Develop Bugs

[Q] Wifi Signal on AOSP ROMS

I have TERRIBLE Wifi signal strength on any AOSP ROMs (yes, I tested and radios, etc. are up to date). Anyone have this same issue and have a fix?? Sense ROMs are fine for me. I really want to use a few of these, but can't get over the terrible Wifi service.

oubravs2b said:
I have TERRIBLE Wifi signal strength on any AOSP ROMs (yes, I tested and radios, etc. are up to date). Anyone have this same issue and have a fix?? Sense ROMs are fine for me. I really want to use a few of these, but can't get over the terrible Wifi service.
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I've been saying this for ages, hands down the aosp wifi sig can't compare to a sense rom. I believe the devs all know this and been aware. Question is, how come no one has done anything about it :-/. One of the main reasons I'm back to sense.
Sent from my Evo in your sisters closet using Tapatalk

Don't hate the devs they are the reason there is aosp roms
But I have not noticed this yet will try this
Sent from my gingerbread evo 4g

cesarcerros31 said:
Don't hate the devs they are the reason there is aosp roms
But I have not noticed this yet will try this
Sent from my gingerbread evo 4g
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Definitely not having on ANY devs if that's what it sounded like I apologize. But I believe many are aware of the ****ty wifi drivers with aosp roms that's all I was saying.
Sent from my Evo in your sisters closet using Tapatalk

I have this problem as well. My AOSP will show 2 bars when three is full, even when one foot away from my router. Same goes for cell signal. If i am sitting at home i get about 2 bars on Sense, 0 on AOSP. And its not the "AOSP tells you the true signal" bs. When on sense it operates just fine. Restore an AOSP rom, no signal, no calls. It sucks, but i bear with it cuz i love that CM7. With that said, I sure later versions will be even better, and will address the issue. It seems pretty widespread.

Bump... same issue here.

oubravs2b said:
I have TERRIBLE Wifi signal strength on any AOSP ROMs (yes, I tested and radios, etc. are up to date). Anyone have this same issue and have a fix?? Sense ROMs are fine for me. I really want to use a few of these, but can't get over the terrible Wifi service.
Click to expand...
Click to collapse
I've noticed the same thing. I'm assuming the way Sense ROMS are woven into the framework of the phone is the reason for the difference in signal strength. I love AOSP roms but the signal quirks are just too much for me at this point to make the switch permanent.

ASOP, AKOP, CM10 and wimax

I would like to have to have just a normal Jelly Bean 4.1 or know 4.2.1 experience of my phone. I tried out the Pacman rom and CM10 rom. Both have the same issue. My 4g wimax speeds go from 10megs to 750kbps.
Is there something that I missing or is everyone just fine with horrible speeds? I even tried the temp boot and updated my PRL and such.
Is there anyone running a stock android 4.1 or 4.2.1 with 10 meg wimax speeds? or does this not exists.
currently im running TW jelly bean FL16 rom....perfect wimax. so its not JB.
~also which I found annoying was this was the same issue on my piece of crap evo3d. wimax would go from 10megs down to 750kbps on every ASOP, AKOP, CM9 and up.

spigen said:
I would like to have to have just a normal Jelly Bean 4.1 or know 4.2.1 experience of my phone. I tried out the Pacman rom and CM10 rom. Both have the same issue. My 4g wimax speeds go from 10megs to 750kbps.
Is there something that I missing or is everyone just fine with horrible speeds? I even tried the temp boot and updated my PRL and such.
Is there anyone running a stock android 4.1 or 4.2.1 with 10 meg wimax speeds? or does this not exists.
currently im running TW jelly bean FL16 rom....perfect wimax. so its not JB.
~also which I found annoying was this was the same issue on my piece of crap evo3d. wimax would go from 10megs down to 750kbps on every ASOP, AKOP, CM9 and up.
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Some have said that its because there is no kernel source for JB. So aosp roms don't have kernel source for the kernels they use.

