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I'm curious if someone out there in dev land can explain why custom ROM (ics/jb) 4g is so poor compared to stock ROM 4g.
For example, the FI03 stock ROM or any GB ROM will consistently get 8-15mb/s...whereas custom ROMs like CM9/10 have speeds of 600kb/s max. (Some claim the FI03 modem fixes this issue but this has proven to be untrue by many users)
I know I'm not alone in this category as many other users are report the same speeds as well. Is it kernel related?
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I believe something in the kernel is throttling 4G. I know chris41g is working on it with his kernel, which is why 4G has been borked in his latest experimental CM9 builds.
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Dchibro is correct - it is the the kernel - not the rom - not the modem.
Both above correct, but it is more than just the Kernel .. I asked in a FI03 thread about the removal of the cap and was told the changes are in kernel and in several places in the ROM itself too.
Just happened to me after flashing a new kernel in.
Went from getting 8mbps down in the office to 1.1mbps lol. I think I'll be going back to stock.
Does anyone know when it started getting throttled though. I was sure 4g was fine on cm9 up until a couple months ago....
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I just flashed back to stock FI25 kernel from depository and my 4G speeds are back to normal. Was previously on AGAT's.
Theres a vid on youtube that the CM team did and I believe Cyanogen talked about Sprint phones in general saying they was harder to maintain due to there set up with 4g radios.
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yeah I was getting low 3gish speeds on 4g with agat 5.4 kernel with FI03 stock rooted rom. Switched to his FI03 kernel repack and 4g speeds went back up.
I think it's only really been fixed since FI03 came out and 5.4 isn't based on FI03 source?
I get 8.8 MB/s with BluKuban
Anyone know which kernal to use for CM10 or any JB Roms that wouldn't screw up 4g speeds?
cashrevert said:
Anyone know which kernal to use for CM10 or any JB Roms that wouldn't screw up 4g speeds?
Click to expand...
Click to collapse
There's no kernel compatible for CM10 no source yet.
Sent from my SPH-D710 using Tapatalk 2
ideseth said:
I get 8.8 MB/s with BluKuban
Click to expand...
Click to collapse
But on stock rom you get 16 mbs
Sprint Samsung Galaxy S II Epic 4G Touch w/ Stock 4.0.4
Xperia Play R800X w/ supercharged stock 2.3.3 and doomkernel
I've seen in the Epic4g forums that they've gotten the Nexus S modem and RIL to work with their device. From what I understand, the AOSP Nexus modem works better on custom AOSP roms for the Epic4g than the stock ones. Any idea if this would be feasible on our device, maybe from the GNex?
I don't know, just a blind shot in the dark. Below is a link to a thread discussing patches to make this work, if anybody wants to look a little further into it.
http://forum.xda-developers.com/showthread.php?t=1842037
Sent from my SPH-D710 using Tapatalk 2
I actually just flashed Blukuban to see what kind of speeds I would get and I am still get 300 to 400 kbps.
The only roms I get good 4g are GB roms. All JB and ICS I get no more than 700kbps.
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Has any progress been made or is something those of us who are affected will have to deal with?I just tried MIUI, CM 10, and sbrissens aosp and I'm still at the same speed.
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gatesmarch123 said:
Has any progress been made or is something those of us who are affected will have to deal with?I just tried MIUI, CM 10, and sbrissens aosp and I'm still at the same speed.
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Click to expand...
Click to collapse
welcome to sprint
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Hey been using different roms and kernels but my phone keeps rebooting itself plz help using sprint sgs 2
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Bigby2727 said:
Hey been using different roms and kernels but my phone keeps rebooting itself plz help using sprint sgs 2
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Click to expand...
Click to collapse
If everything else seems to be working fine, and this is happening on all ROMs, then it is probably either your phone or the battery.
Take the battery out and spin it on the table. If it spins like a top that means it's puffed. A puffed battery is shot get new one. In fact, a puffed battery is potentially dangerous, it means it's internally damaged. It's possible for them to catch fire.
If it's not the battery, it's the phone, get a warranty replacement.
My wife's phone was doing this on multiple ROMs (including stock), and the battery is fine. We have a new phone on the way right now in fact.
