Problems with cellular and network signall cutt off. - Galaxy S 4 Q&A, Help & Troubleshooting

I have my S4 2 weeks. And i have several issues with my S4. I'm from belgium and my operator is Base.
Sometimes it cuts automatically my cellular network offline.
Sometimes my network operator disappears till i reboot the device and after the reboot it remains offline for 10 to 45 minutes sometimes hours. so i can't get any calls or messages.
I get also allot of log sounds kinda notifications but none nofifications.
It also has some problems with my wifi on 2,4Ghz and 5,0Ghz to. Sometimes it cuts automatically off and needs to reconnect.
It's not my router it's the Asus rt-ac66u and brand new.
My smartphone info :
Model Nr. : GT-I9505
Android Version : 4.3
Baseband Version : I9505XXUEMKF
Kernel Version : 3.4.0-2082040
[email protected] #1
Wed Nov 27 22:04:32 KST 2013
Build Nr : JSS15J.I9505_4.3_0016
SE For Android Status:
Enforcing
SEPF_GT-I9505_4.3_0016
Secure Boot Status : Type Samsung
Help me out? I don't know what to do. I heard from others that some people had a older baseband version and that they had not any problems with their S4.

Related

[Q] 4G hangs

My Note 3, 4g data hangs after a few hours.
Even if I disable / enable data there's still no data.
The only way to fix it is through a soft reset.
I haven't rooted my phone.
anyone else getting this problem?
Glen L said:
My Note 3, 4g data hangs after a few hours.
Even if I disable / enable data there's still no data.
The only way to fix it is through a soft reset.
I haven't rooted my phone.
anyone else getting this problem?
Click to expand...
Click to collapse
You lose the status in the signal bar? - While I currently don't have 4G here (yet, January thankfully) my data connection vanishes after a few hours and takes a switch off/on for it to re-enable again. Not sure why, assumed it was a network issue (not the best network here IMO)
radicalisto said:
You lose the status in the signal bar? - While I currently don't have 4G here (yet, January thankfully) my data connection vanishes after a few hours and takes a switch off/on for it to re-enable again. Not sure why, assumed it was a network issue (not the best network here IMO)
Click to expand...
Click to collapse
Well it switches to 3G since it shows H (HSDPA) but its still suppose to have internet. But it wont load any websites. After a soft reboot I would have internet again. So far happened to me 3x already
Glen L said:
My Note 3, 4g data hangs after a few hours.
Even if I disable / enable data there's still no data.
The only way to fix it is through a soft reset.
I haven't rooted my phone.
anyone else getting this problem?
Click to expand...
Click to collapse
What firmware do you have?
xclub_101 said:
What firmware do you have?
Click to expand...
Click to collapse
Kernel:
3.4.0-1628120
[email protected] #1
Tue Oct 1 17:32:29 KST 2013
Build number:
JSS15J.N9005XXUBMJ1
Baseband version:
N9005XXUBMJ1
there's no update available yet
Glen L said:
Kernel:
3.4.0-1628120
[email protected] #1
Tue Oct 1 17:32:29 KST 2013
Build number:
JSS15J.N9005XXUBMJ1
Baseband version:
N9005XXUBMJ1
there's no update available yet
Click to expand...
Click to collapse
But on the bright side you can still root and keep Knox 0x0
After that you can also probably get a MJ7 version with a CSC close to what you have and keep root and Knox 0x0 (but in case you decide to do that you have a lot of reading to do around this forums).
The bottom line is that it might be fixed by MJ7.

