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.
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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.
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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
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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.

Nexus 4 No service

Hi, My Nexus 4 got no service already 1 week++. I already tested with the other SIM card and I also do a research on Internet. On Internet, also got many people faced this problem. On Internet, many people said the nexus 4 cant accept the SIM card that is normal SIM card cut into micro SIM card, must use the original micro SIM card. I also try with the solution and I bought a SIM card that is original SIM card but the micro SIM card also doesn't work. All the SIM card are cant detected by he nexus 4, will the Sim Card tray broken. My phone are protected by cover since day one and never dropped into water. I wish LG can fix this problem and help me to fix this problem, this really cause me a lot of problem. Regards, Tang.
(Email to LG)
Sorry for my English.
Can any one help me.

hqtang33 said:
Hi, My Nexus 4 got no service already 1 week++. I already tested with the other SIM card and I also do a research on Internet. On Internet, also got many people faced this problem. On Internet, many people said the nexus 4 cant accept the SIM card that is normal SIM card cut into micro SIM card, must use the original micro SIM card. I also try with the solution and I bought a SIM card that is original SIM card but the micro SIM card also doesn't work. All the SIM card are cant detected by he nexus 4, will the Sim Card tray broken. My phone are protected by cover since day one and never dropped into water. I wish LG can fix this problem and help me to fix this problem, this really cause me a lot of problem. Regards, Tang.
(Email to LG)
Sorry for my English.
Can any one help me.
Click to expand...
Click to collapse
For what its worth
I cut my micro sim ( with a punch ) and it works fine

check in settings if you have a baseband installed sometimes it uninstalls by itself so that could be the problem

extremetempz said:
check in settings if you have a baseband installed sometimes it uninstalls by itself so that could be the problem
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Click to collapse
Hi, thanks for reply.
Where to check, in setting app? Or Installed apps?
Regards.

hqtang33 said:
Hi, thanks for reply.
Where to check, in setting app? Or Installed apps?
Regards.
Click to expand...
Click to collapse
Settings > About phone > Baseband version
Does the phone ask you to insert SIM, or are you unable to connect to your cell provider?
If you are asked to insert SIM, you may have a bad SIM slot (broken pin contacts), or the SIM is placed incorrectly in the slot.
If you just have no service, check your phone number is displayed correctly in "About phone" and try to scan for available networks in:
Settings > Wireless & networks (more) > Mobile networks > Network operators
then use "Choose automatically"

Will the sim tray broken. My nexus 4 is running JB Stock and no root.
Sent from my Nexus 4 using xda premium

You need to flash a radio.
Sent from my Nexus 4 using xda app-developers app

similar problem
madmike413 said:
You need to flash a radio.
Sent from my Nexus 4 using xda app-developers app
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Click to collapse
i got this problem after the 4.3 update and i have flashed every baseband for this phone but none of them work now im back to useing a old ass zte

IsabellaX said:
i got this problem after the 4.3 update and i have flashed every baseband for this phone but none of them work now im back to useing a old ass zte
Click to expand...
Click to collapse
Had the exact same problem. Had no service at all (the network icon was just a triangle), no baseband, no IMEI. This is what I tried so far. My phone was stock 4.3 before my experiments :
1. Tried toggling *#*#4636#*#*, tried all the options there - no luck. Radio was "off", and no matter how many times I tried to click on Turn On Radio, it wouldnt start
2. Tried switching Sim cards, from same operator and from a different operator, no luck
3. Did a factory reset using the settings menu - no change
4. Finally, rooted the phone using http://forum.xda-developers.com/showthread.php?t=2010312 (First time ever, complete noob here). Everything went smoothly. Installed all the standard stuff from the 4.3 image.
Now, I could see the radio intermittently turn on and off - what a relief ! Atleast I knew there exists a chance this is not a hardware issue. I was getting service for 10 seconds, then it was going off for 10 seconds. This was happening continuously.
5. Tried *#*#4636#*#* and toggling all options again, (even GSM only, WDCMA only, preferred etc). I am in India and using Idea Cellular.
6. Searched like crazy on the xda forum for possible solutions - decided I'll try out a different radio version (I had 0.84 on mine) from here : http://forum.xda-developers.com/showthread.php?t=2087227 - If you're a complete noob like me and dont know what the hell I'm talking about, trust me, flashing a radio is not that difficult. Just refer to my earlier thread link
7. Tried flashing each and every radio from 0.24 - 0.84. Mixed results. Except for 0.83 and 0.84 all other radios atleast maintain signal throughout. However it never turns "blue" - I cannot access the internet from my phone - I have a data plan, the apn information is correct and every other setting is proper (airplane mode off, data on etc). The other odd thing is I can call and receive calls, however there is absolutely no audio !
By elimination - I think there are only two options here - either this has something to do with the 4.3 update altogether, or this is a hardware glitch on the nexus 4 which is activated by some unique sequence of steps. Please note I did NOTHING "illegal" on the phone before this problem - no rooting no custom software, not even any apps which mainstream users would call "shady" - just the usual FB, Mail apps, my corporate mail account.
Any ideas here - I am going to go ahead and try flashing my phone back to stock 4.2.2 again, and hope that works !! Please help ! And apologies for the tremendously long post first up
Regards,
NoobNexus

