My galaxy S2 is dropping network signals. Where my S1 shows 4 signal-bars, S2 shows 1 or 0 bars for the same network. But when I start using my phone, it goes till 3 or even 4 bars. In sleep mode it doesn't catch any signals. That mean I cannot receive any calls/sms when my phone is locked.
When I take out my phone and unlock and start using it, it suddenly get a few signals and starts receiving pending sms.
I heard somewhere it could be a problem with my custom ROM. So, I've upgraded to Stock ROM version 4.0.4. But the problem is still there. Can anyone please help me fix this issue?
Thanks
Adil
The same problems I have. Lose signal network, and must reboot phone.
Sent from my GT-I9100 using xda premium
Sounds like hardware problem.
Try changing kernel and/or modem.
przemcio510 said:
Sounds like hardware problem.
Try changing kernel and/or modem.
Click to expand...
Click to collapse
Sorry for having very basic knowledge of Android. By changing kernel do you mean to try flashing some other ROM?
Previously I downloaded the ROM from: http://www.sammobile.com/firmware/?page=3&model=GT-I9100&pcode=OXA&os=1&type=1#firmware (I downloaded CSC: I9100OXALQB)
If you mean to change the ROM, can you please suggest me any other ROM?
Thanks
Adil
anyone ??
I really thought this forum is useful
adilshoukat said:
anyone ??
I really thought this forum is useful
Click to expand...
Click to collapse
The forum is useful. People helping you out aren't doing it for any commercial gain. They look around in their free time and help you solving your problems.
He said you may need to change your modem. Not your ROM. The best modem for you generally depends on your region. So search this forum for a thread detailing the modems for various regions, download the relevant one and flash it.
Sent from my GT-I9100 using xda app-developers app
adilshoukat said:
anyone ??
I really thought this forum is useful
Click to expand...
Click to collapse
That's really an unnecessary comment.
With that being said, have you changed your modem recently or at all?
Sent from my Nexus 7 using xda premium
kilometers4 said:
That's really an unnecessary comment.
With that being said, have you changed your modem recently or at all?
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
I did that comment because I've posted two problems and got no response. It seems no one looks at the questions at all.
I am not sure what you mean by modem. I bought this phone from KSA and I flashed a Poland ROM into it.
Do you think that would have changed the modem?
Yes it would have changed the modem. There is a modem thread here on XDA, find it and use Odin to flash them.
Sent from my GT-I9100 using xda app-developers app
themadba said:
Yes it would have changed the modem. There is a modem thread here on XDA, find it and use Odin to flash them.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
OK, can you please let me know how would I know that which ROM will suit my phone?
Do I have to keep flashing ROMs and see the results? Or is there some code in the ROM filename that can tell me that the ROM is good for the phones released in KSA ?
adilshoukat said:
OK, can you please let me know how would I know that which ROM will suit my phone?
Do I have to keep flashing ROMs and see the results? Or is there some code in the ROM filename that can tell me that the ROM is good for the phones released in KSA ?
Click to expand...
Click to collapse
Just flash the modem no need to install an entire rom just for signal issue as far as "suit my phone" u have to try different roms for that i suggest you should read a few threads on the site
I tried flashing Poland, UAE and PAK ROMs. But nothing worked. I still have the worst signal strength
Related
Hi.
Im having a little problem here.
If I want to flash a modem, do I have to find the same modem version as my firmware version?
As in, if my firmware version is XXKL3, do I have to find a modem which is XXKL3 so that they will be compatible or something.
Help will be greatly appreciated! Cheers!
As far as I'm aware, you can flash any sgs2 modem you like. Mine doesn't match my firmware.
Edit: in fact, there's a list of flashable modems thread around somewhere.
Sent from my GT-I9100 using xda premium
maplestoryps said:
Hi.
Im having a little problem here.
If I want to flash a modem, do I have to find the same modem version as my firmware version?
As in, if my firmware version is XXKL3, do I have to find a modem which is XXKL3 so that they will be compatible or something.
Help will be greatly appreciated! Cheers!
Click to expand...
