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[Q] Accessing USB

i just received my micro usb OTG cable. When I connects the USB thumb drive to my Xoom, i cannot see the content of the USB thumb from Astro or es file explorer.
Can anyone help? thanks.

are you doing anything to mount the drive?

i need to mount? I thought with 3.1, it will auto detects my usb thumb drive. Any idea how to do it? thanks.

yiyehhu said:
i need to mount? I thought with 3.1, it will auto detects my usb thumb drive. Any idea how to do it? thanks.
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same for me , i can hot swap usb mouse / xbox360 controller many times , 1'st time I connect a usb flash drive I can see contents it in astro , disconnect & re-connect no contents untill I restart ???
does tiamat 1.4.2 support hotswapping of usb drives ??

Lots of these topics floating around. All looks the same after u connect a file/drive u have to reboot. Kinda sucks. Mice/controllers/keyboard not effected. I wish a dev would pop in and just say yes u have to reboot all the time or there can be a solution or something.
Sent from my Xoom using XDA App

Are you sure you got an host cable? Do any other devices work with it? Like a mouse or controller.
Sent from my HTC HD2

Drives over OTG are indeed hotswapable. I do it all the time.

bigrushdog said:
Drives over OTG are indeed hotswapable. I do it all the time.
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first let me say thankyou brd , every mod I have done has come from your posts.
I am quite diligent and read everything I can before I flash or mod and even post in the forum , but , is there something I could have missed that causes me problems hotswapping usb drives , I am at a loss . .
thanks

Just an update on the need to reboot to access usbOTG. I got my official USB adapter today from Motorola. I have hot swapped 5 different drivers and sticks and it reads every time. Even my 250gb WD portable hard drive.
Sent from my Xoom using XDA App

hoola20055 said:
Just an update on the need to reboot to access usbOTG. I got my official USB adapter today from Motorola. I have hot swapped 5 different drivers and sticks and it reads every time. Even my 250gb WD portable hard drive.
Sent from my Xoom using XDA App
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@ hoola
so did you have a grey otg cable and got the same results as others and I have got , and now you have the official host cable as is well ? am I correct ?
also exactly what are you running , and the route you took to get there , i.e. my route was
uk 3.01 , one click, tiamat as they came out untill 1.4.0 > BRD's cwm flashed 3.1 update > tiamat 1.6ghz with usbmass storage (thats not working too well for me)
thanks

I had a grey/clear generic cAble. I rooted using another method on another site then *redid* it using brd method . I just tried using the generic cAble and it does not read after first swap until reboot. With moto cable it sees all devices . I switched out like 20 times in a row with 5 or so devices (USB , external, USB card reader, few sticks) and it reads every time.
Sent from my Xoom using XDA App

hoola20055 said:
I had a grey/clear generic cAble. I rooted using another method on another site then *redid* it using brd method . I just tried using the generic cAble and it does not read after first swap until reboot. With moto cable it sees all devices . I switched out like 20 times in a row with 5 or so devices (USB , external, USB card reader, few sticks) and it reads every time.
Sent from my Xoom using XDA App
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Thank's hoola , have spent hours reading this and another forum just to get that info ,looks like i have found my problem , i need a "proper" otg cable (-:

Unable to mount USB to play MP3's in car radio

this is probably a dumb question, but i need to ask.
i'm not able to play MP3's via USB on my car radio. the phone says USB is mounted, but the radio won't recognize it. i am able to do this same method without any issues with my MyTouch 4G and my car radio will play the MP3's from the phone.
i'm guessing my problem is because both the internal and SD cards are trying to mount and my radio doesn't know what to do...? i know with the MyTouch 4G, it only mounted the SD card since there was no internal drive to even mount.
i'm tried this on MIUI 1.8.12, Trigger, Weapon G2x, and EaglesBlood 2.3.5, but have not had any success.
is there any way around this?

That's weird, I'm having the opposite problem, the car knows that there's something on the USB but the phone just ignores it, never shows the notification for me to mount the USB as storage.
My iPhone worked perfectly.

