Develop Bugs

No data while calling

I noticed that when i am on a call my data connection dissapears and when i hang up the connectino returns.. is this a known issue? or does anyone know how to fix this?
Also the connection drops a couple of times a day (random intervals) and i have to enable and disable airplane mode to reinstate the connection..

if you got only a 2G signal, this is normal and has been asked multiple times.
It also depends on your network. Some networks don't allow simultaneous voice and data, even on 3G!
as for the random drops, that ain't normal but can be the network killing the connection from their end to free up bandwidth on a inadequate network or cell.
of course, it could also be a dodgy phone :-(

It's normal in 2 situations:
- you are on 2G (GPRS, EDGE)
- you have poor signal and the phone can't cope and prefers to keep the voice connection.
Have you tried to browse while talking and it didn't work or is it just the indicator that disappears?

Works for me, called my landline from mobile, dropped to the home screen once the call connected, then loaded google in the internet browser (and it even detected my location!) Oh I was on hsdpa btw.

I know that Orange phones wont allow data and voice simultaneously

Im on orange and i just tested it on a 3g connection, it does work for me

I'm on t mobile UK, as I said above works here.
Sent from my HTC Desire using the XDA mobile application powered by Tapatalk

Tip: Market app (wireless access)

As I mentioned in my earlier thread I recently bought a Motorola Defy. Like many other users that I read about before purchasing my first android smartphone I was not able to open Google Market app after a factory reset.
My hint is based on my own experience and I hope it serves someone else well with similar issue.
As I write this message I have no data plan on my contract and I intend to use wireless connection for emailing, internet browsing, and the Market app. Once I completed the initial setup I put my handset's network mode to 2G only. I was worried to be charged for accessing data on 3G.
I had no problem using the Market app initially over the wireless connection until I did a refactory reset to re-setup my handset properly second time round. It was then the Market app stopped working and not even a master reset resolves the problem and then I was considering to root the handset to remove certain folders as a solution to the problem.
Everytime I laucnhed the Market app it stuck at Terms and Services page. It then occurred to me to change the network mode to Automatic and switch off the wireless connection to see what would happen. Next time I laucnhed the Market app it took me straight to the market's home page. It took me two days to figure this out : (
Once I was in the market I switched the network mode back to 2G only and turned on the wireless again. Everything is working just fine now. For the porpose of this thread I powered off the handset and turned it on again to see if my last settings i.e. 2G only still launches the Market app successfully or not. I can confirm that the Market app works just fine over the wireless connection just fine with 2G only network mode.
BTW, the batter life of this handset is so impressive. I used it one and half day very extensively (over 20 times of restarting the handset alone) and I was very surprised lasted that long. On moderate use and proper battery management (no widgets, no 24 wireless connection), and putting it on air plane mode at nights I would get over 2.5 days before charging is required.
I can't wait for Android 2.2 release to make this handset even more productive for me : )

CSharpHeaven said:
As I write this message I have no data plan on my contract and I intend to use wireless connection for emailing, internet browsing, and the Market app. Once I completed the initial setup I put my handset's network mode to 2G only. I was worried to be charged for accessing data on 3G.
Click to expand...
Click to collapse
I think you may have a misconception of 2G versus 3G. They are different technologies. When your phone is in 2G mode, it uses one type of network for both voice and data. In 3G mode it uses another type which provides better voice quality and faster data speeds.
Either way your phone will still try to access data unless you turn off mobile data. If it's in 2G mode and you see the little "E" icon up in the notification area, it's still accessing mobile data - just at a slower rate.

cmstlist said:
I think you may have a misconception of 2G versus 3G. They are different technologies. When your phone is in 2G mode, it uses one type of network for both voice and data. In 3G mode it uses another type which provides better voice quality and faster data speeds.
Either way your phone will still try to access data unless you turn off mobile data. If it's in 2G mode and you see the little "E" icon up in the notification area, it's still accessing mobile data - just at a slower rate.
Click to expand...
Click to collapse
Thank you for your inputs. I'm very new in the world of smartphones but learning fast.
I searched around to find out how to disable Mobile data and chosen this method *#*#4636#*#* and changed my network type to GSM for best coverage and battery life now. I can confirm the Masrket app still works with wireless connection.

Changing to GSM only does not disable mobile data.
Sent from my Nexus One using XDA App

cmstlist said:
Changing to GSM only does not disable mobile data.
Sent from my Nexus One using XDA App
Click to expand...
Click to collapse
I disabled the Mobile Data option by pressing the Settings button then More>Disable Mobile Data. It was then I noticed the options for changing my network type beyond just 2G and 3G.

CSharpHeaven said:
I disabled the Mobile Data option by pressing the Settings button then More>Disable Mobile Data. It was then I noticed the options for changing my network type beyond just 2G and 3G.
Click to expand...
Click to collapse
Did that work then? You no longer connect with mobile date, I'm asking because I have now ordered my Defy but like you don't have a network plan so need a workaround.