Click to collapse
This thread here gives the link to all the shipped modems
http://forum.xda-developers.com/showthread.php?t=1131950
Flash any that suits you and your provider
ErnestMBE: Okay! I got it! Thanks alot!
digi_fort: Thank you very much too! The link you provided me really helps!
Really appreciate both of your help! ^.^
maplestoryps said:
ErnestMBE: Okay! I got it! Thanks alot!
digi_fort: Thank you very much too! The link you provided me really helps!
Really appreciate both of your help! ^.^
Click to expand...
Click to collapse
No Problemo mate that's what communities are for
digi_fort said:
No Problemo mate that's what communities are for
Click to expand...
Click to collapse
Exactly
Sent from my GT-I9100 using xda premium
Can modems be flashed on any kind of kernels? CF-Root, CM7 ?
Are modems made for different regions and carriers? For example I'm in Czech Republic on O2 ? What should be best ?
Yes. Modems are independent of kernel or rom.
Some modems do tend to work best with different carriers/networks, there are two ways you can find a modem that works well with your carrier/its network:-
1) Flash a bunch of modems until you find one that works well
2) Do a Google search & append XDA to your search terms; for example, SGS2 XDA modem Czech Republic. Use your imagination with the search terms.
Having said that, if the modem you're currently using gives you good connectivity/data speeds with the rom/kernel you're using at all locations/at all times of day (to rule out any problems that could possibly be caused by congestion on your carrier's network, etc), there's no need to go changing modems.
You only need to do so if you're having those consistent problems I mentioned.
Hi,
Will ask here:
What are currently most up to date and best modems? Ok I know there is no best modem but what are current modems that are giving best results for most users and otherwise behaving good in mean of performance and battery life?
Now I have xxkl1. Any better?
donno when last updated this thread, but lot of discussions are there :
http://forum.xda-developers.com/showthread.php?t=1131950
i am in india on vodafone network. rooted galaxy s II. persistant problem with data HSPA+ connectivity requiring me to reboot phone. which modem can i use? australia vodafone one? or they have other modems for india
Hi there, im using S3 and ive been curious about the signal quality (network / call) most of the time i see that I'm on "For Emergency Calls Only" on my notification. I didn't have this one when I was using HTC Desire.
I also tried to compare the signal side by side with HTC Desire and S3... It seems that S3 most of the time it shows "For Emergency Calls Only".
Any one here have the same experience?
Additional Note:
- I notice disabling Power Saving Mode makes my cellular/network signal stable at least (good for 2-3 days before going to "Emergency Calls Only"
- There are times that people cannot call/text (or delayed text messages) me. Even in Power Saving Mode Disabled.
- I have a stable Mobile Data/Internet connection, but people says that my cellphone is unreachable, but im connected on Mobile Data./Internet. Text Messages are received after turning off Mobile Data (all of them are delayed)
I hope someone could help me.
Something wrong .
Post has no details so lets guess.
Bad network
Wrong network connection set up by user or wrong CSC .
Modem not suitable for location flash another .
jje
Mine sucks too, usually 107dbm, only 1 bar. Thinking of flashing another modem.
XXLF2 maybe.
UK London Vodafone.
i see your from the PH. flash the xxlf5 modem and siyah kernel. it works best for me using sun network
JJEgan said:
Something wrong .
Post has no details so lets guess.
Bad network
Wrong network connection set up by user or wrong CSC .
Modem not suitable for location flash another .
jje
Click to expand...
Click to collapse
I dunno what kind of details.. hmm maybe ill post screenshots..
I dunno if its bad network.. my HTC Desire have signal and they're on the same network. My network is set on automatic.
Using Stock Rom (rooted)..
dybbuk68 said:
i see your from the PH. flash the xxlf5 modem and siyah kernel. it works best for me using sun network
Click to expand...
Click to collapse
Hi there! yes im from PH. Using Globe Telecoms.
What is XXLF5? I found its a modem..
What is SIYAH kernel? i read about it.. but i want a simple explanation what is it.
