[Q] Galaxy S I9000 - No Network Signal - Galaxy S I9000 Q&A, Help & Troubleshooting

Am facing a weird problem on my Galaxy S I9000. Some days before, I went out of my Carrier Hot Zone, i.e. on Roaming and lost network signals for the entire stay of my roaming period.
I have inserted the sim card in another phone and it worked fine. But on my Galaxy S, now, even in the hot zone, i.e. my local network does not show me any signal strength except emergency calls. Again, sim card works fine in another phone.
Now my Galaxy S won't accept any sim card and shows no network signal. I have tried flashing different ROM's and Modems with no luck.
Any solution to this? Thanks in advance.

Hmm,
Are you sure that Airplane Mode is not active ?

I have the same problem, after a root my i 9000 y lost signal from my carrier. i have tried dierents roms and modem with no good results. any help? i appreciate... thanks

Try flashing another modem
Sent from my GT-I9000 using XDA

Related

[Q] SIM card reading problem

My i9000m on the Bell mobility network is not picking up data after an overnight charge with the phone turned on. Today - nothing. I do have phone use and I can access data on WiFi.
I am running stock ROM. I unlocked the phone using a Rogers SIM card, about a week ago, but went back to the Bell network immediately after with no problem. After unlocking I got the Kies to work and updated to UGJH2. Since then, the network access has been spotty but I've switching to WiFi then switching back and it's coming back. I purchased this phone with a different Bell SIM2 then put my old Bell SIM1 (from an Omnia2) in this device.
*#7465625# shows Personalizatiob Status
network lock [OFF]; Network sublock[OFF]; SP lock [OFF]; CP lock [OFF]
What I've tried
1) Switching to WiFi and back - no data
2) Putting SIM1 back into the Omnia 2 - O2 booted up and accessed the Bell network including data. CONCLUSION - The problem is not the SIM card.
3) Putting the SIM2 into the i9000m - no network access at all; not even phone. This SIM2 is working in the O2 and originally worked in the i9000m. Much to my surprise when I put SIM1 back in the SGS it still picks up the Bell network.
4) Squeezed the SIM holder blew out with compressed air in case it's just a physical problem with the SIM being held tight enough - SIM1 still not picking up data.
So it would seem that there is a problem with my SGS reading SIMs other than the one in use when whatever happened happened. Any suggestions on how to get other SIMs, even from the same network, to work? If I have to submit my phone to Bell I need to re-lock it. How do I do that?
Thanks for the help.
--- update---
relocked the phone using *7465625*638*# then 302610 and my unlock code. Power off / on still no data access. Now *#7465625# shows Personalizatiob Status - network lock [ON]; Network sublock[OFF]; SP lock [OFF]; CP lock [OFF]
first try this
http://forum.xda-developers.com/showthread.php?t=789039&highlight=*#0011#
does it show which band it is using for data?
you can also try this
http://forum.xda-developers.com/showpost.php?p=8124344&postcount=45
install the APN on off
then flip it on / off and back to on
see if that helps
Thanks for the response.
I did the #*0011* It's flipping between the 850 on 5 and 1900 on 2 The DL and UL numbers are slightly different. I did have to reconnect to the APN.
How would this affect installing *other* Bell SIMS? That's what worries me the most - that it wouldn't read another Bell SIM that works in another phone.
the only time i see this happen is if you swap the SIM card when the phone is ON
if you turn off the phone, change between SIM1 and SIM2, then turn it back on, you should not see that problem
I know because i was playing around with multiple SIMs when we were researching the Unlock methods for this phone
I take out the battery before I change the SIM. I have to for the Omnia 2 so I just got in the habit. This is sounding worse and worse
although I was rushing off to work so maybe I didn't - hope springs eternal.
----resolution ---
sometimes you just have to call Bell, wade thru the 1st level support and get to someone who knows what's up. Apparently my phone plan changed today (I didn't know it was post dated) and the data feature was not provisioned even though it's a plan that includes data. The guy invoked the feature and poof - data. yay. AllGamer, thanks for your help.
you'r welcome
I did have the same problem, using 2 numbers from 2 telcos, both sims work fine on my iphone but I9000 fail to recognize 1 of these 2, no matter how I tried, I actually did all crazy things like insert couple paper layers between the sim and the sim slot to create additional pressure on the sim contact circuit.
Suck thing about this is non-recognizable sim has data plan with it, which I want to use on I900, finally I asked the carrier to issue a new sim and all thing work fine. It's a new sim type anyway. You may want to try this if all other means doesn't work.
The fix is easy I use to have a moto milestone and when this happened a simple reboot fixed the data connection.
Sent from my GT-I9000M using XDA App

