Develop Bugs

Device not connecting to computer!

Hey there.
Ok I have a problem. I have had my touch pro 2 for about 6 months now and i am really happy with it, but recently i have ran into a problem.
My phone won't connect to my computer anymore! Not just my computer... no computer at all. Not just activesync, no, it doesn't recognise it at all, not even as a disk drive.
I doubt its the cable because it does charge, and i have tried another cable (not a htc cable but its a cable with the same plug, its from my external harddrive) and it still didn't work.
I also tried a hard-reset on my phone, but still... nothing.
Ive read somewhere that you should push the usb connector a bit up, i did that, but nothing (now the usb connector seems wiggly... glad it still charges though) i have no idea what it could be and i thought i'd post here first before going back to the dealer with it. Because without usb connection i can't install costum roms and that we wouldn't want that, do we?
Well, hope one of you guys can help!

That's very strange I have had it once, but that was due to the rom I used. I flashed another rom and it worked again.
What you could try is to download a new rom and put it on your sd car using this:
http://www.julien-manici.com/windows_mobile_wifi_remote_access/
This let's you put stuff on your mobile using wifi. It's worth a try.

But you have to install roms directly from your pc to your phone, while being connected to USB right? The standards htc roms for example can only be installed that way i think... or can you also copy the .exe to your device and run that?
i'll give it a go when i get home. Thanks =]

I am having the same issue here. All of a sudden my PC or Laptop doesn't see the phone at all but it does charge with no issues. When I plug it in I don't even get the sound that the PC knows something was jut plugged into it.

go to settings - connection - usb to pc - untick the enable faster synchronization box
that should do it

As long as you have Hard SPLed your Rhodium you should be able to use the sd card method to install a rom instead of using the PC and usb connection.
You copy the rhodium.nbh file to the root directory of an sd card formatted FAT32 and then boot into bootloader - volume down and power button when off.
Follow the onscreen prompts...
Cheers...

This sounds familiar - http://forum.xda-developers.com/showthread.php?t=741406

Lennyz1988 said:
That's very strange I have had it once, but that was due to the rom I used. I flashed another rom and it worked again.
Click to expand...
Click to collapse
What's interesting with my Tilt2 (not the OP) was that I wanted to flash my ROM with the new AT&T "unofficial" ROM and that's when I found out I couldn't tether. I basically just wanted to tether my phone so I could put that new ROM onto the phone to see if I could make it more reliable and faster. Sigh.

it actually might be the cord...
The same exact thing happened to me... my phone charged with the cord but no computer recognized it...
I bought a new usb cable from radio shack and viola it worked again... so I advise u just trying a new one and if it doesn't work take it back... but try the unchecking the "check for faster sync" box first like someone said bc that do stop it from being recognized sometimes...

mr_sheen said:
go to settings - connection - usb to pc - untick the enable faster synchronization box
Click to expand...
Click to collapse
Yes, this has (almost) always fixed the issue for me. Somehow WDC becomes blind to new device inserts after you plug-unplug them several times.
Slow but stable is better.

[Q] cannot change connect to pc connection/connection default as charging

i had notice there is alot similar post to this problem but none really solved it. so i start this thread to make it more specific
1) once connected to pc, my wildfire automatically charge
2) no pop-up or option on the top to slide down to select either htc sync, mount as sd card, etc
3) tried reboot, mount unmount card, untick usd debugging, changed other rom, but still not working.
4) if connected to pc still automatically charging even if i change "default connection type" to disk drive, or usb tethering
5) i tick "ask me" so i can choose the connection type when connect to pc, but when connected to pc, nothing. just charging.
i'm rooted, using hg hybrid v3 (problem was there before i flash HG rom). it used to work before. i dont recalled when was the last time it start to behave like this. all this time i thought i set the connection default to charging, but when i want to transfer songs, only then i realised this problem. i m not sure which custom rom might cause this problem (if it does) because i had flash more than 10 roms

i have same problem with cm7

I haven't try to format my sd card. because when I connect without sd card, still no connect option. if my card is malfunction/the main problem, then my phone should work fine n show the connect option after I remove the card, right? (I do have connection option on the setting. what I meant no connection option is the pop up conection menu+connection option on the top bar. changing the connection on the setting change nothing)

I too have this prob but never questioned this as i never use htc sync. But if u really wanna use it try this i'm not sure it may work or not but mostly its due to driver problem:
1.Connect your device in htc sync mode.
2.Uninstall or Remove all drivers of htc and also htc sync.
3.Disconnect your device and Restart your pc.
4.Reinstall htc sync and connect your device in htc sync mode.
5.It'll install fresh drivers for your device and if asked to restart then do it else run htc sync.
If you are running vista or later try to run htc sync in administrator mode.
I'm not sure this method work but there's no problem on trying it. Reply your result after doin above steps

I also think the problem might related to my driver but I remember that when I first connect to my pc, there will be pop up menu, and my phone automatically recognized as "disk drive" (I m not install HTC driver yet. infact ,I install the driver after my phone connected to my pc through disk drive connection since the driver located on the SD card). nway, I"ll try your method and post the result later.

