Develop Bugs

Broken 4G, tried a bunch of things

So I have a 4g problem. In Santa Clara, CA.
I get a decent signal and it holds fine, no disconnects, but there is not data transfer.
Things I tried:
- Checked MAC and it matches the case.
- Deleted tree.xml
- Reflashed Radio and Wimax
- Updated PRL, Profile
No luck with any of them.
4G worked a while ago, then I flashed CM6, then back to stock 2.2.
Current setup: Stock 2.2, netarchy's kernel 4.1.8-cfs.
Any suggestions? Did I miss any fix possibilities?

you're keys are most likely gone.

Last-Chance said:
you're keys are most likely gone.
Click to expand...
Click to collapse
Oh no, who's gonna let me in the house
Seriously though, what does that mean?
Also, more importantly, is there a way to fix it?

Did you check your connection with speed test? Is the 4G problem restricted only to Web browsing?
I ask because the Ad Free app will block 4G Web browsing, but not 4G anything else and not 3G Web.
Sent from my PC36100 using XDA App

Maxy6 said:
Did you check your connection with speed test? Is the 4G problem restricted only to Web browsing?
I ask because the Ad Free app will block 4G Web browsing, but not 4G anything else and not 3G Web.
Sent from my PC36100 using XDA App
Click to expand...
Click to collapse
No AdFree here. Can not connect to the web or use mail.
So no connection of any sort.

install alogcat and see what wimax errors show up

TeknoJnky said:
install alogcat and see what wimax errors show up
Click to expand...
Click to collapse
So, installed alogcat, run it. I'm guessing I'm looking for "E/Wimax ....."
When filter by "E/Wimax", I get the following
"E/Wimax ( 730):<DC CONNECT> IO Error:msg='/127.0.0.1:7771 - Connection refused"
Also
"E/Wimax ( 730)<DCP> Bad return status 0xffffffff"
Does that mean anything?

fua1 said:
So I have a 4g problem. In Santa Clara, CA.
I get a decent signal and it holds fine, no disconnects, but there is not data transfer.
Click to expand...
Click to collapse
didn't see this part. Disregard my last comment.
Also keys = rsa keys. When you delete them you're not able to connect to 4g at all.

I had this problem for a while and it was because I was on an old radio and couldn't get the new one to flash properly without wiping thee cache first
Sent from my PC36100 using XDA App

abaileyb said:
I had this problem for a while and it was because I was on an old radio and couldn't get the new one to flash properly without wiping thee cache first
Click to expand...
Click to collapse
Thanks.
I thought that might be the case. So I flashed the new radios, and as far as I can tell they're up to date.
Baseband: 2.15.00.07.28 (from phone info settings)
Wimax: 26023 (from wimax_mtd)
The interesting things is that it appears to be connected, and even get's IP issued, just no data transfer...

I was having the same problem. I did everything u listed above n nothing still didn't work. I was running vael Rom with kings bfc #9 kernel. I didn't know what else to do so I Decided to start from scratch....did a full wipe flash the radio, the wimax and vael Rom again still no luck. So I told myself **** it....then I decided I wanted to try Fresh Rom. So I wipe everything again n flash Fresh on to my phone and now my 4g is working again....I don't knowing that would help u but it did it for me. Hope u get it figure out.
Update: ok so I thought about flashing a new kernel. So I made a NAND backup and flashed netarchy-toastmod kernel. After flashing my 4g stop working again.
Did a NAND restore. Then this time I wipe the delvik cache. Then flash the kernel and 4g is working...

kcsoldier said:
I was having the same problem. I did everything u listed above n nothing still didn't work. I was running vael Rom with kings bfc #9 kernel. I didn't know what else to do so I Decided to start from scratch....did a full wipe flash the radio, the wimax and vael Rom again still no luck. So I told myself **** it....then I decided I wanted to try Fresh Rom. So I wipe everything again n flash Fresh on to my phone and now my 4g is working again....I don't knowing that would help u but it did it for me. Hope u get it figure out.
Update: ok so I thought about flashing a new kernel. So I made a NAND backup and flashed netarchy-toastmod kernel. After flashing my 4g stop working again.
Did a NAND restore. Then this time I wipe the delvik cache. Then flash the kernel and 4g is working...
Click to expand...
Click to collapse
Thanks for the info. Looks like I better get wiping and flashing.
Did you wipe data as well or just the caches?