BluesRulez said:
Some have said that its because there is no kernel source for JB. So aosp roms don't have kernel source for the kernels they use.
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So when the developer of the roms say 4g is working, its actually not?

spigen said:
So when the developer of the roms say 4g is working, its actually not?
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Click to collapse
No. It is working.
Tbh I never fully trust speedtest.net servers. For example.. I have 2 servers in columbus, oh and 1 in radnor,oh near me. Columbus servers are 50 miles closer to me than radnor ones. Still I always get 2-3 times faster results on radnor servers.
So in reality I have a faster throughput but I am misled by server caps. Now i know this is not the case because obviously on a tw rom you get much faster results.
What I am trying to say here is that when I am on 4g on non tw roms, 4g is much faster than 3g even though speedtests tells another story for me. 4g and 3g speedtests give me similar results. I also get faster tranafer rates when downloading files when on 4g.
So my guess always has been that on non tw jb roms, speedtests are not measured correctly.
Sent from my SPH-D710 using xda app-developers app

BluesRulez said:
No. It is working.
Tbh I never fully trust speedtest.net servers. For example.. I have 2 servers in columbus, oh and 1 in radnor,oh near me. Columbus servers are 50 miles closer to me than radnor ones. Still I always get 2-3 times faster results on radnor servers.
So in reality I have a faster throughput but I am misled by server caps. Now i know this is not the case because obviously on a tw rom you get much faster results.
What I am trying to say here is that when I am on 4g on non tw roms, 4g is much faster than 3g even though speedtests tells another story for me. 4g and 3g speedtests give me similar results. I also get faster tranafer rates when downloading files when on 4g.
So my guess always has been that on non tw jb roms, speedtests are not measured correctly.
Sent from my SPH-D710 using xda app-developers app
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i live in downtown Cincinnati with perfect 4g signal. Speedtest is one way to check. Another is by trying to download things.it took a couple mins to download speedtest. I mean its like being on 56k modem or something. So no 4g is not working correctly. it might be working, but at 1/12 of the speed its suppose to.

The source for aosp kernel was made from ics kernel source which apparently has a buggy 4g problem... That's why custom kernels also have throttled 4g. Hopefully after jb source drops somebody will make another kernel with the new source...
Sent from my SPH-D710 using xda premium

It's an issue with source built kernels. Nobody really knows why it happens hut it is what it is. Repacked kernels are where it is if you want 4g speeds to not be absymal.
Sent from my SPH-D710

lilotimz said:
It's an issue with source built kernels. Nobody really knows why it happens hut it is what it is. Repacked kernels are where it is if you want 4g speeds to not be absymal.
Sent from my SPH-D710
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What roms come with repacked kernels? Does that mean just modded touchwiz based roms?

Service issues, what would you guys recommend?

Well I've been on AOSP ROMs for a couple of months now, and I love everything about them. The only thing I HATE is the service problems that come with them. So I switched back to the stock TW rom and updated my PRL and profile, my PRL went from 25012 to 25014 and my service at home (with an airave, mind you) was 3G and full bars. Thinking I had it all settled, I went back to AOSP and I'm still getting the service issues I had before: either I'm getting 1x + full bars, or 3G and 1-3 fluctuating bars, usually steady at 2 (again, this is on an airave, and my girlfriend with her iphone 5 has full 3G bars at my house). I've flashed every radio under the sun but they seem to make no noticeable difference.
Any ideas/suggestions? I'm not opposed to switching back to a TW rom...but I'd rather stay on AOSP. It seems to me that I have no choice though.

sevenpioverthree said:
Well I've been on AOSP ROMs for a couple of months now, and I love everything about them. The only thing I HATE is the service problems that come with them. So I switched back to the stock TW rom and updated my PRL and profile, my PRL went from 25012 to 25014 and my service at home (with an airave, mind you) was 3G and full bars. Thinking I had it all settled, I went back to AOSP and I'm still getting the service issues I had before: either I'm getting 1x + full bars, or 3G and 1-3 fluctuating bars, usually steady at 2 (again, this is on an airave, and my girlfriend with her iphone 5 has full 3G bars at my house). I've flashed every radio under the sun but they seem to make no noticeable difference.
Any ideas/suggestions? I'm not opposed to switching back to a TW rom...but I'd rather stay on AOSP. It seems to me that I have no choice though.
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Click to collapse
Are you certain about the strength of your signal on TW? I know that the original stock TW does a little trick in making you think that you have higher signal than you actually do (showing 3G when you really only have 1x... showing 4 bars when you really don't have a strong signal). It's best to compare the actual signal strength in dB (under System Settings - About Phone - Status). I know some custom TW Roms fixed this so that it's consistent with AOSP, but I don't know which ones have and which haven't (and if it's not listed in their features, it's hard to tell without diving into some code). I'm not sure if the iPhone does the same trick as stock TW does, but I know my wife's iPhone 4S typically gets worse reception than my GS3, so anecdotally, it doesn't.
On the other hand, if you're experiencing considerably slower speeds on AOSP compared to TW, it might be cause to stick with TW. Now-a-days, TW is creeping closer to getting the features of AOSP, so it might be time to switch back.

