Lost network connection? - T-Mobile Samsung Galaxy Note II

Starting in the last couple of days, my Note 2 lost network connection/cell signal from time to time (no voice no data).
I had to reboot it several time for it to come back (and sometimes I had to remove and reinstall
the sim card) and then it may work a few hours and the connection
was lost again (showing a circle with a cross bar). This is in the same location that has been working
fine for the last couple of months, but it happened everywhere.
It's rooted, running stock JB 4.1.2.
Is there anything else I can do?
thank you.

testrider said:
Starting in the last couple of days, my Note 2 lost network connection/cell signal from time to time (no voice no data).
I had to reboot it several time for it to come back (and sometimes I had to remove and reinstall
the sim card) and then it may work a few hours and the connection
was lost again (showing a circle with a cross bar). This is in the same location that has been working
fine for the last couple of months, but it happened everywhere.
It's rooted, running stock JB 4.1.2.
Is there anything else I can do?
thank you.
Click to expand...
Click to collapse
Did you drop the phone recently? If a connection for the antenna is loose you could have problems like that.
You might try getting into recovery and wiping cache and dalvik (I know you can wipe cache in stock recovery, can't remember about dalvik). This is not a factory reset. Once those are wiped, boot the phone and let it sit untouched for 10 min. Then reboot and go about your business.
That can help any number of issues. Don't know for certain if it will help yours. You might call tmobile and ask them (after you try the other stuff). You may just have to warranty it out. Dunno.
Hastily spouted for your befuddlement

Thanks. No, nothing changed in the last few days. No new apps, no drop.
It was fine since last night until this morning. If it happens again
I will get a new microsim card and have T-Mobile transfer my current sim
to it to see if it's a simcard problem.

