Android :: Device Or Resource Busy On RFCOMM Reconnect
Dec 28, 2009
I'm developing an application that interfaces with an RFCOMM endpoint.Through bluetooth, my Droid phone connects to this device, initializes it, and happily sends and receives data.A problem I have encountered however is when I walk away from the device (while it's sending/receiving) and the bluetooth connection goes stale. I easily detect this in my code by various exceptions thrown by the inputstream/outputstream/socket.
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Aug 29, 2010
Droid X - 2.2 - Rooted
Attempting to deodex, followed the instructions exactly on this thread ([HOW-TO] Manually deodex your phone.) but on my last step when entering "mount -o ro,remount -t ext3 /dev/block/mmcblk1p21 /system" I get the following response from cmd prompt, "mount: Device or resource busy"
The OP said I should try placing the phone in Windows Sync mode or whatever it's called, as opposed to USB Mass Storage, just tried that and again, same message.
If no ideas how to fix this, does anyone at least know what to do so that when I reboot I won't have to do a Nandroid restore? It's getting really annoying going on the 3rd or 4th time.
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Oct 17, 2010
Droid X - 2.2 - Rooted
Attempting to deodex, followed the instructions exactly on this thread ([HOW-TO] Manually deodex your phone.) but on my last step when entering "mount -o ro,remount -t ext3 /dev/block/mmcblk1p21 /system" I get the following response from cmd prompt, "mount: Device or resource busy"
The OP said I should try placing the phone in Charge Only mode or whatever it's called, as opposed to USB Mass Storage, just tried that and again, same message.
If no ideas how to fix this, does anyone at least know what to do so that when I reboot I won't have to do a Nandroid restore? It's getting really annoying going on the 3rd or 4th time.
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Jan 20, 2009
When I install my application with Eclipse ADT (by simply run and choose device that appears in the list) through USB onto device, sometimes I noticed it consumes internal memory (storage) space even though application is already loaded on the device (exactly same version - just some minor code changes)As my application size getting big, this is really annoying because eventually it will use up all initial storage space of ~70MB and I have to factory reset in order for me to continue testing my application on real device.I did little investigation and find out this seems to happen when
1) load/run application onto device for first time with USB
2) disconnect USB
3) restart Eclipse
4) connect device and try to load/run application onto device
5) internal memory goes down by application size ...
and it does NOT seem to happen as long as I keep USB connection and Eclipse still recognize the device. I'm just guessing here, but maybe does Eclipse ADT creates temporary file of some kind that's get left behind when I disconnect USB? I'm running RC30 so I don't have root access and can't check system files/folders but is there any way to look for these temp files (if any) and clear out either from Eclipse, or using adb shell command?So for now, I leave my device connected to Eclipse all the time but I want to use it as phone as well as sometimes I want to show to my friends to get some feedback etc it would be really nice if I can somehow load application onto device, disconnect and keep testing/using phone.Has anyone experience this issue? If so, is there any walk around to this problem? Or could you point me out what I'm doing wrong here? I tried few things myself, such as close Eclipse right after I launch my application on device, disconnect USB etc but nothing seem to work.
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Apr 18, 2010
This problem has been solved! Thanks a lot to Brad, Denis and junkie! You're the heroes! This is the working code. It connects to Zeemote and reads data from it.I'm trying to connect to a Zeemote (http://zeemote.com/) gaming controller from Moto Droid running 2.0.1 firmware. The test application below does connect to the device (LED flashes) but connection is dropped immediately after that. I'm pasting two test apps below: one that actually tries to read from input stream and second one that just sits there, waiting for the device to disconnect after 5 seconds. And yes, I do have third version :) which first waits for ACL_CONNECTED and then opens socket but there's nothing new in its behavior.Some background info:I can connect to the Zeemote from my laptop perfectly fine using bluez tools (log attached as well). I know for sure that Droid is able to talk to Zeemote as well because 'Game Pro' from the Market works fine with it (but then it's a driver/service so maybe it uses lower-level API?).I noticed that 'adb bugreport' reports neither UUID nor RFCOMM channel for Zeemote while it does so for all other devices (including Moto HS815 headset, another dumb device for which 'sdp browse' reports nothing). Also, when the device boots, Zeemote's priority is 0 (others have priority 100+).I'm quite at a loss here, I worked on it for so long that I ran out of ideas so any help would be very much appreciated (even if you don't know the answer
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Aug 3, 2010
I have an XML resource file:
<resources> <section>
<category value="1" resourceId="@xml/categoryData1" />
<category value="2" resourceId="@xml/categoryData2" />
<category value="3" resourceId="@xml/categoryData3" />
</section> </resources>
Using XmlPullParser, on the START_TAG, I can use:
int value = parser.getAttributeIntValue(null, "value", 0);
to get values 1, 2, 3...however:
int resourceId = parser.getAttributeIntValue(null, "resourceId", 0);
doesn't work...it just yields the default value 0, or whatever I change the default value (3rd parameter) to be. Does anyone know what I am doing wrong or if this is possible?
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Feb 24, 2010
Doesn't seem to be covered in the books Ive looked at.
