[Q] No Signal - Modem Broken? - Sprint Galaxy S 5 Q&A, Help & Troubleshooting

Problem Solved - I restored the CM12 backup and now I have signal. Do you folks think I will continue to have problems if I attempt to go back to KK again?
After trying the CM12 Nightlies, I decided i wasn't a fan and decided to try some KitKat AOSP Roms before going back to CM11. My first mistake was installing the AOKP Rom which wasn't officially supported for the Sprint version. During set up I realized that there was no cell data and tried to unroot. My second mistake was when I got cell signal back; I decided to test if the initial loss of signal was just a fluke. Re rooted and reflased the same AOKP rom. Once again i lost cell signal. However, when I unrooted to stock this time there was no cell signal on the stock rom. I have no idea how to fix it. I've tried to flash the .pit i saw in another post and tried to use the "Phone EFS Clear" in Odin to no avail. At this point I'm rooted with a the Stock ROM and no cell signal. I realize I got myself into this mess by being dumb but I could really use the help in fixing the issue.
Info - Rooted with TWRP Recovery running Out of Box Stock Rom.

APN fix!
This will fix signal issues!

Thanks, if I go back to a KK ROM and have the same issue I'll have to try it out.

Related

Problem when flashing CM ROM

I'm not sure if this has been covered in another thread, but I was looking around a bit and found nothing and sorry if this isn't the correct place. I wasn't sure.
I have an LG P509(TmoUSA). Yesterday I rooted it for the first time and installed CM10 on it via ROM manager. After it successfully installed, I noticed I didn't have any signal and that my imei was missing. It said "Unknown" . On my dialer I pressed *#06# and a little box popped up with nothing in it. I switched back to stock rom using LG tools and both my imei and signal had been restored. I attempted it again but this time, I tried installed CM 7 via the ROM manager along with Google apps. The same happened. I again, restored back to stock. I attempted it a THIRD time, but, this time I did it via clockwork. I cleared cache and data and installed from zip. I installed CM 7 and CM 10 though this method. Both times my imei was gone and my signal was as well. Right now I'm sitting with stock rom and rooted.
Does anyone know what's going on? Can I not install custom roms with my phone without loosing my imei?
I think you did not upgrade your baseband, thats the only reason you are not getting signal. I cant tell about p509 but i had the same problem, but my phone is p500. You have to flash v20 baseband for new roms i.e higher then gingerbread search the forum i have a link but its for p500. Not sure if both p500 and p509 baseband are same anyway here is link for p500 baseband, just ask if both p500 and p509 baeseband are same if they are same you are good to go.
http://forum.xda-developers.com/showthread.php?t=1217504
I had the same issue but with cm 9 and upgrading to the new baseband fixxed it for me
Thanks for the replies guys. I was in the process of upgrading the baseband, but I fell asleeping during the back up. I'm doing it now as we speak though. :good: I will post results.
It did work! Upgrading the baseband worked! Thanks for helping me out My IMEI and service as came back.
..and by the way, I think P500 and P509 are the same.

[Q] Lost all data/mobile connectivity after flashing CM10.1.0.1

I then flashed other modems, versions of CM10.1 and no luck. I odin'd back to stock 4.1.1 and I am still disconnected to the mobile network. What do I do
Please Help
jbjarko said:
I then flashed other modems, versions of CM10.1 and no luck. I odin'd back to stock 4.1.1 and I am still disconnected to the mobile network. What do I do
Click to expand...
Click to collapse
I am also having the same problem I went from MOAR rom to CM 10.1 and my phone says roaming. I try to call and it tells me to call Verizon. SO I went back to MOAR rom and I still have the same problem
zavala_android said:
I am also having the same problem I went from MOAR rom to CM 10.1 and my phone says roaming. I try to call and it tells me to call Verizon. SO I went back to MOAR rom and I still have the same problem
Click to expand...
Click to collapse
Same issue here. Had to restore to previous.
Check Q&A and Dev threads.
The .1 breaks data. Either go back to release, RC5 or go to Nightlies.
I went to nightlies and i'm working fine now. (and get the new features)
My problem is I flashed back to stock via odin and I still have no data, at all. It's roaming...Will attempt to reflash tonight.
Alright I'm on the latest OTA build, MF1 I believe, still roaming only. Where should I go from here, what should I flash to hopefully get rid of this. *228 doesn't work. *2767*3855# says my phone is not authorized to make this call, etc...I'm stuck.
Nevermind, I did a full reset and have all my data back. I'm on the latest OTA, can I root, unlock, and proceed as normal from this build?