The problem is drivers.. sorry guys but even with cm7 installed in order to mount the SD card and internal storage to the PC u have to have the LG drivers installed.. HTC doesn't require proprietary drivers for theirs.. it sucks cause I used to do the same thing.. now I use aux input from the headphone Jack.. doesn't sound nearly as good as letting my head unit read the mp3s..
Sent from my LG-P999 using XDA Premium App

squish099 said:
The problem is drivers.. sorry guys but even with cm7 installed in order to mount the SD card and internal storage to the PC u have to have the LG drivers installed.. HTC doesn't require proprietary drivers for theirs.. it sucks cause I used to do the same thing.. now I use aux input from the headphone Jack.. doesn't sound nearly as good as letting my head unit read the mp3s..
Sent from my LG-P999 using XDA Premium App
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So what you're saying is that I would have to install LG drivers to my car stereo, right? If that would be even possible.

That would be the only solution I know of.. but I don't think its possible..
Sent from my LG-P999 using XDA Premium App

That's ridiculous. So basically I paid more in my brand new car in order to have wheel-mounted controls and MP3 folder navigation for nothing. Ugh!!!

I just want to update this post because I think I found a solution, and would like to help if anybody out there is experiencing the same problem as I am.
I was initially using 2.3.5, and due to the lack of A2DP I downgraded to 2.3.3 yesterday. It seems that in 2.3.5 the checkbox "use as mass storage only" was taken off from the "Storage" section under "Settings". As soon as it was available on my phone and I checked that, the phone recognized the connection with the car and asked me to mount the USB drive, and voilà, my car started playing my MP3s.
I always thought it was weird that everybody talked about this menu option but my phone didn't have it, and nobody mentioned that it was taken away.

Hmm guess I'll have to try that also..
Sent from my LG-P999 using xda premium

MrBriggs said:
That's ridiculous. So basically I paid more in my brand new car in order to have wheel-mounted controls and MP3 folder navigation for nothing. Ugh!!!
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Not for nothing...just buy yourself a cheap USB thumb drive (8, 16GB, whatever) and fill that baby up! Attach to car stereo, and you're done.
Way easier than getting your phone out and hooking it up every time you get in the car anyway...

squish099 said:
Hmm guess I'll have to try that also..
Sent from my LG-P999 using xda premium
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Scratch that. It worked once, never again. The USB notification shows up but the car says "error".
I'm done with this crap.

I came across this thread while trying figure out the same thing - connecting g2x on my car's usb in. I am on ICS (CM9), but everytime I try to connect in UMS mode, my phone stops detecting usb altogether. If I choose MTP, stereo detects usb, but doesn't play anything.
Is this a deadend or do you guys have a way around it which is being discussed elsewhere?

gg84 said:
I came across this thread while trying figure out the same thing - connecting g2x on my car's usb in. I am on ICS (CM9), but everytime I try to connect in UMS mode, my phone stops detecting usb altogether. If I choose MTP, stereo detects usb, but doesn't play anything.
Is this a deadend or do you guys have a way around it which is being discussed elsewhere?
Click to expand...
Click to collapse
What kernel are you using? Stock CM kernel doesn't support UMS. Try Harsh or Jarvis
Sent from my LG-P999 using xda premium

[Q] eaglesblood/cm 7 question

does ealglesblood have the same computer not able to see the external micro usb card when you plug it into the computer that cm has? i love cm but this problem is getting eralyl annoying. the other side is, does anyone have a solution to this cm 7 issue? ive searched the forums and either missed the answer, or no one has asked this question. thanks for any help

Azuske said:
PTP allows you to connect your phone to the PC or Mac without unmounting the storage from the phone and mounting it to the PC. That way you can exchange files between your PC and storage device while still listening to music or looking at pictures on your phone. USB Mass Storage forces the phone to unmount the storage from the phone (stopping all music and photos as well as all the other files on your Internal Storage or SD Card) and mounting it directly to the PC.
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I don't think it's an "issue", per say.

yeah, that doesnt really help. but if there is a better explanation or a fix would be better.

Well, did you have a rom where it wasn't like that?
I'd suggest flashing that.
I may have misunderstood your problem, but I think I know what you're talking about now. Since Eaglesblood is based on CM7 source, I'd say yes, it does have the same problem.
I usually just mounted the SD card in recovery. Can't say I've seen a fix.

