Broken Wimax on Sprint - EVO 4G Q&A, Help & Troubleshooting

First off, yes, I have used search and have read any thread where people said they could not get 4G to connect. I have used google to search for a solution as well. I am posting this with that hope that someone may have an insight and if I can resolve my issues hopefully others will be able to as well.
The Problem: My EVO will not connect to 4G service. It turns on, goes to scanning, connecting to sprint, authenticating to sprint, obtaining IP address, disconnecting, scanning, connecting to sprint, …
The History: I have always kept nandroids of pretty much everything I do on my EVO. I have nandroid backups from the first time I rooted my phone still hanging around. I have used nothing but AMon-Ra 1.8 and later recoveries and made sure that the wimax partition was backed up. The week before last my EVO connected fine with 4G. Last week Myn updated to RLS5 and naturally I ran out and updated it. Unfortunately I don’t have 4G coverage (or 3G or 1x for that matter) where I live so I didn’t notice that my 4G stopped working until I got to Salt Lake City. I figured it must be something to do with the Wimax towers in the area so I wrote it off. I have had that happen in various places that didn’t have official Wimax roll-out yet. When I got to Seattle it was still doing the same thing, that is when I started to get concerned. So I sat in a parking lot where I knew there was great 4G coverage (my laptop has a wimax radio in it so I could see the good coverage from Sprint) and proceeded to roll back to a version that I know worked. No good, still no 4G connection. That is when I started digging through everything I could find.
The Troubleshooting process: First thing I thought was that maybe I had whacked my MAC address. So I ran to XDA forums, checked out the post on how to check if my MAC is still good. MAC address reported by fastboot oem wimaxrmac is the same as the one under my battery. Maybe I whacked my keys? Again, ran to XDA forums and found that I can run ‘cat /dev/mtd/mtd0 | grep RSA’ and see if my keys are there. Sure enough ----BEGIN RSA PRIVATE KEY---- and ----END RSA PRIVATE KEY---- is there. OK, it doesn’t seem to be the keys, but lets check to see if the keys that are there belong to me and my EVO. So again, back to XDA. This time I find a post that shows how to extract the RSA key and the device certificate and then run an MD5 sum to see if they belong together. It also shows how to look at the cert to make sure it belongs to your evo. Sure enough md5 checks out and the cert has my mac in it in the proper places. OK, lets check on the tree.xml file. Sure enough it has the right mac. OK, delete it like the instructions say. Now, I restart 4g, it creates a new xml file, but doesn’t connect. That’s ok, the guide says it likely wont. I update profile/prl, reboot, turn on 4g and no go again. Lets do the profile and prl again just for good measure, same result. Hmm, look there is another way to do the profile update. ##data#, data profile, menu->restore. The phone reboots and runs through all the provisioning steps. Still the same results. Once more, back to xda forums. This time I find a post about checking your wimax partitions with wimax_mtd. Well, wimax_mtd thinks its all good too.
By this time I am really confused and figure maybe I can unroot and apply the RUU to dump it back to default config. Now my phone is unrooted and STILL doesn’t have 4G access. After rooting the phone again and going back to another sense based rom I ran a tail on the sequansd.log file, again found by xda / google searches. Here is where I have no idea what is supposed to happen. Here is the tail of the log file. http://pastebin.com/f2jL4MVF and here is a catlog from another attempt. http://pastebin.com/sZ2BiM9g
Here is where it gets odd to me. I changed my realm to clearwire by using ##data#, wimax, realm, clearwire-wmx.net, reboot. Sure enough it connects and gets redirected to the clear.com site. I ran a tail of the sequansd.log file and get basically the exact same things as I got when I ran the tail while on the sprintpcs.com realm. http://pastebin.com/0EU7Qh86
This is where I am stuck right now. Thanks for reading this far and sorry for the novel. Hopefully I gave enough information that this can get resolved and maybe it will help others.

Call Sprint.

I have never had this problem last this long, but I have had problems connecting to 4g before. MikFroyo 4.2 and Myn rls4 both had connection issues but it was usually a simple reboot before it was fixed.
I honestly have no clue. If your Mac Addy is fine and your RSA keys are there, then this is seriously a conundrum.
I'd suggest dropping your phone off a 3 story building and getting a replacement. That's just me though.

