Database Develop

[Q]Can't connect in download mode

Hi guys,
I have a real nasty problem here. Whenever i want to connect my SGS in download mode to reflash i get the error "usb device not recognized". When i just connect it as storage i get "this device can perform faster". I habe MIUI 1.12.9 on it, and I really want to flash something else. It stopped working since I accidentally connected my front USB's in the IEEE 1394 slot, instead of the USB one. Since then my external HDD won't work anymore, I had to open it and to use it as an internal one. Is there anything I could do? Or is smth f...ed up with my phone usb...
Any help would be appreciated. Thanks!

got it working on your pc in download mode before?

Try to reinstall the newest Samsung drivers.

sahara101 said:
Hi guys,
I have a real nasty problem here. Whenever i want to connect my SGS in download mode to reflash i get the error "usb device not recognized". When i just connect it as storage i get "this device can perform faster". I habe MIUI 1.12.9 on it, and I really want to flash something else. It stopped working since I accidentally connected my front USB's in the IEEE 1394 slot, instead of the USB one. Since then my external HDD won't work anymore, I had to open it and to use it as an internal one. Is there anything I could do? Or is smth f...ed up with my phone usb...
Any help would be appreciated. Thanks!
Click to expand...
Click to collapse
Once or twice when I get this message I just take out the USB from my laptop and connect it again.. if you are constantly getting this message I think something's wrong with USB.. I would suggest trying to connect on some other computer .. if that also doesn't work then try using a different USB cable..

I already tried on a different PC. Also with another USB cable but a Nokia one. Is it necessary to use a Samsung one?

sahara101 said:
I already tried on a different PC. Also with another USB cable but a Nokia one. Is it necessary to use a Samsung one?
Click to expand...
Click to collapse
No not really.. I have used a nokia cable many times and it has worked fine for me both in download mode and usb storage mode..
if you connect your phone in usb storage mode to a different computer, still the same message is flashed?

Actually on another computer I didn`t manage to connect at all, download mode or mass storage. Everything worked just fine before the USB thing.
Sent from my GT-I9000 using Tapatalk

You can:
1. use a different USB port
2. use a different pc
3. use a program to go to download mode ( POT android tools by opda team).
on different pc - install those USB drivers ->
http://forum.xda-developers.com/showthread.php?t=728929
Click to expand...
Click to collapse

sahara101 said:
Actually on another computer I didn`t manage to connect at all, download mode or mass storage. Everything worked just fine before the USB thing.
Sent from my GT-I9000 using Tapatalk
Click to expand...
Click to collapse
on a different pc you first need to install the drivers for your phone..

Download and install Kies.

POT Android can't find my phone. I'll try again on a different PC...

USB connection not works!

as title: when i connect my OB to PC by USB cable (in USB mass storage mode) the mass storage setup fails! (i use nova v8 rom, but until 2 or 3 weeks ago everything works correctly, and i don't change anything!)
anyone can help me?

Try reboot
Sent from my P-970 using xda premium

ehm...i've already tried 2 or 3 thousand times XD

It might sound silly, but did you ensure that you have Debugging mode enabled on the phone ?
Check to see if Settings->Application->Development->USB Debugging is checked or not.

it's not checked

have you tried reinstalling your ob drivers?¿

Are you using the original cable?
Envoyé depuis mon P-970

i've reinstalled ob drivers many times
i'm not using original cable, but i tried 3 micro usb cables and no one works

mm but do you mean that some programs like pc suite doesnt recognise or just your pc doesnt recognise your ob?¿

i mean i cannot browse ob sd card with explorer

giutal said:
as title: when i connect my OB to PC by USB cable (in USB mass storage mode) the mass storage setup fails! (i use nova v8 rom, but until 2 or 3 weeks ago everything works correctly, and i don't change anything!)
anyone can help me?
Click to expand...
Click to collapse
Have you tried to update the usb driver?

yes, nothing to do

giutal said:
yes, nothing to do
Click to expand...
Click to collapse
I think the only thing you need to do re-install the original rom.You should try it.http://forum.xda-developers.com/showthread.php?t=1448803

LG Optimus black P970 USB Bricked

Please can someone help me, I have an LG P970 but the USB port seems to be bricked. The phone charges when connected to the computer but nothing else. When connecting the phone to the computer, the computer does not see the phone and the phone does not come up with any usb connection mode.
For this reason I rooted my phone and updated it to the latest version of Zeus rom, but this didn't fix the problem. The phone still just charges on the computer but that's all it does.
I think the phone USB drivers are faulty or need resetting. Is there any software APK I can download to fix my phone.
Thanks for any help.

