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Ok here is the problem... I rooted the phone, played with some settings, explored the android platform in general. Somehow, my data has stopped working. I can make calls and send texts no problem, when I try to access internet or google play store, it fells me that I have no data connection available or something of the sort. I have tried flashing different roms, played around with switching between Global and Lte/cdma radio bands. When I switch bands, I get either 4g or 3g, but within half hour it stops working again. After a restart, same thing happens, it worka and then atops. I figure there is something messed up with the modem. Please advise.
Also, anyone else experiencing sudden restarts with CleanRom 5.0? My phone reboots every once in a while for no apparent reason.
tim.janov said:
Ok here is the problem... I rooted the phone, played with some settings, explored the android platform in general. Somehow, my data has stopped working. I can make calls and send texts no problem, when I try to access internet or google play store, it fells me that I have no data connection available or something of the sort. I have tried flashing different roms, played around with switching between Global and Lte/cdma radio bands. When I switch bands, I get either 4g or 3g, but within half hour it stops working again. After a restart, same thing happens, it worka and then atops. I figure there is something messed up with the modem. Please advise.
Also, anyone else experiencing sudden restarts with CleanRom 5.0? My phone reboots every once in a while for no apparent reason.
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Have you tried flashing a different modem?
Worst come to worse, ODIN back to 100% stock and start over.
awenthol said:
Have you tried flashing a different modem?
Worst come to worse, ODIN back to 100% stock and start over.
Click to expand...
Click to collapse
No clue how to flash a modem
http://rootzwiki.com/topic/34053-of...zon-sgs3-sch-i535-odin-or-recovery-flashable/
Pick the latest from the right column and flash in recovery as you would a ROM.
awenthol said:
http://rootzwiki.com/topic/34053-of...zon-sgs3-sch-i535-odin-or-recovery-flashable/
Pick the latest from the right column and flash in recovery as you would a ROM.
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Click to collapse
Looked into it a bit more.... my 4g or 3g works after a restart as long as there is a demand for it, ex. While surfing or streaming radio, as soon as there is no demand, the phone shuts it off and I can't turn it back on. It tells me no signal found for mobile networks. While voice and mssg still work. I refreshed the modem and that didn't help. Short of going back to stock, any other suggestions?
I hope you guys can help me out with a problem. Sorry about the long post ahead, I'm just trying to give as most information as possible.
Introduction: I recently installed the latest releases to see how jellybean was coming along on the Desire S. I flashed PACman and then CM10. I liked them a lot, but I usually prefer to wait until a final release, so I reverted my backup of CM7.2. One week later I notice my internet connection is very unstable, I don't know if it's my carrier's fault, or the upgrade messed with something and the backup didn't restore, and reflashing CM10 changes nothing. I didn't notice any problems right away after testing the other roms, but like I said, everything happened around the same time frame.
Problem: First of all, if I enable 3G, it will almost never connect. Sometimes I get a 2G connection, but most of the times there is no internet at all. On 2G only, it seems that a few minutes after screen-off, the connection drops. Only after I wake the device, it realizes the connection was down and resyncs with my google account. And even while awake, 2G is still very unstable, I get numerous network errors on the facebook app timeouts on google play.
Device info: Should I test other radios? I noted that it came from the factory with 3822.10.08.04_M, and was on 20.28b.30.0805U_38.03.02.11_M (I don't remember when that changed, I don't think I've ever explicitly changed a radio). Now I just flashed 3822.10.08.04 back, but it didn't change anything. Could HBOOT also have any influence the problem? I remember I downgraded do 0.98 so I could S-OFF using Revolutionary. Now I'm on 6.98.1002.
Lastly, probably a logcat would help. How should I go about doing it? Reboot phone, wait for it to connect, put it to sleep until it disconnects, wake it up, wait for reconnection, then logcat? Since the problem persists both on CM7.2 and CM10, I decided to stick with 10.0 (nk111's cm-10-20130109)
Thanks a lot in advance!