Wipe data and cache when flashing a new Rom.
Wipe dalvik cache when flashing a new kernel

Same thing happened to me. I ended up flashing the RA Recovery because I heard CW wasn't wiping cache's correctly. So you might want to try that as well.
I tried wiping both caches 1-2 times multiple times and it never worked. Then one time I wiped both caches 3 times and it worked.

Mr. Monkey said:
Same thing happened to me. I ended up flashing the RA Recovery because I heard CW wasn't wiping cache's correctly. So you might want to try that as well.
I tried wiping both caches 1-2 times multiple times and it never worked. Then one time I wiped both caches 3 times and it worked.
Click to expand...
Click to collapse
Do you mean just wipe and it worked, or wipe then flash radios?
Thanks.

Last-Chance said:
didn't see this part. Disregard my last comment.
Also keys = rsa keys. When you delete them you're not able to connect to 4g at all.
Click to expand...
Click to collapse
any idea how to get them back? I cant connect at all. flashed radio, wimax, stock kernal, stock all in one rom, nothing gets it back.

ajk511 said:
any idea how to get them back? I cant connect at all. flashed radio, wimax, stock kernal, stock all in one rom, nothing gets it back.
Click to expand...
Click to collapse
Maybe this will help somehow:
http://forum.xda-developers.com/showthread.php?t=716694

fua1 said:
Maybe this will help somehow:
http://forum.xda-developers.com/showthread.php?t=716694
Click to expand...
Click to collapse
Can't try it right now but it looks like that will be my fix. Thank you for the link.
Sent from my PC36100 using Tapatalk

I have tested my 4G datacard from Sprint in that area (top of Palo Alto), where I had 1-2 bars of 4G signal.
Because they are still testing there, I was unable to connect...
This might be your case -- they are still testing, and probably turn connections on/off during this period.
Best of luck though!

This 4G problem happened to me...i dug around in my backups and found a wimax.img from nandroid folder on sdcard. You need to find an older wimax image that was created during a back up...these wimax.imgs that are an image of your phone HAVE YOUR WIMAX KEYS

(q) data connection problems!

I am having a huge problem ever since i installed Myn new rom i havnt had before. My 3g is slow and a lot of the times the data just drops and i get the error like my username/pass word is incorrect. Also it will switch me to roaming. I tried updating my radios that didnt work. does anyone have an idea whats wrong i tried restoring 3 different roms but it still didnt work.
I just keep receiving a code 67 registration error

Dont restore at first.
Do a full wipe not just cache and dalvik
You must di this when you restore too.
But flash the stock 2.2 deodex or odexed roms and see what happens.
Lastly it could very easily just be your sprint network is having issues.
Sent from my PC36100 using XDA App

[Q] Data network not connecting

Hi. Well I had rooted my phone and was running CM6.1.1 with snapdragon kernel. When the evo shift came out, I bought it and changed over to the shift. 3days in to using shift, the micro usb port failed and would not charge. It wouldn't even recognize when connected to my computer. So had to go and return it.
But when I changed over to evo, it started having problems with data connection. I could make calls but it would not be able to connect via 3g. It could connect through wifi but that was it.
So I unrooted my phone using .ruu and haven't tried it yet. Could you guys help me out and advise me in what option I have. Thanks again.

I had a similar problem when I had my hero....I lost 3g and ended up finding the solution was to wipe all, flash a sense rom and then go back to cyanogen....

Thanks. I'll try that and see what happens. I'll switch to evo tomorrow and see how it goes..

i had a similar problem with 3g data being very faulty after i updated all of my radios to the latest versions. what i did to fix the problem was full data/cache/dalvik wipe and then flash the radio: EVO_Radio_2.15.00.11.19, flash the wimax:EVO_WiMAX_27167_R01, and flash the PRI: EVO_PRI_1.77_003. Prior to that, i had the latest PRI and it would constantly screw with my data connection, so whatever you do, do not update to the latest PRI. Its actually been said that something weird is up with it and that this problem is common.
the radios can be found right here:
http://forum.xda-developers.com/showthread.php?t=715485
good luck man, hope this helped!

I have the same issue. I went from CM7 to a sense ROM and I still dont have date even after the new radio updates. Is there anything else I can do?

Have you already tried reverting back to your old radio that worked?

sure did. Nothing.

I actually did a full unroot using ruu. Then started my phone again back in stock mode. It worked after full unroot. Now I re-rooted my phone and back to using CM6.1.1 with snap dragon kernel.

