Database Develop

Intermittent Phone/Data Connection, stock or custom, help, logcat?

Figured I'd ask this one to the community to see WTF is going on with my phone. Just curious if anyone has witnessed or has any clue to what my phone's issue is. This is a bit long, but needed to show this isn't just some setting issue:
Issue:
- Intermittently connects to Network, when working get both phone and data connections
- Connection lasts anywhere from 1-15 min.
- When data and phone connections are lost, they still appear normal/active in status bar, when view "status" in settings, shows my network connected, Rogers, not roaming, Connected to network state, Service State "In Service, blah blah....
- Sometimes, status bar icons show normal, but status in settings actually shows disconnected or connecting, this happens less often then the case above
One weird Incident:
- Was golfing one day, using GPS Golf app, all of a sudden phone shutoff (never happened before). After a panicky 20min. of pulling the battery, and watching the screen, nothing would happen. Finally, it powered on, and booted as normal. My connection issue seemed to come right after this incident occurred.
Attempts to fix software:
- Full wipe on custom ROM - no change
- flash radio(s) - no change
- flash stock ROM - no change (then root, flash custom ROM...no change)
- WTF????
Sent back to HTC for repairs
- My final option was to send my phone back to HTC. 1 week later, I get my phone back, same phone, flashed by HTC, and locked bootloader. Powered on, made a couple of quick calls, 10min later, issue was back. called HTC back, long story short, told I have to send it back again, and there was no problem found on the service report.
This is where I am at right now, does anyone have any ideas, similar experience? I am going to hold off for a couple of days before sending it off again, i am an electronics technologist myself, and find it hard to believe this could be a h/w issue, but I have no more software/partitions to flash that I haven't tried.
If there is anyone knowledgeable enough reading this, I have the logcat files, from what I can understand of it, when the my calls fail, "CallNotifier: DISCONNECT"..."CallNotifier" Cause: ERROR_UNSPECIFIED". There might be more in the log file that I don't understand.

[Q] Failure to start external modem?

Hi everyone,
I have encountered a really annoying issue with my HTC One. It is a completely new replacement unit, and ever since I started using it I've had problems with the reception. In the beginning it only lost reception for a short while, and then regained it. Now however, the loss of reception is almost always followed by an immediate reboot, and after this reboot the phone often will not allow me to enter any pin at all. It will just show a "no reception" symbol in the status bar and subsequently reboot again after a minute or so. This boot loop continues until the phone actually allows me to input the pin again, after this the phone will work fine for awhile until this looping business starts anew.
I've actually tried a whole lot of different roms and radio versions in order to try to solve this issue, but to no avail. I've also used an RUU to reset my phones firmware from the very beginning, but the problem still remains. I've also tried to swap sim cards, no luck with that either.
I've tried to check the logs after these reboots, and the only things that seem to have anything to do with this are the lines: "failure to start external modem" and "MDM common shutdown".
Am I out of luck here? Is there anything I can do in order to try to fix this myself?
I'm afraid that if I hand it in for repairs the shop won't actually experience anything wrong with it, since this happens so randomly, and just send it back to me with a service fee.
Help is much appreciated!

Anyone? I've made a logcat log of the error tagged-messages that occurs right before a restart:
i.imgur.com/z5srdT3.jpg (I'm not allowed to post image-links since i don't have enough posts)

Bump.

[Q] Input Issues and Data Connection Drops

Hey there.
I have a stock Samsung Galaxy S4 Active on the AT&T network. Recently, I've been plagued by a number of troubles.
Bit of background:
For a while, I had the most bizarre issue: the screen thought I was touching it when I wasn't, near the bottom-middle of the screen, and would attempt to open/click on anything in that area. Often turning the screen on and off would help, for a little while. I was reaching my wits' end, because that would obviously be very frustrating to someone who uses their phone frequently throughout the day.
I thought maybe it had been new software I had installed, so I did a factory reset. Problem remained. I factory reset with NO backups. Problem remained. I updated to 4.4.2 via OTA. Problem remained...
And then mysteriously went away on its own.
I've been working in tech for a decade now, mainly in PC and server architecture, so I know better than to look a gift horse in the mouth - but I also know better than to think a problem that "mysteriously" goes away is gone for good. So the first part of my question: does anyone know what could have possibly been causing this?
I'm not super phone-savvy. I've rooted and flashed a few phones in the past couple years, but I'm by no means developer-level.
---------------------
Which brings me to my next problem... around the time that this issue went away, another one cropped up. Randomly, my phone will stop sending/receiving texts/calls, and the data connection will not function. This will continue until I turn on airplane mode and turn it off--at that point I receive all my missed texts, and it works again... sometimes for 5 minutes, sometimes for nearly 2 days. It's really frustrating. I've tried factory resets, I've tried restoring default APNs... but I'm at my wit's end with this. Can anyone help?
Thanks!

I should add that, with my last issue, it still shows a data connection in the notification bar - but there is none, or at least, no activity on it. It doesn't simply act as if it's in airplane mode and go "wah no data network" as soon as I try using it--it just simply hangs for ~30 seconds, then times out. Messages don't get received, webpages don't load, calls don't get placed, etc.

[Q] Radio shuts off for ten seconds after every call

I'm running 4.3 rooted on ML2, stock ROM. Within the last week I started experiencing a strange problem - after every single phone call made or received, I lose all network connection for about ten seconds. I get the circle with the line through it. Going into settings shows actual connection drop, not just the icon. Then, the connection reappears. I've made no modifications since rooting it in April, nor do I recall removing or freezing any apps any time recently. Powering down and/or removing the battery has done nothing to help.
Any ideas what would cause this? I can't find any threads here, or through a google search, discussing this problem. Any help is appreciated.
Update - same problems when running in safe mode.

Well, this seems to have been a local network problem, as the issue has magically disappeared. Nothing exciting to report.

fullboogie said:
Well, this seems to have been a local network problem, as the issue has magically disappeared. Nothing exciting to report.
Click to expand...
Click to collapse
Remove SIM card and clean?

Yep - did every trick in the book. Even reflashed via Odin to be sure I didn't have a corrupted radio file. It just started working again. I"ve seen the same problem reported in other parts of the country, apparently the result of something AT&T was doing to the network.

[Q] Mobile network bug

So, since the 5.1.1 update I've been experiencing this bug, where the phone keeps loosing the connection to the mobile network completely randomly here and then, though when it cuts off it immediately comes back after a millisecond. This has been happening for a couple of days, I tested to reboot and seems the issue remains. Do you guys have any idea of what I can try to do before doing a complete reset to the phone?

Big Poppa Nexus said:
So, since the 5.1.1 update I've been experiencing this bug, where the phone keeps loosing the connection to the mobile network completely randomly here and then, though when it cuts off it immediately comes back after a millisecond. This has been happening for a couple of days, I tested to reboot and seems the issue remains. Do you guys have any idea of what I can try to do before doing a complete reset to the phone?
Click to expand...
Click to collapse
try a different radio.

Same here, but has happened since I bought the mobile, through it is not too annoying.