CSharpHeaven said:
I disabled the Mobile Data option by pressing the Settings button then More>Disable Mobile Data. It was then I noticed the options for changing my network type beyond just 2G and 3G.
Click to expand...
Click to collapse
Right ok, thanks for clarifying
In Froyo there is a mobile data toggle in the regular menus, and on all Sense phones too. Is there one on Blur phones? I guess not.
Another way to block data is to go to your APN list and fudge the entry (e.g. change epc.tmobile.com to epc.tmobile.com.nodata).

jk1234 said:
Did that work then? You no longer connect with mobile date, I'm asking because I have now ordered my Defy but like you don't have a network plan so need a workaround.
Click to expand...
Click to collapse
The only way I can assure you I have successfully disabled Mobile Data by looking at the reception icon in notification bar that no longer displays G, H, E, and 3G at anytime.

[Q] Using G1 Android on T-Moble Pre-paid with low data plan

I think I managed to say a lot of money by going with a low data plan, but they're telling me the android is going to constantly ping the Internet using up all the data allowance. Is there a way to disable the data functionality when I don't want it (like turning off wireless on a laptop)? When I'm connected to a Wi-Fi network, does it automatically use the local network instead of data minutes? If not, how can I make it do that.

I was able to find my data usage on my.t-mobile.com and verify that as long as Wi-fi is available, it will use it instead of the data plan. I was also able to confirm through another test that images in text messages don't count on the data plan, but under texts instead.
This is good. Now I have to find out how to tell if applications are pinging the network on their own or not.

yes indeed

roam control no 3g

I'm using the Samsung Epic and i just bought roam control...when i press roam only it goes into roam signal but there is no 3g or 1x or any data...did i do something wrong? how do i get data to work? Thanks

go to settings from the home screen and make sure you have data roaming turned on... but if I'm not mistaken, you will only ever data roam on 1x (talking from experience, not any known document or anything)

Wizard Knight said:
go to settings from the home screen and make sure you have data roaming turned on... but if I'm not mistaken, you will only ever data roam on 1x (talking from experience, not any known document or anything)
Click to expand...
Click to collapse
Data roaming is on... any other possible solution?

I have used this app before without a hitch. I couldn't get data to work until I picked "roam" for the data roam guard.
Sent from my Flashback 8.0 using xda premium

You may have already done this, but ensure your data network is ACTIVATED (hold down the power button and instead of selecting power off, select data network). If it is already activated, i.e. you get a 3G signal when you get a Sprint signal, then try deactivating it and reactivating it.
Btw, you are not using a 3G toggle widget of any sort are you? The ones that actually work only work about 50% of the time (buggy), so I don't use them anymore.
If all else fails, try rebooting, wait for a Sprint 3G symbol then switch to Roam.

I thought I remember from somewhere that our roaming is onto the verizon network. And that in the sprint/ verizon agreement, that sprint customers who roam on verizon are restricted to 1x.
I think this is part of why with sprints ec05, it won't show 1x, just 3g no matter what.

[Q] Wireless Tethering interrupted by phone calls

Sprint Gnex currently running AOKP 35 w/ Franco Milestone 3 kernel.
Whenever I am tethering via native or WiFi Tether, incoming phone calls break internet connection. I just came from HTC EVO 4g which had DDTM mode option in menu which prevented this.
I was able to access DDTM mode on Gnex by entering *#*#DATA#*#* and MSL (obtained via a script found elsewhere on this board), but whenever I try to toggle DDTM "on", it immediately reverts to "off".
I have purchased Tasker from Market and am trying to figure out a profile which auto forwards all calls to voicemail during active net connection to prevent interruption but there must be a more elegant/simpler solution.
I have already tried flashing back to stock, rooted ROM, and CM9 ROM with same results, i.e., unable to toggle DDTM on through dialer codes and MSL.

follow up
I found another option in dialer codes which allows me to set as "EVDO only". Will this accomplish uninterrupted tethering?

I know VZW can only handle voice or data at once over 3G, if you are on LTE it can do both voice and data at the same time. I am guessing it is the same for Sprint. Maybe someone else will be able to confirm this.

Um... You can't do simultaneous data and voice over EVDO (3G) on the Sprint Galaxy Nexus. It's not an SVDO device.

WiredPirate said:
I know VZW can only handle voice or data at once over 3G, if you are on LTE it can do both voice and data at the same time. I am guessing it is the same for Sprint. Maybe someone else will be able to confirm this.
Click to expand...
Click to collapse
it is the same for sprint.
if you are on 3g, you can only do 1 or the other. limitation of EVDO.
if you're on LTE (which is not common for sprint), you can do both as the data is using LTE and not CDMA.

I realize it's a limitation of CDMA; hence reason for OP
However, previously being able to toggle into DDTM mode on my OG EVO alleviated problem while tethering on same CDMA network.
I think I have found workaround for my Gnex: *#*#data#*#<EDIT<MSL<Others/More<HDR/1X Selection<EVDO Only Mode.
Kind of a PIA, but until a more elegant solution arrives, it will work to avoid pesky breaks/interrupts in long DLs.

If you're near a wifi hotspot, wifi will continue to d/l also while talking on phone, as that's a different radio. If you're on the road, then that won't help! Unless you buy a second phone, enable that as a wifi hotspot, connect to phone 2 using phone 1 wifi....jk

Zepius said:
it is the same for sprint.
if you are on 3g, you can only do 1 or the other. limitation of EVDO.
if you're on LTE (which is not common for sprint), you can do both as the data is using LTE and not CDMA.
Click to expand...
Click to collapse
I find that when I am tethering on LTE data, my data shuts off when a call comes in.
I would love to find a way to stop this. LTE and Voice should be able to be simultaneous.