Modem Help

I bought this tablet a year ago unlocked i was on three network i switch to vodafone and updated to 2.3 everything worked but decided to switch back to three this is where problems started
Inserted three sim and it just said emegency calls only if i made a call it said call not sent
Inserted three broadband tablet sim said same thing
So i put a tmobile sim card in that tried to call but immedietly disconnected but the mobile internet worked
Inserted vodafone and everything work calls texts and internet
Then in about phone it said unknown firmware so i tried every european firmware it reconised the firmware but everything was same as before so i tried the unlock which set my serial number to 0000000000 which did nothing i need three for the speed otherwise this tab is pointless except for wifi at home ive reinstalled several times with all different kernals and roms im currently on 2.3.6 please help
Sent from my GT-P1000 using xda premium
Sent from my GT-P1000 using xda premium
I encountered exactly this issue today.
I wanted to test the data speed from another carrier (same band: 850 Mhz).
It did not detect the data network so I thought "never mind", and inserted my SIM I always used (over 10 months).
It now says "emergency calls only", and when I click to check Mobile Networks in settings, it says no SIM detected. When I insert my SIM into another phone it works.
I tried a few other radios, but it doesn't work.
So what to do with an issue like this?
I have no idea i have tried every possible combination of everything from flashing modding but if a manually choose network it says sim not allowed to register on this network if that helps ive rung both three and samsung with no help x
Sent from my GT-P1000 using xda premium
What modem are you guys using ?
dirlan2001 said:
What modem are you guys using ?
Click to expand...
Click to collapse
I need for the 850 Mhz band, and so far only 2 are confirmed to work on this band.
I have tried both, and several others now as well. Now I would settle for SIM card detection and GSM signal...
For example I have tried
Telestra-modem.zip
JK3
JPZ
HKC1
JK5
JPE
None work even for detecting the SIM card.
Calavaro said:
I need for the 850 Mhz band, and so far only 2 are confirmed to work on this band.
I have tried both, and several others now as well. Now I would settle for SIM card detection and GSM signal...
For example I have tried
Telestra-modem.zip
JK3
JPZ
HKC1
JK5
JPE
None work even for detecting the SIM card.
Click to expand...
Click to collapse
Hmmm, I used to be on JMA, changed to JPZ and now I'm on JQ2 all working as it should here in Belgium with Telenet...
Calavaro said:
I need for the 850 Mhz band, and so far only 2 are confirmed to work on this band.
I have tried both, and several others now as well. Now I would settle for SIM card detection and GSM signal...
For example I have tried
Telestra-modem.zip
JK3
JPZ
HKC1
JK5
JPE
None work even for detecting the SIM card.
Click to expand...
Click to collapse
i have tried some of the above my friend who got his galaxy tab the same week from the same place so i tired the same firmware as him which is what i am currently on now and nothing its JID
i have just tried km1 and jq2 but when i used jq2 it showed as jq3
black1stallion2 said:
i have just tried km1 and jq2 but when i used jq2 it showed as jq3
Click to expand...
Click to collapse
Yep, same here... the zip says JQ2 but the inside is JQ3, which I assume is the latest release Anyway, for me it works a charm.
I just sent my 10 month old Tab for repairs.
The Samsung service center people and carrier staff were all very surprised it didn't work.
Let me explain why. When I insert a SIM card from carrier #1 on 850 Mhz band it works. I then insert a SIM card from Carrier #2 on the same 850 Mhz band, and it does not work.
I insert SIM #2 into another android phones (tested Galaxy S2, S1, galaxy nexus, and a "dumb-phone")... the SIM works.
Then we tested SIM #3 from the same carrier of SIM #2.... SIM #3 works. Very confusing.
Conclusion.... the SIM card slot is "broken". Nobody knows why some SIM's work, and others do not.
Result. 3-5 days wait for a repaired device or a new device.
Edit: And big thanks to every android custom rom developer out there. Your hard work and diligence allowed me to revert back to a Stock 2.2 ROM, including locked bootloaders, before sending back for repairs.
This is bad news...
I got a call from Samsung and they explained to me that they had to change the entire mainboard. Naturally they didn't have any in stock, and had to order it from Korea, and I'm out of a Tab for 3 weeks.