Sent from my SPH-D710 using xda app-developers app
ideseth said:
I get 8.8 MB/s with BluKuban
Click to expand...
Click to collapse
How is that even possible? I'm in a high 4g coverage area and the fastest 4g I've gotten was 2.2ish, with blu kuban as well.
Hello,
I have the VZW GS3 which has a million ROM's, sadly this doesn't seem to be the case here on the sprint phone.l
The most important thing is that everything works , thats it.
Are there any good stable ROM's out there without any built in themes?
Does anyone make TW ROM's? I havnt seen any on here
Lastly, what does LG8 mean?
The stock room is very stable imo. I have tried custom rooms on my evo in the past but have not felt the need here yet.
LG8 is the build number of the stock Rom that was the latest into a few weeks ago. The current release is LI3.
Sent from my SPH-L710 using xda app-developers app
dpaine88 said:
Hello,
I have the VZW GS3 which has a million ROM's, sadly this doesn't seem to be the case here on the sprint phone.l
The most important thing is that everything works , thats it.
Are there any good stable ROM's out there without any built in themes?
Does anyone make TW ROM's? I havnt seen any on here
Lastly, what does LG8 mean?
Click to expand...
Click to collapse
So your girlfriend has Sprint?
LG8 is the firmware version. This version is old. The latest official release is LI3. There are leaked firmware versions up to LIH now. This is Samsung's way to identify when the firmware versions were made. L=2012 I=September, 3=3rd. It goes up to 9 before it goes into letters to represent 10th day and higher.
As for Roms, there are quite a few tw roms available. Check out the android development section. There you will find both ice cream sandwich roms as well as the jelly bean leaks. I'm running jelly bomb domination jelly bean Rom. It's perfect!!!! Great battery life, no issues at all, and its fully themed.
If you want ICS I'd recommend team sonic free gs3 Rom.
Sent from my SPH-L710 using xda premium
Blazer rom jelly Bean V1.9 is the most stable and zero lag on bluetooth stream. update to LIH n u are good.
dpaine88 said:
Hello,
I have the VZW GS3 which has a million ROM's, sadly this doesn't seem to be the case here on the sprint phone.l
The most important thing is that everything works , thats it.
Are there any good stable ROM's out there without any built in themes?
Does anyone make TW ROM's? I havnt seen any on here
Lastly, what does LG8 mean?
Click to expand...
Click to collapse
Most of the roms in the dev forum are touchwiz roms. Almost all of these are stable, even jellybomb (based of leaked jellybean rom) is stable. I've had 0 issues so far, and it feels faster. Sonic, blazer, and many others are stable as well. I like jellybomb though. Most of the bugs will be in the AOSP roms (or miui). These were built from the ground up without Samsungs work. They'll be in the original development mostly.
I've been running blazer for weeks now, on the ics 1.9 version currently and no issues what-so-ever.
Sent from my SPH-L710 using xda premium
Go here: http://forum.xda-developers.com/showthread.php?p=28116723
This is the stock, rooted, LI3 ROM. No themes, most recent official ICS build, you're good to go.
Samsung Galaxy S3
OdexedBlue ROM
LI3 Stock Kernel
LIF Baseband
XDA Premium - Support our developers, modders, & themers!
Thanks guys!!
I appreciate you guys clearing it up for me. I have not been on XDA for a while and didn't see there are two separate Dev sections now. I was only looking at one of them.
I just have a question regarding Jelly Bean. I run the VZW version myself and we have some major data issues when we run AOSP JB, like data drops, not connecting despite showing full bars etc. Is this an issue at all on the Sprint version ? Are there any issues related to JB?
dpaine88 said:
Thanks guys!!
I appreciate you guys clearing it up for me. I have not been on XDA for a while and didn't see there are two separate Dev sections now. I was only looking at one of them.
I just have a question regarding Jelly Bean. I run the VZW version myself and we have some major data issues when we run AOSP JB, like data drops, not connecting despite showing full bars etc. Is this an issue at all on the Sprint version ? Are there any issues related to JB?
Click to expand...
