hi. I have a samsung galaxy s2 i9100 (for now 3 and half years)
i am in the uk with 3 network
for some time i have been experiencing loss of network all of a sudden thoughout the day
specially if i tether my phone via wireless
i have changed its software (rom and modem) and I am still experiencing this loss of network
in order to get network again I must reboot the phone, it is the only way of getting it back working
I travel a lot to Portugal and take the phone but I do not seem to have experienced this there
tough i dont tether there nor i use the connection for data
currently i am using a slim rom 4.2.2 build 8 official
the baseband is i9100xxLs9
any toughts about what is happening? do you think the phone is to blame? software? hardware? sim card?
Modem is what the culprit.
Change to other modem and see
Sent from my GT-I9100 using Tapatalk 2
corruptionfreeindia said:
Modem is what the culprit.
Change to other modem and see
Sent from my GT-I9100 using Tapatalk 2
Click to expand...
Click to collapse
Hi! Thanks for the reply!
I already tried that. I reflashed and put a new modem aswell.
It improved the simptoms but they still persist
Any specific modem that you think i should try?
Some times my phone freaks out and just gets corrupt and i have to reflash
Do you think it might be going to die? Maybe replace it?
Best regards
Flash This Firmware
cromalhao said:
hi. I have a samsung galaxy s2 i9100 (for now 3 and half years)
i am in the uk with 3 network
for some time i have been experiencing loss of network all of a sudden thoughout the day
specially if i tether my phone via wireless
i have changed its software (rom and modem) and I am still experiencing this loss of network
in order to get network again I must reboot the phone, it is the only way of getting it back working
I travel a lot to Portugal and take the phone but I do not seem to have experienced this there
tough i dont tether there nor i use the connection for data
currently i am using a slim rom 4.2.2 build 8 official
the baseband is i9100xxLs9
any toughts about what is happening? do you think the phone is to blame? software? hardware? sim card?
Click to expand...
Click to collapse
Flash with this firmware ,hope will help
I9100XXLPQ_I9100OXALPQ_I9100XXLPQ_HOME.tar
Put it on gsm mode which is also called 2g mode.
Monitor it if you still loose signal.
If so, then i would recommend you do a clean wipe, use any rom wipe script available and then install your rom back
Sent from my GT-I9100 using xda premium
Related
Received my SGS2 on 29th June and ever since it start having emergency call syndrome (out of blue not receiving any network signal).only after reset, it regain signal and same story goes on till date.
To overcome this prob,i tried these:
- factory reset 3 times
- manually choose telco/network carrier
- update/flash firmware (stock XWKF1 -> XWKF3)
so for these only reduce problem's rate to occur.PLease,help anyone?
Is your sim card active ?
Hi
I have the same problem as yours (i thought i am the only one having this)...out of the blue the phone changes to the emergency calls Only status....
it is very annoying specially when you are expecting an important phone call and you discover that the phone cannot receive calls
it became a habit of mine to keep checking my phone every once and a while, and when spotted i restart my phone and this brings the phone back to normal (Normal for a day or two of course).
Can anybody help with this?
SGS2 GT-I9100, Android: 2.3.3, Build: JHKG2
First of all I would download a newer firmware. If that doesn't fix it you should probably just return it to Samsung for replacement/repair.
Actually i have flashed this Israeli ROM (it is an Orange official but leaked ROM) about a month or so and it supports Arabic, English & Russian (exactly what i need) that i have no complains about so far except this emergency Calls issue and i am not so fund of rooting etc so i don't know where i can find another ROM (official not cooked ) that have the same languages supported.
Sent from my GT-I9100 using XDA App
What is your signal strength when it changes to emergency only? Mine does that during very weak signal, I found it's because it can only receive GPRS singal which is from another carrier when my own (HSPA) can't establish connection.
jzmtl said:
What is your signal strength when it changes to emergency only? Mine does that during very weak signal, I found it's because it can only receive GPRS singal which is from another carrier when my own (HSPA) can't establish connection.
Click to expand...
