Develop Bugs

[Q] why is wifi so horrible on AOSP ROM's?

I've tried about many ROM's such as miui, CM7, decks, etc.... I've had no luck, the wifi is just so horrible in many places where in a sense ROM I'd have perfect wifi or good, compared to poor wifi disconnecting after a while.
Thanks for reading Anyone have a solution?

I use CM7 and have absolutely no problem with my wifi. Have you tried CM7? If so, have you tried anything else?

UndeadCircus said:
I use CM7 and have absolutely no problem with my wifi. Have you tried CM7? If so, have you tried anything else?
Click to expand...
Click to collapse
Yeah I've tried it just bit ago and the past days as well but I'm sure it isn't a hardware issue because on nrg 3.5 rom from Nov18 my wifi works perfect where I would I couldn't get wifi signal at all on cm.

The problem is that sense doesn't show the right signal. Compare the speeds and you'll see what I mean
Sent from my PC36100 using Tapatalk

Crossrocker said:
The problem is that sense doesn't show the right signal. Compare the speeds and you'll see what I mean
Sent from my PC36100 using Tapatalk
Click to expand...
Click to collapse
It has nothing to do with speed, please read what I said... I lose signal on aosp ROM's on common areas that I get nearly excellent coverage in, note I tested this with airplane mode on to ensure my wifi doesn't disconnect and switch to 3G. A couple of other others on the miui thread have also said that same.

I'm using the new aosp ROM ice cream sandwich for my phone and wifi works like a charm. Using it now
Sent from my Nexus S 4G using XDA App

xyience said:
I'm using the new aosp ROM ice cream sandwich for my phone and wifi works like a charm. Using it now
Sent from my Nexus S 4G using XDA App
Click to expand...
Click to collapse
I'm guessing it has a new kernel? I will flash it tomorrow to see how it works, just to clarify, you are talking about the alpha build right?

CaliBoyPhillip said:
It has nothing to do with speed, please read what I said... I lose signal on aosp ROM's on common areas that I get nearly excellent coverage in, note I tested this with airplane mode on to ensure my wifi doesn't disconnect and switch to 3G. A couple of other others on the miui thread have also said that same.
Click to expand...
Click to collapse
I don't think you understand what I said. Sense shows the wrong wifi signal. It shows 3 bars for me while aosp shows 1. Aosp shows true signal because I am far from the router
Having trouble with AOSP? http://forum.xda-developers.com/showthread.php?t=1295702

Are you using the included kernel or flashing custom ones? While your signal may show lower, you shouldn't notice a drop in actual connectivity. Flashing an incompatible kernel, like a Sense kernel, can mess up your wifi.
I'm on MIUI right now showing a full wifi signal. I haven't used Sense in a very long time, but I don't remember getting better wifi reception while I was using it. I'm using Tiamat right now, maybe try a different kernel next time you flash AOSP and see if that helps. There are also a few tweaks you can do to help with your wifi signal, like changing the wifi scan interval in build.prop, but I haven't actually done anything like that since my signal is fine.
Supersonic Evo 4G | MIUI | Tapatalk

plainjane said:
Are you using the included kernel or flashing custom ones? While your signal may show lower, you shouldn't notice a drop in actual connectivity. Flashing an incompatible kernel, like a Sense kernel, can mess up your wifi.
I'm on MIUI right now showing a full wifi signal. I haven't used Sense in a very long time, but I don't remember getting better wifi reception while I was using it. I'm using Tiamat right now, maybe try a different kernel next time you flash AOSP and see if that helps. There are also a few tweaks you can do to help with your wifi signal, like changing the wifi scan interval in build.prop, but I haven't actually done anything like that since my signal is fine.
Supersonic Evo 4G | MIUI | Tapatalk
Click to expand...
Click to collapse
I've been sticking to the stock kernel that the ROM's have and savaged. I'll give the tiamat kernel a try with miui, what Tiamat version are you using so I can try it if not maybe I'll try getting a phone replacement to see if I might have a fault or evil mojo evo that hates aosp lol! hardware 004 here.