Click to collapse
As long as you follow directions and flash the modem that they tell you to, it works perfectly
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I thought the best TWiz ROM was Team Sonic FreeGS3 and ran that for the longest until i stumbled upon Blackbean ROM, which is a Jelly Bean ROM, and haven't gone back to TWiz ever since.
The TW JB LIH leak is very nice, very stable, and used by many as a daily driver.
Samsung Galaxy S3
OdexedBlue ROM
LI3 Stock Kernel
LIF Baseband
XDA Premium - Support our developers, modders, & themers!
Try the jellybean jelly bomb rom
If you want stable tw rom just use blazer its not themed at all and super super stable
Sent from my SPH-L710
smac7 said:
As long as you follow directions and flash the modem that they tell you to, it works perfectly
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Click to expand...
Click to collapse
Well, quite a few people have had data issues, mostly concerning the 3g/4g handoff, but I wouldn't say its MAJOR like you make it sound on VZW. I personally like TouchWiz Jellybean.
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LordLugard said:
I thought the best TWiz ROM was Team Sonic FreeGS3 and ran that for the longest until i stumbled upon Blackbean ROM, which is a Jelly Bean ROM, and haven't gone back to TWiz ever since.
Click to expand...
Click to collapse
All the JB ROM's I've tried have caused a noticeable hit on battery life for me. I need my phone to last 10 hours reliably, and after every JB ROM I've tried, I was down below 20% after 10 hours, and that's not acceptable. What's your battery life on Blackbean like?
With FreeGS, I am usually around 60-70% after 10 hours, depending on usage.
Can anyone give me input on data quality on Blackbean and FreeS3 ROMs? I know its an odd question but my ROM's data isn't what it should be. I'm just wondering if this the case with most JB ROMs.
[S3 JellyBombed ROM via XDA premium]
That's probably a modem issue iamdestruktor
if you root your girlfriend's phone, be prepared to play constant IT guy when the slightest thing doesn't work perfectly. you will wind up managing two phones and it is not very fun when things go wrong...
alaman68 said:
if you root your girlfriend's phone, be prepared to play constant IT guy when the slightest thing doesn't work perfectly. you will wind up managing two phones and it is not very fun when things go wrong...
Click to expand...
Click to collapse
I'll agree. I rooted a couple of Nook Colors at work and when the slightest thing went wrong I'd have to take it home and flash it or update it or something. I guess rooting is best kept to one's self.
[S3 JellyBombed ROM via XDA premium]
alaman68 said:
if you root your girlfriend's phone, be prepared to play constant IT guy when the slightest thing doesn't work perfectly. you will wind up managing two phones and it is not very fun when things go wrong...
Click to expand...
Click to collapse
Haha it is technically my ex-gf.
I am only doing her S3 because I did this for her Evo 4g and she didn't complain once.
So I've been looking unsuccessfully for a JB Rom that doesn't bork my 4g speeds. On stock kernels I get 8-9 mbs down consistently, then flashing to CM10, PA, CNA, etc I'll get 600kpbs down consistently on 4g. I can then flash right back and get 8-9mbs down consistently, so it isn't a service issue.
I really am not a fan of the stock TW rom, and really like the customization that some of these awesome ROMs offer, but at the same time I don't want to be stuck on essentially 3g speeds when I paid for 4. Does anyone know of a good JB rom or kernel that keeps the 4g speed of stock? TIA
Edit to add: Or is there something else going on that's causing 4g speeds to suck? I'm under the impression that it's something with a custom kernel. On stock kernel I get high speed, and also if I flash AGAT's stock repack I get high speeds as well, but I've yet to find another kernel that keeps those speeds. Thanks.
From what I have read, until we get a stock JB kernal for our phone, we are going to have some issues, and 4g is probably one of them. Just be thankful you have 4g, a lot of us dont
Oh don't get me wrong I am thankful, just ignorant as to why a kernel would do that and if there was a fix
Sent from my Galaxy S II Epic 4G Touch using Tapatalk 2
Can't we just flash one of AGAT's ics kernels to fix the issue
ebuks97 said:
Can't we just flash one of AGAT's ics kernels to fix the issue
Click to expand...
