Database Users

[Q] No signal problem

Hi all! I'm experiencing a serious problem with my I5800. Suddenly I'm unable to connect to my carrier network, no signal at all. I was using Kyrillios till now, but it is still not working after i flashed a stock JPF. I tried everything, different versions of stock and Kyrillios, clearing data and cache, using another SIM from other carriers. No matter what I do my phone is unable to connect to the phone network. Searching in the forums i found others facing this problem after using Kyrillios for some time... but no solution worked. So basically now I have a "dead" phone... Any help? Someone with the same problem?

Try to choose a different network operator. Go to Settings -> Wireless and network -> Mobile networks -> Choose network operator. Try all options and see if any of em work.

I can see all my country networks, but when i choose mine the popup says registered and after some mins a red sign appear in the bar "No service (my carrier name)". I tried other carriers but I can't use others with my sim. Also i tried other sims as i said of other carriers and they all ahve the same problem. In other phone they all works normal.
I'm wondering if the Kyrillios ROM can damage the antenna or something like that. It could be a serious issue caused by it.

Nah I don't think it does. Not physically at least.
Try flashing an eclair rom, preferably the one which you had originally. Maybe that'll help. Or some ROM, just so you can be sure it works at least with some ROM. Then we can start thinking of new solutions

I tried many eclair and froyo now. It don't connect to the network. No ROM works.

matrixino said:
I tried many eclair and froyo now. It don't connect to the network. No ROM works.
Click to expand...
Click to collapse
it might be some imei related problem?? :S

matrixino said:
I tried many eclair and froyo now. It don't connect to the network. No ROM works.
Click to expand...
Click to collapse
I suggest flash the stock rom which you originally had and take it to samsung service..

Giosiken said:
it might be some imei related problem?? :S
Click to expand...
Click to collapse
thats can be it. i changed it to all 0 and after some mins it connected. long story short: i won a lawsuit against them for privacy violation (thet had to pay circa 70k euro) so i suppose they blocked my phone bought from them as revenge. (vodafone)
Sent from my Galaxy S using tapatalk.

S4 I9505 no 3G but only G

hello all
bought the second hand phone with this network issue.
after trying some roms, wifi fixes, network fixes, root settings, finally stopped on pyrana rom but during all those, couldnt find out what could be the reason for the mobile network.
and also realized that the imei number is not same as behind, could that be the reason? any chance to change that? or any tips to get 3G?
using tele2 in Holland, used my sim in another phone, 3G working
also used another sim from Tmobile in this phone, again only G no 3G.
thanks from now
link for the screenshot (coudlnt put the full link bcoz of being new here)
i.imgur.com/TIeKTbF.jpg

difficult question?

Vedaturka said:
difficult question?
Click to expand...
Click to collapse
Goto Settings, tap the Connections tab, goto More Networks, then tap on Mobile Networks. What does your Network Mode say?
Are you on GSM only or are you on either LTE/WCDMA/GSN (Auto connect) or WCDMA/GSM (Auto connect)?
If you're on WCDMA, it could possibly be an access point problem, or maybe a modem issue?

thanks for trying to help man. im on lte/wcdma/gsm auto...
just flashed to omega v28 4.4.2 but again no luck... still only G

Vedaturka said:
thanks for trying to help man. im on lte/wcdma/gsm auto...
just flashed to omega v28 4.4.2 but again no luck... still only G
Click to expand...
Click to collapse
Have you checked your APN? Is it set up correctly?
Where it says More Networks, tap on Access Point Names and check yours is set up correctly.
You should be able to find the APN details online through google

yep.. did that auto, manual, copying from another phone, didnt work. and the imei is still diffrent than the one behind the phone. still thinking that could cause the problem. :/

change device for solving problem

erwinjmalmsteen said:
change device for solving problem
Click to expand...
Click to collapse
i wish i could do that just as easy as you say

Looking on Google, it seems some people have had a bit of luck with this issue after doing a Manual Roam.
That involves going into Settings, More Networks, Mobile Networks then tap Network Operators. Wait for it to scan and then choose another network to try and connect too. It'll fail. Then go back and do it again, but this time select your network operator and it'll connect.
It's worth a try?

