Hi. My Galaxy S3 i9300 drops network connection from time to time for no reason. I have a full coverage in the city, all the signal bars are full, however it drops the signal sometimes and reconnects again. That's very annoying while talking on the phone. What I tried so far:
Clear cache
Hard reset
Changed to another custom stock rom
Installed another kernel and modem driver
All these makes me think that it's a hardware issue. Anyone who knows what it might be and how can I fix it? I have a hot air gun and I am able to replace parts if one knows which part might be faulty on the motherboard. Thanks!
*#*#4636#*#* and change to gsm only (mobile network will not work, changes work untill reboot). Use that if johnny_GSR post dont work for you.
Hello, i lost my antenna signal and i can´t get it back. I´m using CM13 snapshot 20.08.
Yesterday all was working fine but now the signal is lost. I reinstalled the rom clean but still the same problem. Any indears what can be the problem?
johnny_GSR said:
Your baseband version is ok or unknown? Maybe you need to reflash only modem
Click to expand...
Click to collapse
yesterday all was working and over the night the signal is lost. can it be that´s a hardware issue?
johnny_GSR said:
Can be hardware issue, but check baseband if is unknown to be sure
Click to expand...
Click to collapse
i checked and baseband isn´t unkown. Thanks for your reply. I think it´s a hardware defect.
Related
Hi there,
Since a few days, I've got a serious problem with my SGS2, it randomly loss any networks, saying that the flight mode is on. I tried to flash with another firmware ( stock KE7) it change nothing.
Any idea?
This is a firmware issue with the modem. Mine did the same thing. KE7 modem is horrible. I flashed to KF2 modem and I don't have this problem anymore.
Sent from my GT-I9100 using XDA Premium App
i believe this is related to the network itself. for my 2 other phones before, whenever i am AUTO network Mode, many callers used to call me reporting 'My mobile was off'... also with S2 the same issue.
i switched to GSM mode only, LOSING my NETWORK Data SPEED, for this ..
i hope future firmware can solve this with as suggested above, Good RADIOS....
The problem is that i've already tested with another provider's simcard and i've got the same issue. I tried with some firmware (stock KE2, KE7, KF1, Litening 1.4) but it change nothing. I'm from france with 'Virgin" provider if this can help.
Leckmee said:
The problem is that i've already tested with another provider's simcard and i've got the same issue. I tried with some firmware (stock KE2, KE7, KF1, Litening 1.4) but it change nothing. I'm from france with 'Virgin" provider if this can help.
Click to expand...
Click to collapse
lets try to find solution together... i am totally on different network, Etisalat of UAE.
up to now, going to GSM Mode solves this issue but i loose "fast speed network"
I tried GSM Mode only but the issue is still the same.
Actually i'm on:
PDA: I9100XWKE7
PHONE: I9100XXKE4
CSC: I9100XEUKD1
Leckmee said:
I tried GSM Mode only but the issue is still the same.
Actually i'm on:
PDA: I9100XWKE7
PHONE: I9100XXKE4
CSC: I9100XEUKD1
Click to expand...
Click to collapse
i am currently on the same build... in fact i tried all previous builds and even KF1 & KF4 but all were the same
I have this problem with my WiFi network.
The title on this thread doesnt say which kind of network you are talking about.
Data network and phone, wifi network works perfectly.
hazem77 said:
i believe this is related to the network itself. for my 2 other phones before, whenever i am AUTO network Mode, many callers used to call me reporting 'My mobile was off'... also with S2 the same issue.
i switched to GSM mode only, LOSING my NETWORK Data SPEED, for this ..
i hope future firmware can solve this with as suggested above, Good RADIOS....
Click to expand...
Click to collapse
I'm on Orange UK and that happens to me quite often. It's something to do with the network and how it handles the switch from gsm to udma(I think, anyway). Sometimes the network doesn't fully recognize you've switched from one type to the other and reports your phone to be offline. It doesn't usually last long but if someone tries to call me during that time then I'll get a text message when the network catches up to tell me I've missed a call.
