Develop Bugs

WiFi Issues

I flashed to CM9 3-15 build this morning and after doing so, I no longer have wifi. I've flashed multiple ROMS, Modems and Kernels now with no success.
Here's my logcat from a completely stock EL29 phone.
http://pastebin.com/EhELZDJc
Any suggestions?

I think I'm experienceing this issue too :0 I'm getting a very weak signal when I'm right next to my adapter while my flyerbl has full bars
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dspain28 said:
I think I'm experienceing this issue too :0 I'm getting a very weak signal when I'm right next to my adapter while my flyerbl has full bars
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OPs issue is it won't even connect to the router to even get a low signal.
these wifi issues are certainly interesting.

flashed to cm9 alpha 6, get grey 3g bars no data

When I was on stock I was always on 3g. Now that I flashed to cm9a6, I've been waking up to my phone with grey 3g bars. I flip to airplane mode and back to fix it and finally get my emails but its a real pain in the ass.
I looked into it, but saw posts from march, wondering if anyone had a fix or if this is just a bug.

vipersilver said:
When I was on stock I was always on 3g. Now that I flashed to cm9a6, I've been waking up to my phone with grey 3g bars. I flip to airplane mode and back to fix it and finally get my emails but its a real pain in the ass.
I looked into it, but saw posts from march, wondering if anyone had a fix or if this is just a bug.
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Bug but, there are newer nightlies to flash than a6... Google chris41g to find his server with nightlies, otherwise go ask in the thread for more specifics
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Why are you on alpha 6? Lol that is the question. Chris41g is knocking out RC quality builds that you need to be flashing if you want cm9. Get on it
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I was having issues yesterday with my 3g not working. I am on a newer build of cm9. I just think it was a virgin mobile service thing because my 3g is fine now.
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brooksyx said:
I was having issues yesterday with my 3g not working. I am on a newer build of cm9. I just think it was a virgin mobile service thing because my 3g is fine now.
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Did you try making sure you had data roaming enabled in your settings?

nickchambers1977 said:
Did you try making sure you had data roaming enabled in your settings?
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I don't have roaming. I'm on virgin mobile. Sprint towers only.
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[Q] Extremely weak wifi

Hi guys.
I don't know if its my phone or if this is the way the phone is meant to be, I have an extremely weak wifi signal. I am literally right next door to my router and I only get 3/4 bars for signal strength. As soon as I go up to the second floor, I get nothing at all unless I'm directly above my router. This is extremely frustrating at the moment. I decided to lurk around the forum to see if installing a custom rom would help and I ended up installing Jedi Invasion 2; it did not help at all.
It's just so frustrating that I have to use my mobile internet when I'm in bed instead of using my home internet. I don't understand this at all. Why is it so weak? Does anyone else have this problem?
Thank you.

Im with you on this......im staying tuned..
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Have you tried updating your modem to the latest version that was just released?

My modem is perfectly fine. I just dont understand how my old crappy blackberry had a better and stronger connection than my s3.
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I found the Wi-Fi performance increased a fair bit when I upgraded to 4.1.1. I can go a fair ways in my house before dropping bars. Wish I had run WiFi Analyzer before the upgrade so that I could actually compare RSSI.

Depends on the router freq. 2.4ghz and 5ghz. 5ghz can cause crappy WiFi strength issues. Change the settings around to 2.4 only and see what happens.
i727-ucle2-SkY IcS

My router does not support dual band. Like I said earlier, my blackberry has a stable connection while my s3 struggles.
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I had the same problem in 4.0.4 ICS but now on 4.1 JB it is working perfect. Before on ICS I had like 3-4 bars when I was 2ft away from the router. Now on JB I have full 5 stable bars no less with higher distance.

ShaolinMilk said:
My modem is perfectly fine. I just dont understand how my old crappy blackberry had a better and stronger connection than my s3.
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The modem he is talking about is a radio for the phone. Not the modem that connects you to the internet through your ISP.

Oh. Im still relatively new to this device so I never knew. How do I update the modem?
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ShaolinMilk said:
Oh. Im still relatively new to this device so I never knew. How do I update the modem?
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Well first thing your going to have to do is root the phone before you can update your modem.
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Att is rolling out jelly bean now through kies. Id just do that before you hit the modding route. Jelly Bean will update you too there latest and greatest modem and boot loader updates. Then root it and never look back
i727-ucle2-SkY IcS

So I went ahead and installed the latest modem. It made my signal even worst somehow. How do I restore back to the one I had?
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ShaolinMilk said:
So I went ahead and installed the latest modem. It made my signal even worst somehow. How do I restore back to the one I had?
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Download it and flash it.

Im not exactly sure which modem it was.
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There's only three modems for each carrier. Try them all.
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My data is horrible recently!