Where can i flash that XXLF5 and SIYAH kernel? does it really works?
sorry for the questions.. i was a HTC user going from samsung
randolph2000 said:
Hi there! yes im from PH. Using Globe Telecoms.
What is XXLF5? I found its a modem..
What is SIYAH kernel? i read about it.. but i want a simple explanation what is it.
Where can i flash that XXLF5 and SIYAH kernel? does it really works?
sorry for the questions.. i was a HTC user going from samsung
Click to expand...
Click to collapse
you can use search for details about kernals
http://dl.dropbox.com/u/19780267/Modems/modem_CWM_I9300XXLFB.zip
here is the link for the modem
download it
reboot into recovery and flash it
there's a link in my signature , click on that and you can anything you want for your s3
roms , kernals and modems
vegeta1 said:
you can use search for details about kernals
http://dl.dropbox.com/u/19780267/Modems/modem_CWM_I9300XXLFB.zip
here is the link for the modem
download it
reboot into recovery and flash it
there's a link in my signature , click on that and you can anything you want for your s3
roms , kernals and modems
Click to expand...
Click to collapse
i have a few questions:
if i flash this, my flash counter will activate right?
is this modem is like the "radio" thing in htc? same time if i flash this modem.. is it compatible with my country?
it looks like flashing siyah is interesting but after reading some forums here i found out that other people are having problems..
bump!
added Additional Notes on 1st post
randolph2000 said:
i have a few questions:
if i flash this, my flash counter will activate right?
Dont know what this is if its a modem then no .
is this modem is like the "radio" thing in htc? same time if i flash this modem.. is it compatible with my country?
Yes its baseband or radio country = suck it and see .
it looks like flashing siyah is interesting but after reading some forums here i found out that other people are having problems..
Your choice other kernels available .
jje
Click to expand...
Click to collapse
JJEgan said:
randolph2000 said:
i have a few questions:
if i flash this, my flash counter will activate right?
Dont know what this is if its a modem then no .
is this modem is like the "radio" thing in htc? same time if i flash this modem.. is it compatible with my country?
Yes its baseband or radio country = suck it and see .
it looks like flashing siyah is interesting but after reading some forums here i found out that other people are having problems..
Your choice other kernels available .
jje
Click to expand...
Click to collapse
Thanks for answering my questions.
Click to expand...
Click to collapse
I flashed XXLF5 modem on my SGS3
After flashing, i really had a fast internet connection..
Problem is, Im unable to make calls, and text...
I have a good signal quality here
swery ms
randolph2000 said:
I flashed XXLF5 modem on my SGS3
After flashing, i really had a fast internet connection..
Problem is, Im unable to make calls, and text...
I have a good signal quality here
Click to expand...
Click to collapse
Always use only the CRC/Modem to your region/country.
Senascript said:
Always use only the CRC/Modem to your region/country.
Click to expand...
Click to collapse
Sent from my GT-I9300 using xda app-developers app
Yes I downloaded/flashed the right radio based on my country...
I downloaded it on the [ref] modem on sgs3 post...
I tried to reflash the radio DXLF3 modem...
Tried to make calls which is a success...
and did some bandwidth test....
Ill try to post updates based my experience...
Sent from my GT-I9300 using xda app-developers app
I too have bad signal and delayed internet.. its so bad.. I see 1 bar all the time
Sent from my GT-I9300 using xda app-developers app
soraxd said:
I too have bad signal and delayed internet.. its so bad.. I see 1 bar all the time
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
i did have the same problem, but after flashing the radio/modem i did have some good signal.. almost on par with HTC Desire (cyanogenmod 7.2) but im still evaluating the modem/radio...
maybe ill give this a few days/weeks before complaining to globe telcoms
So... i'm having a few problems with the 3G/HDSPA signal on my GS3. I flashed to like 6 different ROMs and all of them have TERRIBLE connection performance. It only works well when I flash to the stock firmware (CSC I9300UVCALE4).
Is this possible or am I tripping? Second, can I use the ROM I want and just change the CSC to that one?
Thanks
Yes you can.
Sent from my GT-I9300 using xda app-developers app
Arsaw said:
Yes you can.
