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!
Hi, I was hoping someone here may be able to help me out with this problem. Last week I had a weird issue where my GPS signal stopped working, text messages and phone calls weren't coming into the phone. I've since been able to correct that issue with flashing to a clean Sense based ROM, and updating the profile and PRL, but now I can't seem to pickup 3G EVDO signal, only 2G 1xRTT..
My phone is(was) rooted and flashed with Calkulin's EViO 2 v1.77, most current radios. I thought maybe something got messed up, and since 1.8 was out, I flashed to that. Same issue, updated the radio from his package, same thing. Then I thought, ok, maybe something with this rom is messed up(unlikely, but I was grasping at straws at this point), so I flashed to a different rom, think it was sprint lovers.. same thing. Flashed to CM7, same. Unrooted and flashed back to stock, took it into Sprint, which they did a hard reset and told me since it shows the 3G icon in the top bar, it is on 3G and working fine. This is ofcourse bull**** since the Evo shows that 3G icon even if its on 1xRTT signal..Sprint tossing out wrong info, shocking I know. I've used Antennas and OpenSignal apps to show that it is indeed connecting to the 1xRTT signal. Downloading anything on the phone is ofcourse slow too, I've had google maps updating now for about 15 minutes, and it is 5.86MB.
Would anybody have some suggestions of what I can try to get the 3G radio working again?
Anybody have a suggestion of what I could try here? I've changed my PRL to the Verizon one, which gives the same results. Still having the same problem.
ya its calkulin's 1.8. the new extended mobile data menu hack has a messed up default that sets it to evdo only by default, messing up everything else. switching roms doenst help. go back to calk's 1.8 and type in the dialer ##3282# select view only and make sure mode of operation is on automatic.
Hi, I've been following xda for a while but just recently registered. I searched the forums but didn't find any good answers/fixes.
In either case:
I've lost connectivity on my HTC EVO 4G. It's odd because the 3G signal indicator shows strong and the up/down arrows light up/dim. I'm running the latest CM7 supported nightly build and the Tiamat Kernel.
I was running a PRL for Verizon only roaming but heard rumors that 4G was in Phoenix. I did a backup of my ROM and restored a default android one then did the PRL update through the phone to get the most recent PRL from Sprint. Now in my CM7 rom and regular android ROM I can't connect to any data.
I tried re-wiping caches and restoring a second time to no avail.
Maybe I broke something in the ROM and just need to do a factory reset? Not a problem if that's necessary I have backups of all my stuff.
Any help for regaining service would be great! Thank you in advanced.
Well never mind I guess... just my luck as a Sysadmin once I ask about why it's broken it's fixed.
All data is back on my phone even after multiple reboots. Maybe PRL update didn't register on Sprints end? Don't know...
Thanks anyways everyone!
Happing to me too, it's a tower problem in my area. Nothing to do with your phone just Sprint's crappy network.
Hello xda. I need some help with my GS3 and LTE. I rooted my phone on day one and have moved from rom to rom. I live in the SF Ba. Area and they are turning LTE on. Using sensorly I found some LTE areas, but my phone won't connect. I have tried different roms: CM10, Paranoidandroid, Ktoonsez, and now Liquid. I started with radio LJ9 and am now on LJ7.
I hope someone can give me a few ideas on what to try next. I heard updating the PRL can help, but I don't know how to do that.
Sorry if I did a poor job of searching, I am on my tablet, on 3G, and I couldn't find much
To update your profile and prl (prl is for roaming and doesn't effect lte).
menu -> settings (scroll to the bottom) -> system updates -> update profile / update prl
I'd odin stock JB or ICS and test LTE that way.
Though all of the ROMs you listed should have perfectly working LTE.
good luck
I flashed back to a Odex stock, and updated my profile and prl (just incase). I still don't seem to get any LTE.
FinalStar said:
I flashed back to a Odex stock, and updated my profile and prl (just incase). I still don't seem to get any LTE.
Click to expand...
Click to collapse
Don't feel bad im goin thru the same thang had the phone four days rooted it the second day i had it NO LTE to date wtf sprints trippin
samsung GSIII rooted
I know! Don't you love paying 4G price for 3G service? Fo real!
Well I'm not 100 % on what fixed it but it suddenly started working. Speed seems a little slow. 5mbps up and down. Don't people get in the range of 10 to 20
FinalStar said:
Hello xda. I need some help with my GS3 and LTE. I rooted my phone on day one and have moved from rom to rom. I live in the SF Ba. Area and they are turning LTE on. Using sensorly I found some LTE areas, but my phone won't connect. I have tried different roms: CM10, Paranoidandroid, Ktoonsez, and now Liquid. I started with radio LJ9 and am now on LJ7.
I hope someone can give me a few ideas on what to try next. I heard updating the PRL can help, but I don't know how to do that.
Sorry if I did a poor job of searching, I am on my tablet, on 3G, and I couldn't find much
Click to expand...
Click to collapse
On CM10 (and all AOKP ROMs based on it) eHRPD authentication is not working right yet. I think they're close to a fix, but for right now, if you're in an area with a weak LTE signal; you're gonna have some problems
hey gang i'm running the latest aokp task650 build on my S3 I747m. Everything works awesome, except i occasionally lose my data connection. I'll notice my connection status bars are gray, and typically a reboot will fix it. I'm sure going into airplane mode and back out from that would re-establish the connection too.
my APN is set correctly, i compared it to a friends nexus which is not rooted.
Right now i'm set as pda.bell.ca
I've flashed the latest bell modem file (that i'm aware of).
Anyone have any suggestions? i'm pretty new to all of this.. not sure what to do to troubleshoot.
itrunner said:
hey gang i'm running the latest aokp task650 build on my S3 I747m. Everything works awesome, except i occasionally lose my data connection. I'll notice my connection status bars are gray, and typically a reboot will fix it. I'm sure going into airplane mode and back out from that would re-establish the connection too.
my APN is set correctly, i compared it to a friends nexus which is not rooted.
Right now i'm set as pda.bell.ca
I've flashed the latest bell modem file (that i'm aware of).
Anyone have any suggestions? i'm pretty new to all of this.. not sure what to do to troubleshoot.
Click to expand...
Click to collapse
I've been having problems lately when I have poor 4G (LTE) signal. My phone would rather hang around on the LTE network with little to no signal before it switches over to 3G. It's been doing this for a while on the Rogers network for me. I can see when I check the battery stats just how much time is spent without signal which is a lot. At work I get full bars 3G when at my desk but very poor 4G. The only thing causing me to loose signal is the poor transition back and forth between the two networks. Changing modems has absolutely no affect on this matter and I've put the APN's and network modes through the ringer with no change either. I've tried it all and nothing improved it. When I walk outside I immediately hit full bars 4G. Just when I'm inside my work and at home, I get poor lingering 4G. I wish the thresholds for when it switches over were better. I usually just turn off LTE all together which sucks but oh well.
I don't think we are the only people with this either. I've read grumblings about others noticing the same thing.
If curious, I'm running the latest CM10.1 nightly with Ktoonsez kernel on the Rogers network in Ottawa.
Interesting, that could very well cooincide with what i'm seeing. I tend to bounce from 4G to H+ or 3G, i wonder if it's trying to hang onto 4G.
Is there a way to force it to stay on 3G? that might be a good test
I was getting the same issue.
I did a factory reset and reinstalled my ROM plus GAPPs and the issue resolved itself.
I am using the latest modern right now and not my bell one. I think it's from a south American carrier, but bit 100% sure of the top of my head. But it is in the current modern thread
Sent from my SGH-I747 using xda app-developers app