIM in my phone and it had exactly the same problems, so I think it's the phone rather than the SIM or the carrier.
Because data works fine when in LTE coverage, and the phone does ring if called (but cycles the modem immediately when I answer the call), it seems the hardware is possibly working OK. So I assumed software or settings might be the cause.
I created new APN's using carrier-supplied settings. No change. I flashed various Doogee stock ROM versions (don't think there are any custom ones for this phone) and they all display the same problem, rooted or otherwise. I've used the engineering menus (*#*#3646633#*#* and *#*#4636#*#*) to change bands, network preferences and various other settings with no effect. 2G (GSM only) is the only one that works. I installed the Xposed Framework and Gravitybox module and had a play with some of the settings in there but again, no effect.
I don't know what else to try and I can't return the phone as it costs too much to send it back to China from New Zealand.
So any help anyone can give me would be greatly appreciated, otherwise I'm stuck with a not particularly useful 2G wi-fi phone.
Thanks in advance.
Just a bit of an update. I've discovered that 4G LTE works fine when in range and 2G works fine all of the time; but 3G just doesn't work at all and I have no idea why - I've searched the threads and tried all of the suggestions I could find that can be applied to this phone. As soon as anything tries to access the 3G radio (calls, SMS or data), the modem just 'reboots' (powers off and on again).
All of the other symptoms I've described are related to this. When out of (or in marginal) 4G coverage, it starts in 4G, falls back to 3G and that's when the modem 'reboots'. When in 4G range, data works fine but as soon as I make or recieve a call it needs to drop from 4G to 3G (I don't think we have VoLTE here) and that's when the modem 'reboots'.
So any ideas anyone? Is this likely to be a hardware problem with the phone?
Thanks.
(BTW the baseband appears to be MOLY.LR9.W1444.MD.LWTG.MP.V8.P33,2015/10/26 16:01)
Good to see another Kiwi with a Doogee X5 PRO. I have not seen these issues in Auckland but a few weeks ago I upgraded to R17 using this ROM :
www.needrom.com/download/doogee-x5-pro/
I noticed 3G and 4G are much improved and I could get both in either slot 1 or 2 (I use dual Voda SIMS).
Last week I went Android6 (32-bit) using this ROM:
www.needrom.com/download/android-6-0/
Using this ROM I can only get 3G and 4G in slot 1 and 2 is "locked" to 2G .. so I guess its software based. If your comfortable with flashing your device then do the R17 upgrade or see if its available OTA
nzjacob said:
Good to see another Kiwi with a Doogee X5 PRO. I have not seen these issues in Auckland but a few weeks ago I upgraded to R17 using this ROM :
www.needrom.com/download/doogee-x5-pro/
I noticed 3G and 4G are much improved and I could get both in either slot 1 or 2 (I use dual Voda SIMS).
Last week I went Android6 (32-bit) using this ROM:
www.needrom.com/download/android-6-0/
Using this ROM I can only get 3G and 4G in slot 1 and 2 is "locked" to 2G .. so I guess its software based. If your comfortable with flashing your device then do the R17 upgrade or see if its available OTA
Click to expand...
Click to collapse
Hi, thanks for the tip - I've already tried the various ROMs on NEEDROM and currently have Android 6 installed, unfortunately the modem still exhibits exactly the same behaviour. But good to hear that yours works OK in NZ because that reinforces by belief that it must be a hardware issue (rather than a network one). Unfortunately this means the phone's only really any use as a WiFi 'phablet' or a 2G phone. So I've given up on it and bought a cheapo Voda Smart Prime instead, which does the basics OK - shame really as I've had Doogee's before and they've been really good. Oh well
I have just gotten an X5 Max Pro. I've noticed that I only have 3G service from my carrier in my area and for that reason I cannot receive calls if I set the favourite network type to 4G(recommended). I have to set the preferred network type to 3G in order to be able to receive calls, otherwise you will receive the "the phone you are calling is off or out of signal" notification, at the same time that I receive a text message from my carrier notifying the lost call.
To me it seems that the phone is not capable of downgrading the signal automatically to 3G when there is no 4G signal. However, I can make calls and receive text messages with no problems at all.
When I have 4G coverage, everything works just fine with the preferred network type set to 4G(recommended).
Is this a software or a hardware problem? I really don't know if it is related to the problems already described here with the x5 pro, but I have decided to post my experience. Maybe it will give some more hints about what is wrong with many Doogee x5 devices.
Thanks
Possible explanation & solution
Hi,
I may have an explanation and solution.
I have Doogee X5 Max Pro and I ran into similar problems. Doogee international did not respond to me, but their agent in Israel did.
Apparently in each cellular provider uses two frequencies: 2000 for outdoors, and 850 *or* 900 for indoors. High end phones support both 850 and 900 (along with the 2000). This model only supports 900 (and 2000), which means that you'd if your provider uses 850, you'd have a good reception outdoors, but a lousy one / none indoors (along with a higher battery consumption etc.).
The solution was to switch to a different provider that uses 900 frequency, and that indeed solved the problem (in Israel I switched to Partner - used to be a part of the Orange network) .
I hope that helps.
Yossi
yossiy said:
Hi,
I may have an explanation and solution.
I have Doogee X5 Max Pro and I ran into similar problems. Doogee international did not respond to me, but their agent in Israel did.
Apparently in each cellular provider uses two frequencies: 2000 for outdoors, and 850 *or* 900 for indoors. High end phones support both 850 and 900 (along with the 2000). This model only supports 900 (and 2000), which means that you'd if your provider uses 850, you'd have a good reception outdoors, but a lousy one / none indoors (along with a higher battery consumption etc.).
The solution was to switch to a different provider that uses 900 frequency, and that indeed solved the problem (in Israel I switched to Partner - used to be a part of the Orange network) .
I hope that helps.
Yossi
Click to expand...
Click to collapse
I think Yossi hit the nail on the head there! Ouch!
In Oz we have Telstra on the 850MHz band and Optus etc on the 900MHz 3G band..
So Optus is OK but Telstra nay.
The trap is they may show heaps of signal strength but it is probably from the wrong band!
You can do everything except make or take a phone call!
A lot of problems with phones has reared it's ugly head since the 2G network shut down.
Unless you have plenty of 4G signal (which the various providers share the same bands), you would be pretty stuffed..
I wonder if firmware(Rom) changes could solve the problem ?
(I also have the Doogee x5 max pro..)

