Problems after pie update :: Signal lost :: help :: Roaming - T-Mobile Samsung Galaxy Note 8 Questions & Answers

Hi, I am using a T-mobile (details below) note 8 that just updated a few days ago, every time I hang up a call I loose signal shortly and comesback alway as well. takes about 5 to 15 seconds for it to have signal again, it is the only problem I get.
Any help will be much appreciated, below is what I have and what I've done
I am using a Verizon sim card
I am always roaming in Mexico (always)
I have the N950U with DSC1 build
I have cleared cache on system through bootloader, cleared phone app cache
I have put manually which roaming network I want to use (the best available)
I have tried automatically select network and global mode as well
I took out my sim card and back in, many phone restarts
as a side note: my coworker has a note 8 n950U1 and he has not had any problems after the update, his service stayed the same, he is alway also roaming.
my N950U when I retart it it boots as if it was a verizon phone, with apps and startup verizon screen, on the other side my coworkers N950U1 does not start with the verizon startup screen and he does not have verizon icons (i think thats called bloatware right?)
Thanks and sorry if either I am missing or giving much information.

Update:
I did a full reset, it got fixed for about 1 week, again same trouble.
I use a bluetooth headset tried not using it but it still get the same problem

Related

[Q] LTE Galaxy Nexus forcing GSM/WCDMA

Hi all,
This is my first thread here, but I'm not too noobish when it comes to technology. However, if I'm breaking a forum rule or you need more information, please ask.
I have a GNex with Verizon running 4.0.2. I am rooted and have flashed Clockwork Recovery and in the past flashed MIUI; however, it was a little sluggish for me and at the time I didn't have time to fiddle with it so I restored to a Nandroid backup I had created before flashing. As a side note, I haven't been able to get CWM Recovery to work correctly in the past as it will flash correctly (using the Galaxy Nexus toolkit) and I can boot into it directly after flashing, but after booting into Android, restarting, and attempting to boot into recovery it will give me the android/red triangle error. Not sure what that means, but if I need to use it I can usually boot into it without flashing.
Anyway, on to the meat of the problem here. Earlier today I took my phone off of WiFi to use LTE here (Bay Area, CA) but my phone wouldn't connect to the cellular network. Nothing I haven't seen before; I cycled airplane mode and the "data enabled" option and restarted to no avail. Upon rebooting, I got the "Unfortunately, the process com.android.phone has stopped" twice in a row. At this point, no bars displayed at all. Confused, I looked into Mobile Network Settings and under Network Mode it oddly stated that the preferred network mode was set to WCDMA preferred (specifically, GSM/WCDMA preferred). I can try to set it back to LTE/CDMA but it will only reset it back to GSM/WCDMA.
WiFi works, but as soon as I turn it off it will revert to the greyed out bars inside a triangle. As I type this now, there are currently two bars, but they are grey and of no use. I just tried to call someone, and the call went through, but the double "com.android.phone has stopped" dialogue box came up again
I suppose I am willing to do a stock reset, but I'd rather not due to my large amount of music, video, etc on my phone; plus, it's just no fun to throw in the towel and do a reset
Any and all help is welcome, and like I said if you need more information please ask. I googled this issue and no similar threads popped up on any forums, so I hope that if/when my issue is resolved this will serve as a guide to others who experience this issue. That is, assuming they do; my tech issues are all too often unique to my own horrendously bad luck.
gracias, dudes.
Bump since it was buried.
Now fixed with a wipe/reset. Initially I wiped/reset and restored all apps/data (including system) with Titanium Backup, but after the system data had been restored and I rebooted I encountered the same exact problem. I wiped/reset again and just let the Market redownload all my apps and the problem has since stayed away.
Any ideas on what exactly could have caused the issue, though? I'm curious.

