Develop Bugs

Anyway to boost the signal reception on the gs2?

I signed up with tmobile about two weeks ago and have had no complaints until now. All of a sudden I am having trouble keeping a constant data connection at my place of business. Idk if its my phone or a problem with the local tower but the signal is all over the place while browsing the web. It looks like a strong signal until I go to use data then it drops to nothing. Last week this wasn't a problem at all.
Any tweeks or hardware I can buy to help remedy this?
My phone is completely stock and I am on the 30/month pre paid plan if that makes a difference.
Are there any better radios out that can be installed maybe?
Sent from my SGH-T989 using Tapatalk 2

Is WIFI available at your place of business? If you are completely stock I'm assuming you are on GB. If that is the case use the WIFI calling feature offered by T-Mobile. If WIfI is not availiable you can try flashing the Blaze modem it improved my data speeds.
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Unfortunately WiFi is not available. I will look onto flashing the blaze modem. Thanks!
If ICS is indeed right around the corner will it come with different modems?
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busab said:
Unfortunately WiFi is not available. I will look onto flashing the blaze modem. Thanks!
If ICS is indeed right around the corner will it come with different modems?
Sent from my SGH-T989 using Tapatalk 2
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Well hopefully it is right around the corner and we can have the current crop of ICS roms rebased off the T-Mobile S2 stock build and not from our distant cousin AT&T SkyRocket's build. But to be honest I’m not sure if it will or will not but I’m assuming it will as the current set of radios needed to be tweaked to work on current ICS roms. Any who if you want Mr. X has a list of some radios that he has tried and reported working he listed radios for both GB & ICS which I will post a link to his thread below. Try them out and you might just find one that works for you.
http://forum.xda-developers.com/showthread.php?t=1426001

I called tmobile about what was going on. They said they were going to try to reset my data connection and that I should reboot my phone and of its not fixed in a couple hours then to call them back.
I did this and all is well again! I'm back to a good signal and have not had any data issues in the past couple hours!
Thanks for all your help though it was greatly appreciated!
Sent from my SGH-T989 using Tapatalk 2

Glad to hear T-Mobile was able to help fix your issue
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Hows the fe07 modem perform

I'd be running with el29
Currently on fd19
Sent from unnamed 2.0.1 powered galaxy s2 brought to you by sprint

Haven't seen much difference and I been on it all day. 4g seemed to connect a little bit better.
Sent from my SPH-D710 using XDA

MOST modems will perform the same, to be honest. Sprints network is slow as it is, not like flashing a new modem will make a jump in speeds. Its a placebo anyway. With EVERY new modem, the same people will say 3G is better, or 4G is better, or Wifi, Gps, ETC. when in actuality......it doesnt!

Ive had fairly good luck with most of the modems. But today I was not happy with FE07. 4G kept dropping out alot and way too many times 3G was not working. But it works enough to not complain yet. If it goes on for more than another day I will double check FD26.
From EK02 up I can expect up to 15 Mbps on 4G and 500 Kbps to 2 Mbps on 3G. If I see those figures pop up over the course of a week I figure its doing alright. If I have a horrible experience the entire week, crappy performance and never hit anywhere near those numbers then I begin to suspect something. Nearly every modem I have been on had 1.40 to 1.49 Mbps on 4G Upload. When that goes sour on a modem all the time its a quick sign if it persists.

best modem for GPS so far?
Which modem seems to lock on the best with GPS. On EL29 and it isn't very good at all, connects for a while then drops leaving me hanging or won't connect at all. Are they all pretty much the same in this regard? My EVO 4G was really good on GPS.