I just notice this might not work..the problem is I cannot change the connection. even if I did, it doesn't change the connection. it just charging.. as if I put it on default "charging" as it connect. but I will try later anyway

When i connect my phone the debugging icon shows up and my pc makes the noise but doesnt let me choose mass storage (running cm7). it shows up on my pc on drive f: but when i click it just says please insert a disc into removable storage F:

xynok, did u tried untick the usb debugging? go to setting, application, development, untick usb debugging. u still lucky at least it prompt u something if u connect to pc, mine nothing. its like I plug it to the socket wall not pc

anakhanjing said:
xynok, did u tried untick the usb debugging? go to setting, application, development, untick usb debugging. u still lucky at least it prompt u something if u connect to pc, mine nothing. its like I plug it to the socket wall not pc
Click to expand...
Click to collapse
yeah i tried that

lokeshramesh said:
I too have this prob but never questioned this as i never use htc sync. But if u really wanna use it try this i'm not sure it may work or not but mostly its due to driver problem:
1.Connect your device in htc sync mode.
2.Uninstall or Remove all drivers of htc and also htc sync.
3.Disconnect your device and Restart your pc.
4.Reinstall htc sync and connect your device in htc sync mode.
5.It'll install fresh drivers for your device and if asked to restart then do it else run htc sync.
If you are running vista or later try to run htc sync in administrator mode.
I'm not sure this method work but there's no problem on trying it. Reply your result after doin above steps
Click to expand...
Click to collapse
not working..

try this if u r using sense roms . Also try this for AOSP roms, if there is an option(i dont know about AOSP).
Go to Settings/Applications/Manage applications/All/
Then search for "Connect to PC". Actually in stock roms that was an app by htc. But there must be something similar to that in AOSP roms. Then open that and select, "Force stop" , "Clear data", "Clear cache".
I dont know for sure if that solves the issue or not. But have a try.
And by seeing this thread, actually i got a doubt, "can we synchronise the htc sync in AOSP custom roms". Since AOSP is nothing but removing the HTC crap. Can someone confirm this .......

bharatgaddameedi said:
try this if u r using sense roms . Also try this for AOSP roms, if there is an option(i dont know about AOSP).
Go to Settings/Applications/Manage applications/All/
Then search for "Connect to PC". Actually in stock roms that was an app by htc. But there must be something similar to that in AOSP roms. Then open that and select, "Force stop" , "Clear data", "Clear cache".
I dont know for sure if that solves the issue or not. But have a try.
And by seeing this thread, actually i got a doubt, "can we synchronise the htc sync in AOSP custom roms". Since AOSP is nothing but removing the HTC crap. Can someone confirm this .......
Click to expand...
Click to collapse
nope. still nothing. anyway since it had this problem, I had wipe my wildfire few times, n try different rom.. maybe it is because of faulty cable. but if the cable is the culprit, why it still charging? is it possible the cable is broken but still can charging?

anakhanjing said:
nope. still nothing. anyway since it had this problem, I had wipe my wildfire few times, n try different rom.. maybe it is because of faulty cable. but if the cable is the culprit, why it still charging? is it possible the cable is broken but still can charging?
Click to expand...
Click to collapse
Not telling that it should be, but definitely there is a possibility of a cable culprit.
The USB male/female end has 4 connections in which two connections are used for voltage and the remaining two connections are used for data transfer.
There might be a possibility that the data connection got broken with voltage connection retaining. Try with another cable (any USB v2 cable).
And one more thing, for having the disk drive option, nothing need to be installed in the pc. U need to install htc driver in the pc only if u want to use usb debugging , usb tethering.
[But at the wildfire end the cable has 5 connections and i dont know what the 5th one is for. mostly it will be a NO CONNECTION]