DVC1985 said:
I'm on Orange UK and that happens to me quite often. It's something to do with the network and how it handles the switch from gsm to udma(I think, anyway). Sometimes the network doesn't fully recognize you've switched from one type to the other and reports your phone to be offline. It doesn't usually last long but if someone tries to call me during that time then I'll get a text message when the network catches up to tell me I've missed a call.
Click to expand...
Click to collapse
exactly... thats what happens to me too. what do you think is the solution?
What is even worse is sometimes in the middle of a conversation it goes to flight mode!!!!!!!!!!!!!!!!
hazem77 said:
exactly... thats what happens to me too. what do you think is the solution?
Click to expand...
Click to collapse
I don't think the problem can be fixed on the user end. I had the same issues with a Nokia N80 and N97 mini before I switched to the SGS2. It's apparently a common problem that all networks sometimes have and the only way it'll ever really be fixed is if the networks improve how they handle the switch.
I think it also depends on where you live. If you get a constantly good 3G/H signal then in theory the phone should hardly ever need to switch to GSM mode, but if you live in an area where the signal is not so strong then it might switch more often which will cause the problem to be more severe.
You could of course try setting the phone to WCDMA only which will give you good speeds, but then if you drop out of 3G range you'll lose the ability to make & receive calls anyway. It unfortunately seems like a lose/lose situation.
As for the flight mode issue, I really have no clue what is causing that. Have you tried hard resetting and/or flashing new firmware?
hazem77 said:
What is even worse is sometimes in the middle of a conversation it goes to flight mode!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
Change your phone..
I had the same problem on my first SGS2..everytime when gsm/wcdma auto is selected..phone randomly looses internet connection and radio switches off. In gsm only mode..everything is fine. Got my second SGS2 and phone is perfect..no loss of data connection even in the worst coverage area..
You can read "serious issue on 3g" thread in the general forum and see if you are suffering same symptoms
Sent from my GT-I9100 using Tapatalk
DVC1985 said:
You could of course try setting the phone to WCDMA only which will give you good speeds, but then if you drop out of 3G range you'll lose the ability to make & receive calls anyway. It unfortunately seems like a lose/lose situation.
Click to expand...
Click to collapse
yeaa... thats what i am doing right now and it is working better...
...
@Iznee
i dont think changing the phone might be the issue, i had the same issue on IP4... it might be solved with future radios/ roms...
HI,
i have a SGS 3 i9300 that had a bad EFS folder and it wouldn't connect to the network. I was fully aware of of the ramifications and issues of a bad EFS folder so i had it repaired from a service center. The Problem is that even though my IMEI and SN are fully restored( i have flashed multiple roms and they remain intact) I still have no signal and cant connect to the network. Is it possible that the EFS is still a problem or maybe is it a hardware issue? Anyway i can tell?
the phone keeps showing no signal symbol most of the time with or without a SIM card inserted. Also i have tried ariza patch with android 4.1.1
and android 4.0.4 (ariza patch 0.5)
Thank you in advance for all your inputs ,
Erind
No wrong IMEI .Or IMEI blocked by a network
EFS
Wrong modem for network
Wrong CSC for network.
Are the stock answers to network problems .
jje
JJEgan said:
No wrong IMEI .Or IMEI blocked by a network
EFS
Wrong modem for network
Wrong CSC for network.
Are the stock answers to network problems .
jje
Click to expand...
Click to collapse
Well i am going to try i9300XXELLA firmware since a friend of mine has it and its working with the same carrier i have. One question though will this firmware flashing take care of CSC too? or do i have to flash it separately through some other means
Thanks
Erind said:
Well i am going to try i9300XXELLA firmware since a friend of mine has it and its working with the same carrier i have. One question though will this firmware flashing take care of CSC too? or do i have to flash it separately through some other means
Thanks
Click to expand...
Click to collapse
Depends upon what CSC is in the firmware .
jje
Solved! (kinda)
i installed XXELLA stock rom and than patched with ARIZA V0.5 and there where no apparent changes however this time i had no reception literally no bars just the no coverage sign. Than while i was having a coffee under a cell tower of my operator :cyclops: i had full bars and the phone worked.
Now since it will not work more than 60 feet away from the tower is it safe to say that i have an hardware issue right guys?
