Weak data signal, need new SIM card? - Verizon Samsung Galaxy S III

Lately I've been getting horrible mobile data connection. If I send a MMS I can get 3g and even rarely LTE. The problem however is when I am not sending a mms it is impossible for me to even get a 1x signal. Would getting a new SIM card from Verizon help with this?
I've already tried flashing different radios and roms, I really don't want to factory reset unless I absolutely have to... So any other ideas would help too.
~Thanks

I flashed a rom that seemed to have bad radio signal and every rom after that seemed bad also
i took note of my PRL number
and so i odin to stock and it seems my PRL updated from verizon and signal issues went away

Try flashing an updated modem
Sent from my SCH-I535 using xda app-developers app

Related

[Q] Lost 3G, all hope gone?

Alright, the short of it, I flashed the wrong radio. I flashed an AT&T radio by mistake and I own a T-Mobile Nexus S. So, afterwards I realized that I no longer had 3G because of it most likely.
In a bid to try and fix it, I have tried everything I can think of. I have disabled and re-enabled data, re-flashed KB3, APN switching, check in menu with all types of settings, re-flashed customs ROMs, tried to revert to backups, and at this point I'm up to returning to stock and system updating to GRJ22. Still with no 3G data.
Is there anything I'm missing? Does anybody have any suggestions? The last option I can think of would be to get a new SIM card since my SIM is from before T-Mobile had 3G and I've heard they can have problems with 3G. I should also note that my signal has been pretty weak, not making it better than -100 db. at best most of the time.

No Signal on G2x

I've had the G2x since it first came out and have always had issues with the signal dropping abruptly. However, since Thrusday, I have lost all signal to the tower and am unable to get it back. I was running EagleBlood's ICS ROM but have since done a full factory reset back to stock and completed an update via the LG Update Tool (I wasn't successful with updating the baseband any other way). Everything appears to be back to factory settings, but I'm not receiving any cell signal still.
Any ideas?
My baseband currently reads: M6600A-SCAUTNZ-2.0.9720T 1 [MAR 2012 10:00:00] MP:TRULGE_08.09.02R_MDM
When I choose Status under the About Phone menu I get the following details:
Network: Unknown
Signal Strength: -93dBm 10 asu (fluxuating slightly)
Mobile Network: GPRS
Service State: Out of service
I am also unable to enable Wifi calling. Basically the only calls/texts I can make are via Google voice on a wireless network.
I'm on the stock 2.3.4 rom currently.
Try a factory data reset and a battery pull
Sent from my LG-P999 using xda premium
Have you checked apn settings?
Sent from my LG-P999
Try a factory data reset and a battery pull.
Click to expand...
Click to collapse
I have done both of these already.
Have you checked apn settings?
Click to expand...
Click to collapse
I'm not sure what I should be checking. Is there a good article/thread on this?
I too upgraded to the new bb, and have been getting random signal drops. IDK if it's Tmo, working on their equipment, or the new base band. I figure I'll give it a week or so, as it hasn't yet interfered with my daily usage (mine drops, then comes back).
My suggestion to you, since your loss seems to be a constant, is to try using kwes 2.3.4. I had some other minor issues w/the LG release, that I don't seem to have with kwes. It's a bit more stable.
http://forum.xda-developers.com/showthread.php?t=1602798
Could just be that you had a bad install. It happens. Give kwes ROM a shot. Maybe that'll take care of it. Good luck!
Thanks for the suggestion. I'll go ahead and give that a shot, but I think in actuality something internally might be messed up.
Have you tried a diffrent sim card?
http://forum.xda-developers.com/showthread.php?t=1661342
Random Signal Drops?
I have the some freaking problem, I made the thread above and I've tried a number of fixes and no dice.. Tonight I'm going to try to get a new sim. I've tried a complete reset, Rooting and removing all bloatware, and flashing a custom rom. No dice. Sometimes I drop from 4g to 2g, sometimes I drop all signal. Wifi never drops but I lose all connectivity to mobile data and signal.
Sent from my LG-P999 using XDA
No signal except wifi
Did any of you ever fix this issue? The same exact thing just started happening to me. I had to start using a back up phone to make calls. The only thing that works in wifi and I've verified the APN settings. I even took the sim card and put it another phone, which worked fine. Let me know if you find anything.
r3sidual said:
Did any of you ever fix this issue? The same exact thing just started happening to me. I had to start using a back up phone to make calls. The only thing that works in wifi and I've verified the APN settings. I even took the sim card and put it another phone, which worked fine. Let me know if you find anything.
Click to expand...
Click to collapse
If you want to eliminate the phone as being the issue, has anyone suggested you roll-back to the previous Baseband and try using one of the CM7 ROM's that are out there?
Logic being, if the rollback gives you the same issues you previously had, then it's not a function of the baseband causing the issue.
So I have the G2x with simple mobile and just installed the latest eaglesblood and obviously I cant make any calls and texting works with wifi so is this fixed or should i go back to 2.3.4
KabeDerlin said:
I've had the G2x since it first came out and have always had issues with the signal dropping abruptly. However, since Thrusday, I have lost all signal to the tower and am unable to get it back. I was running EagleBlood's ICS ROM but have since done a full factory reset back to stock and completed an update via the LG Update Tool (I wasn't successful with updating the baseband any other way). Everything appears to be back to factory settings, but I'm not receiving any cell signal still.
Any ideas?
My baseband currently reads: M6600A-SCAUTNZ-2.0.9720T 1 [MAR 2012 10:00:00] MP:TRULGE_08.09.02R_MDM
When I choose Status under the About Phone menu I get the following details:
Network: Unknown
Signal Strength: -93dBm 10 asu (fluxuating slightly)
Mobile Network: GPRS
Service State: Out of service
I am also unable to enable Wifi calling. Basically the only calls/texts I can make are via Google voice on a wireless network.
I'm on the stock 2.3.4 rom currently.
Click to expand...
Click to collapse
If your having the same problem I use to download the app “GetRIL" from the play store and check to see if your base and and RIL match if not download the right RIL within the app hope this helps! Just saying when I changed my RIL I did lose signals once in a while for a couple days I think but now I can't even remember the last time I have
Sent from my LG-P999 using xda app-developers app
I moved from Baltimore to Denver a couple months ago. When I got here my signal was horrible. Data would hardly work, GPS constantly giving out, extremely frustrating. I went to a Tmo store and they gave me a new SIM. Works way better now.
How do I open a SIM network lock? LG-P999

