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Friends,
I have been using LG Optimus One P500 for 6 months now. My phone is not being detected by my PC. Everything was fine till yesterday...
I am on MikOS CM7 6.5.7 with Franco's Kernel 19.2 BFS+ZRAM. I have Windows 7 Ultimate on my desktop.
Today, when I connected it, it just wouldn't detect the phone. The phone is charging fine via USB... just the PC cannot detect it. There is no notification to connect as mass storage, there is no chime in my computer when I attach the cable...
I tried everything... uninstalling and reinstalling drivers, changing cable, changing PC... but nothing has worked...
Please help.
I am worried because now I won't be able to downgrade and unroot in order to get warranty...!
GauharJK said:
Friends,
I have been using LG Optimus One P500 for 6 months now. My phone is not being detected by my PC. Everything was fine till yesterday...
I am on MikOS CM7 6.5.7 with Franco's Kernel 19.2 BFS+ZRAM. I have Windows 7 Ultimate on my desktop.
Today, when I connected it, it just wouldn't detect the phone. The phone is charging fine via USB... just the PC cannot detect it. There is no notification to connect as mass storage, there is no chime in my computer when I attach the cable...
I tried everything... uninstalling and reinstalling drivers, changing cable, changing PC... but nothing has worked...
Please help.
I am worried because now I won't be able to downgrade and unroot in order to get warranty...!
Click to expand...
Click to collapse
Try flashing cm7 v6.6.1, it may be a bug on v6.5.7
Sent using LGE Xda Secret phone
try use other usb port
example if u use desktop, use the usb port behind the case
laptop = use other usb port
hope it helps, at least work for me
dax4182 said:
Try flashing cm7 v6.6.1, it may be a bug on v6.5.7
Sent using LGE Xda Secret phone
Click to expand...
Click to collapse
Flashed the older CM7 6.5.5... but no change...
XeactorZ said:
try use other usb port
example if u use desktop, use the usb port behind the case
laptop = use other usb port
hope it helps, at least work for me
Click to expand...
Click to collapse
Tried that too... didn't work... DIfferent USB ports, different cables, different laptops... nothing is working. Could it be a hardware issue? The phone is charging fine though...
GauharJK said:
Flashed the older CM7 6.5.5... but no change...
Tried that too... didn't work... DIfferent USB ports, different cables, different laptops... nothing is working. Could it be a hardware issue? The phone is charging fine though...
Click to expand...
Click to collapse
Have u tried wipe everything?
Sent using LGE Xda Secret phone
GauharJK said:
Tried that too... didn't work... DIfferent USB ports, different cables, different laptops... nothing is working. Could it be a hardware issue? The phone is charging fine though...
Click to expand...
Click to collapse
how come
then u can charge the phone using that usb cable ??
or you didn't disable LGE virtual modem ?
dax4182 said:
Have u tried wipe everything?
Sent using LGE Xda Secret phone
Click to expand...
Click to collapse
Wiped Cache, Dalvik Cache, Battery Stats... Maybe I need to format the SD Card, clean System folder and then reinstall everything... If still doesn't work, then LG service center would be the last resort. I wonder how I might be able to go back to stock ROM for servicing... KDZ won't work without USB access...
XeactorZ said:
how come
then u can charge the phone using that usb cable ??
or you didn't disable LGE virtual modem ?
Click to expand...
Click to collapse
LGE virtual modem was disabled. Its been like that since March 2011 when I got this phone... It stopped detecting the phone suddenly... It worked perfectly fine all these months.
The phone can charge without any problems through the USB cable. The problem is I cannot access the SD card from my PC to transfer music or pics, to backup data... Cannot use ADB or LGMDP Tool or KDZ tool...
GauharJK said:
Wiped Cache, Dalvik Cache, Battery Stats... Maybe I need to format the SD Card, clean System folder and then reinstall everything... If still doesn't work, then LG service center would be the last resort. I wonder how I might be able to go back to stock ROM for servicing... KDZ won't work without USB access...