[Q] New N900 has bad signal and "your device has been modified" update error

[Q] New N900 has bad signal and "your device has been modified" update error
Hello forum,
I am in the UK using a Virgin sim and my girlfriend bought this phone new in china and flew it over to me. At the moment the signal is really bad wherever I go (the same SIM card in my old galaxy nexus had great signal in all these places) so I was wondering if there was any way to make the signal better?
Also I tried to do an update through the settings menu hoping this would sort out the signal problem and it is giving me the "your device has been modified. no updates available for this device." error even though the phone is new.
the information about the device is as follows:
when I type *#1234# I get:
AP: N900ZSUBMI5
CP:N900XXUBMI2
CSC:N900OZSBMI2
In my "about device" within settings, the following is given:
Model number: SM-N900
Android version: 4.3
Baseband version: N900XXUBMI2
Kernel version: 3.4.39-1625296
[email protected]#1
Wed Sep 11 19:49:31 KST 2013
Build number: JSS15J.N900ZSUBMI5
SELinux status: Enforcing
If I reboot to recover it opens:
CWM-based Recovery v6.0.4.5
Compiled by Xiaolu(20131121)
When I try to check knox I cant see it (I go into odin mode and the top left just says the following):
CURRENT BINARY: Custom
SYSTEM STATUS: Custom
(I now understand the N900 doesn't have knox)
Thanks for looking, any feedback at all would be much appreciated :good:
Saml91 said:
Hello forum,
I am in the UK using a Virgin sim and my girlfriend bought this phone new in china and flew it over to me. At the moment the signal is really bad wherever I go (the same SIM card in my old galaxy nexus had great signal in all these places) so I was wondering if there was any way to make the signal better?
Also I tried to do an update through the settings menu hoping this would sort out the signal problem and it is giving me the "your device has been modified. no updates available for this device." error even though the phone is new.
the information about the device is as follows:
when I type *#1234# I get:
AP: N900ZSUBMI5
CP:N900XXUBMI2
CSC:N900OZSBMI2
In my "about device" within settings, the following is given:
Model number: SM-N900
Android version: 4.3
Baseband version: N900XXUBMI2
Kernel version: 3.4.39-1625296
[email protected]#1
Wed Sep 11 19:49:31 KST 2013
Build number: JSS15J.N900ZSUBMI5
SELinux status: Enforcing
If I reboot to recover it opens:
CWM-based Recovery v6.0.4.5
Compiled by Xiaolu(20131121)
When I try to check knox I cant see it (I go into odin mode and the top left just says the following):
CURRENT BINARY: Custom
SYSTEM STATUS: Custom
(I now understand the N900 doesn't have knox)
Thanks for looking, any feedback at all would be much appreciated :good:
Click to expand...
Click to collapse
Well it looks great. At least I can be sure that your phone shouldn't be a fake. It is of Hong Kong or Taiwan origin, Exynos, running 4.3 on N900ZSUBMI5.
You have CWM Recovery, Xiaolu's port of it. Hence that device was probably rooted prior to getting it handed over to your girlfriend. KNOX is only present on the MJ and onward firmwares, and you happen to be on an MI firmware so you don't have it activated yet.
Check the section for Network/Bearer and Wireless Connectivity on this link: http://www.samsung.com/levant/consumer/mobile-phones/mobile-phones/galaxy-note/SM-N9000ZKEXSG-spec
Match it up with your country's network specifications. There's a reason why these phones don't get sold worldwide, as they aren't all compatible with every region. Also remember to set correct APN values for your country.
nicholaschum said:
Well it looks great. At least I can be sure that your phone shouldn't be a fake. It is of Hong Kong or Taiwan origin, Exynos, running 4.3 on N900ZSUBMI5.
You have CWM Recovery, Xiaolu's port of it. Hence that device was probably rooted prior to getting it handed over to your girlfriend. KNOX is only present on the MJ and onward firmwares, and you happen to be on an MI firmware so you don't have it activated yet.
Check the section for Network/Bearer and Wireless Connectivity on this link:
Match it up with your country's network specifications. There's a reason why these phones don't get sold worldwide, as they aren't all compatible with every region. Also remember to set correct APN values for your country.
Click to expand...
Click to collapse
okay thanks for your reply, I believe the frequencies virgin use are 1800MHz and 2100MHz which can both be used with this phone. The APN settings were downloaded automatically when the phone was first booted and I also manually checked them and they are correct.
Saml91 said:
okay thanks for your reply, I believe the frequencies virgin use are 1800MHz and 2100MHz which can both be used with this phone. The APN settings were downloaded automatically when the phone was first booted and I also manually checked them and they are correct.
Click to expand...
Click to collapse
What is your network switch options in Settings?
Do you have it to HSPA/GSM (auto connect) set? [Sorry if it's not exactly the same, I don't have the N900 model]
My friend pointed this out to me just before I saw your message, the options available are only wcdma/gsm hspa isn't an option. Im guessing from my limited knowledge that this is the problem, what is it I would need to do to fix this? thanks again.
Saml91 said:
My friend pointed this out to me just before I saw your message, the options available are only wcdma/gsm hspa isn't an option. Im guessing from my limited knowledge that this is the problem, what is it I would need to do to fix this? thanks again.
Click to expand...
Click to collapse
Actually, I asked my friend who has the N900, he's reporting the same as you. So no problem in that.
There must be something else that can be isolated to find what's going on. You can try to upgrade the phone to the latest modem by flashing the latest 4.4.2 ROM.
Okay, what would be the best way to flash the latest ROM? Would this be a custom ROM or is there a way to get the official one? Thanks again.
Edit: I have now tried putting Dr Ketans rom on it, telling it to use the ROMs modem, and that still didnt fix the problem. I have also tried flashing some other modems from the GSM modems collection thread but the problems persist. The symptoms are as follows:
Frequently looses signal
only ever shows the E or G symbol for mobile internet connection (whereas on my other phone with the same sim it instantly gets full signal and shows H+ or 3G)
the phone has also never been able to lock onto a GPS location it only ever shows searching for GPS in the notifications bar.

