yashsingh1/xdaforums huggingface dataset:
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
Disclaimer:

I've searched all over the forum and found few close to my problem but this seems different

Background:

I recently flashed my Galaxy S2 International version with CM9 nightly build. Since then, when I turn off the phone and put it for charging, the battery charging animation stays like that till the phone is fully charged unlike the stock ROM where that animation disappears after some time.

Simultaneously I've noticed something else, when my phone is plugged to USB cable attached to my computer, a pop up appears at the bottom right (notification area) which says "USB Device not recognized" and in Device Manager it's listed as "Unknown Device"

I ignored it thinking that it might be an issue with the CM9 Build as it's not fully functional. I've had the phone that way for around 10 days.

Recently I thought of switching to XXLPQ(Official ICS Update) and I got into Download Mode but Odin doesn't see the phone. No "communication" establishing between phone and computer.

I also had CM7.1 on SD Card and I thought flashing that old CM might bring my USB functionality back.

So got into ClockWork Mod Recovery and flashed it. Flash was successful. But now phone is in boot loop with "Samsung Galaxy S2" with an exclamation.

If I try to press and hold the power button, it comes back to that battery charging screen even though phone is not plugged to either USB or charger.

I can get into download mode(Odin can't see the phone) but not into Recovery Mode.

Three things that I see as of now on my phone are the boot loop I mentioned above or Download Mode (but not recognized by Odin) or Battery Charging animation.

I'm sure there's nothing wrong with USB Cables or Drivers or Kies or anything else. Because my brother's S2 works just fine which is on "Stock ROM".

I need help. I'm sure that CM9 nightly broke that basic USB Device functions on the phone.

Please let me know if there is any alternative for recovering my S2. I know that the worst is, it goes to Repair Center.

But I hate to give up on this!!

Are there any other tools or recovery softwares which can be used to re-flash the phone other than Odin no matter what screwed up state the phone is in!?
[Galaxy S II Q&A, Help & Troubleshooting] B3311:
Deleted - sorry, hadn't read your post properly.
[Galaxy S II Q&A, Help & Troubleshooting] warrez:
firstly i want to ask does your phone charges? if it does it sounds like u dont have development option enabled.. or ur usb port is broken.. if it doesnt charges then im pretty sure ur usb port is broken...

about the recovery.. can u use ur SD card on ur brother's SG2 and put stock rom into it? and then insert it into ur SG2 and try flashing it throught CWM
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
Thanks for the response Warrez!

- Phone charges (but that battery charging logo stays like that)

- When I flashed CM9 nightly I'm sure I haven't checked or played with Development option (It's not enabled)

- And last, I'm not able to get into Recovery Mode as well (already mentioned above)

Any other inputs!?
[Galaxy S II Q&A, Help & Troubleshooting] trell959:
I have the EXACT same problem
[Galaxy S II Q&A, Help & Troubleshooting] f1ux:
Me too exact same problem .

I've confirmed my setup is fine as it works with Odin for my tab 7.7

Exact same issue, stuck at Samsung logo with exclamation mark. Can't get into recovery, can get into download but computer says device not recognised .

I was running Slim ics at the time then about to switch to cm9 and siyah kernel
[Galaxy S II Q&A, Help & Troubleshooting] trell959:
I was using Siyah kernel too. hmmm
[Galaxy S II Q&A, Help & Troubleshooting] f1ux:
It doesnt look good :(
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
Well.. I made some progress in last few days! I've taken out the battery and got into Download Mode. I was holding buttons and my brother inserted the battery. What I did was I powered of the system and connected the phone while it was in "Download Mode". I waited for some time.. Say more than 3-4 mins.

Rebooted my PC and once it's back it wasn't saying anything. For my surprise I see the "Yellow COM" established in Modem. Without delay I grabbed recovery ROM which is posted in one of the sticky threads. Flashed the phone.

Now, it got little interesting! When the phone is booted back post flashing it shows that "MTP Device" even though USB Cable isn't plugged into it!

When I turn off the phone, it either reboots back without hesitation or ends up at "big green battery charging" animation!

To get back into OS, I have to get into recovery mode and then I use "Reboot System"! :(

And that "USB Device malfunctioned or not recognized" thing is intermittent.

At times it says that and at times it establishes "COM connection" in Odin.

I re-flashed old bootloader thinking that it might be a phone's basic operating driver issue. But that didn't solve the issue!:confused:

I've even flashed latest stock European ICS Firmware.

And with ICS, things got even more interesting!