Data stopped working, but I still see 3G/4G in notification bar

I did a search, but wasn't able to find any relevant threads. So if I missed something, please point me in the right direction.
My problem is that earlier this morning, my data ceased working. The notification bar shows 3G (sometimes even 4G), but I cannot get anything to load or refresh. The data arrows are indicating that while data can go "up", it isn't coming "down". I'm not sure what happened, as I wasn't doing anything out of the ordinary when this happened. I've got a decent signal in terms of bars as well, at least 2 or 3. Even given that, the data connection does appear to drop and then come back a few seconds later, but the behavior is the same: no internet.
I am S-OFF, global radios I believe, and when this first happened I was running the "le n00b" CM9 kang (which I've been running since yesterday morning with only intermittent data drops and no other problems). After a while of no data, resetting the radios via airplane mode toggle, a reboot, full shut down and restart, I restored a nandroid of the sense-based Vigor360 ROM, which had never had any data issues, but the same behavior is happening. Notification bar shows a decent signal, 3G/4G, but no data. After that, I powered down and pulled the battery, sdcard & sim card, left them out for a minute, put it all back together, powered back up, but still no data.
tl;dr: notification bar shows 3G/4G and decent signal, but I'm getting absolutely no data.
I've confirmed with a co-worker who's also on Verizon that their data is working, so it doesn't seem to be tower/network related. Anyone seen anything like this before? If so, what's the prognosis?
UPDATE: I was in Vigor360 with no data, and kept digging around XDA's wonderful search function, and found someone with a similar issue (though nothing about 3G/4G being in the notification bar) and they updated their PRL via *228. I did that, data seemed to come back. So I took a chance and restored my "le n00b" CM9 nandroid, and so far I've got data! Editing this post using that connection right now! I'll update further if I drop data again or discover any new relevant info.
the *228 wont do anything for us now that we have 4g and the sim card updates the prl when there is a new one. that was the old way to force a prl on 3g only so i think that was only a coincidence that data came back.
you might have a bad sim card. what you can do to test is put it in wifi mode and surf the web. if that works then its not the radio.
thing you can try to do:
remove the sim card and boot the phone. wait for it to fully boot and it say there is no sim detected. turn of the phone and put your card back in. then boot into recovery and wipe dalvik cache and boot the phone like normal.
synisterwolf said:
the *228 wont do anything for us now that we have 4g and the sim card updates the prl when there is a new one. that was the old way to force a prl on 3g only so i think that was only a coincidence that data came back.
Click to expand...
Click to collapse
Perhaps, but that was the line of demarcation between data not working to it working. Plus, the data speed seemed even faster than normal for the respective signal strength. Either way, I'm just happy it's working.
you might have a bad sim card. what you can do to test is put it in wifi mode and surf the web. if that works then its not the radio.
thing you can try to do:
remove the sim card and boot the phone. wait for it to fully boot and it say there is no sim detected. turn of the phone and put your card back in. then boot into recovery and wipe dalvik cache and boot the phone like normal.
Click to expand...
Click to collapse
Thanks - I'll keep this in mind if it happens again. I was able to use the internet normally on wifi.
check your APN
You probably know -
You can always RUU back to stock to have a working phone

LTE Data Flashing on/off

Just encountered a little problem today. From the beginning: My Note 3 was rooted/TWRP'd running Vision X 3.0. Gave my wife my new G3 and took the Note 3 back. When I wiped her data in TWRP and restored a backup (same ROM) the 4GLTE icon started flashing on and off. I wiped complete again, installed a new ROM and did the same. Then I Odin'd to the new update. Same issue. I did encounter an issue with switching the phones earlier in the day. I had to get Sprint to do it via chat due to the Note 3 not being deactivated/reactivated correctly when I tried through the site. So I am guessing it could be a bad SIM card or they muffed something during activation. It will at times stop flashing and give me full LTE, but if I reboot or shut the phone off/back on it starts flashing again and the phone gets warm. It will sometimes stop/start if I mess with Connections Optimizer too, either checking or unchecking. Appears to be trying to connect to LTE but something is preventing it from locking on. I would appreciate it if anyone that has run into this before can give me some ideas. I do have a service center in town, and will go in the AM if I cannot find a solution anywhere else. I have never encountered this before.
Also in settings for data, Mobile State flashed between Connected/Disconnected and Mobile Network Type flashes between LTE/Unknown along with the LTE icon in status bar.
Tried killing data and all that. Airplane mode etc.. Sprint service center says it may happen when updating and will calm down in a couple of days..I don't think it was the update since I didn't update until after it started.
Also failed to mention when I switch to CDMA only in Data settings it will stay on 3G and doesn't flash. Has to be an LTE issue. And it is not the towers in the area because the G3 is fine.
Since it's broke anyway, going to Odin NC5 and see what happens. Tried freezing Connections Optimizer and flashing a new Kernel but didn't work either.
EDIT: Nope. That didn't work either. Ugh
Apparently it was a Sprint issue. Had to let it ride for a day or so and now back to normal. LTE is good again. Was an issue on their end when something went wrong during the phone swap.
Had this same problem with my Galaxy Grand Prime and rebooted in safe mode and it stopped. Safe mode disables all 3rd party apps. It is a 3rd party app causing the problem. I had to turn phone off, turn back on and hold volume down button after seeing Samsung logo popup, then wait for the safe mode to appear in lower left corner and release the button. Flashing stopped after that. Turned safe mode off and its still good so far. Hope this helps someone!!