CaliBoyPhillip said:
I've been sticking to the stock kernel that the ROM's have and savaged. I'll give the tiamat kernel a try with miui, what Tiamat version are you using so I can try it if not maybe I'll try getting a phone replacement to see if I might have a fault or evil mojo evo that hates aosp lol! hardware 004 here.
Click to expand...
Click to collapse
I've heard that 004s can be problematic, I have a 003 and only get issues when I go a while without wiping fully. I'm using 4.1.0 right now, start there and maybe try other versions if you want. I ran SZ for a while and it started off smooth but eventually got laggy and unresponsive at times despite anything I would do (wiping caches, etc). Switched back to Tiamat and all has been working well since.
Give it a go, if it doesn't work for you then maybe it's some kind of hardware issue. Just to be sure, do a full wipe and try to avoid restoring anything unless you absolutely have to - definitely don't restore system data. Unfortunately you can't take your phone in to Sprint and get a replacement since your wifi is dodgy on AOSP. If it happened on stock then you might have a case.
Supersonic Evo 4G | MIUI | Tapatalk

plainjane said:
I've heard that 004s can be problematic, I have a 003 and only get issues when I go a while without wiping fully. I'm using 4.1.0 right now, start there and maybe try other versions if you want. I ran SZ for a while and it started off smooth but eventually got laggy and unresponsive at times despite anything I would do (wiping caches, etc). Switched back to Tiamat and all has been working well since.
Give it a go, if it doesn't work for you then maybe it's some kind of hardware issue. Just to be sure, do a full wipe and try to avoid restoring anything unless you absolutely have to - definitely don't restore system data. Unfortunately you can't take your phone in to Sprint and get a replacement since your wifi is dodgy on AOSP. If it happened on stock then you might have a case.
Supersonic Evo 4G | MIUI | Tapatalk
Click to expand...
Click to collapse
I've been using the tiamat for now and it seems more stable on wifi, funny though, the wifi seemed bad on the default miui kernel. I also moved my router to a higher place on a shevel with nothing steel or bad around it. Oh and don't worry my local sprint store in Los angeles is a big time Hispanic corporate... they replace devices for any complaining here to avoid issues with the people lol! I got to love it.
Edit: you are leet according to your post count ahaha.

check it out
CaliBoyPhillip said:
I've tried about many ROM's such as miui, CM7, decks, etc.... I've had no luck, the wifi is just so horrible in many places where in a sense ROM I'd have perfect wifi or good, compared to poor wifi disconnecting after a while.
Thanks for reading Anyone have a solution?
Click to expand...
Click to collapse
i used to have a problem like this, click in the link in my sig and go to the Q&A section in it and follow the steps on how to fix the wifi issue. if you have any questions or anything feel free to post it in that thread. hope i helped ^_^

[Q] after update wifi doesn't seem to work the same

I searched and didnt find anything that seemed to be the same topic.
I updated to 4.0.4, MoDaCo custom lr11 (lMM30B) from the factory ota 4.0.2 because it sucked. Now everything seems to work great but the wifi distance seems to have dropped. In places where my iphone and this phone on .2 had 3 to 4 bars on wifi the .4 now struggles to hold 1 bar. In my room with the router about 8 feet away I get 1 or 2 bars and only get all 4 when its within 2 feet. Any free wifi spot that I have saved and used to use perfectly is pretty much gone now. I wouldn't make a big deal of it but the area I am usually in most of the day is extended for me so I don't have 3 or 4g access.
Anyone know of a fix.
ty in advance

What baseband are you using? Most if not all custom roms exclude the baseband so you will need to update that manually.
Sent from my Galaxy Nexus using Tapatalk

same problem here! my radio signal, too, sucks a lot more compared to when i was on stock.
all started happening after rooting and flashing to aokp.

salivaman said:
same problem here! my radio signal, too, sucks a lot more compared to when i was on stock.
all started happening after rooting and flashing to aokp.
Click to expand...
Click to collapse
You need to change your baseband to a later version. There are issues if you have the old one while running a rom based on 4.0.3 or above.
Sent from my Galaxy Nexus using Tapatalk

yeah i have flashed to the latest one but the problem still persists on my aokp.
strangely i decided to flash a new rom which the bugless beast and so far it's working good.

