Hi guys,
Please help me out here:
After I rooted and unlocked NAND on my EVO by following the guides on this forum (part 1 and part 2), my 4g connectivity is totally unreliable.
The connection switches between 4g and 3g a couple of times a minute. Sometimes the EVO will have a full 4g signal and an ip address (according to the settings app), but when I open the browser it says that there is no network connection. Switching the phone to 3g fixes the connectivity issue.
I live on the 14th floor of a high-rise and had full 4g signal before rooting. I have tried the stock ROM as well as the Bugless Beast ROM and I get the same results.
Does rooting and unlocking NAND somehow mess with the 4g radio in the EVO, anyone have this issue in the past? Please help, I don't want to take this thing back to Sprint and go for the iPhone
Have you updated the radio? Go to settings and see if you baseband is 1.39.00.05.31
4G Radio
What is your current baseband at?
you should be at 1.39.00.05.31 or higher. If you look for the Fresh .2 Rom, they have the Radio zip. reboot into recovery and flash with the new Zip it will update your Baseband radio will be updated.
I had issues with 4G connectivity I updated my radio and I am all set.
-Joshonekenobi
Yes, I just updated to the latest baseband and it's still doing the same thing.
The phone shows full signal on 4g and all of the sudden switches to 3g and back to 4g again. This occurs several times a minute.
Is there some way I can flash it back to completely stock ROM?
Thanks,
Rayden1000
i'm rooted via unrevoked and my 4g is spotty. rooted or not. for me I think its 4g not set up yet. It is a work in progress. I'm in St. Louis. Speeds suck as well.
Avg. 1.2 download 4g
Avg. 0.5 download 3g
I am in Baltimore, the first 4G market. I really don't think it has to do with coverage....before rooting (and even after rooting, when on 4G), I get about 3.6 down and 1 up (upload is capped at 1 by Sprint).
I also live in a high rise that's half a mile from Clearwire's 4G tower........my issue is that after rooting, the EVO is not locking to 4g, it keeps switching back and forth between 3g and 4g.
Rayden1000
rayden1000 said:
Yes, I just updated to the latest baseband and it's still doing the same thing.
The phone shows full signal on 4g and all of the sudden switches to 3g and back to 4g again. This occurs several times a minute.
Is there some way I can flash it back to completely stock ROM?
Thanks,
Rayden1000
Click to expand...
Click to collapse
Same issue here... Try this: go to settings and disable mobile networks (i.e. turn 3G off). When I do this, speed test works fine, but as soon as I try to do something real it disconnects and says there is no connection, even if it had a strong signal... not terribly useful!
L_Mo said:
Same issue here... Try this: go to settings and disable mobile networks (i.e. turn 3G off). When I do this, speed test works fine, but as soon as I try to do something real it disconnects and says there is no connection, even if it had a strong signal... not terribly useful!
Click to expand...
Click to collapse
L_Mo,
Were you having this issue before rooting (I am just assuming that you did root)? I swear that I did not have this issue before doing the full root and Nand unlock. When I just had Unrevoked root, I was using my Evo as my internet connection for my laptops for a full week with no issues and as a result I disconnected my Comcast cable internet.
I am just at a loss here, if I can't get this fixed, I will have to either flash the phone back to stock or take it back to Sprint for an exchange.
Rayden1000
I had the same problem after rooting. I am having better luck with Flipz stock rooted rom. I am using Flipz ota 1.32.651.6 rooted rom with the 1.39.00.05.31 radio. I wiped cache and delvic before flashing.
If this doesn't work for you you can get the stock RUU and reflash to unrooted stock.
jgarozzo said:
i'm rooted via unrevoked and my 4g is spotty. rooted or not. for me I think its 4g not set up yet. It is a work in progress. I'm in St. Louis. Speeds suck as well.
Avg. 1.2 download 4g
Avg. 0.5 download 3g
Click to expand...
Click to collapse
Unrevoked is a ***** root and couldn't possibly mess with your 4G, sorry to say!
And, to the rest of you, rooting would not mess with your signal at all unless you dropped your phone or some ****. Installing the newest radio would be my only recommendation. Or you can unroot it and try to exchange it for a different EVO.
erikjonpeterson said:
I had the same problem after rooting. I am having better luck with Flipz stock rooted rom. I am using Flipz ota 1.32.651.6 rooted rom with the 1.39.00.05.31 radio. I wiped cache and delvic before flashing.
If this doesn't work for you you can get the stock RUU and reflash to unrooted stock.