It started throwing up new message "Charging Paused due to over voltage":eek:

What I'm sure of is.. It's definitely got to do with CM9 ICS. Because when I was on beta official ICS before I switched to CM9 Nightly phone was working like a charm! As soon as I flashed CM9 Nightly, I started getting that "USB Device Not recognized" issue with the battery irregularities.

I wasn't sure how I could get the phone recognized in Odin. Hastily I flashed CM7.1 on CM9 compatible ClockWorkMod Recovery enabled Kernel. That is when the problem got more complicated!!
[Galaxy S II Q&A, Help & Troubleshooting] f1ux:
I'm about to give up and pay someone to fix it via Jtag.

I've tried several computers, several cables , multiple reboots and everything else.

Windows just still says usb device not recognized so the phone must be corrupted somewhere.
[Galaxy S II Q&A, Help & Troubleshooting] naved978:
Please change ur USB cable, i had this problem n its only frm the cable.
[Galaxy S II Q&A, Help & Troubleshooting] f1ux:
I don't believe this.........

I had tried two other cables ( a nokia usb>micro usb and another one ) as i had lost my samsung usb>micro usb lead and both those said unrecognised device....

I had just given up, ordered a jtag repair and then my old dear finds the samsung cable!!!!

Bizarely it now recognises the phone.
[Galaxy S II Q&A, Help & Troubleshooting] lenny74:
Hi Guys

I am having the exact same problem and am still looking for a solution.

My phone is not recognised by the PC after installing CM9 Nightly and now I am stuck until I can get the device driver installed again so that I can use Odin.

I am using the official Samsung USB cable which worked fine until the CM9 flash.

I am assuming this is a common problem so am hoping that somebody can supply a fix asap.

Any help will be appreciated

Ta
[Galaxy S II Q&A, Help & Troubleshooting] basim9955:
I had the almost the same problem .. I took it to the place I bought from .. and fix it .. they told me it was a hardware problem ( I remember with the hard disk .. I forgot )
[Galaxy S II Q&A, Help & Troubleshooting] MAJED.y:
The same thing, after using the Custom ICS LPQ roms!!

Now there's no way i can't use Odin to flash official rom! :mad:
[Galaxy S II Q&A, Help & Troubleshooting] lenny74:
Hey Guys

Check the link

http://forum.cyanogenmod.com/topic/44994-cm9-20120320-usb-mtp-device-not-installing/

Fingers crossed

---------- Post added at 02:37 PM ---------- Previous post was at 02:33 PM ----------

Has worked for me
[Galaxy S II Q&A, Help & Troubleshooting] trell959:
Finger crossed:eek:
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
Last time I checked.. My phone is getting detected in Odin. But not always! Every 5 attempts it sure is seen by Odin 2-3 times. And it's on ICS 4.0.3 XXLPQ with "Charging Paused high voltage detected" message even though it's not plugged to charger or USB Cable.

My brother advised me to leave the phone that way and wait till it goes dead and then keep it dead for at least a week and then try charging it fresh with phone's stock charger. Now 5 days passed and I'm waiting for another 2 days to try this out!

Cheers,

A.
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
Gee.. :eek: Try this! Take the battery out of the phone and press the power button for few secs with the battery out. Take someones help to put the battery back while you are holding the download mode button combination.

When you get into download mode, leave the phone that way and do not plug it to the USB Cable. Power off the PC and wait of 3 mins. Now connect the phone to the USB Cable while the PC is still off and phone is in Download mode.

Turn the PC on and wait for till it reaches desktop and then give it 3-4 mins. Now launch Odin. If you have any luck you should see that "yellow COM"!

The same procedure worked for me! If you happen to see that "yellow COM" on Odin don't delay anymore. Just flash any stock ROM. 2.3.6 or 4.0.3!

P.S.

Odin may not see the phone on the first attempt. If so.. Repeat the steps for 2-3 times

All the best!

Cheers,

A.
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
You could try the same instructions that I posted to lenny74!

Cheers,

A.
[Galaxy S II Q&A, Help & Troubleshooting] arunk.chowdhary:
Another recent development in my story is.. I tried recreating the scenario that I was in.

Initially when I was on CM9 with screwed up USB functionality I tried flashing CM7.1 back to get it. That ended up with boot loop and no USB detection neither in Odin nor in PC.

After a painful tries and landed on ICS XXLPQ with that "high voltage" error.

Last night I flashed my phone with XWKI4 2.3.6 firmware and then flashed CF-Root ClockWork Recovery Kernel for the same firmware.