Now i got another idea to diagnose ur issue.
Well do u know of application "pdanet". It uses USB DEBUGGING feature to tether ur phone internet to PC. Actually usb debugging can be used both under charge mode and disk drive mode. What u can know on doing this is whether usb debugging through ur phone is working or not. U can diagnose the thing while checking with every app that uses usb debugging. So try it. Enable the usb debugging in phone first.
---Install pdanet desktop version and follow the setup instructions. It asks to connect ur phone during setup to install usb driver and also pdanet.apk to mobile. Connect ur phone with usb debugging enabled. I doubt whether desktop version installs or not because of ur issue. Mostly desktop version of pdanet will not install without a phone connected having usb debugging enabled. And if the desktop version is installed successfully, that means ur phone usb debugging is working. And if desktop version is installed successfully, that means it also installed the mobile version of pdanet.apk to ur phone (which says that data transfer is working). Then open the pdanet on phone and enable usb tether. Then open pdanet from desktop and connect. Then see whether u r able to access internet from pc.
---One more method is try to use ADB from android sdk. It also uses the usb debugging feature.
If adb and pdanet works, that means usb debugging feature on ur phone is working. If it is so, then it is mostly not a cable problem (as far as i know). And if they dont work there is a chance that it is a cable problem.
......................................................................................................................................................................................
And one more thing. If u have used a stock rom (freshly formatted), and faced the issue, then it is mostly not a software problem. Then it might be cable problem or some kind of problem in ur phone. Also check ur phone radio version. Thats all.

bharatgaddameedi, i cant install pdanet. it say android phone not detected. error =103. i think u were right. its hardware related problem but its look like not the cable. most probably its my wildfire usb jack. i test the cable with other mobile, its working (test it on nokia 5800). before i had this problem, sometime i use htc cable to transfer data for my 5800, and some time i used 5800 cable to transfer data for my wildfire. the difference between the two cable pin might damage my wildfire usb jack.. (u said htc cable got 5 pin, so i asume nokia got 4?)

anakhanjing said:
bharatgaddameedi, i cant install pdanet. it say android phone not detected. error =103. i think u were right. its hardware related problem but its look like not the cable. most probably its my wildfire usb jack. i test the cable with other mobile, its working (test it on nokia 5800). before i had this problem, sometime i use htc cable to transfer data for my 5800, and some time i used 5800 cable to transfer data for my wildfire. the difference between the two cable pin might damage my wildfire usb jack.. (u said htc cable got 5 pin, so i asume nokia got 4?)
Click to expand...
Click to collapse
So, pdanet not detecting the phone means usb debugging is also not working under charge mode. That should be phone hardware related problem like u have said about usb jack.
And No. All the micro USB version 2 cables will be the same. Its same for 5800 and wildfire. I use my previous 5233 cable to my wildfire even now.
The usb jack of wildfire may damage if u have used it in an improper way. Something like pressure on the cable when connected and so on...
So, its not something we can solve here. That should be given to service centre as far as i know

anakhanjing said:
the difference between the two cable pin might damage my wildfire usb jack.. (u said htc cable got 5 pin, so i asume nokia got 4?)
Click to expand...
Click to collapse
Can't be. I am using my N82's data cable for data transfers on my Wildfire from Day 1. The provided data cable is pretty much permanently attached to the wall charger.

I accept the fact that it might be hardware problem but there is one more thing I want to try. how about flashing stock rom from pc? flashing 2.1 is ok since it can be rooted again. I had flash stock rom but from the clockwork mod, not from pc, and the hboot is been remove for save flashing. I never try this before because all this time I thought that the problem was cause by custom rom, so I just need to find the right custom Rom.

How can u flash a stock Rom from pc when the usb is not functioning. RUU will not work.
Things get worse when basic things stop functioning.
Sent from my HTC Wildfire using XDA App

Did you try mounting your SD Card via Recovery? Reboot into Recovery > Advanced > Mount SDCard

Galaxy SII not recognized by computer

Installed the tmobile samsung galaxy SII USB drivers , I am using windows vista and it does not recognize the phone. I tried another vista computer it still can not recognize it. I tried an XP computer, it still can not recognize the phone.
How do I fix this?
Tried using the USB utilities under settings --> wireless and network
Still no luck
any suggestions will be appreciated

tomasitoc said:
Installed the tmobile samsung galaxy SII USB drivers , I am using windows vista and it does not recognize the phone. I tried another vista computer it still can not recognize it. I tried an XP computer, it still can not recognize the phone.
How do I fix this?
Tried using the USB utilities under settings --> wireless and network
Still no luck
any suggestions will be appreciated
Click to expand...
Click to collapse
since you install the drivers into multiple computers and tested them all... it might be your phone.
First can you give more detail on what happens when you plug your phone in? Does your computer make any sounds or searches anything?
ALSO Try installing kies.
if that doesn't work either... looks like you need a warranty exchange

Try using an oem Samsung usb to micro usb cable. I had this problem with my Samsung Galaxy Epic a while back. Everytime I used a generic cable lying around my computer would not recognize my phone. When I used a Samsung cable it worked. Your computer should automatically identify your phone using the right cable. If not re-install them and don't forget to restart your computer before attempting to connect to your computer again. Good luck.