Click to expand...
Click to collapse
Thanks erikjonpeterson,
I am going to to download that ROM now.... I knew I wasn't crazy when I said that 4G worked fine before rooting. I am finding more and more info online about many people having the same issue
Rayden1000
rayden1000 said:
Thanks erikjonpeterson,
I am going to to download that ROM now.... I knew I wasn't crazy when I said that 4G worked fine before rooting. I am finding more and more info online about many people having the same issue
Rayden1000
Click to expand...
Click to collapse
I had the same issue. Reflashed the RUU and still had connection problems (good 4g signal, but use the internet and it drops and switches to 3g). Didn't have problems with my 4g data card though.
edit: I actually thought I messed something up myself before I even rooted. I was in a bad area and kept roaming even though I could get a weak Sprint signal so I switched it to Sprint only and I think I mightve messed with some other settings under that mobile network tab. What are the default settings?
So basically, something in the full rooting process (not the unrevoked one), f's up the baseband or access to the baseband? I am not an electronic engineer, but it's obvious that doing the full root messes up 4G.
Any senior members in the know have a fix for this? I already exchanged my Evo once because of several stuck pixels, it would look suspicious if I went back to the store again...
Rayden1000
rquinn19 said:
I had the same issue. Reflashed the RUU and still had connection problems (good 4g signal, but use the internet and it drops and switches to 3g). Didn't have problems with my 4g data card though.
edit: I actually thought I messed something up myself before I even rooted. I was in a bad area and kept roaming even though I could get a weak Sprint signal so I switched it to Sprint only and I think I mightve messed with some other settings under that mobile network tab. What are the default settings?
Click to expand...
Click to collapse
Default settings under Mobile Networks: Every option is checked.
Rayden1000
rayden1000 said:
So basically, something in the full rooting process (not the unrevoked one), f's up the baseband or access to the baseband? I am not an electronic engineer, but it's obvious that doing the full root messes up 4G.
Any senior members in the know have a fix for this? I already exchanged my Evo once because of several stuck pixels, it would look suspicious if I went back to the store again...
Rayden1000
Click to expand...
Click to collapse
Don't take what I said as a definite Evo or root problem. I'm curious as to if it's a 4g here in Philly problem. When I first bought the 4g card it was great, but wasn't using it so I returned it. Bought it again 4 months later and I returned that one because the 4g was terrible. I'm thinking 4g where I'm at sucks and is getting worse with more and more people jumping on it. I was a 3g early adopter so I'm not worried yet.
edit: I'm gonna go down to an area that's known to have a good 4g signal after work and sit around and do some "testing".
Which market are you in? Sprint has been doing a ton of testing in markets that aren't officially live yet.
I don't think it has anything to do with the ROM.
If when you are connected to 4G you can access the internet, only suddenly 4G it drops for no reason and switch to 3G and then reconnects to 4G and goes on and on, below is the solution. if when you are connected to 4G you can not access the internet at all, the below wont fix it for you and it is probably a problem with your rom.
You will need your msl code to fix this, loop up in the forums to to obtain your msl code from Sprint:
hit ##DATA# > Edit mode.
Put in your msl code
Chose WIMAX
Scroll down to Wimax_Idle_Sleep
Change the value from 10 to 300.
Click menu, commit changes and restart the phone.
This fixed it for me and i never drop 4g (when in good coverage) again.
Basically Sprint has some STUPID setting that tells 4g to go into "sleep mode" of no data is passed on the 4g connection after 10 seconds which is essentially disconnecting 4g.
The problem is it goes into sleep mode (disconnecting), but then rescans and look for a 4G signal > reconnects to 4g and if no data will be passed in 10sec it will do the same again in an endless loop.
10sec to put a connection into sleep mode is really low so change it to 300sec.
The odd thing is that this is only happening in certain locations and with certain towers.
I tried to call Sprint and explain about this issue but my attempts fell on death ears.
Go ahead and try the above. if it helps you please someone make this a sticky as you are not the first i see having the issue.
Valicore said:
Which market are you in? Sprint has been doing a ton of testing in markets that aren't officially live yet.
Click to expand...
Click to collapse
I am in baltimore, the first 4G market.
I have to tend to agree that something in "Part 2" is messing up something with 4G. I've done Part 1 and successfully "upped" the radio with no 4G loss. Living in $G Vegas, I would get solid 2 bars inside my office. Once I did Part 2 and redid the phone, I would get "jumping" from 3G to 4G...
