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...

I9001 not recognized by ODIN

I apologize if thread is already posted.
I tried to flash my i9001 to stock firmware but ODIN won't recognize my device. Actually my widows XP machine won't recognize it either.
Tried with different machine and reinstalled drivers and still nothing.
I have installed CWM recovery mode and phone is rooted.
Any suggestions how to flash it to stock firmware ?
Thanks in advance

getmeister said:
I apologize if thread is already posted.
I tried to flash my i9001 to stock firmware but ODIN won't recognize my device. Actually my widows XP machine won't recognize it either.
Tried with different machine and reinstalled drivers and still nothing.
I have installed CWM recovery mode and phone is rooted.
Any suggestions how to flash it to stock firmware ?
Thanks in advance
Click to expand...
Click to collapse
Check step by step to resolve your problem http://forum.xda-developers.com/showpost.php?p=27205737&postcount=4571

xsenman said:
Check step by step to resolve your problem http://forum.xda-developers.com/showpost.php?p=27205737&postcount=4571
Click to expand...
Click to collapse
Sorry, but I forgot to mention that ac power adapter won't charge the phone also ... only when SGS+ is turned off ?!

getmeister said:
Sorry, but I forgot to mention that ac power adapter won't charge the phone also ... only when SGS+ is turned off ?!
Click to expand...
Click to collapse
can you explain what you mean by "only when SGS+ is turned off ?!"
can you charge by USB Cable?

xsenman said:
can you explain what you mean by "only when SGS+ is turned off ?!"
can you charge by USB Cable?
Click to expand...
Click to collapse
sometimes it does someties it doesn't ... odd isn't it
but still not recognized with winXP.

getmeister said:
sometimes it does someties it doesn't ... odd isn't it
but still not recognized with winXP.
Click to expand...
Click to collapse
Clean your contacts with alcohol and brush and try to use a on a different USB slot at back of PC
Did you try the solutions on the link, I posted?

xsenman said:
Clean your contacts with alcohol and brush and try to use a on a different USB slot at back of PC
Did you try the solutions on the link, I posted?
Click to expand...
Click to collapse
Tried on two win XP machines, and win 7 notebook. I really don't think there is a problem with machines

getmeister said:
Tried on two win XP machines, and win 7 notebook. I really don't think there is a problem with machines
Click to expand...
Click to collapse
Its not only about the machines, its also about the USB cable and USB slot, you need to isolate the problem by way of elimination....get a hold of another original samsung USB Cable to isolate that is not the cause and than examine your Phone USB slot for damage/mislaigned pins ...you can try moving the usb plug to see, if connection is being established

xsenman said:
Its not only about the machines, its also about the USB cable and USB slot, you need to isolate the problem by way of elimination....get a hold of another original samsung USB Cable to isolate that is not the cause and than examine your Phone USB slot for damage/mislaigned pins ...you can try moving the usb plug to see, if connection is being established
Click to expand...
Click to collapse
considering the cables ... got one from Samsung and other from Nokia, also ac power adapter is yet another so we eliminated the possibility of broken cables .
Still day after I sucessfully installed CWM recovery mode with ODIN.
So I suspect a problem with firmware

getmeister said:
considering the cables ... got one from Samsung and other from Nokia, also ac power adapter is yet another so we eliminated the possibility of broken cables .
Still day after I sucessfully installed CWM recovery mode with ODIN.
So I suspect a problem with firmware
Click to expand...
Click to collapse
Nokia Cables are not compatible with Samsung Phones and for ICS, its best to use Samsung Nexus drivers or ICS drivers

xsenman said:
Nokia Cables are not compatible with Samsung Phones and for ICS, its best to use Samsung Nexus drivers or ICS drivers
Click to expand...
Click to collapse
I got myself a new cable, installed Nexus drivers .... and gues what ....
SGS+ is charging but message is still there "USB device not recognized" ....
Do you have something else in mind ?