Sorry, Baseband is
l515.09 V.EK05 / L515.EK02

I see the rom update Ir12 out there so I think I will update to it. I see a change log for a previous patch that addressed the signal stregth. Will post back if any changes. Hopefully will fix it.

salivaman said:
yeah i have flashed to the latest one but the problem still persists on my aokp.
strangely i decided to flash a new rom which the bugless beast and so far it's working good.
Click to expand...
Click to collapse
next time try flashing a different Kernel if your having issues and have tried flashing a different baseband. Faux or trinity seem to be best for me using AOKP

Nothing worked...
Tried several things from roms to just the radios and I couldnt get anything to upgrade. Guess I'll wait until .5 or something.

Anyone still have drop signal and drop data with 4.0.4 ?

Anyone still have drop signal and drop data with 4.0.4 ?
I have use following components more then 48hrs, and don't have drop signal and drop data any more.
Radio/Baseband：
cwm-radio-i9250-xxla2 (latest radio from Google)
Kernel：
franco.Kernel-r158 (best kernel on market)
ROM：
aokp_maguro_build-35 (latest aokp rom)

I was getting lots of drops after the update from 76D to 76I which I wasn't getting before the update I had to turn the phone of and on again to get the signal back. I was also getting reboots almost daily.
I downloaded the 76I full ROM from Google here, flashed it and now all is fine No re-boots, no signal drops.
oh - all stock except rooted and unlocked

It only drops Wi-Fi signal and sometimes HSPA as well when I'm using Bluetooth. Otherwise IMM76I has been rock solid. Love the new camera!
Sent from my Galaxy Nexus using XDA

Have you folks checked out the radio dump thread here on XDA.
http://forum.XDA-developers.com/showthread.php?t=1405345
I was having problem with my radio until I flashed UGLC1

diggmc said:
Have you folks checked out the radio dump thread here on XDA.
http://forum.XDA-developers.com/showthread.php?t=1405345
I was having problem with my radio until I flashed UGLC1
Click to expand...
Click to collapse
Same for me. I had the odd data drop on UGKL1. After the radio upgrade to UGLC1, i'm all good.

I've had one so with XXLA2 but then didn't have one with UGLC1. I flashed back to the first radio and so far has been going strong.
Sent from my Galaxy Nexus using XDA

hki_peter said:
Anyone still have drop signal and drop data with 4.0.4 ?
I have use following components more then 48hrs, and don't have drop signal and drop data any more.
Radio/Baseband：
cwm-radio-i9250-xxla2 (latest radio from Google)
Kernel：
franco.Kernel-r158 (best kernel on market)
ROM：
aokp_maguro_build-35 (latest aokp rom)
Click to expand...
Click to collapse
Updated :
After using above components for week, still have drop data problem and battery running very fast, e.g. battery fully charge 100% and then standby 8 hrs, after that battery going down to 80%, used 20% for 8 hrs standby
now rollback to Android 4.0.3 aokp-maguro-milestone-4 !

I was using aokp 35 and milestone 5 with several different kernels and modems and having data drop issues. I also tried Gummy with different kernels and modems and still had data drops.
I have since switched to CM9 nightlies in the thread by imfloflo and using the kernel and modem that comes with it and all is fine now.
I miss some of the features in aokp but at least i can send an MMS without having to reboot now.