My data turns off while in a call

Using stock m9. Data 4g or other turns itself off when I start dialing and reconnects after I complete my call. Very frustrating when I need to search something while talking. Is there a setting I'm missing? Has anyone else noticed this?
yves.alexis said:
Using stock m9. Data 4g or other turns itself off when I start dialing and reconnects after I complete my call. Very frustrating when I need to search something while talking. Is there a setting I'm missing? Has anyone else noticed this?
Click to expand...
Click to collapse
Which operator? I hava the same problem using Vodafone
yves.alexis said:
Using stock m9. Data 4g or other turns itself off when I start dialing and reconnects after I complete my call. Very frustrating when I need to search something while talking. Is there a setting I'm missing? Has anyone else noticed this?
Click to expand...
Click to collapse
Probably, you are missing VoLTE. Without this technology when phone using 4g and receiving call, it jumps to wcdma (3G) to get call, but drops mobile Internet in this moment.
To get everything working need:
- Mobile operator, who supports VoLTE
- Phone. Mate 9 supports VoLTE on paper, but not in all roms and not in all regions. For example, owner is living in USA, but has Mate 9 with chinese Rom -> no VoLTE.
You will have to enable VoLTE in order to get rid of the trouble.
I have the same issue also. I own the dual SIM variant and use one card for calling and the other one for mobile internet. Whenever I start a call the mobile data connection is stopping. I tried to enable VoLTE with no success.
5[Strogino] said:
Probably, you are missing VoLTE. Without this technology when phone using 4g and receiving call, it jumps to wcdma (3G) to get call, but drops mobile Internet in this moment.
To get everything working need:
- Mobile operator, who supports VoLTE
- Phone. Mate 9 supports VoLTE on paper, but not in all roms and not in all regions. For example, owner is living in USA, but has Mate 9 with chinese Rom -> no VoLTE.
Click to expand...
Click to collapse
In the latest C432 roms Huawei has removed the possibility to enable VOLTE for Vodafone Italy.
This possibility was present only in the first 2 update.
derchrome said:
I have the same issue also. I own the dual SIM variant and use one card for calling and the other one for mobile internet. Whenever I start a call the mobile data connection is stopping. I tried to enable VoLTE with no success.
Click to expand...
Click to collapse
This is other case. If you are using one card for calling only, and second card for mobile internet only - you can't get call and mobile data together, cause Mate 9/Mate 9 Pro are DSDS phones (dual SIM dual standby)
To get what you want need have DSDA phone (dual SIM dual active). They are with two independent radio modules. Honor 8 for example.
Dsds phone has only one radio module but uses interchange method of work. On physical level it jumps from first sim to second then gets back to first. If you are in call with first sim, phone does not go to second -> no internet.