Here's a logcat I took today, if anyone is willing to investigate. Started recording after gtalk was online, turned off the screen, waited a bit, turned it back on and checked that gtalk was offline.
http://pastebin.com/71ZcgjNd
I'm having similar issues on Pacman 18 and 19.3.
My connections seem stable, but I cannot switch between 2G and 3G without rebooting. If I don't reboot, the phone has no internet connection.
Also, on 3G, battery life is very bad.
I'm wondering if it would help to flash a different radio. I never changed the existing radio.
Okay, so I've been searching the net for days and to no avail. I installed the new Cyanogenmod on my Nexus 5 and found it, well, awful. It kept hanging, restarting etc. Now when I tried to revert back to stock, I downloaded the image file from developers/google/com/android/nexus/images, and there's no 4g. No mobile data whatsoever. I can call, the Wi-Fi is working, but no mobile data. I've tried factory resetting, installing a different radio zip etc. When I install Cyanogenmod again, the 4g works again, but after going back to stock nothing again. Any help?
Wow, this is stupid, but after trying everything, including running every new stock rom, I tried installing the 4.4 (KRT16M) AND IT FINALLY WORKED. I'm gonna leave this up for anyone in the same situation as me.
Well, would you guess, the problem's back, but from a different angle. After installing 4.4.0, and letting the device upgrade itself to 4.4.4, the data worked perfectly. Now I tried to install the android L developer preview and again no data connection.
Does anyone have any idea if it could be a regional issue or something? I tried flashing older radio zip files but to no avail, now back to 4.4.0 .
Try setting a new APN with your carrier settings.
I lost connection all together last Saturday. I flashed CM 11,Friday and all was well. Received a call Saturday, it rang once then lost connection. Had to reboot four times to regain service and that was short lived. After any call incoming or outgoing, I lose service. All APNs are present. WiFi works. SIM alert when SIM is removed. SIM works fine in my N4. Did a complete tear down and it's not hardware related.
---------- Post added at 09:58 PM ---------- Previous post was at 09:58 PM ----------
Sim works fine in my N4 also
If you loose signal might be a radio problem, still if you have signal but no connectivity try with the new APN, android (CM, stock unless carrier stock) had errors in the APN list for my carrier and I had to manually add it each time I used a new rom for several years.
Itsukki said:
If you loose signal might be a radio problem, still if you have signal but no connectivity try with the new APN, android (CM, stock unless carrier stock) had errors in the APN list for my carrier and I had to manually add it each time I used a new rom for several years.
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im having some trouble with my radio also, it will work fine for a bit, then out of no where, ill download an app and it the signal will just go blank, not grayed out, but blank, ive tryed many different things but not apns, would anyone happen to know what T-mobiles apns are?
Edit: I just now noticed in my list of apns, its set to Metro pcs, and theres a few Tmobile apns, what should i choose?
tmobile
tmobile LTE
or tmobile LTE ipv6?
Andromendous said:
im having some trouble with my radio also, it will work fine for a bit, then out of no where, ill download an app and it the signal will just go blank, not grayed out, but blank, ive tryed many different things but not apns, would anyone happen to know what T-mobiles apns are?
Edit: I just now noticed in my list of apns, its set to Metro pcs, and theres a few Tmobile apns, what should i choose?
tmobile
tmobile LTE
or tmobile LTE ipv6?
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Click to collapse
What were the last few apps you do loaded before this happened to you
BlackElvis79 said:
What were the last few apps you do loaded before this happened to you
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Click to collapse
i think speedtest, advanced download manager, the first time it happend, i had just flashed slimkat 5.10, i set everything up, and i used the LTE quick tile to turn off LTE, my hole signal dissopeared and my phone crashed, i had to restore to stock to get it back. now it does as i discribed erlier.
man, i just got off the phone with a robot from tmobile customer service. she had me turn the phone off and pull the sim card, she told me she "refreshed" my service on her end and the problem was "gone". ya, its not.