NoobNexus said:
Any ideas here - I am going to go ahead and try flashing my phone back to stock 4.2.2 again, and hope that works !! Please help ! And apologies for the tremendously long post first up
Regards,
NoobNexus
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Click to collapse
In the off-chance you might still read this: I'm having the same problem, just as some other Nexus 4 users: http://forum.xda-developers.com/nexus-4/help/nexus-4-service-t2501076/post61681896#post61681896
Was this issue ever solved for you?

IsabellaX said:
i got this problem after the 4.3 update and i have flashed every baseband for this phone but none of them work now im back to useing a old ass zte
Click to expand...
Click to collapse
i recently buy a nexus 4 from ebay, only for nostalgia, so, when i receive the cellphone, i turn on without a sim inside, connected to wifi and the phone request for 3 upgrades of security, the nexus was in 5.1.1, the last than ir support, so i accepted the upgrades and the nighmare start, when i put my sim, the nexus not recognized it, i try everything, put in airplane mode and back and nothing, full reset from recovery twice and nothing.
So, i unlock the bootloader, install a recovery (clockwork) and root, after download from google the formware 4.4.4 for nexus 4, start the downgrade, when my nexus wake up in kitkat with my at&t (mexico) sim inside, the same problem, still not detecting simcard, i connect to wifi and the cellphone request for an upgrade, android 5.0.1 , click in next and the nexus start downloading and installing the upgrade, after 15 minutes, again with the sim indide, wake up with lollipop and the signal come back again ¡¡¡¡¡¡¡
My nexus after 24hrs is still with signal, whitout problems, but still request for the other 3 upgrades ( android 5.1.1 and other two upgrades for security), but with previous experience.... i will keep in 5.0.1......

Problems with galaxy s5 network

Hello guys! long time lurker, first time poster here.
I have a galaxy s5
recently the phone acted extremely weird when i first used it. So i flashed the phone and re-installed the android software which fixed all the weird problems i was having.
Now im still having 1 problem. with my SIM card installed i have full network (5 bars) when i try to make a phone call i get a "not registered on network" error. I remove my SIM card, the network is still present (5 bars)
I seem to have full signal at all times with or without my SIM card. The phone does not acknowledge the SIM when i put the SIM card in or when i remove it.
Did i do something wrong when i flashed my phone? i installed the same stock ROM that was on the phone with the proper carrier (videotron)
I need your help!
Thank you in advance.

i forgot to mention that the phone is rooted. If i could somehow figure out how to reset the carrier settings i think it might help.

GeoffreyM said:
i forgot to mention that the phone is rooted. If i could somehow figure out how to reset the carrier settings i think it might help.
Click to expand...
Click to collapse
have you tried going into settings, Mobile Networks, and then Network search? and let it sit and pick your own network? do you have another active sim you could maybe try?
Sent from my SM-N9005 using Tapatalk

hyelton said:
have you tried going into settings, Mobile Networks, and then Network search? and let it sit and pick your own network? do you have another active sim you could maybe try?
Sent from my SM-N9005 using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply.
I've tried selecting my own network manually serveral times with 2 different SIM cards.. It didn't change anything. I still have full service without a SIM card.