Spectre99 said:
Which modem seems to lock on the best with GPS. On EL29 and it isn't very good at all, connects for a while then drops leaving me hanging or won't connect at all. Are they all pretty much the same in this regard? My EVO 4G was really good on GPS.
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Samsung devices have not been known for having the best GPS hardware. EL29 is the latest official release but there are several ICS modems available. Try some of them and see how it goes... latest is fe07 found here: http://forum.xda-developers.com/showthread.php?t=1642564
Its in post #2 its b5

Right now, I'm running CM9 alpha 3 / kernel fd10 / modem el29.
Question: What would be the benefit of flashing the FE07 kernel?
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AMunozXS said:
Right now, I'm running CM9 alpha 3 / kernel fd10 / modem el29.
Question: What would be the benefit of flashing the FE07 kernel?
Sent from my SPH-D710 using xda premium
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You could brag to your friends about having the latest ICS kernel installed

I like to listen to a streaming talk show on my phone when I shower in the morning. I need wifi to do it, no data at home. Some modems will not connect to my wifi in the same bathroom which is the furthest from the router. Other modems will connect with a strong connection. I don't think every modem is the same.

slick4mitch said:
You could brag to your friends about having the latest ICS kernel installed
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Haha I like that idea.
Sent from my SPH-D710 using xda premium

Well I have had gps issues with all the ICS leaks but I have noticed big differences in speed between certain modems fd19 is a solid modem but fe07 is just as fast for me and my gps actually works especially in navigation and our app places.
The top 3 speeds are on fe07 the bottom 3 are fd19 on 4g
Sent from my SPH-D710 using xda premium

FE07 has been good for me so far. Some of the leaks really crippled my 3G, but FE07 seems to work just as well, if not better, than EL29 - at least for me anyway. Haven't tested GPS yet.

For me, No modem seems to work. I guess I'm plain out of luck. There are no towers near me so my phone ALWAYS(sometimes) fails to send text messages or even make calls.
Anyone one have any suggestions I can try?

AMunozXS said:
For me, No modem seems to work. I guess I'm plain out of luck. There are no towers near me so my phone ALWAYS(sometimes) fails to send text messages or even make calls.
Anyone one have any suggestions I can try?
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You should ALWAYS(sometimes) switch to another carrier.
But seriously, allow roaming if you haven't done so already.

Wouldn't I get charged extra for roaming?
Sent from my SPH-D710 using xda premium

AMunozXS said:
Wouldn't I get charged extra for roaming?
Sent from my SPH-D710 using xda premium
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You should be ok as long as you're in your coverage area. I roam all the time and don't get charged extra. I think it has to do with whether you're on Sprint's towers/network or not, and whether those towers are in your coverage area. Might be worth a *2 to Sprint to find out.

sandwich11 said:
You should be ok as long as you're in your coverage area. I roam all the time and don't get charged extra. I think it has to do with whether you're on Sprint's towers/network or not, and whether those towers are in your coverage area. Might be worth a *2 to Sprint to find out.
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Will do, thanks!

AMunozXS said:
Will do, thanks!
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Use roam control to force roaming. They will eventually send you a letter telling you they're canceling your account (no early termination fee) due to excess roaming, and you can sell your E4GT and go to another carrier!

jfin79 said:
Well I have had gps issues with all the ICS leaks but I have noticed big differences in speed between certain modems fd19 is a solid modem but fe07 is just as fast for me and my gps actually works especially in navigation and our app places.
The top 3 speeds are on fe07 the bottom 3 are fd19 on 4g
Sent from my SPH-D710 using xda premium
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so you would recommend the fe07 over the el29 modem for GPS performance?

Spectre99 said:
so you would recommend the fe07 over the el29 modem for GPS performance?
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This is just my personal opinion I try different modems and I have better success with fe07 on my device
Sent from my SPH-D710 using xda premium

ROMS not keeping 4G

I have been flashing for years and i just came over from ATT SG3 where i had no problems flashing and retaining 4g, but now on tmobile every rom i flash all i ever get is 3g and never 4g .. only for a brief second. the reason i came from ATT was the unlimited data.. can someone please assist as i used CM10, AOKP, WICKEDv5, blackjelly..... i cant figured it out. any help would be appreciated.

