Develop Bugs

Data connection keeps dropping

I'm running my Captivate glide on Orange network (device is unlocked).
I rooted it following all the steps shown in http://forum.xda-developers.com/showthread.php?t=1378082 (BTW, works great thanks).
I kept AT&T rom, but issue happens also with Rogers rom.
This happens only on 3G/3G+ connections.
WiFi works great.
The issue looks quite simple: data connection drops (very) often.
No more email push notifications, ...
Have to go to Settings > Network > Airplane mode : switch it on and then witch it off to get data connection back.
It is not an operator issue. My other phone(s) are using the same and data connection works.
Is this a radio rom issue ? Is there a fix ? (didn't find a thing related to that issue).
Anyone having this issue ?

Depends on how strong your network is, I have experienced this a few times.

I keep getting this now that I have had more experience with it, anyone else experiencing random sharp drops in data speed/connection?

vil33 said:
Depends on how strong your network is, I have experienced this a few times.
Click to expand...
Click to collapse
Well, I have 4 out of 5 bars... Signal looks strong enough to me.
If I use the same SIM card in a HTC MyTouch 4G slide => Works great, no data connection drops at all !
Looks like it depends on what programs are running and using the data connection:
- email push - connection last long enough.
- when I'm running Bejive (IM) - connection last a bit less (before the 1st drop).
- when I add Skype & LoudTalks : almost every 5 minutes connection drops.
I also noticed that after a voice phone call, sometimes data connection doesn't (cannot) restart by itself ...
Here is an idea :
Is there a way to tweak Operator connection like it can be done with HTC phones : GSM + CDMA, CDMA Only ?
Because when you switch the phone to CDMA only, it uses different frequencies and allow to keep data connections while talking on the phone.
Didn't find that option in Captivate Glide settings ...

frav said:
Well, I have 4 out of 5 bars... Signal looks strong enough to me.
If I use the same SIM card in a HTC MyTouch 4G slide => Works great, no data connection drops at all !
Looks like it depends on what programs are running and using the data connection:
- email push - connection last long enough.
- when I'm running Bejive (IM) - connection last a bit less (before the 1st drop).
- when I add Skype & LoudTalks : almost every 5 minutes connection drops.
I also noticed that after a voice phone call, sometimes data connection doesn't (cannot) restart by itself ...
Here is an idea :
Is there a way to tweak Operator connection like it can be done with HTC phones : GSM + CDMA, CDMA Only ?
Because when you switch the phone to CDMA only, it uses different frequencies and allow to keep data connections while talking on the phone.
Didn't find that option in Captivate Glide settings ...
Click to expand...
Click to collapse
Settings --> Wireless and Network --> Mobile Networks --> Network Mode
Didn't make a difference for me using HSPA only.

vil33 said:
Settings --> Wireless and Network --> Mobile Networks --> Network Mode
Didn't make a difference for me using HSPA only.
Click to expand...
Click to collapse
I just checked ... I don't have the "Network Mode" option in "Mobile Networks" section.
I have Roaming, allow data connection, APN, ... but not Network mode.
Weird...
I checked the operator info. Nothing out of the ordinary there.
I'm stuck ...and it keeps happening. No solution for now.

frav said:
I just checked ... I don't have the "Network Mode" option in "Mobile Networks" section.
I have Roaming, allow data connection, APN, ... but not Network mode.
Weird...
I checked the operator info. Nothing out of the ordinary there.
I'm stuck ...and it keeps happening. No solution for now.
Click to expand...
Click to collapse
Maybe try flashing the Rogers kernel and ROM since that's what I have?

vil33 said:
Maybe try flashing the Rogers kernel and ROM since that's what I have?
Click to expand...
Click to collapse
Already did that, but that was a few days ago when looking for the WiFi tethering feature ...
I'll flash it back to Rogers kernel & ROM and test.