Sent from my GT-I9300 using xda app-developers app
Click to expand...
Click to collapse
Good. Is there a tutorial to do this?
bornlivedie said:
Good. Is there a tutorial to do this?
Click to expand...
Click to collapse
yes google or xda search will help : http://www.jayceooi.com/2012/08/15/how-to-change-csc-on-samsung-galaxy-s3/
chrismast said:
yes google or xda search will help : http://www.jayceooi.com/2012/08/15/how-to-change-csc-on-samsung-galaxy-s3/
Click to expand...
Click to collapse
I know of that method, but, will it work with a custom ROM? I mean, it probably has like 1 CSC.
My CSC will not be there.
Haven't tried because the phone is charging, but it doesn't seem logic to me...
Anyways, will do a search in the forums. Thanks.
bornlivedie said:
I know of that method, but, will it work with a custom ROM? I mean, it probably has like 1 CSC.
My CSC will not be there.
Haven't tried because the phone is charging, but it doesn't seem logic to me...
Anyways, will do a search in the forums. Thanks.
Click to expand...
Click to collapse
I saw that many custom ROMs include an even larger list of CSCs than the stock SAM ROM but please correct if I am wrong.
Usually it should at least include the CSCs of that specific region.
You could try and just go into that menu and check what CSCs are included in yours.
My czn galaxy s2 is working perfectly has xwlpd 4.03 except he detects sim but shows no service for sim...
plzzz help me...
i will be very thankful to u.........
Hi!
Since you are new here, it might be the best time for you to read the forum rules just to get you informed.. http://forum.xda-developers.com/announcement.php?a=81 check it out!
1. try inserting your sim in another phone, if you find a signal in the other phone, then there might be something wrong with the s2..
if there is still no signal, then it is a network related problem and call your network operator
2. if you find a signal in the other phone and not in your s2, then you must flash a modem..
DEFINITION:
*Modem/Radio/Baseband is all the same thing and can be seen by going to Settings - About Phone - Baseband. It's basically a driver which receives and sends Mobile Network signals as well as handling switching between GPRS, 3G, HSDPA etc....... (but not WiFi connection, that and switchover between Mobile Network and WiFi is handled by the kernel). Reasoning as to why Modem has no influence on WiFi can be found in this post by Entropy - http://<b>http://forum.xda-developer...count=6556</b>
USAGE:
*There is no one "Best" modem for everybody. Unfortunately you actually have to try to find the modem which works perfectly for you on performance, strength and battery drain levels. The good thing is that from my lengthy 8 month experience with Galaxy S2, I'm happy to report that there are a few modems that seem to perform well geographically for most users. These modems are KE7, KH3, KI3, KI4, KL1, LPS, NEKF2, NELP2 & NELP3.
COMPATIBILITY:
*Modems do not need to be matched up with firmware like it's done with ROMs and Kernels. For example, a KI4 modem can be used with a KL1 ROM and the other way round. The only thing you need to pay attention to is what model your SGS2 is. 9100 and 9100 modems are compatible across both models. However, 9100 model and US variants are not cross compatible since the devices are designed to work on different bands.
INSTALLATION:
*I will add a flashing guide to post number 5 soon, hence why it says "Work in progress.....". For the moment I suggest asking Mr. Google to do a search for you. Bottom line is, for CWM packaged modems you need to be rooted and have a working CWM recovery (flash the CWM modem zip within recovery). For .TAR packages, all you need to do is flash it while your device is in Download Mode and connected to ODIN. The .TAR file should be selected in the PHONE field. Don't touch anything else.
GO HERE TO GET STARTED! http://forum.xda-developers.com/showthread.php?t=1131950
i hope this helps,
cheers!
my problem still exists but info provided by u is very usefull so thanks
n give me other solution if u can
sir i have a problem that i hav imei,baseband,csc intact of my s2 as i checked it by dialing *#1234#.......but sim is out of service in my cell...............i have 4.03 ICS xwlpd rom..............
plxxxxxxx help me
plzzzzzzzz reply me
Hi!