Constantly losing my data connection

A Little Background. When I first got my device I used the kexec method to flash a unofficial CM mod and lost my IMEI. I manually injected it back into my phone and flashed back to stock.
Now, I constantly lose my data connection for 15-45 seconds all the time. It happens intermentantly and is driving me nuts. Is there any way to fix this?
Thanks in advance.
Try flashing another modem, for me when I had the G1 modem it dropped data quite a bit. But try all the ones you're not using because some modems seem to work better for other people.
Sent from my Galaxy S III
Change apn from ehprd to lte and it will change you're signal from enhanced 3g to evdo rev a witch Is standard 3g....
I don't have lte near me and has tremendously helped my 3g signal to stay at the signal level my iPhone 4s is being a pure 3g phone....
Sent from my SCH-I535 using Tapatalk 2
Thanks for the feedback. I will search the forums for direction on how to do these things.
So when I first got my phone the APN was set to EHRPD, and I just checked (1 week later) and it's now set to LTE and I never touched it and I am running full virgin stock out of the box... is this normal? Does it auto-switch?
I hear the modem might be an issue for a little while...hopefully devs get it fixed soon.
So are people having better luck on the F2 modem or the G1?
After reading the forums in more depth I guess lots of people are having this problem.

Reception issue

Looking for some advice on Reception/Low signal loss
To clarify i am near a tower.
I used to have full bars no less then 3
I tried flashing different modem--no go
I tried flashing new rom---no go
I reverted to stock GB--no go
Symptoms all started after I was trying to switch over to XperiaSlim Rom. Dont think that rom had anything to do with it but I was on Audiophile before that.
My signal strength is usually over -100db now. Any friendly advice would be appreciated. I exhausted all i know at this point and Google doesn't exactly give anything that could be used for us like changing a radio.
Go to T-Mo and get a new SIM card. With the merger, the towers currently known to your old SIM card might be somewhat odd.
Thanks I'll head there today to get one but weird and merger? Im not in a MetroPCS area....but heres hoping its a Sim card issue
Edit: All of the sudden on GB ROM the reception is now back in mid -80's DB to high 90's and now receiving proper reception. I dont know how it got fixed but I'm sure it was Tmo that was borked. I'm on XperiaSlim with LB6 modem rockin JB ^_^
Mod you can delete this thread
Sent from my SGH-T959V using xda app-developers app

[Q] OTA Causing Data Issues

I was stock unrooted and i got the ota. now my data handoffs are weird. in my house were i get 3 bars of 4g lte (-100ish dbm) i now have 2 bars of 3g and it switches between 3g and 4g. it didn't do this before. i then odined back and installed the ota again and same issue. Any suggestions?
New radios won't be the same for everyone. The new one may hold 4g for somebody else, but knock you down to 3g all the time. It all depends on your location. I say give it a few days to see how it is, then go back to the olds radios (MB1).
Sent from my SCH-I535 using Tapatalk 4 Beta
Interestingly enough, every time I receive an OTA, I factory reset for a fresh experience ( placebo or not, it feels like dirty flashing and never seems to run as quick or as smooth). However, every time I did so on MD3, and I tried 3 times, after the reset my data would barely work. Had a signal, showed 4G, just never loaded or indicated data transfer most of the time I tried to do anything.
I wanted the update obviously, so I ended up Odin-ing back and flashing the recovery-based version. Still using LK3 and its faster and more responsive than MB1 ever has been for me. Just food for thought.
Edit: LK3 modem vs MB1 modem
Sent from my SCH-I535 using xda app-developers app

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