I've had this problem too.
Initially I had kies installed and had to launch the program to access the two 'mounted' removable drives.
I assume the drives mount, but you can't access the drives?
If that's the case, look on the phone and pull down the status bar and check to see if it sees the USB connection. Select that, and allow it to connect as USB storage.

thanks guys for all the quick response.
The problem seem to fix itself. After removing and attaching the USB cable a number of times, the PC suddenly recognized the phone.
I don't know what fixed it.
Now, I can proceed to root my phone!

tomasitoc said:
thanks guys for all the quick response.
The problem seem to fix itself. After removing and attaching the USB cable a number of times, the PC suddenly recognized the phone.
I don't know what fixed it.
Now, I can proceed to root my phone!
Click to expand...
Click to collapse
you probably didn't give it enough time for the pc to actually install the needed components.. it takes a good 5-10 mins for everything to finish installing

I'm faced with the same problem. Only different is, as soon as it shows connect to usb from the notification bar if goes away. I tried the usb tool in wireless but still wont work. I tried the samsung cable as well

know it sounds dumb, but have you rebooted lately? mine wouldnt recognize the sd card when plugged into comp....rebooted....all is well

Windows won't recognize t989

Hello all!
First: I promise I searched the forums and google as hard as I could!
I'm running AOKP JB with CWM, although the problem was present on stock ICS from T-Mobile.
Symptoms: Computer and phone will refuse to acknowledge any connection (nothing shows up in Device Manager), except the phone will still charge. If I do the "remove the battery with USB plugged in" trick, the first time I do it, it will recognize an unknown device, but kies and adb won't recognize it. If I unplug it and plug it back in, it'll go back to not acknowledging any connection.
I previously programmed it (when I was still running stock ROM) via ADB via WiFi, but I need to be able to use ADB via USB. Besides, I can't seem to get ADB over WiFi anymore.
When I plug it into a different computer (Win7), it will, however, recognize my phone.
Earlier this year, before I ever tried programming via WiFi, it connected to my Win8 machine with no problem. I don't think it's a problem with the wifi setup though because the ROM was reinstalled and of course I've restarted ADB in USB mode in the months since...
What I've tried:
Reinstalling Kies
Reinstalling Samsung USB drivers
[^]Restarting the ADB server
Updating ADB
Trying different USB cables
Trying different USB ports
Toggling USB debugging
Toggling MTP mode
The UART thing from the dialer
Restarting the phone and the computer (of course)
Checking to see if my computer's USB drivers need to be updated
The android terminal command "setprop persist.sys.usb.config mass_storage,adb"
Pulling and replacing the battery while connected via USB
Crying in a corner
If anyone can help me, it'd be greatly appreciated! I'm all out of ideas and Google is no longer helpful =/

try to uninstall the drivers that are present anything samsung related to your drivers ... then connect the phone and let the process do its thing if you have the samsung drivers saved on your PC and the drivers still aint working update the drivers and then manually click where the drivers are to install them and hopefully it will work and when you tried MTP is it the only option it gives you no storage or anything ??... and is usb debugging on when you are trying all this ??

krazierokz said:
try to uninstall the drivers that are present anything samsung related to your drivers ... then connect the phone and let the process do its thing if you have the samsung drivers saved on your PC and the drivers still aint working update the drivers and then manually click where the drivers are to install them and hopefully it will work and when you tried MTP is it the only option it gives you no storage or anything ??... and is usb debugging on when you are trying all this ??
Click to expand...
Click to collapse
I tried on my work computer that didn't have any samsung drivers and when the "unknown device" dialog popped up it didn't do anything or install anything, nor did it show up in Device Manager. Unplugging and replugging it back in did not reproduce the dialog box. Togged USB Debugging and still no dialog box saying it recognized it.
The thing with the samsung drivers is that they're self installing so even if it popped up in Device Manager, I wouldn't be able to manually update the drivers =/
I tried MTP both with and without USB Debugging, although it also gives the option for PTP.
At this point do you think I should unroot and go back to stock? It's not been recognized on three computers now! =[

Are you using the stock cable? My computer wouldn't recognize mine without it.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2

foltz61 said:
Are you using the stock cable? My computer wouldn't recognize mine without it.
Sent from my SAMSUNG-SGH-T989 using Tapatalk 2
Click to expand...
Click to collapse
Both the stock cable and a generic cable.