[Q] S III mini network issue

Hi guys,
I own an i8190, baseband : I8190XXALJL and I encounter frequent network outage.
Although the signal strenght indicator shows 3-4 bars, I cannot be called, cannot call and data is not being fetched.
On battery usage app, the network is most of the time "green".
On any other phone around me (blackberries, iphones, SGS II and III), and on the same network the problem does not reproduce.
If I turn the phone to airplane mode, and then back on, I am able to call, send mails so on and so forth.
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
I'm currently running the ALL2 baseband, but previously had both the ALJL and the ALK6 ones and didn't encounter any such issue...
Before sending it back you could try with a different SIM card, maybe yours is acting up (it sometimes happens, especially with old SIMs).
Seeing how nobody complained of a similar issue though, I don't think that changing your baseband will have an impact, but if you'd like to give it a try you can download original firmwares (that contain the baseband) from here: http://www.sammobile.com/firmware/. In order to install them, just follow the steps in the root thread.
Will do so. I'm going to pit-stop my SIM card @ Vodafone and let you know about it.
It's strange that this happens only deep inside buildings (eg. offices, malls, etc..).
When this happens, usually the data activity indicator disappears OR the S3 mini is using 3G frequencies (not H, not G, but 3G)
Just changed my sim card and the issue still persists...
It's driving me nuts. My feeling is that the S3 mini doesn't lock on a network cell when 2 are available with similar coverage.
Will upgrade to the latest build and let you know about it :banghead:
Sent from my GT-I8190 using Tapatalk 2
And now the handset runs XXALL2 from vodafone uk.
I'm curious if the phone will have that network issue furthermore.
Happy Holidays!!
Sent from my GT-I8190 using Tapatalk 2
bogdangr said:
Hi guys,
I own an i8190, baseband : I8190XXALJL and I encounter frequent network outage.
Although the signal strenght indicator shows 3-4 bars, I cannot be called, cannot call and data is not being fetched.
On battery usage app, the network is most of the time "green".
On any other phone around me (blackberries, iphones, SGS II and III), and on the same network the problem does not reproduce.
If I turn the phone to airplane mode, and then back on, I am able to call, send mails so on and so forth.
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
Click to expand...
Click to collapse
I'm exactly in the same situation . Please let me know if your new firmware solves the problem.
Tks,
ci6i said:
I'm exactly in the same situation . Please let me know if your new firmware solves the problem.
Tks,
Click to expand...
Click to collapse
So far there's no difference. Where I live the network coverage is pretty bad, but it doesn't "disconnect in the background".
Only at the office I can test it out for sure or inside massive buildings.
ci6i, go ahead and update; install kies (for drivers only ), get odin3 1.87 and flash it with XALL2 from samfirmware.
Lately I see there is XALL3 available for some asian countries.
I still think that my BlackBerry 9810 is a tank. unfortunately vodafone romania doesn't sync emails two ways via BIS so... :crying: I had to get back to samsungs...
Well, i understand to lose signal if network coverage is bad, but my phone gets "network stuck" in the middle of town. I noticed this few times: at job, the phone stands on the table near me, and i receive sms about missed calls (i have voice calls diverted to voice mail when unreachable). If i try to call or browse the net at this moment, it's impossible until i set airplane mode on then off. All this time, the phone shows full network signal and HSPA data connection.
I'll try to change the firmware after hollidays.
As mentioned above, try to change firmwares (to XXALL2), I've also noticed some network drops when I'm at home (however this is expected in my case), but when I installed this firmware, I noticed some signal gain (full on 2G and +1-2bars on 3G signal).
Hi again.
The same issue even on xall2
Just happened again today in a crowded place.