Same Issue Please Help
Im having the same issue as the OP. I went from CM7 to a sense ROM and lost my Data connection. I can only connect through wifi. However I can't update my profile or my PRL This is a pretty big issue for me as I can't use any data features on the phone except when connected via wifi.
Can someone please suggest a way to re-establish my ability to connect to the sprint network. I do not have 4G in my area so I can't try that route. I have searched the forum for the last day and a half and still haven't found a solution. Ive tried reflashing the newest radios and still no luck. I have cleared the dalvik, cache and factory data reset mutiple times and I have tried sprint lovers newest ROm and also even tried reverting back to the original backup I took when I first rooted before I flashed any ROM's and still no luck. I also tried the ##3283#/MSL code/Data/ restore option and still nothing.
ANY Suggestions? Unrooting would be a last resort option followed by going to sprint and getting a new phone.

roger69504 said:
Im having the same issue as the OP. I went from CM7 to a sense ROM and lost my Data connection. I can only connect through wifi. However I can't update my profile or my PRL This is a pretty big issue for me as I can't use any data features on the phone except when connected via wifi.
Can someone please suggest a way to re-establish my ability to connect to the sprint network. I do not have 4G in my area so I can't try that route. I have searched the forum for the last day and a half and still haven't found a solution. Ive tried reflashing the newest radios and still no luck. I have cleared the dalvik, cache and factory data reset mutiple times and I have tried sprint lovers newest ROm and also even tried reverting back to the original backup I took when I first rooted before I flashed any ROM's and still no luck. I also tried the ##3283#/MSL code/Data/ restore option and still nothing.
ANY Suggestions? Unrooting would be a last resort option followed by going to sprint and getting a new phone.
Click to expand...
Click to collapse
going to a sense rom, dialing ##data# and then entering your msl, then going to edit mode, top section, hit menu, and do a reset?
this usually fixes alot of data issues from what i am aware. It won't harm your phone anyway.

Yeah I have tried the ##data# restore multiple times and still nothing. It will reboot and begin the hands free activation but it never successfully completes it. Afterwards when I try to update profile it just sits in a loop saying "the network is preparing you services..." for 20 mins and then times out with nothing happening. I even tried the ##data# restore method again after reading this, for good measure, and still nothing.
Is it possible to connect via 4G and update my profile even tho I cant via 3G? I'm about an hour away from any 4G service I think Cincinnati may be the closest.
this is extremely frustrating and the worst part is that I dont know how it happened as I followed every instruction to the tee and Ive flashed mutiple multiple ROMS over the last 6 months and have had no problem until I tried going from CM7 to myn's warm2.2 rls5. After flashing the ROM and wiping EVERYTHING except the SD card I flashed the new Radio's (Cualkin's Combo pack with the newest Radios) and that's when I noticed the data connection was gone. I'm not sure as which step of the process caused the issue as I didn't notice it until I began to go thru the initial setup on the phone and was unable to connect to my gmail account.
I have backed up a few versions of rom's. Would they have the Data info I need and maybe a could just copy and paste a file or does this info need to be downloaded from sprint in order to setup the phone?
Please any advice??? I'd like to try all my options before I reroot and exchange it, If unrooting and returning is my only option can someone please point me to a good guide for the process? I used Unrevoked 3.21 for the root.

Okay, I need some serious help with my phone.

After running on a stock ROM(but rooted /w TWRP), I decided that I wanted to install a custom ROM so that I could tether if needed. Well, big mistake. I wiped stock and accidentally wiped my stock backup when going to flash a custom ROM and so far I've tried XenonHD, Jedi X19, IllusionROM, and now I'm on a Stock-Tweaked. So far, every single ROM has caused massive delays in receiving SMS messages and syncs from stuff like gmail.
Data is definitely working, and i've tried both the epc.tmobile.com and fast.tmobile.com APNs but my phone keeps hanging when it trys to send some texts and, if I have texts "waiting" to be delivered to my phone, I only receive them once I turn on my phone screen or only if the screen is on. So what the hell is going on here?

Don't mess around with roms and flash the stock-root injected one via Odin.