Okay so last night I installed CM 10.2.1 on my Samsung galaxy S3 (Verizon SCH-1535)
Everything's running smoothly but for some reason I don't have any service anymore
I'm using a Family Mobile SIM card and APN, still have my IMEI and MEID but in the phone status screen PRL version, MIN and my phone number show up as unknown. Also it says that my mobile network state is disconnected.
Right now I can't send texts and call anyone. However I still do get automated billing texts...
Not sure what to do right now. I still have a CWM backup of the stock ROM. I'm rather new to this custom ROM and bootloader thing so I'm worried that I'll accidentally brick my phone.
Nevermind, i fixed it!
What did you do to fix this? I've had almost the exact same experience over the past couple of days but haven't managed to recover my service.
Background: Flashed back to Alliance 23 (TW 4.3) to see if TW would solve anything and it didn't. I've flashed the ML1 modem and NE1 and still nothing. I even went to a Verizon store to replace my SIM in case the PRL got botched somehow. I can receive texts and send texts sometimes but not consistently, cannot make or receive phone calls.
On Alliance I have the CDMA/LTE/EVDO network mode selected (defaults to global). I was previously trying out CM12.1 and had issues with the modem type sticking to LTE/CDMA (auto prl), after reboots it would switch back to LTE/GSM and the network modes presented were LTE, 3G, and 2G which didn't seem right.
The last time I had a fully functioning radio was with SlimKat Stable. Was having issues sending/receiving MMS and figured it was time to upgrade so went to CM12.1. Since I've tried flashing Alliance and other versions of CM I don't think flashing back to SlimKat will do much but I guess that's next on my list..
I feel like I'm missing something simple. Anyone have ideas?
Jeremy.Stewart85 said:
What did you do to fix this? I've had almost the exact same experience over the past couple of days but haven't managed to recover my service. ...
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Click to collapse
I may have managed to fix this. Remembering the IMEI issues that happened early on in this phone's life I figured it might have something to do with that.
My IMEI was correct in my phone status, however my phone number and MIN were not correct (phone was 000-000-0023 or something strange) and my MIN was 00. Something definitely broken there.
Steps:
It requires you to have an IMEI backup already. I had done the reboot nvbackup from adb ages ago and decided to give it a shot with a reboot nvrestore.
Phone rebooted but was stuck on the Samsung logo...uh oh.
Had to do a battery pull and reboot to recovery manually.
Restored Alliance 4.3 backup and voila! Full service, phone number and MIN were correct.
Restored my CM12.1 backup image I had been trying out. Right off the bat there was still the same issue of no service.
Dialed the phone info menu (*#*#4636#*#*) and changed preferred network type to CDMA only, ping test succeeded.
Went to Settings | Mobile Networks and things looked more normal which was a great sign. My Preferred network type was actually blank, so I selected LTE (recommended).
Tried a test call to #832 and success!
Rebooted to make sure everything sticks and it does.
That was not a fun experience...still not entirely sure what actually broke but I've got a usable phone again and to top it off it's on CM12.1 which is just awesome so far
I've flashed different radios and the oxygen firmware, still my signal fluctuates all without me moving the phone on my desk. Ideas?
Signal also drops out for no reason.
I'm having the same issue with mine as well, bumping your thread to get it noticed. I haven't flashed a different radio, but I'm running the stock COS12.1 ROM, never rooted, and always updated via OTA updates. I think this occured with COS12 as well, but I'm noticing it more with 12.1. I've also noticed that it takes the phone quite a while to switch over from WiFI to LTE when I leave the house...not sure if it's related.
I'm looking to avoid doing any modding to my phone at the moment because I really need to have it active at all times to receive calls, but the fact that it randomly loses signal is frustrating.
I logged the network activity last night over the course of several hours at 10 second intervals. [Edit: Phone was stationary on my nightstand the whole time with the occasional picking it up to look at the time.] There are quite a few points where signal is lost. Usually it's only for a few seconds, but it seems like it's enough to miss calls (what prompted me to log the signal is when I received a voicemail but did not have any missed calls).