Click to collapse
frankly i didn't check or notice such thing, but the moment i installed my latest ROM (GB/JHKG2) i have noticed that the signal strength is very week especially indoors.
thinking off and analyzing this situation i have a confident opinion that the problem i am facing is related to the ROM i am using (GB/JHKG2).
i am thinking of flashing a different Kernel to this ROM and see what will happen
Mo.shishani said:
frankly i didn't check or notice such thing, but the moment i installed my latest ROM (GB/JHKG2) i have noticed that the signal strength is very week especially indoors.
thinking off and analyzing this situation i have a confident opinion that the problem i am facing is related to the ROM i am using (GB/JHKG2).
i am thinking of flashing a different Kernel to this ROM and see what will happen
Click to expand...
Click to collapse
When you installed a different rom did you flash back to your original telcos baseband? This makes an enormous difference to signal strength.
Sent from my GT-I9100 using xda premium
LuvinN1 said:
did you flash back to your original telcos baseband? This makes an enormous difference to signal strength.
Click to expand...
Click to collapse
sorry LuvinN1 i am new to such terminologies and i have no idea about what you mean of telcos base band
I have flashed another kernel and guess what? ....the problem is solved ;-)
Sent from my GT-I9100 using XDA App
Hi guys I got a big problem, hope u can help.
I have this phone for a couple month already, when I was still running stock I discovered my cell phone would tell me I got no signal. Turning on air plane mode and then turning it off didn't help to get back signal. So I had to turn off the phone and turn it back on to get back my signal. Problem is I never know when it happens until my wife asks me y my cell phone is switched off. So I went ahead rooting it and I flashed a rom on it. But problem isn't gone. I still lose signal but on this rom it shows me full bars, only cannot make phone calls,SMS,and gprs. Tells me no network or no sim card is inserted. I always have to turn off and turn it back on. Now that it is rooted with whatever firmware I can't bring it to Samsung store to fix
please any suggestions?
Sent from my GT-I9100 using XDA App
Maybe you could try another sim card. Just a thought
Sent from my GT-I9100 using xda premium
Happened to me just like u describe it , i flashed many Basebands and i found that XXKI4 modem solved my problem maybe you should try too
Sent from my GT-I9100 using xda premium
Sounds more like a carrier problem. I'd ring them. Check your APN settings too.
Hi,
I have similar issues. Doesn't matter where I am and how good the network coverage is on all other phones around, my SGS2 keeps changing the coverage icon, from 1 to 4 "sticks" of indicator, or to no coverage state (crossed circle icon).
Sometimes the wireless is not working also, or juts gets very weak signal, though the signal is good on other devices near by.
When I try to turn data network (by pressing the power button and selecting data network activated from the pop up) sometimes it's not even showing the data network icon in the system bar (top of the screen), it's like being disabled data network or something.
I can answer a call and stay on conversation for no longer than a minute, then the signal goes dead and the phone just freezes, when I try to tap red button to end the call - no reaction, I have to turn the phone off.
When I try to make a call it just says "dialling" for ages with no result and eventually the phone freezes, so I have to turn it off and back on again.
Sometimes it turns off itself though the battery was showing almost full icon.
I went to O2 store, they gave me new SIM card, but it didn't help, so it's not a SIM issue.
I did a full (hard) reset - no help.
The guy from the O2 store told me, that I can root my phone, and I will not loose the warranty (I purchased the phone only one month ago), only thing I need to do is to revert it back to original state before bringing it (in case of hardware replacement).
But if it is not a software issue at all, so what's the point of rooting and having all the hustle, then reverting, etc... Can there be some hardware issues? I don't know: antenna, RAM, CPU, whatever???
I hope I've explained everything clearly enough. Any ideas would be appreciated. Thanks in advance.
What firmware are you on have you tried to Upgrade via KIES .
Rooting will void warranty and will also increase the custom rom counter from zero . Yes they can be reset in most cases .
Rooting will not fix anything at all .
Network is first check are you getting problems at all locations .
When in the O2 store did they check the signal ???
Choice return to service centre
Flash a stock Samsung firmware via XDA possible to also try a different modem via XDA .
None of these will fix hardware problem .