I called Sprint and went through about 5 techs. They ended up saying they don't know what is going on and that they cant see any errors on the tower I am connecting to. They set up an appointment for me to go into a local store.

landaile said:
I called Sprint and went through about 5 techs. They ended up saying they don't know what is going on and that they cant see any errors on the tower I am connecting to. They set up an appointment for me to go into a local store.
Click to expand...
Click to collapse
Your welcome.
Sent from my PC36100 using XDA App

Related

What would you do?

I bought an Evo back 2 weeks ago and went through the whole 4g fiasco, but I was unable to fix it. The furthest I got was my 4g would try to obtain an ip address but never get it.
So I got a replacement Evo today and right out of the box (Software .6) the 4g was not working. It would scan-connecting-authorizing - - - Then nothing it would just go back to scan -connecting - auth --- scan and so on.
So I did the full root +nand unlock
Then did Whitlock method, then flashed DC newest ROM.
Wimax is still repeating the same things for me.
MY username/pass are good.
My DEV MAC is a little different though.
It matches both on the software and behind the battery. DEV MAC - 38:E78:**:**:**
I have done profile update numerous times, I have applied the permission fix, I have renamed the Tree file, I have factory reset my phone.
Nothing I do will allow me to connect successfully to 4g.
My wife has her 4g. I rooted/nand then did whitlock, then flashed over to the newest DC ROM and her phone connects to 4g just fine.
Any Idea's?
I called Sprint and they sent me to the highest tech and she said she doesn't know what to do for me, figures...
sounds like it might be an account problem on their end, unless you and your wife are on the same plan. unless you are, and then try her credentails.
nenn said:
sounds like it might be an account problem on their end, unless you and your wife are on the same plan. unless you are, and then try her credentails.
Click to expand...
Click to collapse
Yes me and my wife are on the same family plan.
And Sprint said everything looked fine on their end
when you get a chance, check the value of "Current username" in
Settings->About Phone->Phone Identity
on both phones. see if they match, if not, bother the hell out of sprint. unless youg et it fixed first
Wait the identity should or should not match?
Mine is different than my wifes.
Anybody got an answer to this question?
iceat said:
I bought an Evo back 2 weeks ago and went through the whole 4g fiasco, but I was unable to fix it. The furthest I got was my 4g would try to obtain an ip address but never get it.
So I got a replacement Evo today and right out of the box (Software .6) the 4g was not working. It would scan-connecting-authorizing - - - Then nothing it would just go back to scan -connecting - auth --- scan and so on.
So I did the full root +nand unlock
Then did Whitlock method, then flashed DC newest ROM.
Wimax is still repeating the same things for me.
MY username/pass are good.
My DEV MAC is a little different though.
It matches both on the software and behind the battery. DEV MAC - 38:E78:**:**:**
I have done profile update numerous times, I have applied the permission fix, I have renamed the Tree file, I have factory reset my phone.
Nothing I do will allow me to connect successfully to 4g.
My wife has her 4g. I rooted/nand then did whitlock, then flashed over to the newest DC ROM and her phone connects to 4g just fine.
Any Idea's?
I called Sprint and they sent me to the highest tech and she said she doesn't know what to do for me, figures...
Click to expand...
Click to collapse
To answer your question (the post title) -- "be pissed off."
Your situation is really strange and it sounds like you've tried a lot of the "fixes" here for 4G.
What area are you in?
Have you tried Settings->Update->Update Profile (and PRL) ?
RanEnRui said:
To answer your question (the post title) -- "be pissed off."
Your situation is really strange and it sounds like you've tried a lot of the "fixes" here for 4G.
What area are you in?
Have you tried Settings->Update->Update Profile (and PRL) ?
Click to expand...
Click to collapse
Yea man, I am in Dallas/Ft. Worth
My wifes phone has great 4g service just blocks form our house.
I got her phone, and root/nand unlocked it, then used whiteslack method, then flashed DC 3.2.3
Working like a charm.
Anyways I did the same for my replacement Evo. (Came with .6 software out of box) OUT OF BOX 4g was not working!
So I said to hell with it I will fix it on my own with help here from XDA.
So to no avail I still have not been able to fix it.
After talking to Sprint in person they told me to hang onto my phone becuase they are coming out with a patch that will fix my 4g because now it is a known problem. So I am hoping when the patch comes out it will not break my root/nand. But damn its pissing me off.
bump
10char