It goes to "3G" from "H" and then it's gone off the network.
Will try with XALL3 although there is a small improvement concerning "sticking to the network carrier". It seems it'a hard job to get a call when in coverage area...
If still no success, I'll loose my patience with this Sammy...
See ya!
Sent from my GT-I8190 using Tapatalk 2
You get SMS because they use a dedicated network bandwidth for this technology and apparently the S3 mini does not loose connection on this communixation channel.
It appears that S3 mini is dropping voice and data, but not sms and CB (cell broadcast).
Sent from my GT-I8190 using Tapatalk 2
LJL version. No drops. Sometimes when i am on edge of 3G coverage area
Sent from my GT-I8190 using xda app-developers app
Hi, i also have the problem with vodafone Romania. I can't place calls or use data connection. After reboot everything is ok. I tried to switch to Airplane mode and back, but no results.
Same problem over here
bogdangr said:
Does any of you have the same problem ?
If any of you updated to I8190XXALL2, is this problem still persisting ?
Should I send it to the service ?
Click to expand...
Click to collapse
Hi bogdangr,
I have the same problem with my SIII mini. From time to time, after working normally, it loses the H or 3G symbol and shows about two or three signal bars, but if I try to make a call or receive one the operation fails miserably. The airplane mode trick doesn't work for me, and I have to reboot the phone to get it working again.
I've updated to the latest official firmware, but the problem is still there. Have you found a solution for this or anybody has more ideas of things to try?
Thanks you all,
MFC
I'm on VF RO, too.
Crappy phone, what can I say.
If it can't follow a network where there is sufficient coverage...
miguelfc said:
Hi bogdangr,
I have the same problem with my SIII mini. From time to time, after working normally, it loses the H or 3G symbol and shows about two or three signal bars, but if I try to make a call or receive one the operation fails miserably. The airplane mode trick doesn't work for me, and I have to reboot the phone to get it working again.
I've updated to the latest official firmware, but the problem is still there. Have you found a solution for this or anybody has more ideas of things to try?
Thanks you all,
MFC
Click to expand...
Click to collapse
Hi Miguel,
The only workaround for this issue (at least for me) is to keep it in GSM mode (no "AUTO mode", no "WCDMA only").
So the crappy phone won't have to switch frequencies and I can get phone calls (I start considering a luck when the phone rings...)
I'm on 4.1.2 now baseband I8190DXALL3 (latest on samfirmware) and still the same.
You just don't want to know how's everything downloading limted to GPRS
BR,
Bogdan
Does anyone know what's that *# code that enables service / engineering mode ?
I want to select on which network frequencies is the phone allowed to work.
I want to disable 3G mode and leave GPRS, EDGE, and HS(D)PA only.
The reason is that when the issue appears, S3 mini switches from "H to 3G" and "G to 3G" and then it's gone;
Although there are moments when it can fetch data with network on 3G coverage without problems...
The code is *#*#info#*#* but it doesn't work .
I don't think it's a good ideea to disable those settings. Maybe it's a temporarily problem and i know Vodafone is testing/launching 4G coverage.
For me, this network issue is happening once in a week. How often do you lose phone signal ?
ci6i said:
The code is *#*#info#*#* but it doesn't work .
I don't think it's a good ideea to disable those settings. Maybe it's a temporarily problem and i know Vodafone is testing/launching 4G coverage.
For me, this network issue is happening once in a week. How often do you lose phone signal ?
Click to expand...
Click to collapse
I found out the service code but the RF setup is not "sufforted".
Vodafone has implemeted already 4G in selected areas but it's not about that. On blackberry, iphone and nokia this is not happening.
As a frequency... 3-5 times a day while I'm at the office.
Sent from my GT-I8190 using Tapatalk 2
I'm using it with Orange Spain. I will try using the phone this weekend with another operator to find out if the problem is operator related.