Network drops when making or receiving calls

Hey guys. So I've been trying to figure this out for several weeks with no luck and I was hoping you could help me. I have a Verizon LG G3 on AT&T on 10b. I can connect to 4G LTE and Edge just fine. However, when I try to make a call or receive a call on LTE, the network vanishes instantly. I'm talking from 3-5 bars to no service in within 5 seconds of calling my phone or calling from it. I've tried flashing different modems and the problem still persists. I already tried flashing the stock (what I'm on now), factory resetting, clearing the cache, etc. and have not been able to fix it. Today I called AT&T tech support and after they re-registered my phone I was able to make one phone call before the problem reappeared. When I made the call, my LTE dropped but I stayed connected through 2G/3G/Edge not sure which one.
The only other time I've had it working properly is when I had Cyanogenmod installed. However, that led to another issue. With Cyanogenmod, my phone would crash within a few minutes of booting. Most of the time I couldn't even make it through the setup. To be more specific about the crash, my screen would freeze and become unresponsive for a dew seconds and would then turn off completely. The green LED would turn on and stay on. Every time this happened I would have to pull my battery. The only way to prevent the freezing was to turn on airplane mode. If I turned off data or had the phone SIM-less it would still freeze airplane mode was the only solution.
If anyone can help me with either of these issues I would be greatly appreciative. If you need any more information or want me to post logs just let me know and I'll happily do so.
Here's a quick recap incase you don't want to read through the walls of text.
VS985 10b on AT&T
EDGE works fine
On 4G LTE network disconnects when making or recieving call
Cyanogenmod fixes network issues but freezes when not in airplane mode
Z3R01337 said:
Hey guys. So I've been trying to figure this out for several weeks with no luck and I was hoping you could help me. I have a Verizon LG G3 on AT&T on 10b. I can connect to 4G LTE and Edge just fine. However, when I try to make a call or receive a call on LTE, the network vanishes instantly. I'm talking from 3-5 bars to no service in within 5 seconds of calling my phone or calling from it. I've tried flashing different modems and the problem still persists. I already tried flashing the stock (what I'm on now), factory resetting, clearing the cache, etc. and have not been able to fix it. Today I called AT&T tech support and after they re-registered my phone I was able to make one phone call before the problem reappeared. When I made the call, my LTE dropped but I stayed connected through 2G/3G/Edge not sure which one.
The only other time I've had it working properly is when I had Cyanogenmod installed. However, that led to another issue. With Cyanogenmod, my phone would crash within a few minutes of booting. Most of the time I couldn't even make it through the setup. To be more specific about the crash, my screen would freeze and become unresponsive for a dew seconds and would then turn off completely. The green LED would turn on and stay on. Every time this happened I would have to pull my battery. The only way to prevent the freezing was to turn on airplane mode. If I turned off data or had the phone SIM-less it would still freeze airplane mode was the only solution.
If anyone can help me with either of these issues I would be greatly appreciative. If you need any more information or want me to post logs just let me know and I'll happily do so.
Here's a quick recap incase you don't want to read through the walls of text.
VS985 10b on AT&T
EDGE works fine
On 4G LTE network disconnects when making or recieving call
Cyanogenmod fixes network issues but freezes when not in airplane mode
Click to expand...
Click to collapse
I think you are talking about making calls on Voice over LTE. I am not surprised Verizon rom does not quite support it. Maybe you can try this swap boot.img hack to install AT&T rom and see if it solves your problem?
http://forum.xda-developers.com/showpost.php?p=58740774&postcount=43
Thanks for replying. That's my main theory too. However, according to my research, the VS985 didn't get VoLTE until the 12b update. I'll definitely try an AT&T ROM when I get the chance at the very least I'll probably learn something from it. Any chance there's an option to make LTE data only on this phone?

Help with Xfinity Note 8, FRP, Carrier Switch

I have a Galaxy Note 8 from Xfinity Mobile that I'm trying to flash T-mobile firmware onto. Here are the issues:
Once upon a time I was using this phone as a home remote with no sim in it on airplane mode and made a random gmail account to set it up. It has been sitting in a drawer dead for 6 months, so without even thinking, the first thing I did was a factory data wipe only to be greeted by the FRP. I have no idea what the email was that I used to set up this phone (i remember making one that was along the lines of '[email protected]' but can't remember it exactly) and apparently did not use my real email or phone number as a backup. So the first issue is, I can't even get into the phone to see the current boot loader, or firmware version on it. Nor can I get far enough to even use a carrier unlock code (which i assume I'll need, but won't be a problem getting from xfinity).
Is there any way possible that given the current situation I can switch this device to tmobile?
never mind, by some divine miracle (and after exhausting every other possible solution i could think of) i remembered the email used

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