Boston Area 4G

Just wondering is everyone else's phone is connecting fine. I just find it odd that I updated the radio and the wimax and 4G was working fine for 2 days then now its only goes thru scanning, connecting to sprint, obtaining IP address and it just keeps cycling. I dont want to go ahead and mess around with it more since its odd to me that it was working. I've checked my wimax mac and it is correct and I have tried deleting the wimax tree.
Having the same issue here!
FYI Just an update from another forum. It seems to be an issue with Sprint itself. Thank god I was wondering why if it was working and I havn't changed anything why did my 4G die. It seems to be an issue with a provisioning system. Chicago users have been affected by this also. Hopefully everything gets fixxed soon.
Im just glad I can finally stop searching and reading through numerous 4G threads, but in the end all the reading does provide a learning experience. Such as using cat log, dmesg, etc.
here i was thinking i messed my wimax up, thanks guys!!!!
4g back up!

[Q] How to unroot from 2.2?

So I messed up my 4G and will most likely need to return my phone and get a replacement. However, I'm unsure of how to unroot my phone. I did a search but that tutorial is pre-2.2.
So as the title says, how do you unroot from 2.2?
Flash a 100% stock rom:
http://forum.xda-developers.com/wiki/index.php?title=HTC_Supersonic/ROMs
But before you do, what's wrong with your 4g? Many of us, including myself, have had 4g issues and were able to fix them.
Sent from my PC36100 using Tapatalk
So this is what happened.
I was using netanarchy 4.1.9.1 on a Stock ROM and I decided i'd try out King's new kernel. So I flashed it, but decided to go back to netanarchy's 4.1.9.1.
After I did this, my phone would lag every few seconds. I didn't know why, until I saw my 4G signal turning off and on, off and on, repeatedly. Everytime my 4G would turn back on, my phone would hiccup.
So downloaded the latest wimax update from Calkulin's thread (EVO_WiMAX_26023_R01) and flashed it, thinking it would solve my problems. At first I thought it did as 4G stayed on. It scans => connects to Sprint => authenticates, then fails to fully connect. But the 4G radio does stay on the whole time and got rid of the lagging issue.
However, now I have the MAC address issue. The MAC address listed does not match the one behind my battery. Now while trying to fix this problem, I went into /data/misc/wimax and saw that I have 2 xxxxxxxxxxx.tree.xml files. One is the incorrect MAC addy and the other IS correct.
I've been trying to check if my RSA Certificates are still there, but I am unable to check. I've been running the commands.
adb shell
# grep RSA /dev/mtd/mtd0
But this returns nothing...all it says is "grep:not found"
Needless to say, I'm very frustrated. I can't even pinpoint if it really is my RSA Certs causing the problem. I'm fairly new to the rooting/adb'ing scene and taking the phone in for a replacement just seems like the best option to me right now.

[Q] 4G NOT WORKING! Help!

So yesterday i updated my Radio and Wimax with Calkulin and all of a sudden i turn on 4G and it scans, connects, and scans. It usually just stays on scan.
My 4G MAC address is 00:16:08:00:24:05
I am currently running Fresh 3.3.
Help please ive been looking alllll day couldnt find anything.
same here
i got the exact problem and also running fresh. i tried updating wimax, radio, PRL, and profile and still scans then tries to connect and goes back to scanning
HELP........
NANDriod back
I hope you read the instructions and the posts in that thread.
I flashed mine and it worked fine.
I also ran across three instances of 4G problems when flashing "ROM's" and not the radio.
1.) Scans...scans...scans..and stays scanning. - Never connecting (I get 4G in my area).
2.) Scans...obtaining IP address...connecting to Sprint...connected!...disconnect...scans...
3.) Turn on 4G..scans...obtaining IP address...connecting to Sprint..connected..disconnected.. 4G "automatically" Turns off.
Luckily, I did a NAND back up prior to testing ROM's on Amon_Ra 1.80 so it backed up the WIMAX as well. I just NANDdroid back and I was fine.
Flashed teh ROM again with no problems. I can not determine the exact issue that occurred but it occurred.
Full wipe of everything.
SO....NANDROID back to your previous image!!! - That is your answer.
Okay thanks. Haven't tried that one
I'm gana do it right now
sent from my EVO
Still doesnt work
I Nand recovered my Damage Control Rom from before when 4G worked and i go back to turn it on it stays on scanning the whole time. I also did Titanium Backup from before but couldnt find out how to restore my back up from it.
I hope my 4G isnt broken
You know, I hear this a lot lately Radio/Problem/Fresh, just saying.
Try updating your PRL and Profile (Menu/System Updates/Update profile & Update PRL
Yea I hope they just make a solution to all this lol that would make it easier..
Sent from my PC36100 using XDA App
I tried it all and nothing works. I even did the unthinkable..... I un-rooted my evo.
Im bone stock 2.2 with latest update and I updated my firmware,prl,profile and still nothing. I'm gana go to a sprint store later on today to see what they say (need replacement anyways I just notice I got the volume and power crack button)
I'm frustrated that my friends and other people can get 4g and I can't. One of my friends is rooted and he has no problem. Hope that I get good news!
Sent from my PC36100 using XDA App
Check my comment in the below thread, it should solve wimax scanning issues.
http://forum.xda-developers.com/showthread.php?t=807563
Sent from my blah blah blah blah
edit - if you're having mac issues, my note in the that thread won't help you...
Um i see the MAC of death(00:16:08:00:24:05) up there. Usually if you have that your wimax is fuked. Check your proper wimax mac under the battery cover and see if it matches. Also check and see if your cert keys are still there....i forget the command to check in adb shell. If no keys go get your phone replaced.
Also see this thread for more info....
http://forum.xda-developers.com/showthread.php?t=715525