I'm on eaglesblood 2.5 and I can get both emmc and external sdcard to mount just fine, make sure your USB driver is properly installed.
Never had that problem either on cm7, only stock roms...
Sent from my LG-P999 using xda premium

yeah i had cm7 on my mytouch 4g and it worked fine. i was really surprised that it didnt work with this phone. its odd. i did install the latest version of eaglesblood and my computer does see both the internal and external micro sd. so ill stick with eaglesblood for a few and see how i like it. on the up side, my gps locks on almost instantly with this rom

one more question i guess. does the lg camera work with eaglesblood?

As far as I know it only works for OTA gb roms, so no it won't.
Sent from my LG-P999 using xda premium

USB Storage can't be turned on

So I got an incident with my phone, if you wanna now about it, its at my sig, but the thing is that I dunno why or how, sometimes my computer does recognizes my phone and display the Turn on USB storage option at the notification bar, but each time I try to turn it on it just wont work. Attached is a logcat whenI try to enable it, maybe someone could tell me why it wont work.

What rom are you running for those off that are on the xda application?
Sent from my LG-P999 using xda premium

Normally I got two nandroids a GB based one and an ICS based one, right now Im using both Eagle's Blood 2.3.7 v2.8 and ICS 4.0.3 Build 1. But I had this problem since... always. I'm a flashaholic so i have tested actually every rom from stock 2.2.2 to beta 4.0.3... I even have a nandroid of my original ROM (the one that came with it when y bought it and rooted it) and not even there works. The only clue i have right now is that only if I disable USB debugging it will randomly connect.

This may sound dumb but have you tried a different usb cable? I had the same problem and tried my girls and my phone was able to connect each and every time. another thing I noticed with my phone is that it sometimes won't connect using windows 7...xp no problem but 7 it plays hard to get.
Sent from my LG-P999 using XDA

No man, doesn't sounds dumb, actually if you read the "issue" background on my sig, you'll notice that I have made all those steps... its not a big deal, there are SDCard Readers and the bluetooth but... itw not the same.
Sent from my LG-P999

Ok but my bad I can't see your sig since I use the app most of the time. Yea its not the same
Sent from my LG-P999 using XDA

Holy Mother of God! I did it! In one of those "random" times my comptuter recognized my phone I just pulled out the batt unplug/plug again the cable, keeping both vol buttons pressed and it reconginzed the APX decive! Then all I had to do was NVFlash again, restore the stock 2.2.2 Nandroid i had somewhere and play a bit with the USB mount/debbug options, flashed both storages (using gparted for the microSD) and it works! Now have to restore everything to my SD and reflash latest cm7...

Nice!
Sent from my LG-P999 using XDA

Talked too early, if. I restore my nandroid the issue continues... -_____- Gonna try doing everything again...
Sent from my LG-P999

Did you ever figure this out? Sounds like your having the same problem that i am.
I've tried at least 6 different cables, home PC, work PC, laptop and a co-worker's PC that didn't have anything vmware installed (had a hunch that vmware usb drivers were the cause). Oh, all the computers were win7x64.
I've only rooted my phone and upgraded to 2.3.3 so nothing crazy going on there and it's worked for months since i did both of those.
I have a feeling that this may have been a recent windows update, but no clue when or which one because i haven't really cared that it didn't work. If i had to guess i'd say mine stopped working about 3 months ago... again, hard to remember.

CaptMorganz said:
Did you ever figure this out? Sounds like your having the same problem that i am.
I've tried at least 6 different cables, home PC, work PC, laptop and a co-worker's PC that didn't have anything vmware installed (had a hunch that vmware usb drivers were the cause). Oh, all the computers were win7x64.
I've only rooted my phone and upgraded to 2.3.3 so nothing crazy going on there and it's worked for months since i did both of those.
I have a feeling that this may have been a recent windows update, but no clue when or which one because i haven't really cared that it didn't work. If i had to guess i'd say mine stopped working about 3 months ago... again, hard to remember.
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Make sure usb debugging is turned off.
Plug in the phone, enable usb storage.
Right click on the phone drives in the explorer and click on eject.
Turn off usb storage.
Unplug and plug in again.
Enable usb storage.
Drives should work now.
This did it for me. Since then if I remember to eject before unplug I haven't seen any issues.
Sent from my LG-P999 using XDA