Personally i would factory reset the phone and check all the network details are correct on the phone then return to service .
jje
burimii said:
Happened to me just like u describe it , i flashed many Basebands and i found that XXKI4 modem solved my problem maybe you should try too
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Gonna give this a shot ty
Sent from my GT-I9100 using XDA App
when you have this problem check if you have an imei (*#06#) if the response is empty then you have to reflash...
Hi all again,
after posting my previous post I phoned my friend during a lunch break at work. We had a quite long conversation and the quality was perfect. Then on my way home I turned on data network and enabled GPS (LOL), then launched navigation app and it took me home without any bugs (I know my way home though I did it only for phone testing).
Now back home, sitting in my room and my SGS2 starts to fool around again: unable to turn on data network, poor wireless signal (but it's good on my PC), the network coverage icon turns into "no signal" state and comes back to normal again all by itself.
I will definitely test my phone again tomorrow on my way to work and in the office. But it seems like there's something wrong with the place that I live. I've moved in recently and must admit, that all my problems with the phone started only then. And I didn't noticed any bugs while at work or anywhere down town.
Meanwhile is there any way to scan/check the area around my flat? Maybe there's something wrong with the in house router, or maybe to many routers in surrounding flats, or some other equipment/hardware things messing up, or just a mysterious house blocking O2 network and hacking the phone LOL??
The only strange thing is that I'm having not just a network/coverage/wireless issues, but the phone freezes, battery full-empty-full-empty status randomly, etc...
BTW, my details:
Model: GT-I9100 (not a I9100G)
PDA: XWKJ1
PHONE: XXKI4
CSC: O2UKJ1
Android version: 2.3.5
Updated via KIES about a month ago, was working good until now. KIES says that at the moment I have the latest firmware.
burimii said:
Happened to me just like u describe it , i flashed many Basebands and i found that XXKI4 modem solved my problem maybe you should try too
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Lol I was just about to download modem xxki4 when i found out i was running checkrom(ROM) wish XXKI4 modem(baseband) haha
ya so im running this modem already with the above problems so this isnt a solution
any more suggestions pls?
rothariger said:
when you have this problem check if you have an imei (*#06#) if the response is empty then you have to reflash...
Click to expand...
Click to collapse
I did that and got a response so I guess I don't need to reflash thx
Sent from my GT-I9100 using XDA App
therealnoob said:
I did that and got a response so I guess I don't need to reflash thx
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
Its a question of has it the original IMEI .
jje
burimii said:
Happened to me just like u describe it , i flashed many Basebands and i found that XXKI4 modem solved my problem maybe you should try too
Sent from my GT-I9100 using xda premium
Click to expand...
Click to collapse
Alright I tried ki4 same problem, ki1 and some other I don't remember with the same problem and am rite now on ke7 for a week with no signal lost so far wohoo, and am on checkrom. 4 BTW so switching modems so easy, got its own kitchen application
just for info I'm in China using China mobile
Sent from my GT-I9100 using XDA App
therealnoob said:
Alright I tried ki4 same problem, ki1 and some other I don't remember with the same problem and am rite now on ke7 for a week with no signal lost so far wohoo, and am on checkrom. 4 BTW so switching modems so easy, got its own kitchen application
just for info I'm in China using China mobile
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
false enthusiasm....
let me list the modems ive tried so far
xxki4, nefk2,xxki3,nekd5,xxki1,xxke7,xxkg3(on this one right now since morning),xxkh3 and xxkl1
6 more modems on the list havent tried, wish me GL
Hi there everyone.
I have a Samsung Galaxy SII. I live in Australia, have an unbranded phone, and am currently with TPG as my phone provider.
I have been experiencing these problems for a long time, and after trying to figure out what's wrong with it, it's time to ask for help. Haha.
These problems started after I flashed a new modem after installing a ROM. Previous to flashing, the reception had been fine. After flashing the ROM, and not the modem, my reception was still as good as it was when I first received the phone. However, after flashing a new modem, the reception dropped significally. Where my brother also with a i9100 could receive full bars of HSPA/3G, I could only receive 2/3 bars of G. Where he would have 3 bars of G (in our house, it has this stupid insulation that really nerfs reception), I would receive absolutely no reception.