I already had CM7.1 on my SDCard. So I wiped Dalvik Cache, Cache, System and performed Factory Data Reset and installed the CM7.1. Installation was successful and rebooted the phone. I had the same boot loop again. It won't go into Recovery Mode or OS but it can get into Download Mode. Or else it sits on Battery Charging animation.

This time, luckily it got detected in Odin in download mode. I immediately flashed CF-Root Kernel and tried wiping all the stuff and installed CM7.1 again. This time I repeated the steps twice and flashed ROM update twice too.. Same boot loop with no OS or Recovery!

From this, my understanding is.. CM7.1 nailed my phone! If I can get the CM7.1 working on my phone then that erratic USB behavior should be gone! Because there is something that's not happening right since the beginning with CM7.1 flash!

Any ideas..

A.
[Galaxy S II Q&A, Help & Troubleshooting] himeer:
I had the same problem: Samsung Galaxy S2 after connection "USB Device Not Recognize" on different computers, operating systems, cables (original samsung and non-original .

What helped me?

Just clean microstick hole with, toothbrush. Easy as that.
[Galaxy S II Q&A, Help & Troubleshooting] shkoks:
i have almost the same issue ..

am on resurrection remix isc v 1.3

and have the problem since turned from GB 2.3.6 to remix v 1.0

the different is that the rom is working well..recovery and download mode...but pc says that usb not recognized and keep charging .

cant read my s2 as usb, connect via odin and sure cant connect via kies.... so am stuck with isc and can change rom only via recovery but never odin..

knowing that have my wife s2 running GB and connect perfectly via same pc and cable

any ideas
[Galaxy S II Q&A, Help & Troubleshooting] chr22:
Solutions/suggestions

Any developments?

I have the same problems, and it's really frustrating!
[Galaxy S II Q&A, Help & Troubleshooting] ctomgee:
I suggest you read the post two posts above yours.
[Galaxy S II Q&A, Help & Troubleshooting] billnotben:
I think some of these problems must relate to the connectors. Recently I was having problems charging my Xperia Ray. Got a new Sony cable and it was fine.

Looking at the cable ends you could see that a couple of the pins weren't springing up as high as on the new one.

Point is with these android phones the cables get used to death after several months or less and as the post above said this also introduces a dirt problem.

weak/worn springs and dirt = problems
[Galaxy S II Q&A, Help & Troubleshooting] chr22:
I have tried to clean the microusb hole and with different computers and different cables.

still the same situation: usb not recognised, says it is charging even though it isn't connected and that the voltage is too high.

And the charging icon is even there then the phone is off.

It all started after i flashed CM9. I am now on stock samsung rom and still the same problems :(
[Galaxy S II Q&A, Help & Troubleshooting] Leonhard:
I had the same problem under windows 7 ultimate x64

Try this!

Connect your phone go to windows update and check for updates!

You should find the updated drivers in the optional updates

Hope it helps!
[Galaxy S II Q&A, Help & Troubleshooting] ctomgee:
Then your port is likely busted.
[Galaxy S II Q&A, Help & Troubleshooting] JoshS2:
I had this problem everyone. I was lucky enough to manage to flash a stock ROM, so I could send it off and get it fixed under warranty.

My advice is to clean the USB port, and keep connecting it and reconnecting it and if you're lucky eventually ODIN will recognise it! Then flash a recovery package and get it sent off!
[Galaxy S II Q&A, Help & Troubleshooting] chr22:
#30 A USB connection isn't need due to "mobile odin", avaliable at the play store.

I have now solved my problems by cleaning the USB hole once again, only this time more thorough. I used a small screwdriver with some paper roll wrapped around it, so i could get all the way in.

So thank you very much guys :)
[Galaxy S II Q&A, Help & Troubleshooting] charlesdg:
Hello,

I have the same problem as everybody:

Kies doesn't recognise my gsII

Unknow USB Device in Device Manager

adb devices doesn't find the phone: error: devices not found.

I try some solutions like the *#7284# solutions or clean the usb hole. Try on different pc and also on mac. Try different cables...

I'm on the official ROM 4.0.3.

I don't know what I can do more. My objective is to install CM9 on it!