Well i suggest you go flash back to stock firmware and do a factory reset.
I hope this will resolve all your problems! cheers
Sent from my GT-I9300 using xda premium
saadiqbal52 said:
plzzzzzzzz reply me
Click to expand...
Click to collapse
You seriously gotta wait longer than 17 minutes before bumping your thread.
saadiqbal52 said:
sir i have a problem that i hav imei,baseband,csc intact of my s2 as i checked it by dialing *#1234#.......but sim is out of service in my cell...............i have 4.03 ICS xwlpd rom..............
plxxxxxxx help me
Click to expand...
Click to collapse
saywhatt said:
Hi!
Well i suggest you go flash back to stock firmware and do a factory reset.
I hope this will resolve all your problems! cheers
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
dont bother with factory reset i tried that already together with alot of other stuff
heres my post http://forum.xda-developers.com/showthread.php?p=32133301
it seems lately alot of people are facing this issue...
@ammar
I meant to say that 1st he should flash a stock firmware BEFORE he factory resets
Also, have you checked this thread for your IMEI loss?
http://forum.xda-developers.com/showthread.php?t=1264021
I hope this can help you guys cheers!
Sent from my GT-I9300 using xda premium
saywhatt said:
@ammar
I meant to say that 1st he should flash a stock firmware BEFORE he factory resets
Click to expand...
Click to collapse
i tried that too
saywhatt said:
Also, have you checked this thread for your IMEI loss?
http://forum.xda-developers.com/showthread.php?t=1264021
Click to expand...
Click to collapse
i havent lost my IMEI that is still fine.. i cant make calls but i can use the internet.
another question my phone is still under warranty so if i send it to samsung would theh be able to sort it even if my IMEI was messed?
ammar1514 said:
i tried that too
i havent lost my IMEI that is still fine.. i cant make calls but i can use the internet.
another question my phone is still under warranty so if i send it to samsung would theh be able to sort it even if my IMEI was messed?
Click to expand...
Click to collapse
Oh. I thought u lost ur IMEI (i read the thread u linked) so i gave u the link on how to retrieve it..
Yeah, u can send it back to the service center.. but u have to flash back to a stock firmware first
Sent from my GT-I9300 using xda premium
hello everyone
sorry my english is bad
I want to ask I want to downgrade the modem firmware of i9100xxls8 jellybean
whether as a result?
experienced people please help me because I lose signal every time even in the city:crying:
thank you ...!:highfive:
putu1996 said:
hello everyone
sorry my english is bad
I want to ask I want to downgrade the modem firmware of i9100xxls8 jellybean
whether as a result?
experienced people please help me because I lose signal every time even in the city:crying:
thank you ...!:highfive:
Click to expand...
Click to collapse
You have to try each modem to suite you. For example, lp1 works great with me until last night it broken and my simcard not detect, now I'm using ls6. Some people suggest to try kh3 and dvl. But honestly, you better flash your self to see the result. Here I give you link to our beloved member's host site. You can find his collections of modems. And my suggestion, you might want to install GetRIL from play store as well.
http://d-h.st/users/ApriliaM3/?fld_id=0#files
Sent from my GT-I9100 using xda app-developers app
kunterk said:
You have to try each modem to suite you. For example, lp1 works great with me until last night it broken and my simcard not detect, now I'm using ls6. Some people suggest to try kh3 and dvl. But honestly, you better flash your self to see the result. Here I give you link to our beloved member's host site. You can find his collections of modems. And my suggestion, you might want to install GetRIL from play store as well.
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
I've downloaded the modem dxlp7 but how do I flash it?
putu1996 said:
I've downloaded the modem dxlp7 but how do I flash it?
Click to expand...
Click to collapse
From cwm. Try search. Got plenty out there. My fav is dorimanx.
Sent from my GT-I9100 using xda app-developers app
putu1996 said:
I've downloaded the modem dxlp7 but how do I flash it?
Click to expand...
Click to collapse
If your phone is rooted and you have a custom recovery, shut down your phone, hold the power + home + volume up buttons to boot into recovery. Flash your modem through recovery.