Help me - Infocus m808 is working only in 2G

Hi
Maybe you can help me.
I used my M808 2 years. In 2 days i can't call and sms and don't have internet when i have 3G or 4G. When i force 2G i can call and sms. In 3G i can see range but i cant call to anybody.
Do you have idea how i can fix it?
I done hard reset and nothing, I try my SIM card in other smartphone and there i had 4G ok.
Will Change rom help?
Lobotom_ said:
Hi
Maybe you can help me.
I used my M808 2 years. In 2 days i can't call and sms and don't have internet when i have 3G or 4G. When i force 2G i can call and sms. In 3G i can see range but i cant call to anybody.
Do you have idea how i can fix it?
I done hard reset and nothing, I try my SIM card in other smartphone and there i had 4G ok.
Will Change rom help?
Click to expand...
Click to collapse
This could be caused by a few things.
1. Hardware fault.
2. Your carrier (SIM Provider) switched to a none supported band or bands. The M808 does not support LTE band 20 (800mhz) which is common in Europe
Supported Network Bands:
(2G) GSM 850/900/1800/1900MHz
(3G) WCDMA 850/900/1900/2100MHz
(4G) FDD-LTE B1/B3/B7/B8/B28
3. APN settings although this would not affect voice calls
4. Your carrier Decided to block your phone by IMEI from using anything other than 2G and yes they do sometimes do this O2 did it to me some years ago now with absolutely no warning or reason given so I will never ever use them again the arrogant s****
5. Duplicate IMEI someone is using a phone with the same IMEI as yours on the same network. This can cause all kinds of strange stuff to happen. Again happened to me when I restored the incorrect backup. Both mine and my sons phone ended up with the same IMEI . It took ages to work out what was going on with that one
I would suggest you first try another sim card from another provider that use's the supported bands for 4G (3UK) if in the UK it used to work fine on my Old M808.
I done some tests.
I put my sim card to other phone - everything is ok.
I put other provider sim card to my phone - only 2G is working properly.
I done flashing - no improvement.
Im afraid hardware fault.
Any more sugestions?
Lobotom_ said:
I done some tests.
I put my sim card to other phone - everything is ok.
I put other provider sim card to my phone - only 2G is working properly.
I done flashing - no improvement.
Im afraid hardware fault.
Any more sugestions?
Click to expand...
Click to collapse
Full Firmware Upgrade using SPFlashTool If that dont fix it then it's time for a new Phone see the original Infocus V5 M808 Thread for ROM s and tools.
https://forum.xda-developers.com/general/device-reviews-and-information/infocus-v5-mt6753-5-2-fhd-2gb-ram-16gb-t3341297
MM ROM's and Recovery's https://forum.xda-developers.com/showpost.php?p=67345310&postcount=182

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