[Q] Cannot acquire data connections

I'm having an odd issue. I've been running the latest Hyperdrive ROM release on my S3 for about a year now, but I can't stand Touchwiz ROM's so I've tried flashing AOSP ROM's such as CM, AOKP, even Beanstalk. I love all of these ROMs for tons of reasons but I keep running into the same problem, everything works great but I can't receive mobile data. My mobile network state is Disconnected and I have no idea how to fix that. I can text, call, and connect to wifi fine, but no mobile data. I've backed up my EFS but I'm not sure that's connected to the same thing. I have the network set to "CDMA/LTE" (would be more specific but each ROM has it different), but for whatever reason the APN settings are inaccessible. The menu option is clearly there but I cannot open it to ensure I'm using the LTE APN. I decided to give this another go yesterday, and still no dice. However upon restoring my CWM backup of Hyperdrive, I have now lost 4G and am stuck on 3G. My network type now shows eHRPD and while I can access my APN's (I was always able to on Touchwiz ROMs) I can tap on the Verizon LTE APN, but it seems to make absolutely no change to the actual APN. In fact when I reboot it it defaults back to eHRPD all over again.
So, 1. have I somehow screwed myself over? and 2. what am I missing with AOSP based ROMs?
Thanks for any and all help.
TheCing said:
I'm having an odd issue. I've been running the latest Hyperdrive ROM release on my S3 for about a year now, but I can't stand Touchwiz ROM's so I've tried flashing AOSP ROM's such as CM, AOKP, even Beanstalk. I love all of these ROMs for tons of reasons but I keep running into the same problem, everything works great but I can't receive mobile data. My mobile network state is Disconnected and I have no idea how to fix that. I can text, call, and connect to wifi fine, but no mobile data. I've backed up my EFS but I'm not sure that's connected to the same thing. I have the network set to "CDMA/LTE" (would be more specific but each ROM has it different), but for whatever reason the APN settings are inaccessible. The menu option is clearly there but I cannot open it to ensure I'm using the LTE APN. I decided to give this another go yesterday, and still no dice. However upon restoring my CWM backup of Hyperdrive, I have now lost 4G and am stuck on 3G. My network type now shows eHRPD and while I can access my APN's (I was always able to on Touchwiz ROMs) I can tap on the Verizon LTE APN, but it seems to make absolutely no change to the actual APN. In fact when I reboot it it defaults back to eHRPD all over again.
So, 1. have I somehow screwed myself over? and 2. what am I missing with AOSP based ROMs?
Thanks for any and all help.
Click to expand...
Click to collapse
I would try flashing a stock ROM such as the one on ScottsROMs.com
The 4.3 stock rooted, OTA disabled, UNlocled boot loader and no Knox.
See if you can get data with that. Firmware for the radio may have gotten messed up, and this would re-write that data (long shot, but worth a try). Another option would be to re-flash the radio maybe.
And now that I think of it, which radio are you on? MF1, ML1, NE1? Because I think I read somewhere that certain ROMs require a certain radio newer than _____ (don't remember which radio).
XdrummerXboy said:
I would try flashing a stock ROM such as the one on ScottsROMs.com
The 4.3 stock rooted, OTA disabled, UNlocled boot loader and no Knox.
See if you can get data with that. Firmware for the radio may have gotten messed up, and this would re-write that data (long shot, but worth a try). Another option would be to re-flash the radio maybe.
And now that I think of it, which radio are you on? MF1, ML1, NE1? Because I think I read somewhere that certain ROMs require a certain radio newer than _____ (don't remember which radio).
Click to expand...
Click to collapse
Thanks for the help. I flashed a 4.3 ROM as you suggested, and no difference. I then chased some threads around and decided to just factory reset it as if I was going to return it. Still nothing, I get 3G, not LTE. I was using MB1 before I flashed an AOSP ROM, at which point I flashed the MF1 firmware and then the ML1 modem. That did nothing to fix my issue. I'm not quite sure what else I can do at this point.
TheCing said:
Thanks for the help. I flashed a 4.3 ROM as you suggested, and no difference. I then chased some threads around and decided to just factory reset it as if I was going to return it. Still nothing, I get 3G, not LTE. I was using MB1 before I flashed an AOSP ROM, at which point I flashed the MF1 firmware and then the ML1 modem. That did nothing to fix my issue. I'm not quite sure what else I can do at this point.
Click to expand...
Click to collapse
Hmm... ML1 should be new enough.
That's a bizarre issue.
For me, I mainly get 3G. It seems as if either Verizon pulled some LTE towers near me, or my data antenna doesn't have very good contact. Maybe you're having the same issue.
Do you EVER get 4G? Or literally never?

ROM Signal lost??

After installing custom roms like Cyanogen or paranoid etc. I lost my IMEI and unable to recover. So I flashed recovery again and back to normal. I did researched and tried a lot of times but still lost the signal. I am using Samsung i9300 (s3).
Like this
BASEBAND VERSION :UNKNOWN
IMEI:UNKNOWN
I also tried to use EFS pro to restore IMEI. However there are no effects.
So how can I solve this issue with custom MOD? Please help.
start by flashing stock ROM to get baseband back

Do I need to flash anything other than just the ROM?

I recently rooted and flashed Sultan's MM ROM. I began to have network issues and this morning I saw No SIM Card error. Rebooting fixes it for a while, before it returns. I also see that the signal indicator drops to no bars a lot (used to have this on Lollipop too). I tried resetting APN settings. That didn't help much.
I flashed using TWRP 3.0.1. Could that be an issue? I see many threads saying that 2.8.6 was stable.
In this thread, the person said they had flashed CM Snapshot to address a similar error. Is that something I have to do? If so where can I find it? I am on TMo USA.
Or is there another fix?
Have you flashed latest modem?
http://blazingphoenix.in/mzo/ONE/Modems/

Categories

Resources