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Mar 20, 2010
I am looking to code simple application
let's say I have an activity that starts a service which is simply a counter and counter value is reflected on activity UI , when I navigate away from this .I want this counter to be continue and when I get back to Activity I want to see counter count.so the question is
how can a reconnect with the started service and then if I want to kill it ? how can I know the service is already started?
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Jun 10, 2010
I am trying to find out what calendar to use on my home screen. I have the standard calendar widget enabled right now, but it's useless. It tells me I have something scheduled on each day, but that's it. The actual calendar app on my Incredible gives me kind of a bubble indicator for each day that is filled at different spots, depending on whether I have something set up for earlier in the day, middle of the day, etc. I want a full page widget that will do this, just having a marker that says that I have something on that day does me no good. I've also checked out some of the apps so far like Pure Calendar and while they are neat, they tend to tell me only a few days. I want the whole month laid out for me, so I can tell at a glance how busy any particular day will be. BTW, for anyone also wanting a widget with a layout on a day-to-day setup, check out Android Agenda, I use that for a text-based to-do list and it rocks, I just want a graphical one as well. I have stuff going on every day, but some are only 1 or 2 events, so the graphic layout is nice.
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Apr 20, 2010
Often, after I leave a Wi-Fi hotspot, the 3G/HSDPA fails to reconnect and I get the "Unable to connect to the internet, check your settings" message. I've tried toggling the data connection on/off, airplane mode on/off, GSM/WCDMA on/off, but the only thing that seems to work is turning the phone off and on again. "Enable always-on mobile data connection" is checked.There seem to be a few people over at the XDA forum experiencing similar problems, and I've sent a message to HTC support. Does anyone else here have this issue?
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Jun 25, 2010
I have had my desire for about 3 weeks now on O2 contract, and have an annoying problem.I appear to lose signal intermittantly, and end up with a little grey 'x' by my bars. However, this then STAYS like this even when I am back in a normal area, sometimes for hours before I have even noticed that reception was lost.The only way that I have found to get reception back is to power off my phone and restart it.I have called o2, and the only advise they had for me was to remove the sim card and 'give it a little wipe',
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Dec 1, 2013
I've been trying to flash a kyocera Echo m9300 2.3.4 to Cricket. For some reason everytime I install the usb driver on my pc & then connect the phone, my computer blue screens. What do I do to fix the problem so i can get qpst & cdma workshop to find the phone so i can get this headache over with?
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Apr 29, 2010
Going through motions and titanium says no root access and is now downloading busy box , i rooted OK cos it allowed me to download and open a rooted app from market , am i on right tracks?
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Aug 22, 2010
Im new to rooting and I really have no clue what im doing for the most part but I rooted using easy root the other day mainly because I wanted the wifi tethering...
Well after rooting with easy root I noticed it gives you some apps to check out now that your rooted...busy box being one of them...so I did it not knowing what it was.
Now I've realized I have no need for it but I know it installed itself into my bin and some other places I think...just wanting to know what is the proper way to get rid of all things busy box after running install?
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Dec 9, 2013
My phone is Jiayu G3S, with a MTK6589 cpu and android version 4.2.1 I use latest xposed installer and latest gravitybox.
My problem is that something is keeping my cpu busy in the background, preventing it from sleeping.
For example, i left it last night, and i opened it after 12 hours, it was awake and using cpu for about 90 minutes.
My normal consumption is 0.3% every hour, but now it is 3%, like 10 times more. Also noticed greater consumption when screen is on. As you can see, there is no strange wakellock that lasts that long and all my apps have settings not to auto-update. I tried reading my logs but i didnt find any info.
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Oct 22, 2010
I have had my Samsung Galaxy for over 2 weeks now, and I keep having the problem where my phone would lose reception and it would take forever to reconnect or in some cases not reconnect at all.I have to turn the phone off and on again to get it to pick up the network again.Is there a way to solve this problem?
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Apr 15, 2010
I'm running the firmware 1.6 JC6 on my I7500L. (same old IK6 baseband)But I have a problem with Bluetooth.My galaxy is paired with my car bluetooth system.When I boot the galaxy it connects and is ok. But if I leave the car, for sure is disconnects. But is unable to reconnect automatically when I return in my car.If I go in bluetooth settings, I see paired but not connected.If I try to connect it manually, it freezes trying to do so.The only way for me to get my Samsung Galaxy reconnected to my car bluetooth is to reboot it each time I want to use it!
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Aug 21, 2010
I have set up the phone to connect to my home wifi connection and it does this just fine. Once connected I can do everything I wan't. Upload, download, browse and so on.But after a while, once the phone has been asleep, the wifi connection is dropped and the phone drops back onto the cellular data connection. The problem is that once it has done this, the only way to reconnect to the wifi is to switch off wifi and switch it back on again at which point it works fine again until next time it goes to sleep.I have checked the wifi sleep settings etc and this does not help so any clues? How can I persuade this phone to connect to wifi when it's available. Likewise, my other phone (a HTC Desire) will always connect to the wifi if it is in range so I am happy that this is a phone specific issue.