Thanks for your support.
[Galaxy S II Q&A, Help & Troubleshooting] ctomgee:
Sounds like you just need to install drivers.
[Galaxy S II Q&A, Help & Troubleshooting] charlesdg:
I thought that the drivers was installed with kies, isn't?
[Galaxy S II Q&A, Help & Troubleshooting] ctomgee:
Generally they are. Sorry, missed the Kies part of your post. Does your phone react when you plug it into usb? Maybe the port is dirty or busted.
[Galaxy S II Q&A, Help & Troubleshooting] charlesdg:
yes, there is a sound when I plug into the pc. In the devices manager, the device is there but Unknown.

PS: I just tried to install drivers without Kies. Didn't work!
[Galaxy S II Q&A, Help & Troubleshooting] ctomgee:
Try cleaning the port. Barring that, I'm not sure what else you could do.
[Galaxy S II Q&A, Help & Troubleshooting] [Orb]:
I fixed it this way:

Ok I got it fixed, thanks to this thread,but their where some oddities:

first windows said "unkown device",

cleaning the usb port changed this to "unkown android device"

I used the driver from the android sdk (google android sdk, in the android sdk manager, categorie 'extra' you can download the usb drivers)

then you probably first need to edit the driver unless you have a google phone.

so first get your harware id's >> device manager >> android device >> properties >> details >> hardware id's >> copy these and

and then edit the driver and add your phone

C:\Program Files (x86)\Android\android-sdk\ extras\google\usb_driver\android_winusb.inf

in my case:

; SAMSUNG GALAXY S2 OFF (original harware id)

%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_6860&REV_0226

%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_6860&

; SAMSUNG GALAXY S2 ON (booted in cm9)

%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_685E&REV_0226&MI_01

%CompositeAdbInterface% = USB_Install, USB\VID_04E8&PID_685E&MI_01

But I notices one really strange thing, when my phone is off it has an other hardware then when its booted in cm9.

So I added them both to the driver. And it works perfercly for me in windows and Eclipse.
[Galaxy S II Q&A, Help & Troubleshooting] Slotharoony:
I fixed it an even easier way

I downloaded a new rom on my phone and flashed it the usual way, format, wipe cache & dalvik cache

Installed everything, plugged USB in and now picks up fine!

I think it must have been a kernel problem or ROM version since I was on Paranoid Android 1.5 with Dark Knight 1.6 and now on Paranoid Android 1.6a with it's own kernel

Madness!
[Galaxy S II Q&A, Help & Troubleshooting] Vylle:
having similar problems as mentioned.. i uninstalled touchwiz using Titanium backup and when my phone rebooted the screen would remain black. can only get into download mode and picking up unrecognized device

tried the advice given and wasnt working at all.. tried rebooting computer with phone in download mode then connected and not working, i tried reinstalling the drivers and wont work at all

need some solid advice.. thank you

heres some more information

when attempting to boot my phone normally or going into recovery mode - i get a black screen - HOWEVER, if i happen to connect to a PC when its like this the pc actually picks it up the samsung usb drivers, and MTP mounts the SD cards for my phone, im even able to use droid explorer to browse my system files!

im thinking my problem is limited to ODIN - for some reason, it will not pick up my phone at all - the version of ODIN im using is 1.85 - is there a more up to date one that has a better chance of working?
[Galaxy S II Q&A, Help & Troubleshooting] fliptechnologies:
i have a very simular issue at the moment

started 2 nights ago, phone would not charge via usb or power, nor would pc see it.

a reboot fixed this

now today, will charge via usb, yet pc wont see it.

have uninstalled keis and the samsung usb drivers and rebooted twice

re-installed the drivers, and same result chagre but not seen.

adb devices shows nothing as well

too add to this, auto rotation even though its off, and auto speaker on calls

any clues on this one?

EDIT: galaxys2 4g 9210T
[Galaxy S II Q&A, Help & Troubleshooting] ravibc:
I powered the phone off, and back on again, plugged it into the computer, and it started working again! (oldest trick in the book, and still going strong!!)

:o
[Galaxy S II Q&A, Help & Troubleshooting] l katt l:
I'm having similar issues to everyone else.

t989d on Telus, non routed. Ive upgraded from gingerbread to ice cream sandwhich 4.0.3 via kies

Biggest issue is USB device not detected when attempting to connect to pc. Uninstalled/reinstalled kies and drivers multiple times with no success. Running Windows 7 64b pro. I can still connect to kies over wifi. My phone will only charge when connected to a pc. Debug mode has no effect. No notification comes on the phone to connect to kies / pc

Charging issue: Often, my phone will not recognize a power source, pc or with the wall plug in, without a little dance. Turn off the phone, rip out the battery, plug the phone in until it vibrates and put the battery in. Charges just fine after that. Also, when selecting Power Off, the phone will Reboot instead. Phone turns on as soon as the battery is placed back inside the phone before pressing the power button. Makes it hard to charge with the phone in the off position, that usually happens by chance or fluke.