Click to collapse
Lol. Sorry but its ics . Not only that its for twiz roms only.
sent from MY BAD A$$ ET4G
patrao_n said:
Lol. Sorry but its ics . Not only that its for twiz roms only.
sent from MY BAD A$$ ET4G
Click to expand...
Click to collapse
And there's no undervolting on the repacks either.
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byrdcfmma said:
From what I have read, until we get a stock JB kernal for our phone, we are going to have some issues, and 4g is probably one of them. Just be thankful you have 4g, a lot of us dont
Click to expand...
Click to collapse
This pretty much hit it.
The JB Kernel for the E4GT has just barely been released and our developers are still working on getting the kinks out. They've done a phenomenal job so far, I might add. One thing you can try is looking for a ROM / Kernel / Modem combination that will most appease your desire for 4G speeds. I have personally had a lot of success with Paranoid Androids ROM and stock kernel running FI25 (Modem).
When it really comes down to it, we just all have to be patient and thankful for our devs!
Good luck
crkdslider said:
This pretty much hit it.
The JB Kernel for the E4GT has just barely been released and our developers are still working on getting the kinks out. They've done a phenomenal job so far, I might add. One thing you can try is looking for a ROM / Kernel / Modem combination that will most appease your desire for 4G speeds. I have personally had a lot of success with Paranoid Androids ROM and stock kernel running FI25 (Modem).
When it really comes down to it, we just all have to be patient and thankful for our devs!
Good luck
Click to expand...
Click to collapse
Yeah I'm not meaning to seem ungrateful. Just asking the question.
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So today's I was in some building and I was on CM10 but had no signal at all. Check with another S4 running TW and it had a couple of bars. As well as an S3. I went to another aosp rom and still the same thing. Is there anything i need to tweak to get better signal or is that the way AOSP roms are?
Afaik it's just the way aosp reports your reception. It actually should be exactly the same in dbm's as any TW rom.
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I've read various threads where people discuss that the use of an AOSP-based ROM resulted in poorer radio performance, and some saying that this persisted even *after* flashing back to stock or other sense-based ROM. The latter is what is keeping me from trying out any of the AOSP-based ROMs available. I don't want to irreversibly worsen reception, because I really, REALLY hated dealing with that issue on my Galaxy Nexus.
Any thoughts?
godhamba said:
I've read various threads where people discuss that the use of an AOSP-based ROM resulted in poorer radio performance, and some saying that this persisted even *after* flashing back to stock or other sense-based ROM. The latter is what is keeping me from trying out any of the AOSP-based ROMs available. I don't want to irreversibly worsen reception, because I really, REALLY hated dealing with that issue on my Galaxy Nexus.
Any thoughts?
Click to expand...
Click to collapse
I ran PACman for a while before switching to Bonestock...I never noticed any difference in reception. I ran a few speed tests before, during and after PACman and they were are fairly similar.
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Isn't the radio flashed separately from the ROM? I flashed tons of roms with my s3 and never really noticed a difference in reception.
Go under about phones and look at the signal strength in there and bet sense or aosp it will be the same. Never go by the bars as you can make them read whatever you want them to.
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There have been several folks who, after flashing an AOSP ROM, can't get cell service (only data) when reverting back to stock. It's not just s question of bar deception.
Dark Jedi said:
Go under about phones and look at the signal strength in there and bet sense or aosp it will be the same. Never go by the bars as you can make them read whatever you want them to.
Sent from my HTC6500LVW using Tapatalk
Click to expand...
Click to collapse
I've experienced reception issues and lag w/ AOSP roms. The phone is just designed for Sense imho...
godhamba said:
I've read various threads where people discuss that the use of an AOSP-based ROM resulted in poorer radio performance, and some saying that this persisted even *after* flashing back to stock or other sense-based ROM. The latter is what is keeping me from trying out any of the AOSP-based ROMs available. I don't want to irreversibly worsen reception, because I really, REALLY hated dealing with that issue on my Galaxy Nexus.
Any thoughts?
Click to expand...
Click to collapse
I've noticed signal strength dings on some aosp roms but not all oddly enough. I do seem to get the best signal on sense based roms though (GPE roms and the like).