Update: Flashed Rogers rom.
Good news is I now have the Network settings back. (AT&T rom is not the right one, for sure !)
Data connection last longer. But the issue is still here.
Still investigating...
Anyone else having this issue ?

the day before yesterday, I went to the copier room in my school and stayed for about 2 hours (too many copying). before i get out, i have no signal (mobile network not available). I need to go out to have signal back or reboot.
It happened again yesterday on the exact same location, I'm going to be there again now.
I believe it might be location wise....in my case at least.

gabby131 said:
the day before yesterday, I went to the copier room in my school and stayed for about 2 hours (too many copying). before i get out, i have no signal (mobile network not available). I need to go out to have signal back or reboot.
It happened again yesterday on the exact same location, I'm going to be there again now.
I believe it might be location wise....in my case at least.
Click to expand...
Click to collapse
I checked, looks like it is not linked to a specific location. I've been travelling and issue kept occuring.
Once data connection is ok, it usually stays up for 2 to 5 minutes, then drops.
"4G" symbol is still displayed - but no more data connection. Web pages not available in browser, no email sync, no more IM, ...
While data connection is down, Cellphone still works, WiFi as well.
It may be linked to an APN issue ... Or definitely a Radio ROM issue.
I'm running Baseband I927RUXKJ5.
Anyone else having this issue ?

When I got the phone the AT&T rep told me there was a known issue with the phone dropping down to lower data speed. He told me if I experienced it to get a new SIM card. Doesn't sound exactly the same but maybe try that?

A few questions about the GNex - Network, Mail etc.,

Hi Guys,
So, I've been using the GNex for about a month. I moved to this phone from a Moto Atrix and here is what I have noticed and have looked around but didn't see any good answers to these questions I am having. Hopefully I get some answers here.
Device info:
GNex GSM version on ATT.
Running JB 4.1.1 Stock with Trinity Kernel (rooted and bootloader unlocked).
Issue #1: I get really bad reception at work. But, when I leave the building, my phone doesn't automaticaly connect back to the network. Sometimes, if I don't check my phone, it's been like that all night long until the next day when I have tried to make a call and it said "No Network Available" and I have to either reboot or toggle airplane mode to get back on the network. Am I missing something? In my past experience with other devices, they try to automatically connect back to the network when they loose connectivity. Also, if I get in an elevator during a call and the call gets dropped due to network unavailability, it doesn't connect back to the network and I have to toggle airplane mode. Has anyone else had this issue?
Issue#2: This is with the stock mail app. Specifically the search in this mail app. No matter what, it always returns zero results. Has anyone had this issue with the Mail App? If I use the Gmail app, it works fine. That's what I am using now, but am curious as to what I may be missing that make it not return any search results in the stock mail app.
Q3: Speed Dial: How do you set speed dial on the dialer? Is it even supported?
thanks in advance,
vG

verruckterGeck said:
Issue #1: I get really bad reception at work. But, when I leave the building, my phone doesn't automaticaly connect back to the network. Sometimes, if I don't check my phone, it's been like that all night long until the next day when I have tried to make a call and it said "No Network Available" and I have to either reboot or toggle airplane mode to get back on the network. Am I missing something? In my past experience with other devices, they try to automatically connect back to the network when they loose connectivity. Also, if I get in an elevator during a call and the call gets dropped due to network unavailability, it doesn't connect back to the network and I have to toggle airplane mode. Has anyone else had this issue?
it could be to do with your radio, what version is it? baseband version in about phone. im no expert but when i flashed a jellybean rom i had to update my radio afterwards cause my signal was dropping alot. i also had the same problem later on but that was down to my network operator. before i realised it was them i googled my problem and a few forums suggested that my sim card was goosed. so maybe check those three possibilities? i cant help with the other two issues unfortunately but good luck sorting it out!
Click to expand...
Click to collapse