Related

[Q] 3g connection will not stay up

So for the past 2 weeks I am having issues that basically render my phone unusable for 99% of the reasons I bought it. Posted a thread before but I think it got lost when the forums were having some instability around that time...
My 3g connection will NOT stay up. I did nothing to provoke this. No system changes. The sequence of events:
-Went out of the country with my phone on airplane mode the whole time
-Got back, a day or two later had an incorrect timestamp on my incoming SMS (they were showing up +3 hours)
-Called customer service, she activated a tester phone and confirmed that it was a system-side issue on the incoming SMS (somehow they were getting a timestamp from the system where my number is located, in Eastern time, while I am actually located in Pacific nowadays).
-Put in a trouble ticket after 2 hours trying to solve the SMS issue over the phone.
-Next day, my 3g connection begins dropping CONSTANTLY. As it stands, it won't stay connected more than 30 seconds. It will cycle to 1x sometimes, and then drop to a basic-service-only.
-Tried reinstalling my ROM several times to no effect.
-Started experiencing some very strange noises in SOME calls, such as it sounding like a chainsaw when the other person is talking. Happens very sporadically.
-Just today I found some instructions here for correcting my NAM settings, which were actually messed up as it turns out, but didn't fix anything.
At this point I actually have the phone unrooted and back to factory default everything, with no change. I've got a warranty replacement phone coming in shortly, but I'd still rather keep this one if I'm able to.
Is there anything I haven't tried that might be the case on my end? Has anyone seen this problem before? Has my phone antenna simply gone belly-up, or is this something that might still be fixed at some deep system-setting level, or with further calls to tech support?
So... I guess that's a no?
Gornul said:
So... I guess that's a no?
Click to expand...
Click to collapse
Had the same problem with my phone before I rooted my phone and starting to apply ROM's. I havent had a problem since. But when I had that problem, I would just keep turning on and off the 3g and it would stay for a while. It was just a quick fix but it worked. Off subject how did you unroot your phone and put it back top stock?
My phone just started doing this this yesterday. Whenever I reboot it, it'll come up, switch to 1x mode. After a while it'll try to switch to 3g mode, fail, switch to no service, and then either go to just basic voice with no data or back into 1x mode. I've tried updating the radio, switching roms, dialing *228, nothing seems to help.
Jager, instructions on a full reset are right here under section 6. I'm not sure why it's struck out. Definitely suggest poking around more first.
New phone's in and still having major connectivity issues. The SMS timestamp remains as it was, and I can't get (steadily) more than like 35kbps. I'll occasionally bump to 500kbps for a quick spurt, and then my connection will drop entirely and struggle to get back up to 35kbps. My wife's Incredible works perfectly fine in the exact same locations, too, so this is something that absolutely has to be on Verizon's side, specific to my line.
Me too
My phone has also been experiencing the loss of 3G service as well. I checked my wife's Moto Droid 1 and it was also having difficulty connecting as well. I called Verizon and they were absolutely no help whatsoever. I am either getting nothing or 1X in places where I have always had 3G. This is very frustrating. I have flashed 3 different ROMs (all of which have worked fine in the past), but the result always seems to be the same. Anyone else out there with this issue?
khukman said:
My phone has also been experiencing the loss of 3G service as well. I checked my wife's Moto Droid 1 and it was also having difficulty connecting as well. I called Verizon and they were absolutely no help whatsoever. I am either getting nothing or 1X in places where I have always had 3G. This is very frustrating. I have flashed 3 different ROMs (all of which have worked fine in the past), but the result always seems to be the same. Anyone else out there with this issue?
Click to expand...
Click to collapse
Someone help! Same issue! I can no longer get data....PERIOD. I have to stay connected to wifi, or I don't get my emails, internet, etc.
Need to fix this!
3G connection issues
I just got off the phone with Verizon Tech support. They are CONVINCED that it is an issue with my phone (and my wife's). Gee, how can 2 different phones, from different manufacturers have the SAME issue at the SAME time? Hmm, doesn't sound very promising to me.
They are sending out a replacement for my wife's Moto Droid to see if it is a phone issue (she has been having other issues with it anyway...). If hers improves, I may send mine back, but I don't want to have to unroot, etc. Plus I like the Super-Amoled screen . When did trouble-shooting turn to "replace the hardware first" ???
Regards!
This happened to me recently as well and was fixed with a factory reset.
I am rooted with S-off, so a normal factory reset via Menu->Settings->SD & Phone Storage-> Factory Data Reset didn't go well for me. Not sure of the exact reason, but I just followed the instructions in this post to restore: http://forum.xda-developers.com/showthread.php?t=786436
Programming your phone by dialing *228 is necessary afterwards as well, as khukman states below. Thanks for pointing that out.
After I completed this, I redid root, restored my nandroid backup and didn't lose a thing, plus my 3G is working again!
*A fair warning: Doing this formats the internal storage (emmc). I'd recommend backing up any photos, music, etc that you have stored on emmc before doing this!
Sent from my Droid Incredible
So I tried the above suggestion about going back to completely stock 2.2 and I have the same results. On one hand, I am now back to S-ON and stock Froyo, so if I want to send it back to Verizon, they are none the wiser that I was rooted, but on the other hand I STILL HAVE CRAPPY 3G SERVICE!!! Man, I feel like I'm on AT&T or something LOL! I'll keep an eye on it for the rest of the day and see how it does and report back.
Back in 3G!!!!!
After getting back to stock Froyo, as described in the previous post, I was still unable to get a good 3G lock. I read in another thread where someone did a 'Factory Data Reset' and it took care of it. When you do this, you have to dial #228 and let it program your phone as it did the first time when you got it. Once I did this, I had (and still have) a solid lock on 3G like I used to. I think that it was one of the Sprint ROMs that screwed this up in the first place (the OP states that you have to backup your PRLs, etc. before installing, then re-install them afterwards). I can't remember if I did this or not, so it may be my fault after all, but regardless, I am thrilled that once again I have a connected smartphone thanks to the resources contained on XDA!
Regards!
I myself am now rocking a refurb that has no trouble at all... A complete revert to stock did absolutely nothing to resolve my trouble.
Though I didn't try doing a factory reset AFTER reinstalling the stock ROM. Hmm. Maybe there was something in the cache still. I suppose in my case I'll never really know, but I'm glad you guys were able to resolve the situation with your original hardware.
Gornul said:
I myself am now rocking a refurb that has no trouble at all... A complete revert to stock did absolutely nothing to resolve my trouble.
Though I didn't try doing a factory reset AFTER reinstalling the stock ROM. Hmm. Maybe there was something in the cache still. I suppose in my case I'll never really know, but I'm glad you guys were able to resolve the situation with your original hardware.
Click to expand...
Click to collapse
Did you follow the steps in the thread I posted above? Doing that should completely format and re-image your phone. Much more than just installing a stock ROM. I myself tried so many different variations of ROMs, radios, etc and nothing did the trick until I followed that thread.
Sent from my Droid Incredible

[Q] Data Connetion

Hello all!
I am having constant data issues all day where I go to use an app that needs it, it says that no data connection can be found or something. I turn the radio off, turn it back on and then it works. It's a good work-around but it does get very annoying. I've tried multiple 4.4.2 roms but no avail. I tried a different kernel but I couldn't even use the phone. Any ideas?
Same for me; I'm rooted now but it happened before root and after the JB ota updates. Annoying but otherwise I love this phone
I think this has been a known issue since ICS (I could be wrong though).
If anyone knows a fix that would be cool (I have GSM google play gnex)
My issues started late last night, lost data connection and it didn't come back. On my way home, it connected then lost again at home. Went to Verizon today and they couldn't figure it out, said possibly the radio is taking a crap.
On my way to work, it connects then gone. I tried flashing the radio, pulled battery, booted without sim, formatted cache and delvic. I have tried everything and think it's the end of the line for it
I've been rooted since the day I got it and had the issue once a while back but it straightened out and has been great since.
Certain CyanogenMod ROMs have trouble with the Network Modes sticking. Which carrier are you using? For my carrier, I had to have the correct APNs set to get 4G and MMS working. It might be that this is the problem in most cases, especially when the phone switches between 4G and 3G in spotty areas.