LGE virtual modem was disabled. Its been like that since March 2011 when I got this phone... It stopped detecting the phone suddenly... It worked perfectly fine all these months.
The phone can charge without any problems through the USB cable. The problem is I cannot access the SD card from my PC to transfer music or pics, to backup data... Cannot use ADB or LGMDP Tool or KDZ tool...
Click to expand...
Click to collapse
Bro, i tink ur usb (sending data) is gone... And u only got charging... I tink is to make a move to the crappy customer service...
Sent from LGE Secret phone using tapatalk app...
GauharJK said:
Wiped Cache, Dalvik Cache, Battery Stats... Maybe I need to format the SD Card, clean System folder and then reinstall everything... If still doesn't work, then LG service center would be the last resort. I wonder how I might be able to go back to stock ROM for servicing... KDZ won't work without USB access...
LGE virtual modem was disabled. Its been like that since March 2011 when I got this phone... It stopped detecting the phone suddenly... It worked perfectly fine all these months.
The phone can charge without any problems through the USB cable. The problem is I cannot access the SD card from my PC to transfer music or pics, to backup data... Cannot use ADB or LGMDP Tool or KDZ tool...
Click to expand...
Click to collapse
wipe data/factory reset, format system, mount system, wipe cache, dalvik and batt stats, it must be HELPFULL..
The last time I trashed my SD card the symptoms were pretty similar... in particular, you won't get any notifications on the desktop or your phone if the SD card is not mounted correctly, so try formatting...
Hans Schmucker said:
The last time I trashed my SD card the symptoms were pretty similar... in particular, you won't get any notifications on the desktop or your phone if the SD card is not mounted correctly, so try formatting...
Click to expand...
Click to collapse
I replaced the SD card with another spare card I had with me and tried again... Still didn't work...
Just recently had this problem and it was for me windows
Try using a earlier restore point or reinstall windows (that's what fixed it for me )
Sent from my LG Optimus One P500 using XDA App
So, did u resolved the problem? if so how?
Having the same problerm on stock rom v2.2, tried all the methods suggested here, no luck. When the cable is connected, the phone shows "charging", and in Setting/Wireless & network//Tethering & portable hostpot, it shows USB is connected and I can enable/disable usb tethering. USB debug mod is on, massive storage is off.
Please Help
I have exactly same problem phone is charging but not detect by any pc then i go to service centre they replaced my PCB.at that time my phone is rooted and custom recovery install.when he check my phone and see custom recovery install i just say i don't know what is this i just install a app from market and they believe me changed my PCB.you should flash stock rom available in zip format and go to service centre.
phone-LG P500
Rom-Stock GB
I had the same problem on my pc but it worked on my friends laptop. Might be some problem with windows.
Sent from my LG-P500 using XDA App
My phone is a Telus prepaid. Should I go to Telus Service Center or LG's Service Center? I have the phone unlocked, and I am no longer using Telus. Would that be a problem? It is running the stock 2.2 rom. I have it rooted, but can easily unroot.
Thanks.
vikasb32 said:
I have exactly same problem phone is charging but not detect by any pc then i go to service centre they replaced my PCB.at that time my phone is rooted and custom recovery install.when he check my phone and see custom recovery install i just say i don't know what is this i just install a app from market and they believe me changed my PCB.you should flash stock rom available in zip format and go to service centre.
phone-LG P500
Rom-Stock GB
Click to expand...
Click to collapse
Did you guys tried to turn off usb debugging? it worked for me on mik_os 6.5.8....
glee99 said:
My phone is a Telus prepaid. Should I go to Telus Service Center or LG's Service Center? I have the phone unlocked, and I am no longer using Telus. Would that be a problem? It is running the stock 2.2 rom. I have it rooted, but can easily unroot.
Thanks.
Click to expand...