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May 8, 2010
My Nexus One exhibits a very strange and annoying behavior at home.It will sporadically disconnect from my home Wi-Fi and will not automatically reconnect.However, if I go into the settings and choose to manually reconnect it will do it 100% of the time.I have the settings on the Nexus One set to never put the wi-fi to sleep so there is no reason that it should be disconnecting.Has anyone else had an issue like this? Anyone have any advice on solving this problem?I am using a fairly old linksys router WRT54G but I have never had any problems maintaining connections with any of my other devices including laptops, Wii's and iphones so it seems like it must be an issue with the Nexus One.
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Oct 8, 2010
Wildfire running 2.1 (update 1), build 1.25.405.1 CL227575.Every time I toggle Airplane Mode on, when I toggle off again I lose access to sd card and get no network reconnection. The only way I can reconnect is to turn phone off and on again. Network is set to automatic (O2) and Network Mode set to GSM/WCDMA Auto.Anyone else getting same problem, or found an easy solution?
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Aug 21, 2010
I'm on RC3 and decided to uninstall google maps and voice that came with the gapps pack so that I could reinstall them through the market and get updates. However,both downloads failed and now I can't connect to the market at all. It says a server error has occurred.
1) How do I reconnect to the market?
2) Why is the installation of google developed apps failing?
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Sep 28, 2010
Does anyone know if I actually have to root my phone for the app Cache Cleaner to work? I installed it but it's telling me I need the app Busy Box for it to run properly. What does Busy Box do?
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Aug 8, 2010
My Captivate will not reconnect without me manually reconnecting it.
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Jul 22, 2013
I am running android 4.0 on a huawei ascend g600.
Sometimes I switch data off for a few hours so I don't waste data. I do this by "disabling" The data switch. When it cpmes time to switch it back on, the mobile data doesnt reconnect until i restart the phone
I have enabled "always on mobile data"
Anything else i need to do?
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Sep 23, 2010
When trying to make a phone call nothing happens for about a minute then a message pops up saying network busy try again later. It happens overtime I am in this area of about 90 miles!
I have full 3g bars.
Under -80 db signal
Can receive phone calls fine.
Can use the internet fine.
Tried reboot.
Tried prl update.
Tried factory reset.
Tried downgrading to stock 2.1
Had Verizon send me a new phone. fixed the issue for about a week then came back.
Verizon has not heard of this problem.
Other Verizon people even with an incredible doesn't have this problem.
Seems to be getting worse. It used to only happen in the Toledo Ohio area. Now it doesn't work for most of the Ohio area.
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Jun 9, 2010
Phone activated this morning and it's fantastic! My only issue is quite a few numbers do not ring when I call them; I just get a busy signal and cannot progress beyond that. Has anyone else experienced this? I'll see if it resolves. Very troublesome.
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Apr 8, 2012
i'm on absolution 3.7. how can i stop my phone from going to the lockscreen when a call is busy? when a call is busy, the phone goes to the lockscreen.. so how do i make it go back to the dialpad instead?
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Jun 8, 2010
I'm coming from windows mobile here so I'm not sure if this is an Android thing or the Incredible specifically, but the bluetooth implementation absolutely sucks. I'm using the phone with the Plantronics 975, which is an absolutely fantastic earpiece. The problem is that it NEVER automatically reconnects to the headset after moving out of range and then back in. I've also verified this with an old motorola headset, so the phone is the problem. With my Touch Pro 2, I could walk outside to my car to get something with the earpiece still in my ear, and the phone would disconnect and then automatically reconnect when I get back inside. Not only does the Incredible not do this, but when I come back in, even after pressing the button on the bluetooth headset (which I didn't have to do on WinMo) it just says "paired but not connected" in bluetooth settings. In order to get the phone to reconnect with the headset, I have to turn bluetooth off, back on, go into wifi settings and click "connect" EVERY SINGLE TIME I go out of range and back in range. Coupled with the infamous lack of touchless voice dialing, I am seriously dissapointed in Android's implementation of bluetooth, and don't understand how Google can put out a phone that sucks so bad as a phone - especially when in many states such as mine, a bluetooth headset is the ONLY legal way to use your phone when you drive. Any ideas how to fix this annoying problem or am I just stuck with it?
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Jun 15, 2010
I accidentally sent a text message to a caller today when I was already on another call. That's a cool feature and I'd like to use it, but I'm not sure how it happened?
I found the option to change my outgoing text message under my settings, but now I just need to know how to use the feature. I tried it a few different ways with my son calling me while I was on another call, but I ended up dumping him into voicemail instead of sending the text message.
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Sep 23, 2010
(HTC Desire running 2.2) Sometimes the init process enters a busy loop, consuming all CPU time. This has happened to me three or four times now. When it happens, Android System Info shows 100% CPU usage and if you run top in a terminal emulator, you can see that it's the init process eating up the CPU.
This makes the phone real slow and the only cure I know of is a reboot.I was going to check out the logs while the init was looping, but I forgot. I don't know how to repeat this - today it happened when I exitted VLC Stream and Convert, but it happened before I even installed this application.
I think this happened before the 2.2 upgrade as well and my son said his Xperia X10 eats the battery real fast sometimes - so maybe the same problem exists in Android 1.6 already.
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