Download goo to install latest twrp and then download stock ROM for your device, wipe first 4 options not internal or external and not otg USB at least 3 full wipes then flash stock ROM and wait and you should b good

I installed the stock rom via Odin and still having this issue. =/

It seems that if I go to 4G/3G/2G mode only the issue doesn't persist. Or at least not as much. But then I can't use LTE! =/

Call tmobile tell him you did a factory reset on your phone and that you're having this problem and they will reset the network on their side. This happened to me before in the past and a quick call to them fix my problem. Hope this helps
Sent from my SGH-T889 using XDA Premium 4 mobile app

I just had the same exact issue in the Pittsburgh area. I had to replace my sim card and now all is well.
Sent from my SGH-T889 using xda premium

[Q] Sprint Note 2 LTE Issue

Hello there, I have been in the search for a perfect 4.4 ROM to work, I seem to be at an impass..
The 2 that I have tried, and Quite enjoyed so far are the Omni ROM and the Cyanogenmod 11
Both roms have the same issue, I cannot connect to a 4g LTE Sprint tower. I know the LTE Towers are working, My mom has the same phone, Sprint Note 2 and I have Mac's Rom on it and is picking up a very strong 4g Signal, yet my phone which sits literly right next to it, Refuses to get any 4g.. I drove around, went to known working areas, Never once did I snatch a 4g signal.
I played with the settings, it is set to LTE mode, I even tried Flashing as a fresh Install..
I tried flashing a Stock rom, but for some reason after it installs, and on boot up the phone does not work. I get a blank screen and literly nothing. I have to pull the battery to get it to turn back on. At that point I have to either Re-flash or restore a backup through CWM.
Any help would be appreciated, I miss my LTE Thanks

Same issue here. Not sprint though...

In cm11 set your mobile network type to cdma+lte/evdo or global. See if that works.
Next you can try to flash a touch wiz rom and do a hands free activation, verify lte works on the touch wiz rom, then flash to CM11 and see if you can connect to lte.

DarkManX4lf said:
In cm11 set your mobile network type to cdma+lte/evdo or global. See if that works.
Next you can try to flash a touch wiz rom and do a hands free activation, verify lte works on the touch wiz rom, then flash to CM11 and see if you can connect to lte.
Click to expand...
Click to collapse
I have tried setting it to both. Global shows no signel what so ever on anything, I currently have it on cdma=lte/evdo and I just get a good 3g signal..
I might try that one out, Which is a good touch wiz rom to try and do that with ? I dont think I even tried a touch wiz rom yet

scorpnet said:
Hello there, I have been in the search for a perfect 4.4 ROM to work, I seem to be at an impass..
The 2 that I have tried, and Quite enjoyed so far are the Omni ROM and the Cyanogenmod 11
Both roms have the same issue, I cannot connect to a 4g LTE Sprint tower. I know the LTE Towers are working, My mom has the same phone, Sprint Note 2 and I have Mac's Rom on it and is picking up a very strong 4g Signal, yet my phone which sits literly right next to it, Refuses to get any 4g.. I drove around, went to known working areas, Never once did I snatch a 4g signal.
I played with the settings, it is set to LTE mode, I even tried Flashing as a fresh Install..
I tried flashing a Stock rom, but for some reason after it installs, and on boot up the phone does not work. I get a blank screen and literly nothing. I have to pull the battery to get it to turn back on. At that point I have to either Re-flash or restore a backup through CWM.
Any help would be appreciated, I miss my LTE Thanks
Click to expand...
Click to collapse
Personally I would recommend doing this:
Backup everything to your PC (both internal and external)
Delete the contents of the "0" folder on your internal card. If you use ES File Explorer, you'll need to enable root access, and then while in the app hit the menu button. The left menu will slide open and you'll see "Local".... underneath that you'll find the "0" folder. The problem is the way CM and Touchwiz mount the file system - they don't do it the same way. So when you do a factory reset in CWM, it doesn't clear out one of those folders. (I found this thread helpful - especially posts 2 & 4) I had major data problems on CM10 for 2-3 months, then I found this out.
After you do that go back to stock. Make sure you download the keep root file as well.
To play it safe, once stock, I highly recommend entering ##72786# in your dialer. The phone will grab the latest prl and update your profile. Whether or not you want to update the software (incl modem) is up to you, but I'd rather not get into the knox world.
Verify working gps. (I prefer "GPS Status")
Then go back to CM11.

I will try that out thanks
Sent from my SPH-L900 using XDA Premium 4 mobile app

scorpnet said:
I will try that out thanks
Sent from my SPH-L900 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Update us on your progress.
If it works, consider hitting the thanks button - at the very least the guy in that other thread - I know I thanked him - his info saved me from going crazy!!!
I had working data (3g/LTE) on any touchwiz, but not on CM. It turned out that I had some corrupted data that wasn't getting deleted upon a factory reset. After I cleared out that data, everything was fine.
Hope your phone is back to normal!

Finally was able to download everything and run the tip, Thanks a lot dude! That helped and that did it ! I got 4g Back and everything is all peachy!!! Thanks again!