Click to collapse
i had USB problem before.Its all because of bad PCB.Flash stock unrooted stock recovery and then go to service centre.
If your phone is in warranty,they will do it free of charge
Have you tried turning off USB debugging in setting > applications > development....worked for me.
Sent from my LG-P500 using Tapatalk
Okay! here it goes.
I am to new tot this android os!
The problem is i updated my firmware to 2.3.4 By reading the tutorials in youtube [Since i didnt knew about this forum]
The problem is since i flashed..
The mass storage mode is not getting connected.
Any solutions?[Tho i have a memory card reader]
And also if i update to some other ROM there's a step where you have to connect your phone through usb will this create a problem?
Because my mass storage mass is not getting connected?
azen1 said:
Okay! here it goes.
I am to new tot this android os!
The problem is i updated my firmware to 2.3.4 By reading the tutorials in youtube [Since i didnt knew about this forum]
The problem is since i flashed..
The mass storage mode is not getting connected.
Any solutions?[Tho i have a memory card reader]
And also if i update to some other ROM there's a step where you have to connect your phone through usb will this create a problem?
Because my mass storage mass is not getting connected?
Click to expand...
Click to collapse
Does your PC have the usb drivers installed??
And on which rom are you??
I think on stock!
but Build number-Gingerbreadxxkpg
Android 2.3.4
The problem is with that ROM itself.
Flash >>THIS<< ROM using ODIN.
It's the official ROM for India having android version 2.3.6
It'll solve the problem.
thankx for the help dude
it is solved.
Now looking for a good rom for galaxy fit..
Try RazoDroid or FitDroid
and err....press the thanks button if i helped you.
check whether u hav istalled USB drivers properly or try flashina new ROM from the android developments section
Install kies my bro it will solve your prob
Sent from my GT-S5670 using Tapatalk
Hello to everyone!
I explain my situation: I have a Nexus S I9020 with cyanogenmod 10.1 installed. It always worked fine till today; I installed Milestone 1 when it was realesed and it was all ok. Then I installed the Milestone 3 update and it worked fine too (also if I'm not 100% sure). Today I wanted to update to RC1 with a clean installation, but when I try to connect phone to my notebook in order to save my backup there I see that the PC doesn't notice the phone and also in the notification bar of the phone does not appear the option to connect the phone. It only recharge itself.
Another strange thing that the phone never do before is that if I put it on charge when it is off, it automatically turn on.
What can I do to solve the situation? I tried to update to RC1 without wiping cache and data but the problem rest.
Thank for answering
I saved my data on PC thanks to wifi so I tried to wipe cache and data but the problem is still here. No one has a solution? I tried also to turn on my phone in download mode and flash it with odin but also in this mode the phone results not connected.....
Hey
I have Nexus S I9020 too
I Dont Had Any Problem With 10.1 RC1 .. Everything Was Fine .. dude Try Another Clean Install
But Last Night I Upgrade To RC2 .. Everything Look Fine .. but When I Connect USB and wanted to use "Turn On USB Storage" Phone Reset :|
Sry For My Bad English .. Anyone For help ?
Neo v 10.1 nightly usb issue
it restarts when i turn on mass storage
---------- Post added at 09:40 AM ---------- Previous post was at 09:05 AM ----------
mmmuntazim said:
it restarts when i turn on mass storage
Click to expand...
Click to collapse
Disable usb debugging then connect. after connection turn it back on :laugh:
+1. It not work with Linux 3.9 + KDE 4.10, I have to mount it under recovery.
I'll try to do a clean install.
Every thing was fine while my nexus s istalled CM10.
But after I install CM10.1 M2,I lost my USB connection.
I get the following when the cable is connected: "USB device not recognized".
I tried on different computers and usb cables then got same "USB device not recognized".
After I google that, They said install an app called "USB Switcher". Open it and clicked change to mass storage
and reboot. Then my computer still said "USB device not recognized".