Tokool said:
Please can someone help me, I have an LG P970 but the USB port seems to be bricked. The phone charges when connected to the computer but nothing else. When connecting the phone to the computer, the computer does not see the phone and the phone does not come up with any usb connection mode.
For this reason I rooted my phone and updated it to the latest version of Zeus rom, but this didn't fix the problem. The phone still just charges on the computer but that's all it does.
I think the phone USB drivers are faulty or need resetting. Is there any software APK I can download to fix my phone.
Thanks for any help.
Click to expand...
Click to collapse
Reinstall LG USB drivers.You can try to connect your phone to PC from CWM -> go to mount and storage -> mount usb storage

DaemonOnx said:
Reinstall LG USB drivers.You can try to connect your phone to PC from CWM -> go to mount and storage -> mount usb storage
Click to expand...
Click to collapse
Okay I go into CWM recovery >> mounts and storage >> mount usb storage >>unmount
then I reboot the phone. but things are still the same.

Tokool said:
Okay I go into CWM recovery >> mounts and storage >> mount usb storage >>unmount
then I reboot the phone. but things are still the same.
Click to expand...
Click to collapse
lol.Man.You reboot intro recovery -> mount and storage -mount usb(you don't unmount).
You must have the phone conected to pc via usb.Then you will able to acces your sd card

To me it seems more like a driver issue more than your phone usb not working, try installing the latest drivers as DaemonOnx said

DaemonOnx said:
lol.Man.You reboot intro recovery -> mount and storage -mount usb(you don't unmount).
You must have the phone conected to pc via usb.Then you will able to acces your sd card
Click to expand...
Click to collapse
The problem is that when I go into '>> mounts and storage' the only option available to me is - unmount. There is no 'mount usb option'
By default I select unmount - to which as you say nothing happens.
Happy to try further options if you have any?

Edit - reread OP, response invalid

Tokool said:
The problem is that when I go into '>> mounts and storage' the only option available to me is - unmount. There is no 'mount usb option'
By default I select unmount - to which as you say nothing happens.
Happy to try further options if you have any?
Click to expand...
Click to collapse
Have you reinstalled the drivers in your pc?

Tokool said:
Please can someone help me, I have an LG P970 but the USB port seems to be bricked. The phone charges when connected to the computer but nothing else. When connecting the phone to the computer, the computer does not see the phone and the phone does not come up with any usb connection mode.
For this reason I rooted my phone and updated it to the latest version of Zeus rom, but this didn't fix the problem. The phone still just charges on the computer but that's all it does.
I think the phone USB drivers are faulty or need resetting. Is there any software APK I can download to fix my phone.
Thanks for any help.
Click to expand...
Click to collapse
You most likely have problem with your pc LG drivers.
Download drivers by finding the link for LG driver on this page: http://forum.xda-developers.com/showthread.php?t=1448803
Install the drivers and try connecting and it will work

droblack said:
You most likely have problem with your pc LG drivers.
Download drivers by finding the link for LG driver on this page: http://forum.xda-developers.com/showthread.php?t=1448803
Install the drivers and try connecting and it will work
Click to expand...
Click to collapse
Hi thanks for this. However, the link to the usb drivers is broken. I have installed the usb drivers from the lg website and I know they work fine because I have now tried connect a friend's LG optimus black to my computer and the computer and phone both recognise each other. So I know it's not the usb cable or usb drivers on the PC. I have also installed the LG usb drivers on my laptop and spare computer, however again I have the same problem - phone only charges.
When this problem initially occured about a year ago I sent the phone back to LG and they did some sort of software refresh, which solved the connection problem for a few months, but then things went back to the way they were. I then thought it may be a PC issue so I downloaded drivers and connected my phone to the laptop and everything worked well. However, again, a few weeks later, things reverted back to the same problem. The phone only charges on both PC and laptop now.
Hope you can understand my frustration.

Someone must know something out there? How do I fix this stupid USB problem?

Tokool said:
Someone must know something out there? How do I fix this stupid USB problem?
Click to expand...
Click to collapse
LG service center? you've pretty much tried all I would've

Last time I took the phone there, I was told it might have been the phone port software corrupted. Whatever that mean. If I can't find a fix to this I will need to somehow unroot the phone and try to get it back in its unrooted state to LG (not sure if that is possible) else they probably won't fix it.
I'll keep looking,
thanks for your help.

You are using the the proper usb cord. I know I have a couple. The one will charge only.

