Signal on galaxy s3?? - Galaxy S III Q&A, Help & Troubleshooting

Does the signal or Internet speeds over hspda depend on the actual phone or does it depend on the rom or modem or kernel you are using? I've tried a lot of different roms and my signal and data connection seems to fluctuate alot never stays solid, any ideas cheers.
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Modem/Baseband is mobile network .
jje

So out of curiosity which modem is known to give the best signal? Cheerz
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Dannytgalaxys3 said:
So out of curiosity which modem is known to give the best signal? Cheerz
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Hi!
It depends on your region actually, you can try a handful or so yourself also, your Network Service Provider might also have a say on your mobile data if it fluctuates a lot
I hope this helps

Related

Mobile Internet so slow on my s2?

Is there anyway to increase the speed. I am on edge connection. Thanks
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mirchichamu said:
Is there anyway to increase the speed. I am on edge connection. Thanks
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Try different modem(baseband). Try few and you'll find best for you.
mirchichamu said:
Is there anyway to increase the speed. I am on edge connection. Thanks
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Get on a mobile network that this phone fully supports. What carrier are you on? This phone doesn't get better than edge on certain networks. (for example, T-mobile USA)
Thanks for the replies. I am having data sim card. No router.
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mirchichamu said:
Thanks for the replies. I am having data sim card. No router.
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Perhaps you didn't understand me. Who is your carrier, and what country are you in?
ctomgee said:
Perhaps you didn't understand me. Who is your carrier, and what country are you in?
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Thanks. I am in Saudi Arabia and my carrier is Mobily.
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mirchichamu said:
Thanks. I am in Saudi Arabia and my carrier is Mobily.
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You should look for carriers who offer the fastest data network speed. I know here in holland, its vodafone. So perhaps you should switch carriers for faster speed. There isnt a other way to increase it.
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mirchichamu said:
Thanks. I am in Saudi Arabia and my carrier is Mobily.
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From what I was able to find though, Mobily DOES use a frequency (WCDMA 2100) that this phone supports.
Did you get the phone brand new? Or used? Are you sure it's an i9100 model phone?
mirchichamu said:
Is there anyway to increase the speed. I am on edge connection. Thanks
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like someone already told you, you should try flashing a different modem (afaik, you can try any sgs2 modem you like, no matter which rom/kernel you are on).
here is a link for a thread with a collection of modems
ctomgee said:
From what I was able to find though, Mobily DOES use a frequency (WCDMA 2100) that this phone supports.
Did you get the phone brand new? Or used? Are you sure it's an i9100 model phone?
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Thanks a lot for being with me. I got the phone seal packed. And yes it is galaxy S2.
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amititzhaki said:
like someone already told you, you should try flashing a different modem (afaik, you can try any sgs2 modem you like, no matter which rom/kernel you are on).
here is a link for a thread with a collection of modems
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Thanks brother for ur help. But I don't know all these. I don't know how to flash a modem? My version is 2.3.5. That's what I know.
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To be specific jpkj2
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download speedtest from play store and check what speeds you are getting.
max speed i get on good days on edge is 200kbps. test what you are getting. remember edge is sllow
Try 3G/4G Optimizer. You can tweak for max speed.
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tariq2kn said:
Try 3G/4G Optimizer. You can tweak for max speed.
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he is on edge
Edit:
Ahh apparently he was not clear, on first post he said he is on edge.
Thank you all for replies. I will let you know when I downloaded them. My connection changes frequently from E TO H TO 3G TO G. I HAVE PUT ON AUTOMATIC.
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Thanks atif and tariq
Now my Internet far better than before. I changed the network type to auto instead of gsm. I also did the tweaks. Also it is much faster when outside rather than at home or at work because of poor signals.
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[Q] 3G To HSPA+?????