topherk said:
Are you certain about the strength of your signal on TW? I know that the original stock TW does a little trick in making you think that you have higher signal than you actually do (showing 3G when you really only have 1x... showing 4 bars when you really don't have a strong signal). It's best to compare the actual signal strength in dB (under System Settings - About Phone - Status). I know some custom TW Roms fixed this so that it's consistent with AOSP, but I don't know which ones have and which haven't (and if it's not listed in their features, it's hard to tell without diving into some code). I'm not sure if the iPhone does the same trick as stock TW does, but I know my wife's iPhone 4S typically gets worse reception than my GS3, so anecdotally, it doesn't.
On the other hand, if you're experiencing considerably slower speeds on AOSP compared to TW, it might be cause to stick with TW. Now-a-days, TW is creeping closer to getting the features of AOSP, so it might be time to switch back.
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I should've added that I did compare signals under status and my signal reading was true. But I suppose you're right, time to learn all about TW roms.
Sent from my SPH-L710

sevenpioverthree said:
I should've added that I did compare signals under status and my signal reading was true. But I suppose you're right, time to learn all about TW roms.
Sent from my SPH-L710
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There is one thing you can try (obviously Nandroid up before trying it). There's a thread that talks about poor 3G speed and the things you can do to fix it (not limited to AOSP or TW Roms, if I recall correctly). Here's the thread. I personally wouldn't flash the zip in the thread without look through it (I think it replaces your build.prop), but I would follow the steps in the linked thread to see if those tweaks will work.

So should I try the tweaks first and then resort to the zip?
Sent from my SPH-L710

sevenpioverthree said:
So should I try the tweaks first and then resort to the zip?
Sent from my SPH-L710
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I'm wary of the zip because I'm not sure if it's for TW or AOSP roms (doesn't say in the thread). If I recall correctly, the zip is just a modified build.prop sysctl.conf which includes the tweaks from his linked thread. He just made the flashable zip so people won't have to mess around inside system files. But since I don't know if it's specifically for AOSP, I'd personally be a little wary of it.
Edit: Since it's not a build.prop and is instead a sysctl.conf file, it might be safe to flash. I haven't looked too much into this recently, but I'd less wary since it's not a build.prop file you're flashing.

topherk said:
I'm wary of the zip because I'm not sure if it's for TW or AOSP roms (doesn't say in the thread). If I recall correctly, the zip is just a modified build.prop which includes the tweaks from his linked thread. He just made the flashable zip so people won't have to mess around inside system files. But since I don't know if it's specifically for AOSP, I'd personally be a little wary of it.
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I see, well thanks a bunch topherk I'll do my research and see how it goes
Sent from my SPH-L710

Hey OP... I don't know how phone savy you are lol, but........ here ya go.
Scroll half way down and do those tweaks.
---------- Post added at 02:19 PM ---------- Previous post was at 02:19 PM ----------
topherk said:
On the other hand, if you're experiencing considerably slower speeds on AOSP compared to TW, it might be cause to stick with TW. Now-a-days, TW is creeping closer to getting the features of AOSP, so it might be time to switch back.
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Like which features?! I've yet to see that lol.

Joe0113 said:
Hey OP... I don't know how phone savy you are lol, but........ here ya go.
Scroll half way down and do those tweaks.
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Click to collapse
I'm guessing I use the "signal tweaks"?

sevenpioverthree said:
I'm guessing I use the "signal tweaks"?
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Do this at your own risk and follow EVERY SINGLE STEP.. Read, read and read some more. And when you think you're done reading, just do it one more time! And yes, signal tweaks and you can even do NetSpeed Tweaks as well to increase data speeds.