*Unbelievably long Data Loading times. It takes 5 minutes to get my speedtest Ping.*

Hey. I flashed task's AOKP 8/26 rom and started experiencing strange loading times when on the internet. I just flashed Paranoid Android's rom today and I'm having the same result. SpeedTest app says I only have 40-100ms ping, but takes 5 minutes for it to actually find that data.
It says on the top that I am in '4G'
I don't think it's a throttling issue, I get 20 Mb/s down after speed test finishes
My ping is 95ms, but it takes about 4 or 5 minutes to finish the ping process
I am on the LTE settings that came with my ROM and they are the same as task's as well.
Upload speed is around .84, 4.0, 3.0 MB/s respectively
All Web-browsing, SpeedTest app, Google Music, and Play Store take forever to initially load
Any ideas on what it could be or what I could try? I have tried flashing the latest modem, same result as I had on task's and Paranoid's rom.

I was just about to post a thread on this same issue. Its driving me nuts!
I fist noticed the issue when I flashed from CM9 to CM10. Today I tried task's jb aokp ROM. Same issue. So I flashed cm9, it didn't get any better. Next I'm gonna try Odin back to stock. What's really odd to me is WiFi is unaffected. Only when on 3g/4g.
I've checked my imei, and its still correct. I've tried all 3 available modems.
I'm not to sure what else to try. Hopefully we can come up with a solution.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I had the same exact issues with tasks ROM and paranoid android too lol.. went back to wanam lite 1.3... the T-Mobile jb leak that was ported to our phone I had no issues with so I don't think it has anything to do with jb but I could be wrong...
Sent from my SGH-I747M using xda app-developers app

crewxp said:
Hey. I flashed task's AOKP 8/26 rom and started experiencing strange loading times when on the internet. I just flashed Paranoid Android's rom today and I'm having the same result. SpeedTest app says I only have 40-100ms ping, but takes 5 minutes for it to actually find that data.
It says on the top that I am in '4G'
I don't think it's a throttling issue, I get 20 Mb/s down after speed test finishes
My ping is 95ms, but it takes about 4 or 5 minutes to finish the ping process
I am on the LTE settings that came with my ROM and they are the same as task's as well.
Upload speed is around .84, 4.0, 3.0 MB/s respectively
All Web-browsing, SpeedTest app, Google Music, and Play Store take forever to initially load
Any ideas on what it could be or what I could try? I have tried flashing the latest modem, same result as I had on task's and Paranoid's rom.
Click to expand...
Click to collapse
Have you all with these issues posted these with the ROMS thread and brainstorm with other users of the ROM? You could try that. I personally heard great things about Task's ROMS and paranoids. To make sure, have you all tried wiping EVERYTHING in recovery and i mean wipe data, cache, dalvik cache, before flashing the ROM? You all might have to do that and then report back.
Sent from my SGSIII with the XDA Premium App

wow, wasn't expecting people with the same issue lol. I checked my Data usage also. Only at 4.1 out of 5 Gigs.
And yes Bruce, thanks for the suggestion. I wipe everything possible before every flash and always have. To the point where I even wipe things twice without realizing. (Cache, Dalvik, storage, system, cache, etc etc, even the eemc).

Tried basic apn settings as well as the 'phone' hdspa+ settings. same issue. reflashed over and over again, problem persists.

AT&T is beginning to work on a major LTE rollout from what I understand. I suspect this is a side effect of preparation. It would be interesting to see what going back to stock does.

Time_Zone said:
AT&T is beginning to work on a major LTE rollout from what I understand. I suspect this is a side effect of preparation. It would be interesting to see what going back to stock does.
Click to expand...
Click to collapse
That's what I thought too but flashing back to stock with Odin seemed to fix it. Problem started after installing 9-02 cm10.

how are you guys doing on this issue?
i flashed back to stock as well and my problems were fixed.
...really want a modded rom though. think it's a cm10 issue?

Same here. Flashed back yo stock because my h+ was behaving like 2g...seems to have helped quite a bit.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

I see similar behavior while stock, have managed to not root and flash yet. Although, in my case it isn't actually 5 minutes, but there's definitely latency, it just doesn't normally show up in the ping time.
A friend with his also at stock (never rooted nor flashed) mentioned he was seeing this as well...