Sorry to be a bother. I have serached numerious post about simular problems with details pretaining to a fix in this matter. I have a Samsung Galaxy S2 SGH-I777. The Rom I am currently running is ShoStock V.2.2.6, Android 4.0.3 with the cheerypicker Kernel and bandband ver.I777UCPLCS. The problem I have been having and did not have before flashing this rom, is that my 3G signal and HSPA+ notification keeps flickering back and forth. Plus my data speed have slowed up a bit. Yes, I could flash back to another rom but I really like the features of this one. Is there a fix to this problem is it a known problem? Thanks so much.
Try a different modem.
Also H+ only shows when using data, if not it will show the 3g instead.
LiLChris06 said:
Try a different modem.
Also H+ only shows when using data, if not it will show the 3g instead.
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I figured that LiLChris. But it keeps flickering back and forth. Plus this is mow happening in areas that I once had a full H+ signal with very fast speeds.
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The flickering is part of ShoStock and most other ROMs. It shows you the true connection; as LiLChris said, it uses H+ only when using data, and defaults to 3G when no data is being sent. AT&T usually just hides this and makes it show H+ all the time, even though that's not accurate.
I know, it freaked me out at first too lol. As for data speeds, try different modems and also changing APN settings.
EDIT: I didn't know the problem was when you're sending data (you posted a couple secs before I did). APN settings and a different modem may help you out with that.
Sounds like modem issues as stated. In my area modems can vary by up to 2mbs depending on which one I try
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nyamoV2 said:
Sounds like modem issues as stated. In my area modems can vary by up to 2mbs depending on which one I try
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Is flashing different modems cut and dry? Is there a place to go and see what modems in my area are good to use?
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Steve6569 said:
Is flashing different modems cut and dry? Is there a place to go and see what modems in my area are good to use?
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Not really cut and dry, but this will help you out.
karate104 said:
Not really cut and dry, but this will help you out.
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Thanks so much for your help its really appreciated.
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[Q] Best Vodafone UK modem?

What's your experiences with modems in the UK? I'm on Vodafone and not getting great reception and more often than not stuck on 2G which kinda sucks.
Any advice?
I'm on Omega ROM and just flashed LF5 which has probably been the worst modem of the lot.
Thanks
Dxlea is doing the business for me squire however... im tmobile
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zeroundead said:
What's your experiences with modems in the UK? I'm on Vodafone and not getting great reception and more often than not stuck on 2G which kinda sucks.
Any advice?
I'm on Omega ROM and just flashed LF5 which has probably been the worst modem of the lot.
Thanks
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Hi,
which is the modem that you are using right now? I am on LF5 with Omega v7 and it is so rubbish. I am on vodafone UK as well.
Thanks
carabassot80 said:
Hi,
which is the modem that you are using right now? I am on LF5 with Omega v7 and it is so rubbish. I am on vodafone UK as well.
Thanks
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this says more about voda's 3g coverage to be honest, i havenever had good 3g coverage on voda, then again i have never had what i call good 3g on any phone i have had. Things may improve now the are partnering with 02, network coverage will be doubled in some areas.
I've currently got DXLEA modem. It's nothing special, I get OK signal but hardly ever get above G in terms of network speed
Was fine in my Galaxy S, seems to have gone downhill since I got the S3. I also got it replaced because of pink tint, but the network speed was the same on both handsets
Nele4 that what I'm using on o2 signal is rubbish on the s3 vs s2
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LH1 works best for me or LH8
lh1 or lg8 good here on orange/t mobile
On Vodafone getting 3g on LH1. Only started getting it since lh8
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Nele on 3. Getting just over half strength.
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LFB network bug