No phone signal yet can use mobile internet

I've got a strange problem that I cannot solve or find anyone else that has had the same problem.
I recently updated to Minco V4 and since my status bar has been showing no signal and mobile standby shows 100% without signal yet I have mobile data. I cannot make any phone calls but can browse the internet. No amount of rebooting, airplane mode on/off will work. I've also gone back to both stock ICS and JB where the problem still exists.
My network is T-Mobile and it won't let me manually connect to it but the phone will occasionally register when I select automatic although it doesn't correct the fault. Anyone have any ideas what has gone wrong with my phone?
UPDATE: It seems I can only get a phone signal when select 2g T-mobile network only or connecting to T-Mobile orange. If I untick 2g networks and it connects to t-mobile 3g I can't receive or make calls.

Does your Radio and baseband match?

I installed the linked radio from the MiNCO thread after flashing the rom and discovering this issue yet it made no difference.
I got a phone signal momentarily about 15 mins ago which allowed me to make a short phone call to test it. I then accepted the JB system update from Google and now have no phone signal, just data.

[Q] WiFi connection issue Galaxy S II

I need your help everyone. My brother is using the Galaxy S II running ICS 4.0.1 that was bought along with my S III and it is acting up. GSII is running stock ICS, and still in stock configuration. Phone is not rooted or messed with in any manner. The phone connects and stays connected to the Home Network, but data transfer stops after few seconds. All the other devices at home (laptops, PC, other phones) stay connected and works fine. Home network is through Century link and wireless is through actiontec modem and wifi router - http://www.actiontec.com/products/product.php?pid=264#.UOyOPB3aI7s). He has been using this phone with no problems with the same wireless network for almost 4 months and this issue started almost a month ago. I have no idea why it went wrong all of a sudden and not had any luck in finding a solution from all my research.
Problem: When WiFi is activated, it will connect to the home wireless network and will work for few seconds. As soon as background activity that requires data stops, the WiFi stops working. If I am browsing or a video is playing on Youtube, it will stay connected, but as soon as I exit out of the application that is pulling data, it stops working. I have to turn it off and back on again for it to work, but this issue repeats. From looking at the signal bars for WiFi, its full (I was sitting next the router) upload arrow blinks once in a while but noting on the download. None of the apps are connected to the network. Browser will show loading for a while and then displays no network connection message. I tried google play, youtube, third parts apps etc. to ensure its not just the browser. When I turn off the WiFi, the phone seams to download a bunch of messages and updates that was not being pulled for a while. My GSIII connects fine with the network and it works fine even after being idle for hours. I have no idea what is going on and would really appreciate any help. I am close to calling Samsung and T-mobile, but thought I will try here first as we all know how easy it is to deal with those guys.
Things I have tried so far: I have tried all of the following based on suggestions I read from other forums I found through google search.
1. Factory Reset the system: FAIL. After the reset was complete, I waited for everything to finish loading and then I connected to WiFi by inputting all the necessary details. Same results, will work for few seconds and stops.
2. Restart the Modem and Router: FAIL. I do not think it is modem or router related issue as my S III seams to connect and work fine.
3. Turn off the security for wireless network: FAIL. Same result as above.
4. Try different encryption: FAIL. Same result as above.
5. Forget the Network and redo: FAIL. Same result as above.
6. Change the IP address to Static in advanced settings for the network: Worked for a while and then this stopped too.
7. Change WiFi sleep policy: FAIL. Changed it to " When device sleeps", "Never" and "Always", does not make any difference.
8. Third party apps suggested by everyone: FAIL.
This is where I am at right now. I have tried to include all the information possible. Please ask me if any other information is needed.

Last resort ... try a warranty replacement.
Is the phone experiencing the same issues with other wireless networks (coffee shops, McD's)?

[Fixed]
The issue was not with the phone, but with the router/modem. This was the century link modem with wifi and router from walmart that was bought for $99. Its an actiontech router with built in modem for century link. This does not work and dont bother purchasing it. I ended up buying the NETGEAR DGND3300 RangeMax Dual Band Wireless-N Router with Built-in DSL Modem from Amazon (http://www.amazon.com/gp/product/B001UHMB5O/ref=oh_details_o01_s00_i00) for a 30 dollars more, but it works. Only extra step was that i had to call century link for my username and password that needs to be entered during the setup procedure. The actiontech from walmart did this automatically (mainly because this was a century link branded product).