I still have to wonder, when flashing the new radio, why (after Part 2) it gets "stuck" in formatting cache and you get no "confirmation" of an upgrade. I am an AnooBroid...but this just doesn't seem right to me.
(Edited) - This post is now obsolete... Teaches me to refresh the page on the Evo before posting!
I am on Cyanogen's rom with the newest radio. I also have my prl onto the 41003 alltell PRL(I have tried many), but while tethering through wireless tether pre9, my 3g constantly drops. The icon dissapears then comes back, and through ping I can see packets stopping.
Anyone else have this prob? I am going to see if this happens on a Sprint PRL... but it's pretty anoyying. I am pretty sure I used to be able to do this, maybe on an older radio, I've downloaded large Ubuntu 300 meg updates fine... can't do that now.
I just put the oldest pri and nv, and no more drops, still newest radio.
o
m
g
I
150ms ping time compared to the old 300 and I am on Alltell's/Verizon's towers 41003 prl.
1.5 mb/s on speedtest.net
You could just use the built-in Wi-Fi Hotspot ... works perfectly.
wmdunn said:
You could just use the built-in Wi-Fi Hotspot ... works perfectly.
Click to expand...
Click to collapse
Nah same prob..., and just to clarify, when I flashed the PRI and the nvram, it changed my prl to a sprint one... that's why the good speeds and low pings. Except in certain parts of this building no signal. So I flashed the oldest radio 1.34...? and the 41003 prl and it works great.
I rooted my phone about a month ago and went to MikFroyo 4.4 ROM very soon after. I did alot of research and found that MikFroyo was supposed to have working 4G, but for me it isnt working. I have working RSA keys and I live in a 4G area. Can anyone help me??? I live in a suburb outside of Chicago.
Did your 4G ever work? Is it connecting then dropping? Are you running the latest radio and PRI?
Yes it did work before I rooted. I believe I am using the correct radio, but can you tell me how i can check that? When I turn on 4G it starts scanning and just keeps scanning. Everything else on the phone works awesome. I just really want 4G.
This doesn't help but just so you know I tested the 4G and it does work. It scans and disconnects or connects pretty quick.
I have my Evo in one hand and a buddys evo in the other. Both have wifi off, I launch speedtest app on both, on mine I get 900+ download speed, on his 126 is his max. I updated all the radios. He is running myns warm rls 5 with htc#15 kernel. I am running cm7.
Could he have a hardware problem? I have tried everything I know to try.
**EDIT**
Downloaded signal strength widget and he is only getting 1x not ev(3g)
going to update with the msl # and try that.....
**EDIT**
Set it to auto and still not going into 3g, staying at 1x.
So how do I get the phone to go into 3g?
**EDIT**
Now in 3g
did this again, I didnt commit the changes. He is not getting 1000+ up and 987 down.
How to fix
I bought a used evo 4g.
I did the HTC unlock and flashed amon RA recovery
I flashed cm7
With cm7 I could not get 3g service
I recovered to the stock rom and even though it showed 3g, network info 2 showed 1xrtt
I flashed energy rom
http://forum.xda-developers.com/showthread.php?t=1290300
I installed the epst.apk so I could install different prls
I changed the prl to 60681, the same one that is on my HTC Hero that gets 3g coverage
Side by side the hero and evo get similar db readings but the hero will lock into 3g while the evo will only lock into 1xrtt
When the evo does show 3g, it only lasts a couple of seconds before dropping back down to 1xrtt
PRI Version
2.33_003
PRL
60681
Baseband
2.15.00.12.19
HBOOT 2.18.0001
Radio 2.15.00.12.19
I live in a pretty rural Texas area. Even though Sprint and Verizon show 3g here I don't get very good speeds with Sprint. When I flash a verizon prl, I'm still only getting 1xRTT
Any suggestions on what to do? I'm downloading a rooted stock rom and working on getting s-off to try different radios. Any suggestions on radio?
I had it lock onto 3g, network info 2 said 3g rev. A and I couldn't get it to load a single web page even though it showed data moving. the page finally loaded when it went back to 1x
I corrupted a password. Doh. Problem fixed.
Not sure what's happened but even my hero is getting faster data now
I had the same problem when I went to CM 7.2, I followed the steps on this page in the forums and now have 3g when I flashed back to CM for a stock ROM. Only downside now is it seems to not connect to my OG Airave (non3g) unless I try to make a call, stays on 3g with 1 bar all the rest of the time.http://forum.cyanogenmod.com/topic/19389-3g-to-1x/