Horrible Signal - EVO 4G Q&A, Help & Troubleshooting

After I rooted the phone I have been getting really bad signal everywhere I go. The Speedtest.net app says my download is about 500kbps down and 79kbps, I have tried multiple servers. This is significantly slower than I was previously getting and is very apparent in use. In settings I have seen signal strength between -120dBm and -80dBm. I have the latest radio, pri, prl, and have tried multiple roms with the same result. I am presently running the evervolv alpha 15. Any help is greatly appreciated.

You should go to a stable rom instead of a alpha rom
Sent from my gingerbread evo 4g

cesarcerros31 said:
You should go to a stable rom instead of a alpha rom
Sent from my gingerbread evo 4g
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I have, it is just as bad on fresh and cyanogen as it is on the alpha gingerbread roms.
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Someone helped me with a 3g hack Imy speeds where .26-.60 mbps now I get 1.0-1.66 with verizon prl pm me if you want me to help you do the hack.
fandroid213 said:
I have, it is just as bad on fresh and cyanogen as it is on the alpha gingerbread roms.
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Related

3g data speed today?

Is anyone having a slow data connection today or is it just my phone. I'm running speed test and I'm only getting an average of .50mbs up.
Currently I'm on cm6 rc1 with the snap v3 kernel. Flashed the latest radio but haven't flashed the wimax since I don't get 4g here.
Any idea??
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I meant .50mbs down. Sorry.
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A 4g capable non sense rom -- please advise!

I have been using and loving my cm6 build, but now that 4g has been turned on in Columbus Ohio I am really wanting some 4g action until cm6 comes out with 4g. I would flash back to stock but I can't stand sense ui. I looked at the Roms wiki and was overwhelmed with the number of newcomers to the rom game. So is there another nonsense rom that is 4g capable and otherwise worthwhile? Thanks in advance.
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nate5532 said:
I have been using and loving my cm6 build, but now that 4g has been turned on in Columbus Ohio I am really wanting some 4g action until cm6 comes out with 4g. I would flash back to stock but I can't stand sense ui. I looked at the Roms wiki and was overwhelmed with the number of newcomers to the rom game. So is there another nonsense rom that is 4g capable and otherwise worthwhile? Thanks in advance.
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As of now, there is no AOSP ROM with the ability to utilize Wimax.
Try flashing barnacles ROM, you pretty much won't even be able to tell you're running Sense. http://forum.xda-developers.com/showthread.php?t=824637
I've tried Fresh...
http://forum.xda-developers.com/showthread.php?t=743079
Damage Control...
http://forum.xda-developers.com/showthread.php?t=745659
and EvoNonSense...
http://forum.xda-developers.com/showthread.php?t=758197
Evo-NonSense is my keeper 9though it was just updated yesterday & I haven't flashed it yet.
BR
I've been back and forth between Myns and Virus airborne series, currently on Myns and loving it.
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neckface said:
As of now, there is no AOSP ROM with the ability to utilize Wimax.
Try flashing barnacles ROM, you pretty much won't even be able to tell you're running Sense. http://forum.xda-developers.com/showthread.php?t=824637
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+1 Yeah I really like Barnacles rom Frost. Its my rom I'm using now I really like CM the best but I'm in the same boat no 4G. I use my sling box on my phone which needs 4G. Please get 4g working on CM.