At home my data is usually always 7mbps-15mbps.. This past week it's been horrible at home. At about 40kbps...
At work and everywhere else it's fine, but once I get home it's horrible! Even 2 miles away from my house, it's fine.
I called tmobile and they filed a ticket to look into the tower but could take up to 10 days.
Anyone have any ideas?
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Mftek1 said:
At home my data is usually always 7mbps-15mbps.. This past week it's been horrible at home. At about 40kbps...
At work and everywhere else it's fine, but once I get home it's horrible! Even 2 miles away from my house, it's fine.
I called tmobile and they filed a ticket to look into the tower but could take up to 10 days.
Anyone have any ideas?
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Have any friends using the same tower?
Carbon Nightly | Kroz Hhue Theme | Crack Flasher

RonnieRuff said:
Have any friends using the same tower?
Carbon Nightly | Kroz Hhue Theme | Crack Flasher
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I'm going to ask a couple friends right now, my wife's phone is always getting the same speeds 20-40kbps download
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Mftek1 said:
At home my data is usually always 7mbps-15mbps.. This past week it's been horrible at home. At about 40kbps...
At work and everywhere else it's fine, but once I get home it's horrible! Even 2 miles away from my house, it's fine.
I called tmobile and they filed a ticket to look into the tower but could take up to 10 days.
Anyone have any ideas?
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Depending on where u live ur tower by ur house can be old and not updated so it slower or it can be a borrowed tower. The one by ur job must be in a city which they update first. For me the new lte modem sucks I went back to the old modem. It is more reliable.

BACARDILIMON said:
Depending on where u live ur tower by ur house can be old and not updated so it slower or it can be a borrowed tower. The one by ur job must be in a city which they update first. For me the new lte modem sucks I went back to the old modem. It is more reliable.
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Did you notice an improvement when you went back to the old modem?
What I don't understand is after the lte update, I was still getting good speeds till recently.
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Looks like none of my friends in my area have tmobile.
I'm still getting roughly 50kbps at home and 15mbps at work.. Smh
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I get horrible speeds as well and always have. I live in in a crowded area....Brooklyn, New York
Also, it's not like I'm underground or hidden from the outside world, I'm sitting right next to a window in a 6 story building. I've honestly had enough of t-mobile.. they always mess up my contract and have such ****ty speeds in my area. Not to mention, they directly lie to you over the phone and barely keep any promises. Oh and New York being one of the biggest cities isn't even one of the LTE cities that was upgraded. Sorry for this rant but I'm just kinda pissed with TMO.
Does anyone know if I can somehow check if my phone is set on the right antenna?

Mftek1 said:
Did you notice an improvement when you went back to the old modem?
What I don't understand is after the lte update, I was still getting good speeds till recently.
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Yes a big difference. I mostly use WiFi tho when out cause I have WiFi hot spots every place by me. But the lte modem is use less by me till lte is around here.

Use the old apn if you're having issues. There's already a thread on this. Search for it.
I have a feeling the new apn is speed limited so when lte fully rolls out the hspa network isn't overloaded. Most people don't notice a difference between 8mbps and 11mbps. Which was my difference. But if your difference is between 3-5mbps and 55kbps then it's probably a tower issue as well.
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GN2Rabbit said:
Use the old apn if you're having issues. There's already a thread on this. Search for it.
I have a feeling the new apn is speed limited so when lte fully rolls out the hspa network isn't overloaded. Most people don't notice a difference between 8mbps and 11mbps. Which was my difference. But if your difference is between 3-5mbps and 55kbps then it's probably a tower issue as well.
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Already tried the old apn in the other thread. No luck.
I'm thinking a tower issue, but I guess it's not? Tmobile contacted me today saying the towers around my area look good. So, there going to recheck since I get great data speeds everywhere else
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BACARDILIMON said:
Depending on where u live ur tower by ur house can be old and not updated so it slower or it can be a borrowed tower. The one by ur job must be in a city which they update first. For me the new lte modem sucks I went back to the old modem. It is more reliable.
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I wanted to go back to the old version 4.1.1, im not rooted and just updated via kies and noticed the slowness also. Any chance u could help how to revert to old version. Thanks
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jhobert said:
I wanted to go back to the old version 4.1.1, im not rooted and just updated via kies and noticed the slowness also. Any chance u could help how to revert to old version. Thanks
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+1
Hey bro where bouts in Los Angeles do you stay? Cause I'm close to there. What kind of speeds do you get?
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jhobert said:
I wanted to go back to the old version 4.1.1, im not rooted and just updated via kies and noticed the slowness also. Any chance u could help how to revert to old version. Thanks
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Believe it or not but a easy way would be to root and then revert back to stock 4.1.1. It will get u back to normal u will just have to not update till they fix all the bugs

If you're in a refarmed market just manually select the 1900 band as AWS might be too crowded. I have to do the same when I'm at my house as on AWS I get 500kbps while on 1900 I get no less than 12mbps
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minhajmsd said:
If you're in a refarmed market just manually select the 1900 band as AWS might be too crowded. I have to do the same when I'm at my house as on AWS I get 500kbps while on 1900 I get no less than 12mbps
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How do I do this?
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Try add old tmobile apn and chose auto 4g/3g/2g they change data speed on mine.
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Mm

Yes. Because we don't change the modem, just switch back and forth apn if in the are have lte tower just switch to lte apn (the original one).
This just my experience though.
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Mftek1 said:
+1
Hey bro where bouts in Los Angeles do you stay? Cause I'm close to there. What kind of speeds do you get?
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Im mainly on LAX area, speeds varies but usually I get 18 to 20 now ita down to 10 and lower, even if I change the apn and not use lte same slow speed compared to the old radio.
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Mftek1 said:
How do I do this?
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Dial *#2263# and then under WCDMA choose the 1900 band.
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[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.
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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.
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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.
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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.
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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.
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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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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
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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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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 :/
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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
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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.
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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
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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.
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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
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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
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So weird....figured you would know, but wasnt certain. Still, never heard of one doing that. Finicky huh?
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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?
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Yeah it is weird.. I tried with both touchwiz and aosp with the same result
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