I found the cyanogenmod official forum. There was a man got same proble. I post my story.
but did not get reply.
I thought it may be a bug with MTP transfer mod.
But I did got more information about that.
I thought it may be a bug for CM10 ,but now I intalled CM10 MOD from CM10 M2 TO RC5. Still got same thing.
So I come here for help.
Thanks in advance for any suggestions.
Hi there mate,
try this method :
http://forum.xda-developers.com/showthread.php?t=1901617
cheers
That did not help.
eytan123 said:
Hi there mate,
try this method :
http://forum.xda-developers.com/showthread.php?t=1901617
cheers
Click to expand...
Click to collapse
Hi there
That did not help.
The problem happened after I upgraded CM10.1 CM2 from CM10.1 CM1.
What I did is that just wiped data,cache and install CM10.1 CM2. Then I lost USB connection.
No Prompt for USB storage when connected to PC
Hi, I notice that i am having a problem since some days that am not getting the prompt for USB storage when connected to my Laptop.
I tried all possible solutions changing cables, mounting SDcard from boot, etc etc and also chnaged back an older update of the current ROM. But nothing seems to work. Please help
Model - Nexus S
Android Version : 4.2.2
Baseband Version: I9020XXKI1
Kernel Version: 3.0.50-Cynogenmod-gb97752e [email protected] #1
Fri Jun 7 19:30:29 IST 2013
CPU ARMv7 Processor Rev 2(v71)
Memory: 396
Avatar ROM Version: 2.14b- 1029 20130607-crespo
Build Date Fri Jun 7 19:22:06 IST 2013
Build Number : cm_crespo-userdebug 4.2.2JDQ39E 1029 dev-keys
Vijay
[email protected] said:
Every thing was fine while my nexus s istalled CM10.
But after I install CM10.1 M2,I lost my USB connection.
I get the following when the cable is connected: "USB device not recognized".
I tried on different computers and usb cables then got same "USB device not recognized".
After I google that, They said install an app called "USB Switcher". Open it and clicked change to mass storage
and reboot. Then my computer still said "USB device not recognized".
I found the cyanogenmod official forum. There was a man got same proble. I post my story.
but did not get reply.
I thought it may be a bug with MTP transfer mod.
But I did got more information about that.
I thought it may be a bug for CM10 ,but now I intalled CM10 MOD from CM10 M2 TO RC5. Still got same thing.
So I come here for help.
Thanks in advance for any suggestions.
Click to expand...
Click to collapse
i son't think it's rom related, i had the same issue with others rom, i asked here but nobody answered me... anyway i found that if you pullout battery then go in recovery fix permission and reboot it starts working again... i think it's some kind of error in the file system, propably the best solution would be to format the partition deleting all data on SD... i'm not able to understand what caused this, one thing i did, but i don't know if it's related, was using LAGFIX and trimming system and data... u can try to mount USB from recovery and see if that works, what recovery are you using ???
kriout said:
i son't think it's rom related, i had the same issue with others rom, i asked here but nobody answered me... anyway i found that if you pullout battery then go in recovery fix permission and reboot it starts working again... i think it's some kind of error in the file system, propably the best solution would be to format the partition deleting all data on SD... i'm not able to understand what caused this, one thing i did, but i don't know if it's related, was using LAGFIX and trimming system and data... u can try to mount USB from recovery and see if that works, what recovery are you using ???
Click to expand...
Click to collapse
My recovery is ClockworkMod Recovery v6.0.3.1
I got a way from cm forum。 They said pullout the battery and hit power button random then it will work。But that didn·t help。
I tried your method fix permissions. reboot... IT`s did not work. I try to recheck the USB DEBUG MODE。 It's reboot ...
after all. Noting changed...