I have tried countless modems (pretty much ever modem since K13, testing for reception, but never have much luck, maybe a 1 bar fluctuation up/down).
Do you have any ideas what could be wrong? How I could fix it? Thanks very much.
find the modem your brother have ,download it from the intratech and flash it
have you tried KE7?
I got a good expereance with this on Data speed, but I dont know about reception strenght.
go through discussions of this thread http://forum.xda-developers.com/showthread.php?t=1131950
He hasn't updated for a while, and is using the K13 modem. I have tried it, along with the K14, and KE7 already.
do a factory reset without the sim and sd card....
I tried factory resetting without the SD and Sim card, but it still didn't work.
Any other ideas? Haha.
Do you have i9100 or i9100t
Sent from my GT-I9100 using xda premium
The international i9100. The phone was originally bought from Vodafone, then unlocked with a code.
Mines vodafone australia and its a i9100t.have you tryed a t modem
Sent from my GT-I9100 using xda premium
I haven't, maybe that's the next thing I'll try. But does your box say i9100, or i9100t? Mine just says i9100. Haha.
Edit: Omggg I love you. Hahaha. I flashed a T-modem, and now I'm getting full reception. Thanks somuch!
Under the battery.if it does try the vodafone modem
Sent from my GT-I9100 using xda premium
Awsome.here is a few thing you can try for better reception *#9900# disable fast dormancy.
*#*#4636#*#* select phone info then run ping .scroll down press bottom left touch key select radio band then select automatic.
Sent from my GT-I9100 using xda premium
Hi,
Someone please help me.
I get unregistered by the network (Vodafone, Pune) everytime. When I need to call, I can manually select the network & for the time of the call, the network remains. But as soon as I keep my phone idle, it loses signal strength and finally there's so signal at all!
The series of events leading to this:
1. I was on CM9 Stable when I went to Germany.
2. Then I downloaded DiliDroid ROM and flashed it in Germany (was using an O2 local Germany sim card when I flashed)
3. Then I came back to India & as I lost my old Vodafone SIM in Germany, applied for a duplicate card & got it.
4. Then a couple of days went okay. Then suddenly everyone started to complain that I'm unreachable on my phone.
5. I flashed new modems (tried KI4 etc.). Did a full wipe, flashed CM10 JB but the problem remained.
Then I flashed official Stock or Nordic countries and finally I flashed official Indian Stock ROM.
And everytime I did a full wipe and installed. I also changed my CSC to INU (just in case that was conflicting)
I've also inserted a different SIM card on my phone and it's still the same. So it's not a SIM problem.
Currently I'm on DDLPA modem (that comes with official Indian stock ROM)
Please guide me. What should I do.
Apn?
Sent from my GT-I9100 using xda premium
I suppose it's the modem. Don't judge a modem after some hours of usage, a modem needs 2/3 days to settle.
I had the same issue some months ago. Firstly I changed my baseband with one matching my network operator but still the problem remained. After trying the KI3, KI4, LPX, I found out that KH3 was the best for me.
gb.yolo said:
I suppose it's the modem. Don't judge a modem after some hours of usage, a modem needs 2/3 days to settle.
I had the same issue some months ago. Firstly I changed my baseband with one matching my network operator but still the problem remained. After trying the KI3, KI4, LPX, I found out that KH3 was the best for me.
Click to expand...
Click to collapse
But I don't get even a single bar of signal. And my phone remains unreachable. Please find an updated issue log here: http://forum.xda-developers.com/showthread.php?p=31464929#post31464929
gb.yolo said:
a modem needs 2/3 days to settle
Click to expand...
Click to collapse
WTF? Modem connects to the network in less than 5 seconds.
przemcio510 said:
WTF? Modem connects to the network in less than 5 seconds.
Click to expand...
Click to collapse
Yes modem start working in 5 seconds but needs at least 50 hrs to settle because u move here and there....in this time modem studying your signal strength etc etc and after some time of usage it gives u better result accordingly to your need
Sent from Galaxy S2 using Cyanogenmod 9
Nishu_gamer said:
Yes modem start working in 5 seconds but needs at least 50 hrs to settle because u move here and there....in this time modem studying your signal strength etc etc and after some time of usage it gives u better result accordingly to your need
Click to expand...