You could use a tw ROM with morphology. I have that and the aosp launcher.
Sent from my SPH-L710 using xda app-developers app

WindroidApps said:
You could use a tw ROM with morphology. I have that and the aosp launcher.
Sent from my SPH-L710 using xda app-developers app
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Click to collapse
I might do that, and I did confirm that my TW rom isn't playing a trick on me, the readings are true. On AOSP I'm usually at 80-100 dbm and 2 asu, whereas on TW I was at 75 dbm and 8/16 asu. This makes me sad ): I tried every tweak mentioned in this thread but to no avail. Oh well, TW isn't so bad, I just really like AOSP.

sevenpioverthree said:
I might do that, and I did confirm that my TW rom isn't playing a trick on me, the readings are true. On AOSP I'm usually at 80-100 dbm and 2 asu, whereas on TW I was at 75 dbm and 8/16 asu. This makes me sad ): I tried every tweak mentioned in this thread but to no avail. Oh well, TW isn't so bad, I just really like AOSP.
Click to expand...
Click to collapse
TW always tells you your 1X signal strength even under status in about phone. AOSP is telling you your 3G or LTE strength so that's why it seems different. Download SignalCheck from the Play store & it should tell you your actual signal strengths.

[Q] LTE on all AOSP ROMS

One reason that's kept me from flashing an AOSP rom and keeping it is the latest strength issue. I live in the middle of no where basically but some how I have lte which averages 10+mbps on two but drops to under 2mbps on every aspect romantic I've tried. I there a reason for this and any fixes available?
Sent from my SPH-L710 using xda app-developers app

I'm curious to see what others say about this. Others have said that AOSP ROMs simply display your true signal strength and that's why people think they have weaker signal but you are actually experiencing much weaker signal.
Just for more clarification, if you use an AOSP rom and have weak signal, can you just flash a tw rom and instantly have normal signal?

hewey_mx5 said:
I'm curious to see what others say about this. Others have said that AOSP ROMs simply display your true signal strength and that's why people think they have weaker signal but you are actually experiencing much weaker signal.
Just for more clarification, if you use an AOSP rom and have weak signal, can you just flash a tw rom and instantly have normal signal?
Click to expand...
Click to collapse
Once I go back to tw my bars average 3-4 and speed tests are in the10+mbps range
Sent from my SPH-L710 using xda app-developers app

AOSP roms display your true voice/evdo signal, that's different from LTE/data.
The reason users tend to get less mobile data performance on AOSP is because, essentially, AOSP is ported to our device and to any device that is not a Nexus. That's why we have issues, because people like CM and preludedrew (evervolv) have to work with the files provided to us by the OEM, files which are not compiled for AOSP, but for whatever proprietary UI came with the phone (Sense, Touchwiz, Motoblur, LG UI, etc etc).
However, now with the leak from the S4 Google Edition, we should see all around improvements to the US SGS3 CM10.1 and other 4 2.2 AOSP roms.
See my post here for the reason behind that: http://forum.xda-developers.com/showthread.php?p=43084900

CNexus said:
AOSP roms display your true voice/evdo signal, that's different from LTE/data.
The reason users tend to get less mobile data performance on AOSP is because, essentially, AOSP is ported to our device and to any device that is not a Nexus. That's why we have issues, because people like CM and preludedrew (evervolv) have to work with the files provided to us by the OEM, files which are not compiled for AOSP, but for whatever proprietary UI came with the phone (Sense, Touchwiz, Motoblur, LG UI, etc etc).
However, now with the leak from the S4 Google Edition, we should see all around improvements to the US SGS3 CM10.1 and other 4 2.2 AOSP roms.
See my post here for the reason behind that: http://forum.xda-developers.com/showthread.php?p=43084900
Click to expand...
Click to collapse
Wow you guys work hella fast I might even flash some nightlies now
Edit: If one wanted to could they simply place these files in any AOSP rom they wanted or would it be best to just wait for the dev to do so?
Sent from my SPH-L710 using xda app-developers app