I will backup my phone. And try to repartition .and install the latest CM 10.1.0 http://get.cm/get/8Li .
that one is the last cwm recovery and usb mount doesn't work in that ... try last philz touch recovery u can find it here http://d-h.st/users/philz_touch/?fld_id=16784#files and try again, try mounting usb from recovery and see if it works, try flashing another kernel and fix permission againg, it may works the second or third time maybe ...
How to use this Philz Touch recovery?
Hi Kriout, I am unable to access my phone from my computer for about a week now. Earlier it was working fine. I tried resetting the usb ports by uninstalling and re-installing them. only once myphone (Nexus s I9020) is recognized as an unknown device but Windows 7 unable to update the drivers or find them for this device.
If I want to even go back to stock rom ( I am currently using Avatar ROM 4.2.2(android) ) as i am unable to access my phone via computer.
I tried going back to older updates of Avatar Rom to see if its the ROM which might be the issue, but that didn't work either.
I tried mounting the USB/SD via the bootloader but no use.
Can you help me please?
Vijay
paydy12 said:
Hi Kriout, I am unable to access my phone from my computer for about a week now. Earlier it was working fine. I tried resetting the usb ports by uninstalling and re-installing them. only once myphone (Nexus s I9020) is recognized as an unknown device but Windows 7 unable to update the drivers or find them for this device.
If I want to even go back to stock rom ( I am currently using Avatar ROM 4.2.2(android) ) as i am unable to access my phone via computer.
I tried going back to older updates of Avatar Rom to see if its the ROM which might be the issue, but that didn't work either.
I tried mounting the USB/SD via the bootloader but no use.
Can you help me please?
Vijay
Click to expand...
Click to collapse
- you should first try to understand if it's a driver problem or a smartphone problem, try to mount USB on other pc
- if they doesn't work you should try to mount it in recovery, use TWRP, an old CWM ( in the last one this function doesn't work) or the philz recovery that u find here http://d-h.st/users/philz_touch/?fld_id=16784#files, try to fix permission, wipe cache and dalvik and pullout battery alos several time if it doesn't work. i found out that for me pulling out battery entering recovery fixing permission, shut down, pull out battery entering recovery and mounting USB often worked... you can try also using different kernel,
- my idea is that the problem is an error in the SD file system so propably the best solution could be formatting the unity from the smartphone itself. i still didn't do it but i made a good cleanup of all folder, even the system file and system folder, leaving jjust music photo and download...
- if everything works in recovery but not in the rom, it could be a kernel or a rom problem, so first change the kernel, if doesn't work make a clean install of something else ... i'm using MIUI v5 with marmite 8.7bigmem and for now everything started working again ...
Thanks
kriout said:
- you should first try to understand if it's a driver problem or a smartphone problem, try to mount USB on other pc
- if they doesn't work you should try to mount it in recovery, use TWRP, an old CWM ( in the last one this function doesn't work) or the philz recovery that u find here....... try to fix permission, wipe cache and dalvik and pullout battery alos several time if it doesn't work. i found out that for me pulling out battery entering recovery fixing permission, shut down, pull out battery entering recovery and mounting USB often worked... you can try also using different kernel,
- my idea is that the problem is an error in the SD file system so propably the best solution could be formatting the unity from the smartphone itself. i still didn't do it but i made a good cleanup of all folder, even the system file and system folder, leaving just music photo and download...
- if everything works in recovery but not in the rom, it could be a kernel or a rom problem, so first change the kernel, if doesn't work make a clean install of something else ... i'm using MIUI v5 with marmite 8.7bigmem and for now everything started working again ...
Click to expand...
Click to collapse
Here's what i Did. I did install Philz touch recovery. Its very useful. I also installed the Nexus Root Toolkit (NRT). Using NRT I launched the USBDeview. Using this i removed all the google related drivers from the system. I then restarted my phone is bootloader mode and restarted my system as well. Now my System was trying to install the nexus S drivers but unfortunately it said that the device in disconnected. But then in bootloader mode i put the phone in Mount USB storage mode and VOILA i was able to see all my files. I did take a quick back up . But still in the normal mode i was not getting the USB Storage prompt. Now i went back to the bootloader and did a factory reset. and then installed the Latest Avatar ROM. and now I am able to access the Phone storage through my computer.