[Q][Solved] Some particularities of "Free" network in France

Hi everyone,
I bought myself a nexus 4 and I gave the P990 to my girlfriend.
I did a factory reset and inserted her SIM card (the mobile operator is called Free, a french operator), and I got a "roaming" symbol in the network. This was with the combination I have in my signature.
I've been trying different basebands today, and now I can't get any reception at all, it just says "No network".
Now I'm with DjangoManouch stock rom, 218 baseband, still no network with Free's sim card, but I tried with my sim card and it's working perfectly... I tried Free's sim card in my nexus 4 and it is also working perfectly...
I did get "normal" reception using the combination in my sig with free's sim card at a specific location... my best guess is that free's cell towers need a very specific baseband for it to work correctly? Do you have any ideas?
Thanks a lot in advance.
Cheers!
Slight update, the total network loss was solved by changing to the correct IMEI (it must have been reset by one of the flashes I did).
But the "roaming" problem is still there Manually selecting the network solves it temporarily. Has anyone ever had a similar situation?
Thanks!!
Did some more research... apparently her network has very limited coverage, and for the areas where it is not covered it has a deal with another operator, Orange.
So, whenever she doesn't have "official" coverage, she'll get the roaming symbol. And apparently they have an app to avoid people in the border to get reception from foreigner operators, which would mean "real" roaming, which is odd and interesting.
Anyways, hope it will help someone...

N920I - Marshmallow MMB29K.N920IDVU3BPL2 - No 4G/3G and Network Dropouts Optus AU