Having data connection issues. Any help would be great

Hey guys. Running tasks aokp 4.4 currently but yesterday tried several other roms (both aosp and touch wiz) and this problem manifested itself on every rom i have tried (clean full wipe installs).
When on data, regardless of where I am and what I'm doing my connection will continually switch from 4g to h+ to 3g to edge. Does this totally randomly with no pattern. Then the signal will totally drop and I will be unable to do anything (make a call even) . Usually if I wait 15 seconds the the signal will come back, but only for a few minutes.
I have called att and they have done a "hard reset" of my data on their end but it didn't fix anything. Does anyone have any ideas? Maybe I should try flashing a different modem (never done this before).
This problem started around ten days ago. Nothing started it (phone wasn't dropped or anything) and I double checked to make sure the Sim card is properly seated... Which it is.
Any help would be greatly appreciated.
Sent from my SGH-I747 using XDA Free mobile app

[Q] Signal indicator issue on unlocked and rooted AT&T S3

I have a very weird problem on my S3 and I have looked everywhere and I can't figure out what's wrong.
I have a stock unrooted S3 on 4.4.2. Recently I took the phone overseas and had it unlocked, I don't know quite how the person unlocked it, but when I got it back it was having a lot of problems. All my Data was wiped, but still unrooted but showing many errors. I was having an error every time I opened my contacts saying android.process.acore has stopped. I was also having trouble getting signal with a local sim card, at the time I thought it was some setting I didn't know about or that it was the network that was messed up. Then when I got home I continued to have with my at&t network, always showing no signal and no data, when I did have signal it would cut out in a few min and when I got Data it was only 2g.
So what I did was install a stock rooted rom that I had been using before, this rom took care of a lot of the errors but wifi doesn't work on it, so I had to install a kernel which was verson 3.4.0-g2d4cae8 ktoonsez, this took care of the wifi problem.
Then I looked around a lot for reasons that my network wasn't working. One potential problem was APN, I checked that and mine was correct. There was also a problem listed with IMEI and that was fine on my phone too. Then I finally found that sometimes you can reinstal NV items and that can fix your network issues. So I found a site that had NV items to fix LTE and flashed that on my phone through odin. That actually took care of my network issue! I can get network now and get LTE, luckily saving my phone from being completely useless.
Now I have a completely diff issue and I don't know if I'm missing something similar to that to fix it.
What happens is that I constantly only have 1 signal bar, then when I start making a call or send a text I all of a sudden have 4 or 5 bars. So I have signal, but somehow its not registering properly. I would be okay with this considering my phone is at least letting me make calls even though it takes a bit longer to connect, but the problem is that it's been heating up a lot and the battery has been dying 3 times a day when it used to last an entire day. Looking up this problem I found that this problem is common when you have no signal. Also when I think when I am closer to a tower then my phone has 3 bars most of the time and the battery lasts longer, aka when I was in downtown Houston I only had to charge my phone once during the day as opposed to 2 times.
Anyone have any Idea how I might be able to fix this problem. My mom had her phone unlocked the same way but she is still on official stock rom with root, and is having the same problem, so I'm pretty sure it was the unlocking process and something similar to the NV items. Maybe I needed to install a whole NV items file instead of just the LTE segment? Sorry this was so long, and maybe rambling. Let me know if you guys need any more information.

GPS turns off when 3G connection enabled

Hello.
this problem has been going on for a few months but I never really tried to fix it until a couple of days ago.
This is exactly what happens: I start my phone and try to get a GPS fix with any apps, as long as I don't have a 3G connection, it works flawlessly.
the moment I enable the 3G connection, the GPS fix is lost and never works again until I reboot. wifi, 2g, airplane mode, they all give me a perfect GPS fix. as soon as the little "H+" shows on the screen, the GPS dies until the next reboot.
the weirdest thing about it is that it happens with every single room I try. so far I've tried CM 12, 11 and 10. exact same problem
Tried PA4.5 and 4.6, again, the exact same thing.
I even tried going back to stock, first to 4.3, nothing.
right now I'm on stock 4.0.4 which is the oldest image I could find, flashed everything back to stock (except boot-loader and recovery)
I've wiped everything between each room flash, of course.
I'm running out of ideas here. any help would be very appreciated
quick update.
I decided to try a different sim card from another carrier, and guess what? GPS working perfectly
but sadly, I need to use my own sim card. after 3 days of flashing roms, I feel stupid for not trying this at first. anyway, I didn't know your sim card could enable or disable your GPS?
does anybody know anything about it?

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