Erind said:
i installed XXELLA stock rom and than patched with ARIZA V0.5 and there where no apparent changes however this time i had no reception literally no bars just the no coverage sign. Than while i was having a coffee under a cell tower of my operator :cyclops: i had full bars and the phone worked.
Now since it will not work more than 60 feet away from the tower is it safe to say that i have an hardware issue right guys?
Click to expand...
Click to collapse
Jup. Hardware failure.
Gesendet von meinem GT-I9001 mit Tapatalk 2
XeLLaR* said:
Jup. Hardware failure.
Gesendet von meinem GT-I9001 mit Tapatalk 2
Click to expand...
Click to collapse
Is the fixing of this particular antenna issue expensive? anyone has any experience with this (warranty is loooong gone for me )
when you have warranty you send it to Samsung
i have dropped the phone so there is no warranty on it and that is final.However im really hoping is not a change the whole main-board kinda issue
cause than this phone is to be sold for parts
Checklist .
Is IMEI same as under the battery .
Is your baseband / modem same as for your network .
Have you tried a different Sim
Have you entered the mobile network APN settings .
All yes then possible hardware / antenna loose on connector search for TEARDOWN SGS3 to locate .
jje
Erind said:
i have dropped the phone so there is no warranty on it and that is final.However im really hoping is not a change the whole main-board kinda issue
cause than this phone is to be sold for parts
Click to expand...
Click to collapse
all you need is in the picture in attachment
(I was in the same situation and someone saved me the same)
do not ask me how he did it I did not know, but I know that has used these programs
cheers
JJEgan said:
Checklist .
Is IMEI same as under the battery .
Is your baseband / modem same as for your network .
Have you tried a different Sim
Have you entered the mobile network APN settings .
All yes then possible hardware / antenna loose on connector search for TEARDOWN SGS3 to locate .
jje
Click to expand...
Click to collapse
everything is ok software wise well nearly everything since im using ariza patch , I made the phone work and all but if im away from the cell tower for more than a few meters the icon changes to no coverage Now i have been looking to teardowns for a while now and the Antenna seems to be part of the main PCB my only chance is that something is loose like you said .
Thanks guys for your inputs hopefully when i get home ill be able to fix it with some handy work and my soldering gun ( or most likely set the thing on fire :silly: )
Hi all, I am having a problem with signal strenght on my i9100. When the phone is on a table the signal is about 3 lines, at 70% of strenght but when i hold it in my hand it looses reception and it says only emergency calls, I've tried everything, changing the software, official/custom, tried different SIM card, trying 3G/GSM, nothing, I've even changed the antenna, same problem again, how can it be solved? Can it be a problem in motherboard or?
The problem is just like on example video.
Please help!
http://www.youtube.com/watch?v=nMNAruV7Qbs
lsalamun said:
Hi all, I am having a problem with signal strenght on my i9100. When the phone is on a table the signal is about 3 lines, at 70% of strenght but when i hold it in my hand it looses reception and it says only emergency calls, I've tried everything, changing the software, official/custom, tried different SIM card, trying 3G/GSM, nothing, I've even changed the antenna, same problem again, how can it be solved? Can it be a problem in motherboard or?
The problem is just like on example video.
Please help!
http://www.youtube.com/watch?v=nMNAruV7Qbs
Click to expand...
Click to collapse
Try to change modem.
GamingDj said:
Try to change modem.
Click to expand...
Click to collapse
My phone is locked on to VIP Croatia network, I've unlocked my phone using paid GalaxSim unlock on T-Mobile Croatia, the signal was weak just like on VIP network, then i flashed I9100XWLSD_I9100CROLSB_CRO which is for T-Mobile Croatia and signal was also weak, then i flashed I9100XWLSD_I9100VIPLSC_VIP for VIP network and signal is also weak, I tried both, VIP and T-Mobile SIM cards, on both of them is signal weak.
Could you please recommend me a modem, because I'm new to S2 and don't know which modem will be good.
Tnx in advance!
Nelp4
theunderling said:
Nelp4
Click to expand...
Click to collapse
Ok, tnx, I will try to flash this modem, and will call back the results.
Tnx in advance!
Or just search for veyka modem list as theres loads there.