Brownie2k said:
Looking on Google, it seems some people have had a bit of luck with this issue after doing a Manual Roam.
That involves going into Settings, More Networks, Mobile Networks then tap Network Operators. Wait for it to scan and then choose another network to try and connect too. It'll fail. Then go back and do it again, but this time select your network operator and it'll connect.
It's worth a try?
Click to expand...
Click to collapse
i tried, found 3 providers network, connected and then returned to mine, didnt work. im still thinking that the imei has something to do with it.
thanks for trying again man. appreciate it

Vedaturka said:
i tried, found 3 providers network, connected and then returned to mine, didnt work. im still thinking that the imei has something to do with it.
thanks for trying again man. appreciate it
Click to expand...
Click to collapse
Did you say that the IMEI number shown in Android is different than the one printed behind the battery?
If so, that says to me that the phone was once reported stolen at one point, blacklisted and someone has changed the IMEI number to get it off the blacklist and back on the network.

Brownie2k said:
Did you say that the IMEI number shown in Android is different than the one printed behind the battery?
If so, that says to me that the phone was once reported stolen at one point, blacklisted and someone has changed the IMEI number to get it off the blacklist and back on the network.
Click to expand...
Click to collapse
wow never thought that.. so how am i turning it back to the original imei? any idea? i searched for that too, but no luck.. im stucked with this.. paying for 3g but getting only g and its taking ages even to connect to google.com...

Vedaturka said:
wow never thought that.. so how am i turning it back to the original imei? any idea? i searched for that too, but no luck.. im stucked with this.. paying for 3g but getting only g and its taking ages even to connect to google.com...
Click to expand...
Click to collapse
Well, the IMEI number behind the battery will be the phones proper IMEI number.
I think the only way you'll find out if it's been reported stolen is to contact your network and give them the IMEI on the phone (behind the battery) and ask them. Or you could pay for an online check. I'm sure theres a few companies that offer online checks. Keep in mind if the original IMEI is blacklisted, you won't be able to get it removed. Only the person who reported it stolen, and can provide proof it was theirs when it was reported can get it removed.
I'm not too sure how you'd go about changing it back to it's original IMEI, but if the original IMEI has been blacklisted, then as soon as you do change it back, you won't be able to use your phone at all. All data/voice services will stop working.

Brownie2k said:
Well, the IMEI number behind the battery will be the phones proper IMEI number.
I think the only way you'll find out if it's been reported stolen is to contact your network and give them the IMEI on the phone (behind the battery) and ask them. Or you could pay for an online check. I'm sure theres a few companies that offer online checks. Keep in mind if the original IMEI is blacklisted, you won't be able to get it removed. Only the person who reported it stolen, and can provide proof it was theirs when it was reported can get it removed.
I'm not too sure how you'd go about changing it back to it's original IMEI, but if the original IMEI has been blacklisted, then as soon as you do change it back, you won't be able to use your phone at all. All data/voice services will stop working.
Click to expand...
Click to collapse
i checked the imei writing in the phone, and here is the result
imei.info/phonedatabase/2500-sony-ericsson-k530/ (copy paste pls. i cant send the link because im new here)
i actualy have a sony ericson which i didnt know
maybe the provider is seeing my phone as sony ericson, and that phone doesnt support 3G... hmmm now i have to find a way to change the imei.
if its reported, then i come back to this

That's your problem right there. Your phone has likely been reported stolen in the past and someone has changed the IMEI to allow it back on the network.
It's possible that the phone who's IMEI has been taken doesn't support 3G so network isn't providing it to your phone.
Sent from my GT-I9505 using XDA Premium 4 mobile app

[Q] Lost LTE/4G

My very first post but a long time reader!
Somewhere along the way I lost LTE / 4G. It shows only 3G. Since I am almost always on WiFi, I just recently noticed it. I am on NI2 and 12.6 of OtimalROM. I am in a known 4G area as two other phones in my house are showing 4G - one is another S5. I have tried swapping SIM cards and it made no difference.
Under About / Status - it shows the following:
- Network: Verizon Wireless
- Mobile Network Type: eHRPD
- Service State: In Service
- Roaming: Not Roaming
- Mobile Network State: Connected
- MIN, PRL Version, ERI Version, IMEI, IMEISV, ICCID all have information in it.
When I type *#0011#, I get:
- No Service
- NETWORK: UNBLOCK
- IMEI Certi: PASS, 1
- Unknown
I have tried installing another ROM, ODIN an earlier version of the modem - without luck.
Any suggestions on how to get 4G back?