I am not sure if i had deleted some files by mistake or some other issue. And thank for referring the Philz Touch Recovery. Its great.
Now am thinking of installing the Stock ROM for NEXUS S back on to my Phone. Do you think its a good Idea?
Thanks for all the help mate.
paydy12 said:
Here's what i Did. I did install Philz touch recovery. Its very useful. I also installed the Nexus Root Toolkit (NRT). Using NRT I launched the USBDeview. Using this i removed all the google related drivers from the system. I then restarted my phone is bootloader mode and restarted my system as well. Now my System was trying to install the nexus S drivers but unfortunately it said that the device in disconnected. But then in bootloader mode i put the phone in Mount USB storage mode and VOILA i was able to see all my files. I did take a quick back up . But still in the normal mode i was not getting the USB Storage prompt. Now i went back to the bootloader and did a factory reset. and then installed the Latest Avatar ROM. and now I am able to access the Phone storage through my computer.
I am not sure if i had deleted some files by mistake or some other issue. And thank for referring the Philz Touch Recovery. Its great.
Now am thinking of installing the Stock ROM for NEXUS S back on to my Phone. Do you think its a good Idea?
Thanks for all the help mate.
Click to expand...
Click to collapse
i don't think the stock rom is the best rom ... it depends on what you need ... by the way what is your data transfer rate ( into the SD )??? me in recovery get a good speed with a lot of spike, it transfer data at 5 mbs with spike of 15 and sometime go to 0 ... when i mount USB on the rom i get an almost constant 1.5 mbs that is reaaaaaaally slow ... if i test the write speed using the phone it returns me a normal speed...
p.s. when u say u mount USB in bootloader, u mean on recovery ?
hi guys this is my problem
i have a pure xl with a damage usb port it only charge but i cant change data from pc
i had it rooted and the problem is i did an update and it get stucked at the recovery screen
it trys to load but it say android screen 2 times and then it goes to recovery and again and again
i already tried wipe cache and wipe fata factory reset but it dosnt happen nothing
ii checked the restore user data and it dosnt delet anything all my files still there
and i download the rom and i tryed to apply update from sd card but it only show me the internal sd card
not the external plase guys i really need help:crying:
help
novody has an answer?
;-;
jelo1 said:
hi guys this is my problem
i have a pure xl with a damage usb port it only charge but i cant change data from pc
i had it rooted and the problem is i did an update and it get stucked at the recovery screen
it trys to load but it say android screen 2 times and then it goes to recovery and again and again
i already tried wipe cache and wipe fata factory reset but it dosnt happen nothing
ii checked the restore user data and it dosnt delet anything all my files still there
and i download the rom and i tryed to apply update from sd card but it only show me the internal sd card
not the external plase guys i really need help:crying:
Click to expand...
Click to collapse
With a damaged usb port, it's hard say... Sorry bro!
jelo1 said:
hi guys this is my problem
i have a pure xl with a damage usb port it only charge but i cant change data from pc
i had it rooted and the problem is i did an update and it get stucked at the recovery screen
it trys to load but it say android screen 2 times and then it goes to recovery and again and again
i already tried wipe cache and wipe fata factory reset but it dosnt happen nothing
ii checked the restore user data and it dosnt delet anything all my files still there
and i download the rom and i tryed to apply update from sd card but it only show me the internal sd card
not the external plase guys i really need help:crying:
Click to expand...
Click to collapse
Try to using another USB cable or another USB port on your computer? It could be worth a shot.
Could you also try to follow this guide and see how far you get? Thanks
finally got the usb port
finally i got a good usb port but how can i load the rom i cant use a sd card only usb port