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You need to remember that AOSP roms are hacked together for phones that were never meant to run it. I'm not trying to discourage anyone from flashing those roms since that's up to reach person, but no AOSP rom will ever run as good as a Sense rom. It's just the nature of things.
CNexus said:
You need to remember that AOSP roms are hacked together for phones that were never meant to run it. I'm not trying to discourage anyone from flashing those roms since that's up to reach person, but no AOSP rom will ever run as good as a Sense rom. It's just the nature of things.
Click to expand...
Click to collapse
I've yet to see any sense rom run better than a nightly, let alone a stable build (from a pure performance standpoint)
As far as the OP- Signals will be within 0-5db depending on the rom, and that's only because we're on a CDMA device with a closed source RIL.
CNexus said:
You need to remember that AOSP roms are hacked together for phones that were never meant to run it. I'm not trying to discourage anyone from flashing those roms since that's up to reach person, but no AOSP rom will ever run as good as a Sense rom. It's just the nature of things.
Click to expand...
Click to collapse
I love aosp roms, but I tend to agree with you.
With my s3, I noticed a difference with my signal in certain places using aosp vs stock rom. But with the One, I haven't noticed a signal difference.
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I don't just mean signal. I mean in general. You will never find an AOSP rom for a non-nexus device that has everything working on par with the stock rom.
There are always things that are slightly buggy, or require some sort of hacky workaround or whatnot.
CNexus said:
I don't just mean signal. I mean in general. You will never find an AOSP rom for a non-nexus device that has everything working on par with the stock rom.
There are always things that are slightly buggy, or require some sort of hacky workaround or whatnot.
Click to expand...
Click to collapse
Sorry you are wrong neo has aosp roms on the rezound that runs better than sense and data is spot on.
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Some will say yes, but they are using the subjective "bars" and not the actual dBm to check ratings. I haven't noticed any change in signal when I used it in the past on CM and whatnot.
I've had terrible signal strength lately (using dBm numbers) and wondered if something was wrong with my phone until I read this. Are there any other threads discussing the issue and possible solutions? If I can't fix this I'm going to have to get back to a locked bootloader and S-on and swap the phone out. -110 signal as a norm just isn't cutting it.
I don't see the bog deal with the higher numbers. Here are my numbers on sense. They are no difference thsn what you are getting on aosp. One is in a better coverage are where the other is on the front. I notice no difference in performance of the data.
The higher number one had it jump to 116 but does not interfere with tethering. You can try to swap out your phone but doubt they will do it and most likely you live right on the edge of the 4g coverage. My pictures shows sense and those are the same numbers I got while on aosp.
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cstrife999 said:
Some will say yes, but they are using the subjective "bars" and not the actual dBm to check ratings. I haven't noticed any change in signal when I used it in the past on CM and whatnot.
Click to expand...
Click to collapse
With my Nexus, I sat in a parking lot and went from one Rom to another, I noticed a difference in the numbers and surfing the web.
A kernel developer back then did say flashing various roms could impact signal strength.
I'll bet this topic has been discussed more times than we can count, but it's always nice to get a new perspective. Wouldn't you agree?
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dspcap said:
With my Nexus, I sat in a parking lot and went from one Rom to another, I noticed a difference in the numbers and surfing the web.
A kernel developer back then did say flashing various roms could impact signal strength.
I'll bet this topic has been discussed more times than we can count, but it's always nice to get a new perspective. Wouldn't you agree?
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Click to expand...
Click to collapse
DBm will change in one location regardless probably by 20 or so. My fnex usually is around 75-100. Not that great I know
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cstrife999 said:
DBm will change in one location regardless probably by 20 or so. My fnex usually is around 75-100. Not that great I know
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Click to expand...
Click to collapse
Agreed, but I also surfed the web for a while, it was noticeable difference.
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dspcap said:
Agreed, but I also surfed the web for a while, it was noticeable difference.
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Click to expand...
Click to collapse
Yea I know I'm agreeing with you lol.
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cstrife999 said:
DBm will change in one location regardless probably by 20 or so. My fnex usually is around 75-100. Not that great I know
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Click to expand...
Click to collapse
You consider 70 not so good?
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