[Q] Stock ROM - Mobile network disconnects - reboot fixes

I have a stock GN, rooted, but still running stock ROM. Anyways, a couple weeks ago, I started noticing issues with the cell connection. The cell signal triangle would lose all bars and turn into just a blue outline of the triangle (i.e. not gray in the middle). Mobile data wouldn't work, and toggling airplane mode wouldn't bring it back. Rebooting the phone seemed to fix the problem, but it just happens again every couple days.
Is there anything I can do to fix this?

talz13 said:
I have a stock GN, rooted, but still running stock ROM. Anyways, a couple weeks ago, I started noticing issues with the cell connection. The cell signal triangle would lose all bars and turn into just a blue outline of the triangle (i.e. not gray in the middle). Mobile data wouldn't work, and toggling airplane mode wouldn't bring it back. Rebooting the phone seemed to fix the problem, but it just happens again every couple days.
Is there anything I can do to fix this?
Click to expand...
Click to collapse
Have you tried searching on here for another radio?
Find one compatible for your particular device, download and extract to where adb is.
Then boot into fastboot mode (with unlocked bootloader) and type fastboot flash radio (name of radio file).img
fastboot reboot
Should improve reception hopefully.

passion8059 said:
Have you tried searching on here for another radio?
Find one compatible for your particular device, download and extract to where adb is.
Then boot into fastboot mode (with unlocked bootloader) and type fastboot flash radio (name of radio file).img
fastboot reboot
Should improve reception hopefully.
Click to expand...
Click to collapse
I don't think it's a reception issue, as I usually have 3 - 5 bars at home when this happens (not that it's limited to happening at home). I'd rather not install a different radio, as it's using the stock radio and I don't want to add more complexity to the issue.
I'll try and get a screenshot of the status screen next time this happens.

Radio is updated. Even with the latest build of android, you may not have the latest radio.
Upgrading the radio should definitely help if you're willing to take a chance.
I had similar issue with both stock and custom ROM. Upgrading my radio has helped and I never get a disconnection problem.
Hope that helps
faxed from my nexus

Update bootloader to the latest version as well. Use "GetRil" app to check that your RIL and radio firmware version match.
Sent from my Nexus

Mobile Network State Disconnected
OK...I’ve been having this problem for a few months now. I can make calls, text, access voice mail...I just can’t connect to the internet without being connected to a WIFI network. I can’t send email or receive email or use an app that requires internet access.
I’ve tried...
*rebooting
*switching WIFI on and off (it is set to automatically connect to a WIFI)
*removing and reinserting the battery
*drained the battery completely and then charged it completely
*going into airplane mode and back out
*updating profile and PRL
It is data enabled and set to connect to data services when roaming.
I have no SD card.
CDMA is set to automatic (there’s only 2 choices: Home only and Automatic)
Preferred network mode is LTE/CDMA. (Again, 2 choices: LTE/CDMA and CDMA) I’m at home now...turned off WIFI on phone and changed network mode to CDMA. Opened Chrome and it opened the page. I went back to LTE/CDMA and it opened the same page. I’ll have to try that when I'm running errands or something and not logged on to a WIFI.
I finally took it to a Sprint store here on Friday, May 9th. Spent about 10-15 minutes with the person. It was fixed and working when I left the store.
Guess what? It’s disconnected. Again.
I’ve had this phone for a little over a year. So far, I’ve replaced the charging cable (twice, not including the ones I broke) and battery. I can’t change phones until next year without shelling out a few hundred bucks--which I don’t have.
Any help and/or suggestions (even sympathy at this point) would be helpful. I’m extremely frustrated!