Hi All,
Disclaimer: Newbie.
During December I updated my N920I via OTA. Since this update my phone constantly has network drop outs, no 3G or 4G. If I force 2G it will sometimes work albeit very slowly.
Steps taken:
Simcard Replacement
Factory Reset
Manual Flash (N920IDVU3BPL2) via Odin
Prior to this update the phone was working fine with build N920IDVU3BPJ3.
I downloaded the N920IDVU3BPJ3 Optus specific image from Sammobile and tried deploying it using Odin however I received the "SYSTEM REV CHECK FAIL DEVICE 1 BINARY 0" error. From what I have read it means that I have a locked bootloader?
I have been advised by Samsung that I am unable to downgrade? (I assume you can if you trip Knox)
Any help would be greatly appreciated! I haven't had a properly working phone since Boxing day
Thanks heaps
4g/LTE not working on N920I
Same here:
LTE was working fine on my N920I out of the box, but suddenly I observed that its only connecting 3G or 2G but not 4G. I thought that it may be custom rom issue.
I have installed Australia fimware through Samsung Kies. But it did not work.
Now I have manually installed Singapore firmware through ODIN
I have cleared internal storage and factory reset the phone
Upon forcing 4G only mode, the phone does not get signals and gets hot
I have tried inserting my sim to S7 and it quickly got connected to 4G, but 3G does not get connected to my phone
I have also contacted my carrier and they say everything is working fine
I have checked APN settings with carrier as well
I dont know what to do. Does this mean that my phone has some modem hardware issue which has broken modem due to overheat or bad code or something.
yurmuki said:
Same here:
LTE was working fine on my N920I out of the box, but suddenly I observed that its only connecting 3G or 2G but not 4G. I thought that it may be custom rom issue.
I have installed Australia fimware through Samsung Kies. But it did not work.
Now I have manually installed Singapore firmware through ODIN
I have cleared internal storage and factory reset the phone
Upon forcing 4G only mode, the phone does not get signals and gets hot
I have tried inserting my sim to S7 and it quickly got connected to 4G, but 3G does not get connected to my phone
I have also contacted my carrier and they say everything is working fine
I have checked APN settings with carrier as well
I dont know what to do. Does this mean that my phone has some modem hardware issue which has broken modem due to overheat or bad code or something.
Click to expand...
Click to collapse
Not possible since the S7 worked! Sounds like you need a new SIM card that's all.. Or you can try changing the settings again by going to Settings>Mobile Network>Network Mode and see what it's on..
MrMike2182 said:
Not possible since the S7 worked! Sounds like you need a new SIM card that's all.. Or you can try changing the settings again by going to Settings>Mobile Network>Network Mode and see what it's on..
Click to expand...
Click to collapse
I have changed Network Mode to 2G only, 3G only, 3g/2G (auto connect), LTE/3G/2G (auto connect) modes one by one after your suggestion but phone is only working on 2G and 3G not LTE.
Earlier I was having N920IDVU2BPG3_N920IXSA2BPG3_N920IDVU2BPG3_HOME.tar firmware but now since I have installed the latest N920IDVU3BPL2_N920IXSA3BPL2_N920IDVU3BPL2_HOME.tar so now I cannot go back to N920IDVU2BPG3 anymore and I get error:
sw rev check fail device 3 binary 2 in odin.
Does this has anything to do with firmware or my Modem chip is faulty due to overheat or anything?
yurmuki said:
Same here:
LTE was working fine on my N920I out of the box, but suddenly I observed that its only connecting 3G or 2G but not 4G. I thought that it may be custom rom issue.
I have installed Australia fimware through Samsung Kies. But it did not work.
Now I have manually installed Singapore firmware through ODIN
I have cleared internal storage and factory reset the phone
Upon forcing 4G only mode, the phone does not get signals and gets hot
I have tried inserting my sim to S7 and it quickly got connected to 4G, but 3G does not get connected to my phone
I have also contacted my carrier and they say everything is working fine
I have checked APN settings with carrier as well
I dont know what to do. Does this mean that my phone has some modem hardware issue which has broken modem due to overheat or bad code or something.
Click to expand...
Click to collapse
Hello,
same thing happened with my 9208 duos...
it happened some 3 weeks ago and only happened after my phone downloaded some updates..
carrier, sim all is good... issue is with phone software... and forcing it on lte only ends up having no signals..
Biggest prob is that it aint allowing to downgrade to another firmware with odin even...
ps. i dont think overheating of modem would restrict us to H & H+... if it was fried i guess there wont be any data at all...
if you are able to find a solution dont forget to let me know...
thanks
Umar
Hello, I''''ve a Galaxy Note5 N920I which wasn''''t bought from Saudi Arabia. My phone doesn''''t connect to 4G at all and at best even if it connects to 3G the connection is pretty much slow, even the Dial-Up calls are not stable and _quotlaggy_quot. I''''ve noticed that whenever I change the data connection to 4G network the device gets considerably hot at the power button side. All of this happened suddenly without any prompt about 3 days ago... I''''ve already tried changing the SIM card and testing it on other mobiles and the SIM worked just fine, also tried to change the APN and network settings but nothing worked. I am really concerned about the idea that the device might explode at any moment.
I have the same problem, my device N920I which I didn't buy from Saudi Arabia but I live there. Samsung S.A didn't help me out but rather than that they told me to contact with Samsung's branch in the country I bought the device from.
At the current situation, I have no choice other than waiting the device to explode maybe.
I regret that I didn't choose Apple's iPhone actually, as they would help me out without such irresponsibility.
Anyway, I am waiting for your assistance.
Any updates on this issue its getting worse day by day! Its summer here and i cant even touch my phone its becoming so hot.

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