Clock / Home screen button issue: Home button is not returning to home, instead going to the Clock application, specifically a home screen of sorts. It has 4 apps icon spots i can configure along the bottom in its settings menu, options for time and weather, an x button out which brings you back to the previous page you were on and not the regular home screen. the only way to get rid of it is reboot or power off. power off has been more effective or at least it feels that way, i dont know. it comes back seemingly at random though.

Calls answered in speakerphone: Resolved this one with help from online. inSettings> language and input >Voice Recognizer, change goggle to Samsung powered by Vlingo, then select the option right below it Voice Search. you will need to accept a samsung disclaimer if youve not done this already and agree to the terms of service from Vlingo. Once into the Vlingo menu options, go into Voice Talk Settings and uncheck Auto Start Speakerphone. if you hate vlingo as i do, take the time to uncheck everything else like wake up command . you can then go back to google voice recognizer and not have it answer on speaker phone.

Ive tried cleaning my usb with a toothbrush, different usb cords, different computers (all win 7, though), factory reset, and cursing

Anyway, help?
[Galaxy S II Q&A, Help & Troubleshooting] alcaet:
Same here,

Not recognized

Noticed it goes into car mode on and off on and off while i charge it in the car.

Lose all signal and have to turn off and on to get signal again.

Any help would be cool.
[Galaxy S II Q&A, Help & Troubleshooting] kuleee:
I've read many threads, tried every advice, but phone still isn't reacting to anything. So my problem is that phone couldn't connect to a computer, well it connects but it states "USB device not recognized", it charges but that's all. Everything started with Custom ROM SuperNexus. I've done these steps so far:

1. Reformatted my computer OS, which is Windows 7 Ultimate x64, along with Kies, drivers and stuff

2. Downloaded CM10 over my phone, get into recovery --> factory reset, wipe cache, wipe dalvik, format system, install ROM, wipe cache, wipe factory

3. I tried on my computer, tried on my old computer with Win XP x86

4. My friend's Galaxy S2 is working like a charm with MY cable on MY computer, which makes me believe that there is some defectiveness in my phone

5. I tried cleaning MicroUSB port with tooth pick, ear-cleaning pick (or how do you call it), needle with some paper wrapped around it, tried blowing in it

6. I tried with different USB ports, front ones, USB 3.0 - still no luck

7. I tried flashing Wanamlite and Neat ROM-s, still the same problem

I'm using Airdroid now, but i really need to know what's the problem! I have already ordered a new parts on E-Bay and I'm having high hopes about that solution. Im not able to post link to E-bay item, but search it under Item Number: 150904945773. Any other advice is really highly appreciable. Thank you
[Galaxy S II Q&A, Help & Troubleshooting] alcaet:
Hi dude

I did something that kinda worked.

Actually clean the usb, but dry cleaning didnt work.

I removed battery cover, took screws out, and removed back casing.

And with a toothbrush and alcohol y cleaned the usb, then hairdry the phone and now my phone gets recognized by computer.

Bad thing is i still have the phone thinking its charging all the time.

So i think its a bad usb, might need to change it.

Hope it works.
[Galaxy S II Q&A, Help & Troubleshooting] kuleee:
I have fixed my problem with Mobile Odin. Check my posts here!

http://xdaforums.com/showthread.php?p=33053123#post33053123
[Galaxy S II Q&A, Help & Troubleshooting] komanguy:
I have this problem too.

I notice definitely that it is due to bad contact between the usb cable and the micro usb connector.

to solve it I'm forced to hold the phone by the end of the cable (the phone doesn't lie on anything; it is held by the end of the cable only);
[Galaxy S II Q&A, Help & Troubleshooting] manpreetsingh46:
To fix this you need to use the Kies software and then boot your phone in Samsung recovery now ( turn off the phone now press middle button + -ve volume key +power button) go to "tools" in Kies software then select "Firmware upgrade and initialization" wait for 30 sec and then disconnect the phone and restart the phone by keeping the power button pressed for 5 seconds till the phone restarts. once the phone comes back up connect the phone to the USB cable and it should work.

Note: This issue happened when i tried to upgarde my rooted phone from 4.0.3 to 4.0.4 and it got stuck at 99%.

Please let me know if the post helped any one else