So you have the T-Mobile version now? Tried different radios
Sent from my SGH-T999 using xda app-developers app

Teo032 said:
So you have the T-Mobile version now? Tried different radios
Sent from my SGH-T999 using xda app-developers app
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I have tried every single radio but alas.. i have had no luck and i live in Phoenix, AZ and i have tried all the 4.1.1 modems

OptimusSteel34 said:
I have tried every single radio but alas.. i have had no luck and i live in Phoenix, AZ and i have tried all the 4.1.1 modems
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Click to collapse
Hmm i would think Phoenix should have good service. Maybe you should Odin back to stock and start all over. Radio is the only reason i can think of that would affect the speed.
Sent from my SGH-T999 using xda app-developers app

How are you distinguishing what connection you are on? Many roms will show H+ instead of 4g
Sent from my SGH-T999 using Tapatalk 2

I'm on stock. Rooted yesterday and download speeds seem slower now. I will do more testing this afternoon.
Sent from my SGH-T999 using Tapatalk 2

well on the t-mobile variations the best you can get is H+ and most ROMs show that. other than that, try using a different kernel. that was the problem for me where my data wouldn't even work sometimes.

It looks like op knows the difference between 3g and 4g/H+ he noticed that he only gets 4g for like a second here and there and that's it.
Sent from my SGH-T999 using xda app-developers app

I had a similar problem. What happened with me was one day I went from great 4G (HSPA+) speeds 80ms Ping, 25MB Down, 4MB Up to all of the sudden a 1200ms Ping with 0.05MB Down and NO UPLOAD.
Turns out it was a problem with some towers in my area. Took T-Mobile two weeks to fix everything. Not sure if that is what's happening here but it could be possible.

OptimusSteel34 said:
I have tried every single radio but alas.. i have had no luck and i live in Phoenix, AZ and i have tried all the 4.1.1 modems
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I live in phoenix, Arizona.
My sun niggaa!
Sent from my SGH-T999

Same issue AOKP Build5 4.2.2
I too have this same issue with AOKP build 5 solid 3g but no 4g (H+) (tmo)
Stock however has solid 4g (chandler AZ)
gonna try CM and see what happens there.
Also gonna research radios aswell (really really really liked AOKP just didnt like being back on 3g)

[Q] No service at work. Any help?

Ive noticed since I moved offices, that in my office building I get absolutely no service whatsoever. And there is no wifi password available to use wifi via my phone. So today as I was leaving work and finally got service again, I had 12 missed calls, 5 texts, and 3 voicemails. Is there a better modem to flash that can help? Thanks!

Not exactly. Different locations have different best modems. You just have to try them and see.
Sent from my SGH-T999L using XDA Premium 4 mobile app

Could anyone suggest an updated modem, or one they have had luck with if they are from the Chicago-land area?

You could check the map in the modem thread too. I know its a jumbled mess now, but the info can still be useful.
Sent from my SGH-T999L using XDA Premium 4 mobile app

yeah, i was trying to find my way through it but it is difficult so it hasnt really helped

K. Sorry bout that. Ill be redoing everything in it soon though.
Sent from my SGH-T999L using XDA Premium 4 mobile app

Do you think you could message me about what modem/radio might work better once that forum is sorted out? It really sucks not being able to use my phone at work for 8 hours. Thanks

I may not be able to unfortunately. I messed around a little before and got nowhere. May have to start a new map.
Have you checked T-Mobiles coverage map yet? There just may not be a signal there in the first place.
Sent from my SGH-T999L using XDA Premium 4 mobile app

DocHoliday77 said:
I may not be able to unfortunately. I messed around a little before and got nowhere. May have to start a new map.
Have you checked T-Mobiles coverage map yet? There just may not be a signal there in the first place.
Sent from my SGH-T999L using XDA Premium 4 mobile app
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I never had a problem with my Blaze there. Even at home with the S3 I get maybe 2 bars. Which leads me to believe its the modem. On my Blaze I had an updated modem that made data very fast.

Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/

Any modem, any rom, any build. Only make sure you use the right models modems, which it sounds like you are
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itsLYNDZ said:
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
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Click to collapse
It will work, but last time I did that I wasn't able to connect to hspa or hspa+ only umts.. If it gives you signal though I guess its better than nothing
Sent from my SGH-T999 using Tapatalk 4

itsLYNDZ said:
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
Click to expand...
Click to collapse
You can use any modem version as long as it's specifically for your phone.

itsLYNDZ said:
Can I use UVLI6 which is a 4.1.1 modem on a 4.1.2 rom I am currently using? Would that be compatible? i cant remember which way compatibility goes :/
Click to expand...
Click to collapse
And just in case for some reason you need to hear the same answer a 4th time, yes you can do that! LOL!
serio22 said:
It will work, but last time I did that I wasn't able to connect to hspa or hspa+ only umts.. If it gives you signal though I guess its better than nothing
Sent from my SGH-T999 using Tapatalk 4
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This is just strange... in roughly a year of doing this I think you're the first to report that happening. 4.0.4 and 4.1.1 modems have always worked on 4.1.2, and any other combo has worked as well. There are people who still use the LH2 (ics) modem because it still performs better than any other for them.
I think you may have been seeing it function normally though. When idle, its supposed to drop to UMTS to save power and bandwidth. If you check while a transfer is occurring you will see it change to HSPAP.
Sent from my SGH-T999L using XDA Premium 4 mobile app

Has anyone else found another modem that they now use that gives them better signal/data speeds for their Tmobile T999? My work building is a complete dead zone for Tmobile, so I am hoping flashing another modem works. Otherwise, im not sure what else I can do.

I have to refer you to my initial response here. A modem that gives better speed and signal for me, might be one of the worst for you.
Just something to consider, you probably could test 2-3 different ones each day at work. Maybe more. If your main issue is signal, then flash, check service, if none then flash another right away. I could probably flash 5 different ones on a 15 min break if I was only looking for improved signal. Might be a better way than waiting for someone to tell you what worked for them, then testing only that the next day. Its your phone and your time though, so its your call. Just tryin to help
Sent from my SGH-T999L using XDA Premium 4 mobile app

DocHoliday77 said:
I think you may have been seeing it function normally though. When idle, its supposed to drop to UMTS to save power and bandwidth. If you check while a transfer is occurring you will see it change to HSPAP.
Sent from my SGH-T999L using XDA Premium 4 mobile app
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Nope I know all about that.. it would never get to hspa, always umts, ran it for days and as soon as I switched to a jb modem I got hspa back
Sent from my SGH-T999 using Tapatalk 4

serio22 said:
Nope I know all about that.. it would never get to hspa, always umts, ran it for days and as soon as I switched to a jb modem I got hspa back
Sent from my SGH-T999 using Tapatalk 4
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So weird....figured you would know, but wasnt certain. Still, never heard of one doing that. Finicky huh?
Sent from my SGH-T999L using XDA Premium 4 mobile app

I use the UVMD5 modem and my signal is strong but my battery dies faster...

DocHoliday77 said:
So weird....figured you would know, but wasnt certain. Still, never heard of one doing that. Finicky huh?
Sent from my SGH-T999L using XDA Premium 4 mobile app
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Yeah it is weird.. I tried with both touchwiz and aosp with the same result
Sent from my SGH-T999 using Tapatalk 4

Need help with RIL File..

Can anyone help me with the RIL Stuff on the G Pro? I have service issues in a low service area but ONLY when using a NON AT&T Stock rom. When using CM 10.1 or the Telcel E980h my service sucks! From around -90 to -100 on stock to -100 to mostly -105 to -111 and its terrible! but When on Stock the network is flawless. Yes Ive tried flashing the Baseband still same problems.
So now the next thing to try is the RIL stuff which I DONT have exspeicance with. How do I get to the RIL files to copy them so I can put them on something else?
The ONLY RIL file I found on stock is under /system/lib/libril.so or something like that but that did nothing.
If its the RIL causing problems how can I fix it?
If its not the RIL that would cause that what else do I look into??
I also wanted to add at this location the phone NEVER looses service completely! But when using something other than the Stock AT&T E980 Rom It keeps going to emgency Calls only a lot as well!