Does anyone know if there's a fix for this? The app I used for logging is "Network Monitor" from the Play Store.
Still not convinced after flashing 44s didn't help then flashing the updated Oxygen firmware still nothing. My signal will go from to bars to emergency calls only. Deleted all the Unneeded apns.
Rom: Resurrection Remix.
Service Provider: Net10 using AT&T towers.
When did this start happening: As soon as I updated my firmware to the latest Cm 12.1 per RR thread.
I've tried everything i can think of, even using the hidden phone menu to select LTE/GSM. Still no luck. Every once in a while when i am at a place where i get good signal this isn't an issue. Seems to happen when i get 3 bars or less.
Still not convinced after flashing 44s didn't help then flashing the updated Oxygen firmware still nothing. My signal will go from to bars to emergency calls only. Deleted all the Unneeded apns.
Rom: Resurrection Remix.
Service Provider: Net10 using AT&T towers.
When did this start happening: As soon as I updated my firmware to the latest Cm 12.1 per RR thread.
I've tried everything i can think of, even using the hidden phone menu to select LTE/GSM. Still no luck. Every once in a while when i am at a place where i get good signal this isn't an issue. Seems to happen when i get 3 bars or less.
Just confirming this as an issue on Ting, I was on the 12.1 Nightly's, I also tried Exodus. I can be at close to full service and for some reason signal will drop out constantly, yesterday I had a 22% time without signal according to battery stats.
Clicking on network operators and selecting the correct one only temperately fixes the problem.
Solved the same exact issue on my phone
Had the same issue on mine after updating to 12.1 OTA. Selecting my APN didn't work, my connection kept going in and out to my carrier. It was as though the radio would shut off and then turn back on every 15 seconds or so. I reset default APN's, and all is back to normal T-Mobile, for what it's worth.
GlueSniffined said:
Had the same issue on mine after updating to 12.1 OTA. Selecting my APN didn't work, my connection kept going in and out to my carrier. It was as though the radio would shut off and then turn back on every 15 seconds or so. I reset default APN's, and all is back to normal T-Mobile, for what it's worth.
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Click to collapse
I've tried that no luck.
I fixed this on my phone, I reset to default apns, selected the correct one and then deleted all APNs that weren't mine. According to GSam i'm at 57% in 15h 34m
No luck, tried that.
Should I try to fastboot flash the 44s modem?
I've been using Phil's cwm and I don't think it's flashing right. Because I went back to a May 2015 nightly of cm 12.1 then flashed 44s and nuclearslim 1.3 ,bam everything works perfectly.
coolguy71261 said:
Should I try to fastboot flash the 44s modem?
I've been using Phil's cwm and I don't think it's flashing right. Because I went back to a May 2015 nightly of cm 12.1 then flashed 44s and nuclearslim 1.3 ,bam everything works perfectly.
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You can't use a KitKat modem with a Lollipop ROM or you'll have prox sensor issues.
I have the proximity fix file, should I fastboot flash though.
I think Ill just fastboot flash the 44s, and why isn't Phil's saving my backups. It wiped them when I wiped the user info. Left my other files.
coolguy71261 said:
I think Ill just fastboot flash the 44s, and why isn't Phil's saving my backups. It wiped them when I wiped the user info. Left my other files.
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i flashed the 44s modem and then the proximity fix which worked however this then breaks the auto rotation and the screen does not rotate at all. is there a fix for that?
lilzad said:
i flashed the 44s modem and then the proximity fix which worked however this then breaks the auto rotation and the screen does not rotate at all. is there a fix for that?
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Not sure, I never had that issue. switched to the
XNPH05Q modem after my phone for what ever reason was stuck in a bootloop. I had this problem solved before it bootlooped. Here I am back with the same problem, I even followed the steps that i used to fix it last time. Nope not working this time, Some how Using XenonHd, my signal stength is all over whille sitting in the same place. Starting to think that my sim card may be going downhill. Any ideas?