ROM/radio question

I've been bouncing back and forth between optimized shift and the hybrid sense 3.0 roms and since the hybrid has gotten more stable I've been sticking with that.
I feel like I remember reading somewhere to use the gb leak radio 05.06 with the 3.0 roms? but I was getting horrible service with that so I switched to the 4.08 radio and things haven't gotten much better. Does the ROM have any affect on my signal or should I just keep flashing radios until I find what works best for me? Thanks in advance for your help!
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Alright thanks I wasn't sure. Appreciate it.
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radios helped a lot for me,the hybrid prl is useless in my neighborhood but I noticed different averages between signal measurements.some gave me around -100dBm,others around -91 and -92. for me I'm outside northeast philadelphia and 9.01 seems to be the best with an average of -87. not the best quality compared to others but it's the one that gives me the best signal
Maybe ill try the 9.01 since I'm in northern Delaware that isn't too far away. The hybrid prl is for alltell towers or something right?
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Ok. So I just flashed the 9.01 radio and updated the prl and it went from 52997 to 52341 is that moving backwards or is that just how it goes? Sorry for the noob questions but my prl never changed when updating before.
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it's a negative value so the closer to 0 the better,-89 is better than -102 for example
I know the dbm is a negative value. I just didn't know if the prl being a lower number made it older or outdated.
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older yes,outdated....highly unlikely if you're service is fine
Alright cool. Thanks for your help bud.
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Q: using cm7 any suggestions for a better rom

So ive been reading up on this for awhile and i cant find a solid answer or opinion but i want basically a fast rom and better battery life than what im getting off my cm7 rom my sav-zen kernal uv 50mv any suggestions oh and more bars wouldnt be to much to ask for right lol
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wileout said:
So ive been reading up on this for awhile and i cant find a solid answer or opinion but i want basically a fast rom and better battery life than what im getting off my cm7 rom my sav-zen kernal uv 50mv any suggestions oh and more bars wouldnt be to much to ask for right lol
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How do you have yours set up? I have CM7 with Savaged Zen and it runs faster than any other ROM/kernel combo I've tried.
Im not running setcpu so its not overclocked or underclocked
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Im not saying its slow im more looking for better signal and a sense like feel from an aosp
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wileout said:
Im not saying its slow im more looking for better signal and a sense like feel from an aosp
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Good luck with that kind of find...
If you're looking for a sense-like feel, why not just go with a sense ROM? I personally use Synergy ROM and everything works super fast, no issues, and service seems to be better than when I had CM7 on it. That and sense ROMs also make full use of the phone's hardware, such as the camera...
The support and extras are a pretty sweet deal, as well.
-EDIT-
Link! http://forum.xda-developers.com/showthread.php?t=1144447
Sent from my Synergized OG EVO using XDA App
Signal strength is not universal. You can have the same signal strength on your phone but it will display as a different number of bars based purely on your ROM. CM seems to be one of those ROMs where I have a really good signal yet I'm only showing about 2 or 3 bars. Its just the way the ROM displays it. Flashing another ROM and getting more bars doesnt mean your signal strength is any stronger or weaker at all.
Also, if you're looking for a sense feel then just get a sense ROM. There are a lot out there to choose from. I'm actually thinking of running Boot Manager on my phone and flashing a sense ROM alongside CM7 so that I can make use of the abilities of the sense ROMs when I need to.
I switch between Fresh 4.22 and CM7 pretty regularly and love battery life/performance of both. I use Tiamats 4.1 SBC on CM7 and the stock kernel on Fresh, although it would be choice if there were a Sense SBC kernel.
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Any chance u got the link for that frsh 4.22?
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I keep coming back to Mik's roms. On MikG now and love it. Battery life is great too but then I use all the app tricks I can find. App2SD / DroidWall / SetCPU / StartUp Auditor. If your signal strength is bad just call Sprint and ask for an Airvanna. Once it's hooked up you should be up to 4/5 bars constantly. That's been my experience.
Have you tried team nocturnals merge Rom its sense based with an soap feel its pretty nice if you are trying to have your cake and eat it too
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evo hacks
check out evohacks.com they will give u ideas.
Do u have the link for the merge rom or can u point me in the direction of where to find it?
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wileout said:
Do u have the link for the merge rom or can u point me in the direction of where to find it?
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http://tinyurl.com/3b6btf4
Fresh Rom 4.22
http://forum.xda-developers.com/showthread.php?t=1046622

Custom ROM 4g vs. Stock ROM 4g. What's the deal?

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?
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There's no kernel compatible for CM10 no source yet.
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ideseth said:
I get 8.8 MB/s with BluKuban
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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
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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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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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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.
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ideseth said:
I get 8.8 MB/s with BluKuban
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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.

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