Not sure if this helps but I tried something I had not tried before. I went into ServiceMode (*#0011#) and then placed the phone in airplane mode and then turned it back on while watching what would happen. This is what I observed...
1. https://www.dropbox.com/s/xnikrs6lmnk1x0d/1.png?dl=0
2. https://www.dropbox.com/s/60c3qv7rtckqdx7/2.png?dl=0
3. https://www.dropbox.com/s/c57ibulvhl64g6l/3.png?dl=0
#1 occurs as soon as I turn off airplane mode
#2 occurs about a second before #3 appears
The other s5 in my home belongs to my spouse and is not rooted so I can't see what her ServiceMode settings are. I can see that her Mobile network type is LTE while mine says eHRPD.
Thanks again for any help.

I also have this problem, nice to see I'm not the only one. I was ready to think it was a hardware issue. I have tried all number of things. Have you at any point been on NK2? I'm on a Dev Edition S5, but stuck without LTE. Hoping someone can come up with a suggestion. My phone status reads the same as yours.

I'm hoping someone will have a fix as well. I have to think it is a setting in a config somewhere that got changed.
I'm on NI2. Have not tried NK2.

I was probing around in my build.prop file. I don't want to change anything in there because I really don't know what I am reading.
Is it possible that there is a setting in there that got changed?
I have looked to see if I can find a "stock" build.prop somewhere but no luck.
Can someone possibly provide me with their build.prop so I can compare my settings?
Thanks everyone.

how does one use that servicemode code? sorry I don't have anything to offer about your problem...
I typed that code into my dialer and nothing happened... actually dialing that number just gives me a message saying Verizon can't connect my call...

Open file /efs/carrier/HiddenMenu and modify its content from OFF to ON. Then reboot the phone.

I am on a Verizon s5 and I also lost LTE/4G. Also I cannot select any APN or mobile network. Any luck on your situation?
Sent from my SM-G900V using xda premium

sooner4life said:
I am on a Verizon s5 and I also lost LTE/4G. Also I cannot select any APN or mobile network. Any luck on your situation?
Sent from my SM-G900V using xda premium
Click to expand...
Click to collapse
Sorry...I have not. I finally did a complete wipe of everything and took the phone back to stock - no safestrap, no root. I still had the problem. i don't know if there is a file on my SD card its pulling from. I have not taken the initiative to reformat my card. It's 128 GB and is half full. I don't want to even tackle that - as I really don't think that is the problem. I also don't think it is hardware though. Don't really know what else to do other than wipe the phone back to stock and replace it with another.

Well guys - I got 4G back!!!
Even though I'm still waiting for OptimalROM r13, I decided to install Extreme Syndicate OA8 in the meantime. I don't know why but it's back!!

I have imei cert pass 1 but still no service what now?

[Q] network problem (very strange)