Similar problem
Similar problem as the OP. And hi guys, it's nice to be on these forums.
My device, when I plug it in using the stock cable, doesn't even charge. It doesn't show up in device manager, nor does it give me a notification, or say it's unsupported and bear that yellow icon. I have tried using different USB ports, I have tried the toggling USB debugging, I have tried restarting phone, computer, and taking out battery. I have tried that PDA/MODEM dialer trick. I am using 4.1.2 Jellybean, not rooted. (that WAS my goal,, until I hit this roadblock) I have not connected it to the computer in the past, it's relatively new. I'm thinking the cable is bust.
Any suggestions would be appreciated. It charges fine through a wall outlet plug, be it generic or stock.

so guys ive come to a conclusion i think its something in the samsung usb cables try getting yourself a blackberry usb cable , TRUST ME !!! ever since i got my phoness etc... tablet and yadi yadi samsung usb cables have always seemed to give me problems i think its because they are multi data/charging cables and when using the blackberry usb cable i have never ever once encountered a problem with any of my phones sd/storage problems do yourself a favor and pick up one of those cables and you will be golden !! if not then i guess im the only lucky one :LOL here you go http://www.amazon.com/Blackberry-Travel-Adapter-Micro-Cable/dp/B004VMVSYK/ref=pd_sim_cps_2 5 bucks!
Edit also one more test boot into recovery and click in the advanced menu and see if mount usb works for you in recovery mode ??

FIX (try using a generic cable)
I actually solved it on my own! After borrowing a generic cable from a friend it booted up! The Samsung cable was just not doing its thing.

yeah im telling you those cables they provide are JUNK!!! i only use my samsung to charge because they do that well but data they are str8 CRAP!! glad you got it up and going

OP
Hope OP will have the same luck as me...pray to the Android gods...

Lol:thumbup:
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

USB Connect/ OTG disable

Hello,
I've got a SM-T813 and I ve got a problem with my usb port. I can neither connect to my PC or my usb-Rj45 since i installed TWRP and LineageOs.
I cannot select what to do when usb connection is detected.
I don't kown what's wrong. I changed the cable, re-install TWRP but i does not work.
Odin is not detected to.
Someone to help me please?
Thank you

ETNYBzh said:
Hello,
I've got a SM-T813 and I ve got a problem with my usb port. I can neither connect to my PC or my usb-Rj45 since i installed TWRP and LineageOs.
I cannot select what to do when usb connection is detected.
I don't kown what's wrong. I changed the cable, re-install TWRP but i does not work.
Odin is not detected to.
Someone to help me please?
Thank you
Click to expand...
Click to collapse
Your problem seems simular to what I had.
If you are sure the software settings are ok and that doesnt work, remove the backcover remove the battery connector, put it back again and see if that works. Does charging work?

HANSB57 said:
Your problem seems simular to what I had.
If you are sure the software settings are ok and that doesnt work, remove the backcover remove the battery connector, put it back again and see if that works. Does charging work?
Click to expand...
Click to collapse
Thats weird my s2 tablet has USb problems to. It stopped reading OTG usb connections and the PC. However it is always able to charge. I have noticed that when it does finally read on the PC it seems like the drives dont switch right and my battery wont charge. It got to the point I dont even try to plug it into a pc or USB otg just incase it quits charging I have SD card and twrp for installs so I use that instead. Most be a problem with the usb port and drivers.

Techguy777 said:
Thats weird my s2 tablet has USb problems to. It stopped reading OTG usb connections and the PC. However it is always able to charge. I have noticed that when it does finally read on the PC it seems like the drives dont switch right and my battery wont charge. It got to the point I dont even try to plug it into a pc or USB otg just incase it quits charging I have SD card and twrp for installs so I use that instead. Most be a problem with the usb port and drivers.
Click to expand...
Click to collapse
I dont know the answer nor the solution.
What I noticed however is that I used my tablet as an monitor for an USB web cam.
The problem (charging but not being able to connect to PC) started AFTER I removed the webcam.
The app I use (USB Camera Pro) has an option "remove camera safely"
If I use that option everything works fine but if I remove the cam cable without pressing this option I cant connect to my PC anymore and have to unplug the battery.

I am having a similar issue and would be grateful for help. My Tab T815 has a clean install of the latest Android 10 Rom and Pico Gapps via TWRP 3.4. All seem to be working great apart from the USB OTG. Specifically, I am trying to connect my DJI Mini drone controller and it's not registering it plugged in. I also have Android 10 on a galaxy S5 and have no issues at all when I connect the DJI controller to the phone. I have run a diagnostic app that says OTG is compatible with the T815 so am now at a loss on what to try next. Could this be an issue with the Rom?