Maybe you flashed a wrong modem for your area, try to flash the right and newest modem for your area. If that takes no effect, contact your service provider.
Sent from my GT-I9505G using XDA Premium 4 mobile app

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Check your APN settings. Also, try a SIMswap. Old sims do not like new phones, and mobile data is the first to go.
Sent from my SM-N9005 using Tapatalk 2

ShadowLea said:
Check your APN settings. Also, try a SIMswap. Old sims do not like new phones, and mobile data is the first to go.
Sent from my SM-N9005 using Tapatalk 2
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Click to collapse
APN is done by Vodafone automatically, checked it manually too. It's proper. Of course I cut my SIM. Big sized SIM can't even fit this device.

King ov Hell said:
APN is done by Vodafone automatically, checked it manually too. It's proper. Of course I cut my SIM. Big sized SIM can't even fit this device.
Click to expand...
Click to collapse
Ahhh, there we go. Try a different SIM. Either it's too old (anything before January 2013 is too old), or you're one of the 50% where cutting the SIM causes problems.
(Yes, I know it doesn't fit. 30% of my day revolves around people with faulty sim cards.)
Sent from my SM-N9005 using Tapatalk 2

King ov Hell said:
I get my N9005, telephony functions are working (calls - message - wifi bla bla) but I can't use my mobile data. Neither 3g nor 2g.
When I activate mobile data icons are existing like there's a connection. H, H+, E icons exists but no connection. I upgraded my firmware to NF4 too, did all wipes but still not working...
Click to expand...
Click to collapse
tried update modem?
basic problem lies on the APN setting. but if you said you have checked it and all ok, try to update your modem into your device latest modem.
I use a big simcard cut into smaller one, and no problem. I have old simcard since 2011 as well.

ShadowLea said:
Ahhh, there we go. Try a different SIM. Either it's too old (anything before January 2013 is too old), or you're one of the 50% where cutting the SIM causes problems.
(Yes, I know it doesn't fit. 30% of my day revolves around people with faulty sim cards.)
Sent from my SM-N9005 using Tapatalk 2
Click to expand...
Click to collapse
I had my SIM since 2007. This should be problem
antique_sonic said:
tried update modem?
basic problem lies on the APN setting. but if you said you have checked it and all ok, try to update your modem into your device latest modem.
I use a big simcard cut into smaller one, and no problem. I have old simcard since 2011 as well.
Click to expand...
Click to collapse
Like I said in the OP. I already upgrade my whole firmware. Modem is updated too but problem is still same.

Put your SIM card into another phone and test.
You may have to check with your mobile operator for data-service registration.

King ov Hell said:
...
Like I said in the OP. I already upgrade my whole firmware. Modem is updated too but problem is still same.
Click to expand...
Click to collapse
u can try what vndnguyen said.
But, just to comment... actually, when you upgrade firmware, normally it won't flash any modem/csc. You will need to do it manually.
This is what I know when I experienced on any official firmware upgrade on my device.

antique_sonic said:
u can try what vndnguyen said.
But, just to comment... actually, when you upgrade firmware, normally it won't flash any modem/csc. You will need to do it manually.
This is what I know when I experienced on any official firmware upgrade on my device.
Click to expand...
Click to collapse
Hmm, I did the process with Odin. Check SS Isn't that a modem ?

King ov Hell said:
Hmm, I did the process with Odin. Check SS Isn't that a modem ?
Click to expand...
Click to collapse
yep. that's the modem.
pull it out from the zip. and flash it from ODIN under CP.
when you go to download mode, make sure you switch your phone completely OFF first. then go into download mode by 3 combo buttons.
if 1st try fail, no need to worry. repeat the same steps, and you are good to go.
Sometimes I need 3 times to succeed. Don't know why also. Sometimes 2 times, and sometimes 1 time also no problem.

I (as with others) are having the exact same issue and is actually something that has been brought to Google's Attention: https://code.google.com/p/android/issues/detail?id=63524 Note that the Android Issue tracker refers specifically to The Nexus 5 but other users in the page are also having the issue on other devices, like you and I.
I have tried multiple different possibilities to fix it but still no solution.

My bad guys. My internet package was out. (I didn't pay -.-) Paid now it's working.