getmeister said:
I got myself a new cable, installed Nexus drivers .... and gues what ....
SGS+ is charging but message is still there "USB device not recognized" ....
Do you have something else in mind ?
Click to expand...
Click to collapse
Assuming you did not just buy any compatible cable, much to my regret, I myself have bought and found unusable .
and you have tried the Quick Guide
If phone is not being detected of a sudden (Quick Guide)
1. Reboot PC after a power cord pull and Reboot Phone after a Battery Pull , try USB connection
2. Try using a different Samsung USB cable (must be sumsung and nothing else)
3. Try a different USB port (use USB slots at the back of PC)
4. Try on a lap top or different PC
5. Try install nexus drivers - needed for ICS firmwares
6. Make sure you don't have fast charge on.
Trick : Putting your Phone into download mode and connecting it with USB cable to PC will do it automatically. Meaning drivers will be installed by windows If there are none.
Frankly, these works for me all the time, so I am a bit clueless as to why you are unable to. I mean losing USB connection is pretty common, happens every now and than.
You should also try switching off WIFI , reboot the phone, reboot the PC, start Odin and than plug in the phone ( this worked for some)
Since the USB is trying to connect but not recognized as to what it is, you should try again, this time using device manger as mentioned here http://forum.xda-developers.com/showpost.php?p=27205737&postcount=4571
thats all I can think of

Finaly solved my problem!
Thanks!

Nothing helped, thank you for your effort.
Is there any way to flash to stock firmware other than ODIN ?

getmeister said:
Nothing helped, thank you for your effort.
Is there any way to flash to stock firmware other than ODIN ?
Click to expand...
Click to collapse
use MObile ODIN

xsenman said:
use MObile ODIN
Click to expand...
Click to collapse
Tried that too... "Device unsupported ....

change the cable if that dosnt helps try on windows 7 machine cuz once i flashed jw4 on ma windoes xp n d usb connection timed out n i ended with soft brick but got lucky that i could re enter download mode n i flashed jw4 again but in windown 7 machine happy flashing

YOMAN18 said:
change the cable if that dosnt helps try on windows 7 machine cuz once i flashed jw4 on ma windoes xp n d usb connection timed out n i ended with soft brick but got lucky that i could re enter download mode n i flashed jw4 again but in windown 7 machine happy flashing
Click to expand...
Click to collapse
tried with 2 WinXP machines , one Win7 and even Ubuntu 12.04 LTS
no luck

getmeister, you can not solve this problem? I also ran into her niznayu what to do, I know that never in my life do not put anything on this board if you solved the problem of how to write please [email protected]

If nothing works, then its most probably your mobile usb port.
Get it Samsung repair!
Sent from my GT-I9001 using xda app-developers app

pc doesn't recognize phone in download mode

i got a problem with download mode.
i can put the phone in download mode by pressing vol- / home / power but the pc doesn't recognize him but just in download mode.
i have twrp recovery and i tryed to instal new rom but it show me E: signature verification failed so after i wanted to instal new rom throught odin but ...
any help please? thanks

Fix the drivers with kies troubleshooting connection.
Sent from the dark side on my GT-I8190

so when i connect phone with kies everything work great. but i cannot connect phone in download mode with odin.
now windows shows that it was unable to find u8500 USB ROM

Everything points to a driver problem. Weird.
Sent from Spaceball One.

i tried on two pc's but same result

lubos07 said:
i tried on two pc's but same result
Click to expand...
Click to collapse
Use a usb on the backside, with original cable if nothing else works. Launch Odin. Put phone in download and connect cable.

Did you enable usb debugging??
Sent from the dark side on my GT-I8190

tys0n said:
Use a usb on the backside, with original cable if nothing else works. Launch Odin. Put phone in download and connect cable.
Click to expand...
Click to collapse
i tried but nothing happens

iKlutz said:
Did you enable usb debugging??
Sent from the dark side on my GT-I8190
Click to expand...
Click to collapse
of course it is enabled

Usb debug doesnt matter. Download mode works either way. If you cant boot normal to activate it, you can still flash new fw through Odin.
Open task manager and kill all process with kies and try again.
Sometimes they interfere each other.

i killed 2 process with kies but again nothing happens.
the odin can recognize phone when is turn on but if is in download mode the odin cannot recognize phone.