Click to collapse
I can't agree with you. Signal strength depends on distance between you and the cellular network transmitter and its power. Signal is signal.
Hi there,
I have a Samsung Galaxy S2. For some weeks now, it simply looses all internet connectivity over cellular networks (not over WiFi!). This seems to happen more often if I loose the connection to a wifi cell and it should be forced to make use of the cellular networks internet. One symptom is that the cellular network bars are still there (I can even make phone calls), however the E / 3G / H symbol disappears...
My current solution is to switch to airplane mode and back again. I so far tried a couple of different roms and modems, however none seem to solve my problem... Does anybody know how to fix this?
Thanks in advance!
Wolf
Wolf8 said:
Hi there,
I have a Samsung Galaxy S2. For some weeks now, it simply looses all internet connectivity over cellular networks (not over WiFi!). This seems to happen more often if I loose the connection to a wifi cell and it should be forced to make use of the cellular networks internet. One symptom is that the cellular network bars are still there (I can even make phone calls), however the E / 3G / H symbol disappears...
My current solution is to switch to airplane mode and back again. I so far tried a couple of different roms and modems, however none seem to solve my problem... Does anybody know how to fix this?
Thanks in advance!
Wolf
Click to expand...
Click to collapse
Give more info please...Phone Model,Kernel,ROM,Modem.Make a screenshot of settings.And I think you just simply lose signal.I have S2 too,and mine never loses connection.However,before I turn on the Data network,I have full signal(4 bars).After I turn it on,I only have 1-2 bars.So I think the 3G signal isn't strong enough.
Thanks for your answer.
I have tried different combinations of Resurrection Remix 3.1.1, 3.1.3, NeatRom Lite 4.7 and both Omega AOKP and AOSP releases, using also different kernels.
The strange thing is that i was on RR 3.1.1 for half a year now and never had a problem and it suddenly started a month ago, so its not just a signal loss - the S2 simply doesn't use cell-based internet. After experiencing the problem I started switching ROMs, always doing a full wipe and yesterday even a ROM wipe.
Today I switched to modem xxls8, before I was on a newer one (the ones which came with the corresponding roms) and am still evaluating if this changes anything.
I am currently evaluating if this is related to using WiFi or the phone also looses cell-based internet if I do not use WiFi at all.
Wolf8 said:
Thanks for your answer.
I have tried different combinations of Resurrection Remix 3.1.1, 3.1.3, NeatRom Lite 4.7 and both Omega AOKP and AOSP releases, using also different kernels.
The strange thing is that i was on RR 3.1.1 for half a year now and never had a problem and it suddenly started a month ago, so its not just a signal loss - the S2 simply doesn't use cell-based internet. After experiencing the problem I started switching ROMs, always doing a full wipe and yesterday even a ROM wipe.
Today I switched to modem xxls8, before I was on a newer one (the ones which came with the corresponding roms) and am still evaluating if this changes anything.
I am currently evaluating if this is related to using WiFi or the phone also looses cell-based internet if I do not use WiFi at all.
Click to expand...
Click to collapse
For me this does happen but it's specific to my network provider, all others work flawlessly. And usually in my case waiting a couple of minutes or restarting the phone gets it back working again. Try using an other sim and confirm whether it's your network provider's fault.
Sent from my GT-I9100 using xda app-developers app
Hi, I've the exact same problem, same sintoms. I have to reboot the phone to get data connection back when I'm not on WiFi.
I've tried changing the modem and the kernel but no luck.
I'm currently using Neat lite 4.7 with Apolo kernel 4.7, and I've unlocked the phone with galaxsim unlock 9 months ago and I've never had this kind of problems.
By the way, I don't use any kind of tasks killers.
Thanks
Enviado desde mi GT-I9100 usando Tapatalk 2
May be, the problem is with your sim card.
Отправлено с моего GT-I9100 через Tapatalk
uzb777 said:
May be, the problem is with your sim card.
Отправлено с моего GT-I9100 через Tapatalk
Click to expand...
Click to collapse
Thanks, but tried with different sim card with same results.