[Q] Samsung XCOVER2 GT-S7710L can not connect 3G in Indonesia

Dear All,
I bought Samsung XCOVER2 GT-S7710L in US , and take it to Indonesia , but for mobile data network it can NOT pick up any 3G signal ( UTMS nor HSDPA ) , it can only pick up EDGE (2G), I have tried 2 different SIM card from different operator ( www,xl.co.id and telkomsel.com ).
When I force the phone to work on "WCDMA only " it seems can NOT sniff the network even though I am very sure the area is covered by 3G services as I can pick up the 3G signal using my other android phone.
Here is the detail of the phone :
- Model number : GT-S7710L
- Android Version : 4.1.2
- Baseband Version : S7710LUBAMC1
- Kernel Version :
2.0.31-964172
[email protected] #2
SMP PREEMPT Tue Mar 5 18:22:53
KST 2013
-Builld number : 54K.JSOS7710LUBAMC1
My apology if this is a "stupid" question but I still can't find out what the problem is , any lead or solution is appreciated , thanks
timanuel said:
Dear All,
I bought Samsung XCOVER2 GT-S7710L in US , and take it to Indonesia , but for mobile data network it can NOT pick up any 3G signal ( UTMS nor HSDPA ) , it can only pick up EDGE (2G), I have tried 2 different SIM card from different operator ( www,xl.co.id and telkomsel.com ).
When I force the phone to work on "WCDMA only " it seems can NOT sniff the network even though I am very sure the area is covered by 3G services as I can pick up the 3G signal using my other android phone.
Here is the detail of the phone :
- Model number : GT-S7710L
- Android Version : 4.1.2
- Baseband Version : S7710LUBAMC1
- Kernel Version :
2.0.31-964172
[email protected] #2
SMP PREEMPT Tue Mar 5 18:22:53
KST 2013
-Builld number : 54K.JSOS7710LUBAMC1
My apology if this is a "stupid" question but I still can't find out what the problem is , any lead or solution is appreciated , thanks
Click to expand...
Click to collapse
Two things are possible,
1- Your second SIM tray may not support WCDMA.
2- The bands in your radio is not supporting the WCDMA radio of Indonesia.
Bonus: Your firmware may have been screwed.
f_u_006 said:
Two things are possible,
1- Your second SIM tray may not support WCDMA.
2- The bands in your radio is not supporting the WCDMA radio of Indonesia.
Bonus: Your firmware may have been screwed.
Click to expand...
Click to collapse
Hi f_u_006,
fyi this phone has only 1 SIM tray , also please advise how to check the "Radio Band" that mobile phone able to operate at ? thank you.

[Q] i9505 only getting G/E in mobile data indicator

hi guys im a new android user. i bought my i9505 galaxy s4 3 weeks ago and everything is working perfectly except the mobile data. i can only connect to E/G signals with it (which doesnt really do anything because i cant even check emails). its on LTE/3G/WCDMA/GSM(automatically) setting and the APN is the correct settings with the carrier in my country(philippines). i tried my sim on a different i9505 phone and it was able to connect to 4g so i guess the carrier/sim being the problem is ruled out. i have restored to factory settings/rebooted multiple times and am still unsuccessful. the phone's IMEI is not blacklisted or banned and it is intact(dont really know what that means but it shows a long series of numbers and im not really sure its safe to post it here). My carrier also supports the frequencies listed on what the phone has. i have not installed any custom firmwares and have not re installed any official releases.
i would really appreciate it if someone can help me fix this problem. could it be a software problem or a hardware problem(praying it isn't)?
my phone specs are
GT-i9505 samsung galaxy s4
android version:4.3
baseband:i9505XXUEMJ7
kernel version: 3.4.0-1765174 [email protected]#1 tue oct15 16:14:54 KST
Build number: JSS15J.I19505XXUEMJ7
SELinux: Enforcing SEPF_GT-I9505_4.3_0010
if you need me to put any more info just tell me
Go Settings > More networks > Mobile networks > Network mode > select WCDMA

Samsung Galaxy A8 SM-A800l Network Problem

Hello,
I have Samsung A8 2016 Duos, Model Number is: SM-A800l. Android Version 6.0.1, Baseband version: A800lXXU1BPG7, Build Number: MMB29K.A800lXXS2BQC4.
It was purchased from Dubai box package and i am using it in other country. It was working fine since start but before some months it has stop showing network. It is detecting sim cards but not showing network. I treid to change network mode, 2g, 3g etc but still same issue.. It is showing block circle icon on top. When i press 112 and call it is just showing emergancy call and keep dialing. Please tell me what i have to check and what i have to do to solve this issue..

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