Okay so now that I see when you're on CM10.1 its the same low service. Its not the RIL files. Its actually AT&T lying to you. I know this because whenever I go to Rangely Co, I have crappy service on cm10.1. When on stock ROM I see all bars and 4G, yet speeds are almost nonexistent and I can hardly ever get a phone call out
Sent from my LG-E980 using xda app-developers app

Jammol said:
Okay so now that I see when you're on CM10.1 its the same low service. Its not the RIL files. Its actually AT&T lying to you. I know this because whenever I go to Rangely Co, I have crappy service on cm10.1. When on stock ROM I see all bars and 4G, yet speeds are almost nonexistent and I can hardly ever get a phone call out
Sent from my LG-E980 using xda app-developers app
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Click to collapse
Its NOT AT&T Lying to me. The Data and Phone calls work fine and service stays intact! I`m NOT talking about Signal Bars here I`m talking about the actual signal strength, and the acutal Service. While on the AT&T rom I can move my phone around at the location and will it will occanalny qurik and stop working but still never go out of service (Still on AT&T network) On any other rom I dont even have touch the phone and just switch to Emergency Calls only, I know how AT&T fakes the signal bars on there phones software but this is not the case the service itself simply does NOT suck as bad as it does when NOT running AT&T`s stock firmware.
So Im not really sure whats going on.
The ONE thing about CM 10.1 though the Service NEVER went out and was a good bit more reliable than the international stock roms it is atleast usable! But I never care for CM.

I had the same issue when I had my s3 when I was on cm my signal sucked but when I was on a touch wiz Rom it was fine could never figure it out tried flash in different modems that did not work either
Sent from my LG-E980 using xda app-developers app

The ROMs interpret signal strength differently. That's why I said before at&t stock ROM is lying to you. It happens to me all the time. When I'm in Rangely on the stock ROM it'll show that my signal strength is strong but it actually isn't because there isn't a tower for them there yet it shows I'm connected to them. However on any other ROM it shows I'm roaming.
Its because the ROMs are designed to read differently. That's why I say at&t ROM is lying.
Sent from my LG-E980 using xda app-developers app

Jammol said:
Okay so now that I see when you're on CM10.1 its the same low service. Its not the RIL files. Its actually AT&T lying to you. I know this because whenever I go to Rangely Co, I have crappy service on cm10.1. When on stock ROM I see all bars and 4G, yet speeds are almost nonexistent and I can hardly ever get a phone call out
Sent from my LG-E980 using xda app-developers app
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Click to collapse
Jammol said:
The ROMs interpret signal strength differently. That's why I said before at&t stock ROM is lying to you. It happens to me all the time. When I'm in Rangely on the stock ROM it'll show that my signal strength is strong but it actually isn't because there isn't a tower for them there yet it shows I'm connected to them. However on any other ROM it shows I'm roaming.
Its because the ROMs are designed to read differently. That's why I say at&t ROM is lying.
Sent from my LG-E980 using xda app-developers app
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Click to collapse
I understand what your are saying, But its its NOT that causing my issue, as when on AT&T Stock Rom, Calls GO THROUGH Data Works almost with an issue! (not looking at the signal bar and such) On the Telcel rom or anything else, Calls Fail, Calls get Dropped, Data just sits there, Phone looses complete service and says Emergency Calls only!

Have you tried turning on data roaming?
Sent from my LG-E980 using xda app-developers app

Jammol said:
Have you tried turning on data roaming?
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Yea, But that shouldnt do anything as There is NOTHING to roam on here, The closest Place that I have even roamed before and even by Coverage Maps is about 5 hours away Near Nashville, TN but thats the ONLY time I have ever roamed. Sadly even though T-Mobile is here it wont roam no phone has its always emericancy calls only.

Ril classes are built into the framework. See below for an example.
https://github.com/CyanogenMod/android_frameworks_opt_telephony
Sent from my LG-LS970 using xda app-developers app

Shelnutt2 said:
Ril classes are built into the framework. See below for an example.
https://github.com/CyanogenMod/android_frameworks_opt_telephony
Sent from my LG-LS970 using xda app-developers app
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So what exact files Should I pull from the AT&T stock rom and put over on the other? whiles the files and folders I should move? Thanks.