I too have been getting problems. I thought initially that it was due to Task's ROM, but then i went back to CM10. And im still getting these issues. My girlfriend is running AOKP on her SG3 on Tmobile, and she's not getting data issues. Im thinking its a problem with AT&T.
I was about to go back to stock and see how that goes. But since 78c10 says he sees no improvement, then....idk wats going on. =(

stock not rooted. same here.. takes forever for things to load. the connection seems to stall for a bit then kick back in.. has to be something with att not the phone or roms etc..

Having the same issue. Just got done wiping everything and formatting my SD. Still VERY slow. Was going to try stock next.
On task's AOKP.
If anyone finds a solution please post.
Sent from my SGH-I747 using xda premium

Everyone here should post their issues and location because they've been rolling out LTE here in Philadelphia & it caused a lot of the same issues for me & others. It may be completely unrelated but it's a strange coincidence considering how much work they're doing on LTE right now.
Sent from my SGS3 using Apple's patents

It seems to be hit and miss here I just keep rebooting and then I'll get lucky one time and it will have a snappy data connection lol and its universal so I think its an ATT thing. I have been back and forth between stock, ktoonsez, and cm10 today and it isn't bias. I am in fort Irwin, CA right now and am straddling H and H+ but with solid bars... and sometimes I can't even load xda it will take like 5 minutes but what in really find strange is that I can stream Netflix...
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

A few of us in the Houston area are reporting data connection problems (reported in AOKP thread). Someone stated that Houston has been having problems with their LTE network... This would make sense, as i was at a friends house in the heights on Sunday, and we had full bars LTE and neither of us could connect or stream anything data wise. Now, while I'm on latest AOKP, he has a skyrocket, and is running stock ICS... So it has to be the network.
I live in the Woodlands, and ive been having the same issues up here too (just speed tested, & topped out at 9 mb/s - i remember getting upwards of 40 mb/s when I first got this phone). Really starting to piss me off.
Anyone in the Houston area herd anything from AT&T yet?
Sent from my SGS III

Up in Humble, have the same issues. Thought it was something I had done so wiped down everything and flashed tasks from again, then switched to a different one, but saw little improvement. Good to know its at&t maybe and not me screwing something up.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Just to let everyone know my issue was solved by going back to a 8/25 AOKP flash and whola, perfect again.
I would have to say that its related to the current builds. At least on mine.

dhostetter said:
Just to let everyone know my issue was solved by going back to a 8/25 AOKP flash and whola, perfect again.
I would have to say that its related to the current builds. At least on mine.
Click to expand...
Click to collapse
Hmm...tats weird. I wonder if this is really the problem. Has anyone tried this approach?

Cyanogenmod 10.1

I am on CyanogenMod nightly and am loving the ROM except for the flickering. It was said to disable hardware overlays to fix it. As dumb as it nay sound idk how to do that and moreover don't know what else that will effect. Can someone enlighten me?
Sent from my SAMSUNG-SGH-I747 using xda premium

gmac1990 said:
I am on CyanogenMod nightly and am loving the ROM except for the flickering. It was said to disable hardware overlays to fix it. As dumb as it nay sound idk how to do that and moreover don't know what else that will effect. Can someone enlighten me?
Sent from my SAMSUNG-SGH-I747 using xda premium
Click to expand...
Click to collapse
Go to about phone, click build number a couple times until it says you're now a developer, then go to developer options and disable it there. And it won't affect anything.