Or exit any Anti–virus software you may have as well.
Sent from my GT-I8190 using xda premium

ok guys
after fresh win instal everything work grat :laugh:
anyway thanks you

lubos07 said:
i got a problem with download mode.
i can put the phone in download mode by pressing vol- / home / power but the pc doesn't recognize him but just in download mode.
i have twrp recovery and i tryed to instal new rom but it show me E: signature verification failed so after i wanted to instal new rom throught odin but ...
any help please? thanks
Click to expand...
Click to collapse
mate use original usb cable don't use other fake ones

Desparoux said:
mate use original usb cable don't use other fake ones
Click to expand...
Click to collapse
How should this matter at all? What are fake usb cables? USB 1.0 to 2.0 has the same standard - a set of to wires that hast to handle 5V+ (and max 1.8A with dedicated chargers, if you use USB 2.0 and especially MicroUSB-B slot on the 2nd side) and ground, and 2 wires for data (+ Data and - Data). Micro-USB has another 5th wire to check, if host or slave connection method is used. Technically all USB cables are interchangable.

rarog said:
How should this matter at all? What are fake usb cables? USB 1.0 to 2.0 has the same standard - a set of to wires that hast to handle 5V+ (and max 1.8A with dedicated chargers, if you use USB 2.0 and especially MicroUSB-B slot on the 2nd side) and ground, and 2 wires for data (+ Data and - Data). Micro-USB has another 5th wire to check, if host or slave connection method is used. Technically all USB cables are interchangable.
Click to expand...
Click to collapse
Yes, in theory they're all the same but they do come in different qualities and it's a well known fact that changing usb-cable can be the differens for a successful flash.

tys0n said:
Yes, in theory they're all the same but they do come in different qualities and it's a well known fact that changing usb-cable can be the differens for a successful flash.
Click to expand...
Click to collapse
In that case I had the luck to use only good cables, I never had any problem besides cases, where the cable was broken, so the contacts were not always closed. But this was a problem with normal USB connection, too, so I got rid of it anyway.

U think so but its has diff quality so u need to use original cables use and see what I really mean
Sent from my GT-I8190 using xda premium

Go To TecnicalServis Usb Daata connect point repair.

[Q] Problem with connecting LG P970 to PC

Hello people
I'm new here, in terms of asking questions and seeking help
I have the LG Optimus P970
A few days ago I made ​​the update to ICS, and by proceeding with this page, hackmyandroid.com/optimus-black-p970-official-ics-update/3299
After that, not impossible to connect the phone to a PC, even the software update mode, it can not recognize, anyway to connect it just throws a slow charging.
Is there someone who knows what it is.
I'd love to go back to the old software, but there is no way to detect it pc
Sorry for my bad english
Thanks in advance

I forgot to say, before the update, and my computer still recognize the phone, connecting it over sony usb cable, now it is no longer recognized by the Sony USB cable, and I do not have original LG USB cable.
Perhaps this is the reason why a computer will not recognize the phone

edzunic said:
I forgot to say, before the update, and my computer still recognize the phone, connecting it over sony usb cable, now it is no longer recognized by the Sony USB cable, and I do not have original LG USB cable.
Perhaps this is the reason why a computer will not recognize the phone
Click to expand...
Click to collapse
Your problem can be the non original cable or........reinstall the drivers and try again
Enviado desde mi LG-P970 usando Tapatalk 2

ferhpsquad said:
Your problem can be the non original cable or........reinstall the drivers and try again
Enviado desde mi LG-P970 usando Tapatalk 2
Click to expand...
Click to collapse
I have the original cable, but still the same problem.
I have all drivers installed, I can transfer files between the phone and the pc, I can use the LG suite,
But I can't see my phone on the ADB console, I can't use smartflashtool cause the phone isn't recoginized.

yesterday I tried with lg cable, and wall charger, in both cases, said slow charging the battery, I tried on three different computers, I tried to reinstall the drivers, like the software blocked communication with the phone, just charge the battery.
If there was a way to put the software through SD card, it might solve the problem.
even the software update mode, the computer does not see the phone

Bro! For the softwaretool like smartflash, You need to boot into download mode i.e., You need to switch off the phone, plug in the USB cable connected to the PC and instantly press the volume up button. Then the tool will recognise Your phone. Try it and check once!