Having more bars on tw is apparently normal. Something about the way it displays the signal is different than the way AOSP roms do it. I don't know all the technical aspects of it. IIRC the bars aren't an indication of how strong your data is though. I've been in places where I had "full bars" but no data at all.
Have you tried liquidsmooth? It's my daily and haven't had problems with LTE. My house is out in a hilly area and don't get LTE there but I do at my friends house and the speed hasn't been any slower there as far as I can tell. 22mb down usually there.
Edit: CNex to the rescue lol

islanda73 said:
Wow you guys work hella fast I might even flash some nightlies now
Sent from my SPH-L710 using xda app-developers app
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All thanks go to SamMobile for providing that leak lol.
Someone in the CM thread commented that after flashing the nightly with the S4GE blobs, their 3G went from around 500kbps to 1500kbps...but of course ymmv (your mileage may vary).

Sadly the issue still remains the same
Sent from my SPH-L710 using xda app-developers app

[Q] Suggestions for modem?

I live in the Baltimore, MD area and I'm using Boost Mobile. I'm running JellyBAM android 4.2.2 currently, and plan to switch to CM11 if/when data is working.
Any suggestions for best modem for 3g speed/reception?

BLuFeNiX said:
I live in the Baltimore, MD area and I'm using Boost Mobile. I'm running JellyBAM android 4.2.2 currently, and plan to switch to CM11 if/when data is working.
Any suggestions for best modem for 3g speed/reception?
Click to expand...
Click to collapse
Just try different ones... make sure they are ICS modem's though or you won't have data.
Remember... just because we all have the same device... doesn't mean that they run the same. So what works best for you might not work best for another..
Good luck.

Gil81 said:
just because we all have the same device... doesn't mean that they run the same. So what works best for you might not work best for another..
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Click to collapse
I've heard this before, and it doesn't make much sense. Yes, location matters, but two of the same phone in the same location will likely produce negligible differences in reception when using the same modem.

BLuFeNiX said:
I've heard this before, and it doesn't make much sense. Yes, location matters, but two of the same phone in the same location will likely produce negligible differences in reception when using the same modem.
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Click to collapse
You sound upset... that wasn't my intention buddy. But I can tell you that I have had two epic's and my first one hated JB modem's and my current one gets great signal on JB modem's... and yes it's the same area and no new towers.
Maybe it was the difference in ICS and JB, I'm not sure.
But fl24 is the newest ICS modem and that's what I get the best signal with when I'm running any cm/aosp/aokp based roms... and I've tried quite a few different modems. That was in the Chicago area and Springfield area... both in Illinois.
Also... this current epic runs aokp roms great.. where my first one wouldn't... all chips are not created equal or maybe I just didn't now what I was doing then...
Hope somebody in youre area jumps in with some info for you. Good luck..

Gil81 said:
You sound upset... that wasn't my intention buddy. But I can tell you that I have had two epic's and my first one hated JB modem's and my current one gets great signal on JB modem's... and yes it's the same area and no new towers.
Maybe it was the difference in ICS and JB, I'm not sure.
But fl24 is the newest ICS modem and that's what I get the best signal with when I'm running any cm/aosp/aokp based roms... and I've tried quite a few different modems. That was in the Chicago area and Springfield area... both in Illinois.
Also... this current epic runs aokp roms great.. where my first one wouldn't... all chips are not created equal or maybe I just didn't now what I was doing then...
Hope somebody in youre area jumps in with some info for you. Good luck..
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Click to collapse
No, not upset. My apologies if I came off that way. I work with radios on embedded devices and my experience has been that they all perform within <1% difference of each other when running the same software. Now, it's quite possible to have bad chips, but then all sorts of things go wrong and no amount of software can adequately compensate.
My guess is that ICS vs JB did make the difference for you. And as for AOKP roms running better, maybe it was a different version of the ROM?
Thanks for the input about FL24. I'll try it out.

I have two Epic 4G Touchs in my possession
One of them I can't even get data working on Any AOSP ROMS even though I was using ICS and GB modems.
I now use it as a media device so it doesn't really matter.
My daily driver is the complete opposite.
I get the best reception using FC14 modem.
Unless someone lives in your area with the same phone, they can tell you which modem works best for said area.