Yes I am using original cables, I have three of them. They all work on my Friend's OB but not on mine. I am convinced it's a phone software issue. This has happened with three different computers - when you first install LG software on the computer, the phone connects okay for a few weeks and then loses connection, and I can never get it connected again.
When LG refreshed the phone software for me the phone worked properly for a little while and then reverted back to charging mode only.
I need a way of reinstalling the USB software or port software onto the phone itself via some type of APK if such a thing exists.
Maybe a developer here can develop one???

hey man
if you have disabled the "android platform usb modem" in peripherals manager, enable it first (phone must be plugged)
when you first install LG software on the computer, the phone connects okay for a few weeks and then loses connection, and I can never get it connected again.
Click to expand...
Click to collapse
this means it must be the result of an intervention by a third party thing, by yourself, or another program. If you have a kind of a software which manages ports or consumption (on phone as well as on Win), uninstall them, then uninstall all LG drivers, reboot, then reinstall them. if that doesn't solve your issue, you may have to reinstall windows. that's radical, but it should do it

Try connecting the usb while doing pressure between the LG logo on screen and the back of the phone, like squeezing something . I had this issue and it was an internal connector issue....
Check if you hear the "tada" sound in windows or any message about a new device.

Ilko said:
hey man
if you have disabled the "android platform usb modem" in peripherals manager, enable it first (phone must be plugged)
this means it must be the result of an intervention by a third party thing, by yourself, or another program. If you have a kind of a software which manages ports or consumption (on phone as well as on Win), uninstall them, then uninstall all LG drivers, reboot, then reinstall them. if that doesn't solve your issue, you may have to reinstall windows. that's radical, but it should do it
Click to expand...
Click to collapse
Hi, thanks for this, I'm not sure what you mean by "disabled the "android platform usb modem" in peripherals manager". I am using XP. I have had a look to see if there is any software remotely associated with port consumption etc and have uninstalled these and also reinstalled LG drivers. But situation is still the same.
Please note: I have an LG GT540 and this connects fine to the computer. I have also connected another LG optimus black and this also connects fine to the computer. On the basis of deduction, it must be a phone issue, somehow interacts with the computer fine and then fails after a little while. Also I haven't installed anything on the phone itself which might manage consumption or port. The computer has a usb host controller but not sure that means anything useful.
I do agree and have feeling that if I reinstall windows I bet the phone would start working again, possibly again for a few months. This means I reinstall windows on my pc and laptop and hope it all resolves without actually getting to the bottom of the problem.
What I need is another laptop to try this on. If I try another computer or laptop and it recognises the phone. What do I make of everything??? Any ideas.
ps also tried holding pinching usb lg cable as suggested but nothing different.
Thanks for all your efforts.

Further update to this, I installed LG drivers on a fresh dell laptop. Again nothing happened, the phone only charges. I am even more convinced that phone software is corrupt. How do I reinitialise phone USB software?? If there is such a thing.

Tokool said:
Further update to this, I installed LG drivers on a fresh dell laptop. Again nothing happened, the phone only charges. I am even more convinced that phone software is corrupt. How do I reinitialise phone USB software?? If there is such a thing.
Click to expand...
Click to collapse
flashing a new rom, i think it may be hardware issue

USB connection?

is anybody having problem connecting the phone to the computer through usb after the new kernel updates? i cant seem to connect them using any of the updated rom. i have usb debugging on too. thanks in advance

ReckYoChips said:
is anybody having problem connecting the phone to the computer through usb after the new kernel updates? i cant seem to connect them using any of the updated rom. i have usb debugging on too. thanks in advance
Click to expand...
Click to collapse
No problems here. Did you go into settings, storage, hit menu, select "USB Connection" and make sure the mass storage box was checked?

ArtfulDodger said:
No problems here. Did you go into settings, storage, hit menu, select "USB Connection" and make sure the mass storage box was checked?
Click to expand...
Click to collapse
ohh, haven tried it, but now that i did. my computer says it doesnt recognoze the device..?
EDIT: i just changed the computer... Thanks!