LG G6 Mobile data issue

Hello All.
This may sound like an easy problem to solve and a part of me hopes it is. but im fairly well versed in android and has me baffled.
Phone runs beautifully 870DS. When i leave WiFi, the swith to mobile data takes for ever and then remains super fickle and intermittent. I sometimes do not have any data moving whatsoever (offline dinosaur in chrome level) When i connect to wifi again, all is fine, instantly.
I have full signal (full bars).
Mobile data on.
Switch to mobile data on.
The correct network registered & the correct APN for that network is set.
I have it set to GSM/WCDMA/ LTE auto
I have tried setting RAT set to every possible combo and it still continues!
I read somewhere it could be caused by radio initiation, so i went in *#*#4636#*#* to run a ping test but "phone information" throws up an error "This application does not work on this device"
Im 95% certain it is unlocked because i I bought the phone in another country and just popped my new sim straight in without hassle.
The mobile data issues started almost immediately. Now im stumped as what to do.
Any suggestions would be greatly appreciated and rewarded with beer :good:
THANKS!!!

In Developer Options, try switching on the "Agressive WiFi to Cellular Handover" option.

LPMatt said:
In Developer Options, try switching on the "Agressive WiFi to Cellular Handover" option.
Click to expand...
Click to collapse
Thanks. I will try that and trial run it over the next few days. The issue also occurs randomly while out on LTE or 3G. I will take my phone out to check google or whatsapp and nothing will send. So as your suggestion may be a work around, i doubt it will be a solve.
Will let you know how it goes

deathcells said:
Thanks. I will try that and trial run it over the next few days. The issue also occurs randomly while out on LTE or 3G. I will take my phone out to check google or whatsapp and nothing will send. So as your suggestion may be a work around, i doubt it will be a solve.
Will let you know how it goes
Click to expand...
Click to collapse
No change or improvement to the connection

Bump for anymore help from anyone. Please??
Getting desperate here....

deathcells said:
Bump for anymore help from anyone. Please??
Getting desperate here....
Click to expand...
Click to collapse
Does the phone have the right bands for 4G in your country?

Thanks for the reply!
Not sure, how do i check that?

aioan said:
Does the phone have the right bands for 4G in your country?
Click to expand...
Click to collapse
Thanks for the reply!
Not sure, how do i check that?

deathcells said:
Thanks for the reply!
Not sure, how do i check that?
Click to expand...
Click to collapse
go to settings, system, about phone, hardware info and check the model number.
For example I have LG-H870 (European bands, single SIM model).
I see you have dual sim so probably model H870DS and this should have enough bands to work well in Europe and Asia. Check here:
https://www.teamandroid.com/2017/04/15/lg-g6-model-numbers-variants/

aioan said:
go to settings, system, about phone, hardware info and check the model number.
For example I have LG-H870 (European bands, single SIM model).
I see you have dual sim so probably model H870DS and this should have enough bands to work well in Europe and Asia. Check here:
https://www.teamandroid.com/2017/04/15/lg-g6-model-numbers-variants/
Click to expand...
Click to collapse
Thanks for that. Yes according to this https://www.frequencycheck.com/carr...0ds-g6-dual-sim-td-lte/mtn-group-south-africa
I do have the correct bands. Could a carrier lock only one of the slots rendering it single sim in effect? The one sim works perfectly, second sim, no dice

Sorry for bumping an old thread.
Gf is having a similar issue on her phone; long story short, it happens that sometimes, after being connected to Wi-Fi and turing it off, it takes ages for her to get a mobile data connection, despite having full signal.
I had her replace the SIM, as I've seen similar problems (intermittent data connection, phone appears connected but no Internet available, etc.) with a SIM card that was about to go bad; it didn't help. Next step would be a full phone reset.
@deathcells : did you find the cause of your issue?

@fagentu.xda
No unfortunately not. I just deal with it. Extremely frustrating standing in the shop trying to pay without internet...
I tried the settings and force options to no avail.
I tried using both sim cards (from different providers) in both slots for months and no combination ever worked for me. I have yet to figure out if i bought a dudd phone or if a work around exists. Please let me know what you find out! Thanks and best of luck

Have the same issue with mine now. It started to go bad a few weeks ago... Tried everything. Changed SIM card, factory reset, etc... and nothing will change.
I'd say that the phone is just faulty. As I'm still under the warranty I'm in contact with LG to find out about a possible fix or phone replacement. I'll try to keep you posted.

Have you guys find a solution for this? I cant do anything. Does flashing kdz to andriod 9 pie helps?