CM 10.1 and AOKP Reception Issues (dBm & asu)
I have tried to find information concerning this issue for sometime now, but can't seem to find any information concerning it. There may very well be, but not in a form that I recognize it as the solution or as the source of my issue...
Any time I install a CM 10.1 based rom or AOKP rom onto my GS III I747 (AT&T) they run very smooth for the most part. My only concern is that the signal fluctuates a great deal from nearly a full signal to nothing sometimes. When I go to Settings>about device>status I see a crazy dBm and asu. The dBm is around "2456543" and the asu is always "255." Before and when I return to the stock rom, the signal strength is fine and registers correct numbers. Is this a known issue, or something I am doing wrong and can correct?
Just to get a few questions out of the way, these are the steps I took to install these roms:
1 Used latest cwm;
2 formatted cache;
3 dalvik wipe
4 reset and factory wipe;
5 format system;
6 flash rom from sd card;
7 flash gapps;
8 reboot
I have even tried wiping dalvik and cache again after installing gapps, but I still get the same thing.

jpoejr said:
I have tried to find information concerning this issue for sometime now, but can't seem to find any information concerning it. There may very well be, but not in a form that I recognize it as the solution or as the source of my issue...
Any time I install a CM 10.1 based rom or AOKP rom onto my GS III I747 (AT&T) they run very smooth for the most part. My only concern is that the signal fluctuates a great deal from nearly a full signal to nothing sometimes. When I go to Settings>about device>status I see a crazy dBm and asu. The dBm is around "2456543" and the asu is always "255." Before and when I return to the stock rom, the signal strength is fine and registers correct numbers. Is this a known issue, or something I am doing wrong and can correct?
Just to get a few questions out of the way, these are the steps I took to install these roms:
1 Used latest cwm;
2 formatted cache;
3 dalvik wipe
4 reset and factory wipe;
5 format system;
6 flash rom from sd card;
7 flash gapps;
8 reboot
I have even tried wiping dalvik and cache again after installing gapps, but I still get the same thing.
Click to expand...
Click to collapse
Swap your modem. I think LK3 is the one for AT&T but you can try some others too. Just look for the modem thread in the Dev section.

BWolf56 said:
Swap your modem. I think LK3 is the one for AT&T but you can try some others too. Just look for the modem thread in the Dev section.
Click to expand...
Click to collapse
Awesome and thanks. I found the thread that you referenced... Is it just trial and error from here or is there a way to determine which modem a custom rom was build for?

jpoejr said:
Awesome and thanks. I found the thread that you referenced... Is it just trial and error from here or is there a way to determine which modem a custom rom was build for?
Click to expand...
Click to collapse
Pretty much. It's quite hard to suggest modems as they act different on every phone and in every area.

BWolf56 said:
Pretty much. It's quite hard to suggest modems as they act different on every phone and in every area.
Click to expand...
Click to collapse
I tried every modem out there and still the same issue with "23542568 dbm 255 asu" and the signal randomly drops in and out. There has to be a known cause or something I can do, huh? This is such a shame because I found the perfect cm 10.1 based rom that I want to use but I can't. There has to be a solution... Can anyone help?

jpoejr said:
I tried every modem out there and still the same issue with "23542568 dbm 255 asu" and the signal randomly drops in and out. There has to be a known cause or something I can do, huh? This is such a shame because I found the perfect cm 10.1 based rom that I want to use but I can't. There has to be a solution... Can anyone help?
Click to expand...
Click to collapse
I have the same issues on my AT&T S3 when I flash CM10.1 based roms. I can be 5 feet from my wifi router and only have 3/4 signal. On TouchWiz roms, I have a full signal. When I'm 15-20 feet away from the router I have 3/4 signal strength on TW roms, and 1/2 signal on CM roms. The same issue goes for my cell signal. I don't have a very strong cell signal to begin with (typically 2 sometimes 3 bars on TW roms) and it's usually at least 1 bar less on CM roms than TW roms. My bedroom is just about the farthest point in my house from the router so having a weak signal (wifi or data connection) kills my battery life overnight (at least 10%-12%) on CM roms. This happens when connected to wifi OR data and it happens on every CM rom I've flashed.
Instead of flashing a different modem, should we try flashing a different kernel?? Any other suggestions? Or is this a know performance issue in the difference between CM and TW roms?

The flickering is quite likely an issue with auto brightness. I think it's an issue even on the nexus devices. Set it at a usable level and you should be okay.
Sent from my SAMSUNG-SGH-I747 using xda premium