[Q] Can't read Atrix HD on my computer after flashing PACman ROM

Hi guys. I just installed PACman ROM latest version on my previously stock Atrix HD. Now, I can't read my Atrix HD on my computer. I already installed motorola device manager and still can't read. Is there a driver that I need to install? Thanks

tanos0415 said:
Hi guys. I just installed PACman ROM latest version on my previously stock Atrix HD. Now, I can't read my Atrix HD on my computer. I already installed motorola device manager and still can't read. Is there a driver that I need to install? Thanks
Click to expand...
Click to collapse
Because developer mode isn't enable,
Setting --->About Phone--->hit build number 7 times.
Settings -->Developer options--->Android Debugging
rock on.

tanos0415 said:
Hi guys. I just installed PACman ROM latest version on my previously stock Atrix HD. Now, I can't read my Atrix HD on my computer. I already installed motorola device manager and still can't read. Is there a driver that I need to install? Thanks
Click to expand...
Click to collapse
Turn on USB debugging, while connecting your device to system, reboot it without disconnecting. Also if it prompt for RSA key access check always allow this computer and accept it....
Sent from my MB886 using xda app-developers app

No dice
Tried your suggestions, guys. But its still not working.
I tried the 7 clicks. It showed that I have developer access. Then I turned on USB debugging and restarted the phone. No notification about USB debugging, my computer still doesn't detect it.

tanos0415 said:
Tried your suggestions, guys. But its still not working.
I tried the 7 clicks. It showed that I have developer access. Then I turned on USB debugging and restarted the phone. No notification about USB debugging, my computer still doesn't detect it.
Click to expand...
Click to collapse
No adb/debgging is normal on the custom roms. Haven't had adb in at least 2 weeks.

skeevydude said:
No adb/debgging is normal on the custom roms. Haven't had adb in at least 2 weeks.
Click to expand...
Click to collapse
Too bad. Does that mean that I can't use MTP mode?

tanos0415 said:
Too bad. Does that mean that I can't use MTP mode?
Click to expand...
Click to collapse
Can you give details as to what computer/os you are running?
Does it charges when you plug the phone into the computer?
With or without developer mode enabled, your computer should still respond to the phone. If it doesn't then the problem is the computer.

hungrymr2 said:
Can you give details as to what computer/os you are running?
Does it charges when you plug the phone into the computer?
With or without developer mode enabled, your computer should still respond to the phone. If it doesn't then the problem is the computer.
Click to expand...
Click to collapse
Yeah its charging. Drivers tried installing but it says that it was not successfully installed. It also shows as unknown device.
I'm running Windows 7 64bit. It can detect fine back when it was stock. The problem only showed up after I installed PAC rom

The drivers can be corrupted for no good reason try deleting and re-installing.

tanos0415 said:
Too bad. Does that mean that I can't use MTP mode?
Click to expand...
Click to collapse
Can't use MTP or Camera mode (at least on my linux box I can't). All I know is adb doesn't work and that's the only reason I have to plug into usb...I unmount my sd and plug it into my PC to do file transfers (or adb push from recovery)...adb does work in recovery, just not the system.
tanos0415 said:
Yeah its charging. Drivers tried installing but it says that it was not successfully installed. It also shows as unknown device.
I'm running Windows 7 64bit. It can detect fine back when it was stock. The problem only showed up after I installed PAC rom
Click to expand...
Click to collapse
Same things happen on my linux box...problem showed up the same time for me as well....installed a 4.2.2 rom...
//this is a known issue....related to the kernel and usb drivers (started about three weeks ago) Use an earlier, first week of June or so, kernel if you need adb/usb...thought I don't recommend doing that.

frog1982 said:
The drivers can be corrupted for no good reason try deleting and re-installing.
Click to expand...
Click to collapse
+1 try to delete them in safemode to ensure that the old drivers are gone for good.
I did try PAC once and it connected to my win 7 64bit without any issues.
Sent from my MB886 using xda app-developers app

tanos0415 said:
Hi guys. I just installed PACman ROM latest version on my previously stock Atrix HD. Now, I can't read my Atrix HD on my computer. I already installed motorola device manager and still can't read. Is there a driver that I need to install? Thanks
Click to expand...
Click to collapse
I had this problem.
Step 1: Enter system Settings>Developer options.
Step 2: Tick "Android debugging", "USB debugging notify" (makes it easier to know if connection is successful), and change the "Root acess" setting to "Apps and ADB".
Step 3: Reboot Phone and connect to computer.
This is what I did and I haven't had a problem since. Hope this helps

Blackest Pain said:
I had this problem.
Step 1: Enter system Settings>Developer options.
Step 2: Tick "Android debugging", "USB debugging notify" (makes it easier to know if connection is successful), and change the "Root acess" setting to "Apps and ADB".
Step 3: Reboot Phone and connect to computer.
This is what I did and I haven't had a problem since. Hope this helps
Click to expand...
Click to collapse
already tried that. thanks anyway. :good:

Did you do all that And the restart the computer itself? I think I read that on another android forum (android central maybe?) That that helps sometimes...
Sent from my PACman Atrix HD using XDA Premium