I've recently noticed a weird network bug on LFB. If the phone loses signal (on subway etc.) with data on, when signal is available it acts as though the SIM was refused by the network continuing to display Emergency calls only. If I turn data on and off it gets weirder (see screenshot).
The only way to fix it is too reset the radio, with flight mode, or *#*#4636#*#*
It's definitely not a hardware fault since, as you can see it still can connect to the network. It just acts as though the connection was refused (or alternatively does something weird that causes it to ACTUALLY be refused)
Anyone else experienced this??
The phone is an original BTU using unmodified LFB on China Unicom
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Are you able to set/receive calls or send/receive SMS? What about USSD codes to your provider?
I've already read about other users complaining about this issue, I guess it's a software-bug in the display.
No. I'm not sure if HSDPA will work in the example pictured. I was in a hurry to make a phone call so just quickly snapped the screenshot then reset the modem.
Messages will get service unavailable. Incoming ones don't get received until I reset
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LFB is a poor modem firmware .
jje
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esist said:
I've recently noticed a weird network bug on LFB. If the phone loses signal (on subway etc.) with data on, when signal is available it acts as though the SIM was refused by the network continuing to display Emergency calls only. If I turn data on and off it gets weirder (see screenshot).
The only way to fix it is too reset the radio, with flight mode, or *#*#4636#*#*
It's definitely not a hardware fault since, as you can see it still can connect to the network. It just acts as though the connection was refused (or alternatively does something weird that causes it to ACTUALLY be refused)
Anyone else experienced this??
The phone is an original BTU using unmodified LFB on China Unicom
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Yes, I've experienced the same thing a couple of times since LFB on carrier Telia in Sweden.
It reminds me of the phone/modem problems with the SGN which they never fixed before I sold it.
/Per
JJEgan said:
LFB is a poor modem firmware .
jje
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2nd that, flashed the lf2 modem and all my problems with the modem radio
Went away
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Does the DXLF3 modem work with LFB and if so, is anyone able to post a link plz?
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Simmo3D said:
Does the DXLF3 modem work with LFB and if so, is anyone able to post a link plz?
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About four threads down from this is a thread titled "Modem collection" But I guess it's tricky to find:
http://forum.xda-developers.com/showthread.php?p=28033523
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Where do people still lose signals on a subway?
Deusdies said:
Where do people still lose signals on a subway?
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New York City!
Deusdies said:
Where do people still lose signals on a subway?
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Melbourne Australia too.
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Anyone recommends a modem to flash on the XLFB rom? I am also having problems.
Deusdies said:
Where do people still lose signals on a subway?
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London
Deusdies said:
Where do people still lose signals on a subway?
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Washington D.C. has no GSM coverage inside the tunnels. Only some stations have coverage. Only Verizon and Sprint with CDMA devices have service on moving trains.
juliano_q said:
Anyone recommends a modem to flash on the XLFB rom? I am also having problems.
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You can flash DXLF3.. It works so much better than the LFB radio.
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Deusdies said:
Where do people still lose signals on a subway?
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Beijing.
Well 2G is okay. But it sometimes will lose it briefly in the transition from 2g to 3g.
Only Beijing subway line 4 has China unicom WCDMA coverage. the others are limited to 2g at best (except the overground lines, but even they are patchy)
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Simmo3D said:
Does the DXLF3 modem work with LFB and if so, is anyone able to post a link plz?
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Dowload omega files from the market and choose modem to download.
Install zip from recovery
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Having updated to the stock LFB ROM and modem (UK, unlocked, unrooted), I'm really perplexed about the behavior of the phone data reception:
(a) 2 weeks ago, I tried using data connection in a friend's flat in Balham (London), could not get ANY data connection all weekend.
(b) Last weekend, data was consistently perfect and fast anywhere in the same flat, all "H+" 8Mbit and lovely.
(c) This weekend, same place but NO reception again, not a saussage. Voice phone worked fine, just no data at all.
And, yes, I've seen "emergency calls only" sometimes even when there is apparently a strong signal.
Back home again (Portsmouth), phone works fine.
On the plus side, battery consumption is wonderfully low!
Can anyone explain what's going on? It feels like the data connection is sometimes reluctant to "log in" or whatever is does! It seems to have a mind of it's own.
Thanks!
You may want to try another modem like DXLF3. It has better data network stability especially in cities or areas with faint signal.
I am planning to upgrade to the LFB, but i am not rooted. Want to be sure if i have problems with the modem signal, do i have to be rooted to install the new modem driver??
Thanks in advance...

Data signal messed up

Got a problem , hope you guys can help.
My my mobile data won't work on anything less than HCDMA, but when I set this my phone signal drops to 1 bar or less!
If I set it to gsm my signal goes full but no data!
I have rooted and installed a insecure kernel /rom as below .... worked fine for a few months.
Model number : GT-I9300
Android version : 4.0.4
Baseband version : I93000VLG1
Kernel version :
3.0.15-928452-user
[email protected] #1
SMP PREEMPT Tue Jul 27 16:58:30 KST
2012
Build number : IMM76D.I9300BVBLG2
Is there a chance you are on 3 UK?
Afaik, as their name indicates, they only provide 3G/HSPA coverage and no 2G coverage.
3G uses higher frequencies which means more throughput but less distance so it's normal that the signal is weaker than when using 2G networks.
It's also less resiliant to distortion and other signal issues.
You might want to check into using a 3G repeater if the issue occurs at home but be warned that the usage of these devices is shady at best and illegal in most countries. (You'd need an official license to broadcast at that spectrum even if it never reaches across your own borders)
Hi,
I'm on the Vodafone network
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ssb6422 said:
Hi,
I'm on the Vodafone network
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Hi! Flashing a modem might help you out on that problem.
I hope this helps
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Saywhatt,
Thanks for the tip, I'll give it a go and report back.
It's driving me crazy as I cannot get data at work!
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ssb6422 said:
Saywhatt,
Thanks for the tip, I'll give it a go and report back.
It's driving me crazy as I cannot get data at work!
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no problem. do leave a feedback!
kernels are for wifi connections
modems are for network connections like your signal
Try calling your carrier and ask them to refresh your network and APN setting. I suffered this problem yesterday and called my carrier five times to deal with it. Now it is running fine.
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Thanks guys for both of your suggestions, I did change my modem and I did ring Vodafone to refresh.
The modem did improve the signal slightly but the refresh has resumed normal service!
At least I now know how to change or tweak my modem for optimum performance. Also did not know the kernel was for WiFi.....will look at that too!
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One strange thing though...only works on edge....anything higher it just hangs.
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As i find and as others have posted .
If you have changed modems and get problems after reflash to a known good modem .
Then one solution is to start from scratch wipe phone and install older stock firmware .
Then update .
jje
You are most welcome
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