None of that helped, I'll try to change the RT module, the one with micro usb, maybe is something on it making problem, i have a spare from other i9100 on wich is microusb not working but antena works so I'll try with that and report.
my s3 is saying "not registered on network " when i try to call someone ,is there a way of fixing this ??
blitz100 said:
my s3 is saying "not registered on network " when i try to call someone ,is there a way of fixing this ??
Click to expand...
Click to collapse
Could it be network locked?
Sent from my HTC One using Tapatalk 4 Beta
squabbi said:
Could it be network locked?
Sent from my HTC One using Tapatalk 4 Beta
Click to expand...
Click to collapse
its not locked it worked with any sim before
If you want help you must provide relevant info
blitz100 said:
my s3 is saying "not registered on network " when i try to call someone ,is there a way of fixing this ??
Click to expand...
Click to collapse
If you want help you must provide relevant info - and also be able to think a little for yourself!
Have you done anything special to the phone before that? Like programming a ROM in Odin?
Is the IMEI in place?
im new to the s3 and dont have a clue about what anything is. ive never done anything to it.....
xclub_101 said:
If you want help you must provide relevant info - and also be able to think a little for yourself!
Have you done anything special to the phone before that? Like programming a ROM in Odin?
Click to expand...
Click to collapse
Hi I think this may be an issue in some parts of the world, but not all. I have regular signal cuts like this in South Africa, but generally only when I'm in an area with weak cell signal. My wife also has a S3 LTE and gets the same signal cuts. When it happens I reboot my phone and it's fine again. I even went back to stock to test and it still happens on stock, just as it did when I first got the phone in November 2012.
I've been on AOSP roms the last few months and then it was fine, no signal cuts. Same with my wife's phone. Now I'm back on stock and the signal cuts are back, albeit not so often anymore, maybe one or two a week. I'm going to run stock for a few weeks and see if the issue persists.
What modem are you using? Have you changed it or is it the same modem that came with your phone?
quantumtraveler said:
Hi I think this may be an issue in some parts of the world, but not all. I have regular signal cuts like this in South Africa, but generally only when I'm in an area with weak cell signal. My wife also has a S3 LTE and gets the same signal cuts. When it happens I reboot my phone and it's fine again. I even went back to stock to test and it still happens on stock, just as it did when I first got the phone in November 2012.
I've been on AOSP roms the last few months and then it was fine, no signal cuts. Same with my wife's phone. Now I'm back on stock and the signal cuts are back, albeit not so often anymore, maybe one or two a week. I'm going to run stock for a few weeks and see if the issue persists.
What modem are you using? Have you changed it or is it the same modem that came with your phone?
Click to expand...
Click to collapse
the thing is it has worked perfectly fine before and randomly messed up .what is a modem
blitz100 said:
the thing is it has worked perfectly fine before and randomly messed up .what is a modem
Click to expand...
Click to collapse
a MODEM IS A MODULATOR DEMODULATOR . basically the bit that connects to the network .
Modem = Baseband .
\Suggest one factory reset two if that fails service centre and three read the basic faqs and guides .
jje
you need to search before you post. also, answer my question for further troubleshooting
Hi . does anybody had problem with weak and frequently gsm signal drop?
Doesent matter 3g 2g network ?
Any soft solution or is it hw failure?
bobans1983 said:
Hi . does anybody had problem with weak and frequently gsm signal drop?
Doesent matter 3g 2g network ?
Any soft solution or is it hw failure?
Click to expand...
Click to collapse
What is your base bad version/radio modem? What version of android are you on, are you on a custom rom or kernel, are you rooted, are you completely stock form the manufacture and who is your cellular provider?
Go to your settings and then to about phone and you can take a screen shot and upload it. or type your results?
Make sure to delete from the screen shot your mac address you DO not want or need to share that with any one.
Has your phone been dropped, damaged or water damage. are you the original owner or was the phone used before you got it?
I was having issues on mine after installing CM12.1 (android 5.1.x) while using a GSM carrier (t-mobile); in my case it was calls not ringing in, and inability to end a call. If you're not on a 5..x rom, my solution probably won't help (and may cause more issues). My solution is here:
http://forum.xda-developers.com/showpost.php?p=63684781&postcount=353