is it possible??

Hey guys, I have had a problem recently devolop on my phone, regarding 4g. First, I will start by saying that I have read just about everything I can read regarding broken 4g, but find nothing pertaining to my specific issue. Secondly, is there anyone is the Las Vegas area having issues connecting to 4g? Next, here is quick run down of the issue. I use 4g daily, all the time. I have never had an issue with it. I am currently using Myn's warm two point two, RLS2, on kings #11. Never had an issue with 4g, no matter what ROM i've used actually. I have NEVER flashed a wimax update. I have flashed a radio update, maybe a month ago or so. So I was tethering while on 4g, and I downloaded a modified "sexy" rosy, with the browser button on it. I then booted to recovery, wiped cache and davlik, then flashed the rosie zip and rebooted. Everything seemed fine, rosie worked, and all was well. Then I went to turn on 4g, and it won't connect. Just says scanning, connecting to sprint, disconnected, scanning, connecting to sprint, disconnected. After trying a billion times, once I got it to connect, for about 10 seconds, i had great 4g signal (as i always did prior to this) then it kicked back to 3g, and was continuing its scanning loop. So i restored my nandroid backup (which I made right before I flashed that rosie zip, while 4g was working) and I still have the same problem. So, my question is, is it possible to screw up the RSA keys, having not even flashed a wimax radio update? Or am i just experiencing some insane coincidence, that this started happening immediately after flashing that rosie zip. I am not sure how much troubleshooting i should put into this, seeing as I dont see how its possible that flashing that zip could've screwed up my 4g RSA keys. I am not sure how to figure out if it's my phone or sprint's network that is the problem. I have read some threads on how to check if the RSA keys are still in tact, which I will probably try to test that later, but I have never used a command prompt, or ADB shell before. I guess it's time for to read up on that and learn how to do it. I get confused about if I'm supposed to be doing these commands from the phone or my PC. Does anyone have any opinions, suggestions, ideas, insight? Anything? Any pointers would be super appreciated. Thanks fellas.
Sounds like 4g network went down. Can't be anything else if you were able to actually connect even though it was only for a brief moment.
Sent from my PC36100 using XDA App
Thanks for the reply. That is certainly what I am hoping. I used root explorer to look at my MAC address, via data/misc/wimax and the number it provides me with matches the number under my battery, so I believe that is a good thing. One of the post's I read, regarding this issue, said to rename that number (xxxxxxx.tree.xml) to xxxxxxxx.tree.xml.old. I'm not exactly sure what that will do, or if I should try it. I am hesitant to play with things I dont know about (yet). Any further suggestions or opinions? If I were to call sprint, would they tell me if 4g was down in my area? We did have 4 straight days with some pretty insane and sporrattic lightning storms. Perhaps something got damaged.
thanks
So it turns out 4g is down near my house. I'm on 4g right now, just in a different part of town. Sorry for wasting the thread space. Thanks again

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