Hi guys, first of all i made searches and etc. and found nothing, this is very strange issue,
i have an s4 (I9500) and cell network is not working well. in E mode (i mean 2G) all internet voice and texts are working as should be.
in combined mode, if internet open then no network, or sometimes E with data but no 3G anyway. when internet disabled all is good.
in WCDMA mode, if internet is open, then nothing no internet, no voice no text. when internet disabled all is good again.
strange thing is i can use 3G very different way.
check 3G or combined mode first
make a call
after connected call open network data ( internet)
in a few seconds i have 3G internet. but if call ends no data again and after while no network either.
for troubleshooting in 3G mode before signal lost i see H or H+ sign on my phone but only up arrow shows no down arrow i think that mean 2 thing
1- i send a request to carrier but no returning
2- i cant send a request but phone try to send.
it was the same in 4.4.2 firmware, now i have 5.0.1
i try to patch modem with other firmwares modem files but i could find only 4.4.2 modem files. and tried all of them but no luck
so i want to use 3G mode, my phone has warranty but glass broken and in my country it is avoid warranty.
i have no box jtag or z3x box only have cwm mode and odin with usb. so is there any solution to my problem.
my phone info :
Android version: 5.0.1
Baseband version: I9500XXUHOD4
KERNEL VERSION: 3.4.5-4727708
Build number: LRX22C.I9500XXUHOD4
stock firmware with no patches just root.
my origin country where i bought phone is Turkey.
i will be greatfull if you guys could help me..
Thank you in advance.

mami17 said:
Hi guys, first of all i made searches and etc. and found nothing, this is very strange issue,
i have an s4 (I9500) and cell network is not working well. in E mode (i mean 2G) all internet voice and texts are working as should be.
in combined mode, if internet open then no network, or sometimes E with data but no 3G anyway. when internet disabled all is good.
in WCDMA mode, if internet is open, then nothing no internet, no voice no text. when internet disabled all is good again.
strange thing is i can use 3G very different way.
check 3G or combined mode first
make a call
after connected call open network data ( internet)
in a few seconds i have 3G internet. but if call ends no data again and after while no network either.
for troubleshooting in 3G mode before signal lost i see H or H+ sign on my phone but only up arrow shows no down arrow i think that mean 2 thing
1- i send a request to carrier but no returning
2- i cant send a request but phone try to send.
it was the same in 4.4.2 firmware, now i have 5.0.1
i try to patch modem with other firmwares modem files but i could find only 4.4.2 modem files. and tried all of them but no luck
so i want to use 3G mode, my phone has warranty but glass broken and in my country it is avoid warranty.
i have no box jtag or z3x box only have cwm mode and odin with usb. so is there any solution to my problem.
my phone info :
Android version: 5.0.1
Baseband version: I9500XXUHOD4
KERNEL VERSION: 3.4.5-4727708
Build number: LRX22C.I9500XXUHOD4
stock firmware with no patches just root.
my origin country where i bought phone is Turkey.
i will be greatfull if you guys could help me..
Thank you in advance.
Click to expand...
Click to collapse
1. Dial *#1234#and tell me what appears.
2. Install this APP and add some screenshots.

Okay i did what u want i hope u could help me.

mami17 said:
Okay i did what u want i hope u could help me.
Click to expand...
Click to collapse
Check the SIM Card and change it for one new.

Joku1981 said:
Check the SIM Card and change it for one new.
Click to expand...
Click to collapse
I already tried that one but no luck at all

mami17 said:
I already tried that one but no luck at all
Click to expand...
Click to collapse
Factory reset your device then. This look like hardware problem anyway

Joku1981 said:
Factory reset your device then. This look like hardware problem anyway
Click to expand...
Click to collapse
I already tried that too, factory reset, clean to install New rom, and no luck...
Looks like to me software problem too but i cant fix it.. Thats why i choose title as strange i dunno what to do now..

I think im having the exact same problem, it has been like this for the past 3 months. Unable to find any solution. Tried pretty much everything. The problem started 3 weeks after I installed cyanogenmod. Flashed back to stock rom but it didnt fix it.
Let me try to explain it:
I ONLY got internet + a normal cell signal when im on GSM mode.
As soon as I switch to WCDMA - WCDMA/GSM or LTE/WCDMA/GSM I dont have any internet or a cell signal, leaving me with the only option which is GSM, but that gives me Edge internet which is really slow.
The things I tried so far:
- Different ROMS
- Stock ROM
- Updated my APNs manually and automaticly
- New sim card
- Opened my S4 to check for any damage or water damage, everything looks fine!
I tried my SIM card in my friends phone, I got perfect 4g then.
Im starting to believe its a hardware problem