Thanks for the reply, I'll give that a shot.
Curious though, when yours was having problems, did windows detect anything? For instance, when I plugged mine into my co-workers pc there are zero pop ups about new hardware detected.
Sent from my LG-P999 using XDA

I had the same problem. Dirt in the mini-USB port can cause that problem.
Take a can of compressed air and blow it into the mini-USB port (blowing with your mouth isn't enough). Also, take a close look at the port with a magnifying glass and look for any dirt or discoloration in there.
Do the same with your cable.

Not working after install RemICS 1.3.2
EEngineer said:
I had the same problem. Dirt in the mini-USB port can cause that problem.
Take a can of compressed air and blow it into the mini-USB port (blowing with your mouth isn't enough). Also, take a close look at the port with a magnifying glass and look for any dirt or discoloration in there.
Do the same with your cable.
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Click to collapse
Hi, this problem occur to me after I've installed RemICS 1.3.2 ROM (CM9 based), I did follow the installation steps from beginning, when the problem occur, I did re-flash the same ROM several times, but this problem still unsolved.
I did try all recommendations (blow out dirt, disable usb debugging etc) but still not success.
This ROM should able to detect USB when phone connected with PC, but somehow I don't know why. Any experts recommendation?
________________________________________________________________________________________________________________
Ok, I just found the problem. I can hear now the tone of PC detected USB when plugged-in, and I update the driver. then Voila!!
Thanks All..

Try wifi file explorer gives you the ability of seeing your sd card through your ip address you'll find it on the play store
sent on my Evil Evo running the so called developers kernel

Hey, just thought I'd register an account because I stumbled upon this thread because I had the same issue verbatim and I managed to get it working.
I ended up using the USB 3.0 ports on my desktop and suddenly it picks up my g2x without fail everytime. With that said, I'm lead to believe that perhaps its an issue of power. Maybe the USB 2.0 ports you're using simply aren't providing enough power. Not sure what its worth or if my issue was something unrelated but maybe that bit of information is something to work with. =)

Found another solution that fixed the problem for me.
If you are using Windows XP, log on as an Administrator and open Device Manager
Select View > Show Hidden Devices
Scroll down to Storage Volumes, and expand
Right-click on each entry and select Update Driver.
This fixed the problem for me!

[Q] Computer Doesn't Recognize Phone but it's charging

So I want to take the pictures off my phone and add some files to the sd card from my computer on my new S3.
I have installed the drivers (but not Kies) and when I plug in my phone, the phone beeps and starts charging but it doesn't show up on My Computer. On my old Rezound, I would get an option to charge only or data but it's not showing up on the S3.
Is there anything special I have to install for my computer to recognize the phone except for the drivers?
changed the cable, from my old one to the Samsung one and it now works

illyfilly said:
So I want to take the pictures off my phone and add some files to the sd card from my computer on my new S3.
I have installed the drivers (but not Kies) and when I plug in my phone, the phone beeps and starts charging but it doesn't show up on My Computer. On my old Rezound, I would get an option to charge only or data but it's not showing up on the S3.
Is there anything special I have to install for my computer to recognize the phone except for the drivers?
changed the cable, from my old one to the Samsung one and it now works
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Does your kernel support USB fast charge? If so, it may be enabled.
Sent from my SCH-I535 using Tapatalk 2

If it's not the fast charging issue as mentioned above, its most likely your base OS. I was having mounting issues as well, especially on my Mac. The latest K1 JB leak fixed it. I believe the ICS HE release also fixes it.

bradys said:
If it's not the fast charging issue as mentioned above, its most likely your base OS. I was having mounting issues as well, especially on my Mac. The latest K1 JB leak fixed it. I believe the ICS HE release also fixes it.
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Chyrux said:
Does your kernel support USB fast charge? If so, it may be enabled.
Sent from my SCH-I535 using Tapatalk 2
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Thanks guys but for some reason the phone didn't want to use my old micro usb cable.
Sent from my SCH-I535 using Tapatalk 2