I tried it, nothing happens,
I go to download mode, but computer does not recognize it again
behaves as if the port is destroyed

edzunic said:
I tried it, nothing happens,
I go to download mode, but computer does not recognize it again
behaves as if the port is destroyed
Click to expand...
Click to collapse
Try to boot your PC with disabled driver signatures, or use a 32bit windows system.
try entering download-mode the following way:
disconnect your phone from pc
remove battery
press and hold Vol-up
connect the usb-cable (still without battery)
Now the phone should be detected as a serial-cable device an you can use the smart flash tool.

would have to be sound,
no sound when I connect the phone to the PC

Solved my problem.
Seems like windows automatically installs driver to the phone, but it partially works.
Unistall all drivers for the phone, or try on a new computer.
Plug the phone and cancel the driver search by windows
Install drivers for LG (unplug the phone before)
Turn it off
Plug the cable and enter download mode
And there is the phone recognized on smartflashtool.
I'm flashing a new one right now, thank you.

You do not understand the problem
there's no sign, no sound when I connect the phone to a computer, any computer, drivers were or were not.
As if something in the phone blocked communication between the PC and phone

edzunic said:
You do not understand the problem
there's no sign, no sound when I connect the phone to a computer, any computer, drivers were or were not.
As if something in the phone blocked communication between the PC and phone
Click to expand...
Click to collapse
I got same problem.

bollix said:
I got same problem.
Click to expand...
Click to collapse
add me!

Connection Problem with Mackay 2.999
Hey Guys,
first of all, sorry for my not so good English
I'am at Mackay 2.999 with last Kernel of his build and can't connect the Phone to the Computer.
It only install the LGE Mobile Composite USB Device, the LGE Mobile USB Serial Port and the LGE Mobile USB Modem on connecting to the Workstation.
I had test it on many Computers but the Problem is all the same: I can't get on my Memory or ADB.
I also had testet all modes under the setting point (MTP/PTP/mass storage device) and with debbuging on and off.
On my Workstation is the Last Version of ADB (1.0.31) installed.
Did anyone know the problem?

Did no one know a result to this problem

Hmmm my PC also can't read my storage what I did is go to cwm and plugged in usb cable and pressed mount storage it seems to solve my problem. I also did a cache and dalvik cache wipe.

Hey, I have found the result to this problem. You must flash another Baseband. Use from Nooby the V30 Baseband and it is solved.
Gruß Ernst
via Tapatalk 2

but how to flash, when can´t connect to pc

lg optimus
hi frendz ,
please help me out
i'm using lg optimus p970..last night my phone memory get full and mobile get turn off ..now it wont turn on even battery is fully charged...only LG logo shows nithing else...

Hy guys , i have the same problem . I updated to 4.4.2 Nameless ROM and i can't connect my phone to pc . The only action that it's done : charging the phone and that's all . I tried connecting to another pc but with no result . An error appeared :" LGE USB Device - No driver found " .Before 4.4.2 i had 4.1.2 from CyanogenMod and with that ROM i had no problem connecting the phone to the pc . Any help ?

Phone_not_dectected_while_in_download

Just like the title says my GT-S5570 is not getting detected by PC(Odin) in download mode
but Odin detects it in ramdump mode.
the problem is that device is locked and i cant boot into recovery mode(bootloop)
so want to flash stock (2.2.1)firmware to restore phone
help...pls...someone...anyone....

what could you try:
take out battery for 7 seconds,
connect to a different USB port,
a different PC,
a different ODIN version,
try Samsung KIES instead,
use different USB cable …

chorknabe1 said:
what could you try:
take out battery for 7 seconds,
connect to a different USB port,
a different PC,
a different ODIN version,
try Samsung KIES instead,
use different USB cable …
Click to expand...
Click to collapse
tried everything kies just gives random errors and odin is just stuck at setup connection is there any way i can install twrp throug adb and try from there