strukel said:
I think im having the exact same problem, it has been like this for the past 3 months. Unable to find any solution. Tried pretty much everything. The problem started 3 weeks after I installed cyanogenmod. Flashed back to stock rom but it didnt fix it.
Let me try to explain it:
I ONLY got internet + a normal cell signal when im on GSM mode.
As soon as I switch to WCDMA - WCDMA/GSM or LTE/WCDMA/GSM I dont have any internet or a cell signal, leaving me with the only option which is GSM, but that gives me Edge internet which is really slow.
The things I tried so far:
- Different ROMS
- Stock ROM
- Updated my APNs manually and automaticly
- New sim card
- Opened my S4 to check for any damage or water damage, everything looks fine!
I tried my SIM card in my friends phone, I got perfect 4g then.
Im starting to believe its a hardware problem
Click to expand...
Click to collapse
When turn of data in 4g or 3g Mode can you see signal? Can you make a call?

strukel said:
I think im having the exact same problem, it has been like this for the past 3 months. Unable to find any solution. Tried pretty much everything. The problem started 3 weeks after I installed cyanogenmod. Flashed back to stock rom but it didnt fix it.
Let me try to explain it:
I ONLY got internet + a normal cell signal when im on GSM mode.
As soon as I switch to WCDMA - WCDMA/GSM or LTE/WCDMA/GSM I dont have any internet or a cell signal, leaving me with the only option which is GSM, but that gives me Edge internet which is really slow.
The things I tried so far:
- Different ROMS
- Stock ROM
- Updated my APNs manually and automaticly
- New sim card
- Opened my S4 to check for any damage or water damage, everything looks fine!
I tried my SIM card in my friends phone, I got perfect 4g then.
Im starting to believe its a hardware problem
Click to expand...
Click to collapse
İf your answer no try this solution http://forum.xda-developers.com/showthread.php?t=2192025 ı suppose your Phone I9505 and we don't have same problems.

mami17 said:
When turn of data in 4g or 3g Mode can you see signal? Can you make a call?
Click to expand...
Click to collapse
Nope I just tried it, I dont have a signal and I cant make a call

Radio off / no network - LG-H990DS - do I have any options?

Hello,
Hoping someone may be able to help me
So this morning I lost the ability to make voice calls and use mobile data on my LG V20 (H990DS variant - totally stock). In the top right-hand corner where it shows the mobile network strength I have an empty box with an X in the top corner. Everything else on the phone is working hunky dory. Strange as the phone is stock and this didn't happen after an update, etc. Obviously it could be a hardware failure but I'd like to rule out it being a software problem as I really quite like the phone!
The phone knows a SIM card is installed as it knows the IMEI, APN settings etc. However it just won't connect to a network. I've checked the settings and the service state is set to "radio off" and the mobile network state is "disconnected" which makes sense given I can't get onto a mobile network.
Question is how do I turn the radio back on? I've tried what I think is the obvious stuff:
1) Removed the battery, left off for a couple of mins and rebooted (hoping it will then rescan and find the network) - no change
2) Factory reset - no change
Given I have the H990DS variant do I have an options? I say that as I thought this variant wasn't particular friendly in terms of flashing, ROMS, etc.
I'm a n00b but can follow instructions so if anyone has ANY advice I'd appreciate it!
Thanks muchly in advance.

see if the sim card is getting network in some other phone

aakashverma0007 said:
see if the sim card is getting network in some other phone
Click to expand...
Click to collapse
Sorry yes I should I have I can confirm the SIM card works fine in another phone ...

intotheunknown said:
Sorry yes I should I have I can confirm the SIM card works fine in another phone ...
Click to expand...
Click to collapse
Sounds like a hardware failure
Sent from my LG-H910 using XDA Labs

It could indeed be a hardware failure but I find it odd that it can read the SIM (knows the IMEI, APN settings, the number, etc) and I seem to recall when I first got the phone I had to jump through some hurdles to get the SIM to work.
Is there no way to toggle the radio on/off? I've tried *#*#4636 ... but it won't give me access to the phone information section to reset the radio here ...

did you find a fix?