Related
There have been those that run into problems after installing the XXJP3I9000 update on the Samsung Captivate and attempt to reboot into recovery mode. The issue that they have is that since the Captivate has no physical home button to select an option like you can with the Galaxy S, you can't select an option, and therefore you can't reboot your device regularly. While I am in this same problem and have not figured out a solution, I have started this thread to post what knowledge I have about this issue so that others may help get this issue figured out. If anyone has information on how to fix this problem, please comment below. Let's fix this!
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
First of all, the key combinations that standardly would work with the original captivate firmware will not work anymore. Pressing all three buttons (Vol+, Vol - and Power) will only power cycle the phone, that is, until you let up on the buttons. Pressing Vol+ and Vol- and then plugging your phone into the computer will also do nothing. (By nothing I mean will take you back to the recovery menu)
Every key combination will only take you back to the recovery menu, so key combinations seem to be out.
If you boot into recovery mode, take out the battery and put it back in, all the while keeping the phone plugged in to the computer, the phone will enter the "POWER RESET OR UNKNOWN UPLOAD MODE", which will show your device in windows as being a Samsung USB Composite Device and a Samsung Mobile Modem (gadget serial, Windows 7) While this may be helpful, you cannot run ODIN or ADB in this mode, nor does this allow disk access. If you have Samsung Kies installed, it will detect a device, but will never complete loading it.
Other information with this method: On the phone screen, as well as showing "POWER RESET OR UNKNOWN UPLOAD DEVICE" the screen will also show the following in red:
RST_STAT =0X1
PMIC_IRQ1 =0X0
PMIC_IRQ2 =0x0
PMIC_IRQ3 =0x4
PMIC_STATUS1 =0x40
PMIC_STATUS2 =0x2c
If this helps anybody, it was a pleasure
Another method I found briefly was that after installing Kies, and rebooting the phone into recovery mode (again) my computer detected four new devices, two of them being Samsung Android devices and one being a disk drive. Potentially, without freezing or error, the drivers that are included with the Kies software will detect and allow for disk management while the phone is in recovery mode. Three of the four devices installed without error for me, but the fourth, the actual Android device, continued to say "installing device" until I unplugged the phone out of frustration. It has since not detected those four devices again, and I have yet to figure out how to do that again. The nice thing about that was that although the adb.exe reboot download command did not work, adb.exe did detect the phone. if this is true then rebooting normally or into download mode should be easy.
The last thing I noticed is that button furthest to the left on the main screen on the captivate will close the recovery menu when pressed, and leave the background behind, and then will reopen the recovery menu when pressed again. This is showing me that the four touch buttons are operable, but not configured. If it were possible to reconfigure the actions that pressing these buttons do, then it would be easy to be able to reboot the device normally.
I have compiled information to the best of my ability, and here is a question to ask, that I think will help solve the problem. Can the captivate with I9000 2.2 software run adb in recovery mode?
Comments, Questions, and Most of all, answers would be appreciated for me, as well as for other users with the same problem as I. Hopefully, this thread can be the solving point for this problem.
Many Thanks,
TouchofDestiny
The n00b who isn't a n00b at all
An Update: The reason that the combinations don't work for me or either people is because they (and I) fail to install the captivate kernel, and that is making the volume power button controls useless.
same here i put froyo from the galaxy s i9000 and i cant change the rom or get into recoverymode because buttons dont work man this sucks and 3G or Edge doesnt work.....
You're problem is a little different. If you can't get into recovery mode, than that means you aren't in recovery mode, which means you can use ADB to enter download mode and use Odin to flash your phone. I have given up looking for a solution, and have sent my phone back to AT&T for a replacement. Since I'm still in my thirty day trial period, it doesn't matter if I used different firmware or not. Hopefully others won't get into the situation I had. For me, this thread is complete.
brandon9721 said:
same here i put froyo from the galaxy s i9000 and i cant change the rom or get into recoverymode because buttons dont work man this sucks and 3G or Edge doesnt work.....
Click to expand...
Click to collapse
hi,
I solved the same problem doing this:
start odin.
take out battery. plug in USB. press both volume buttons. insert battery while pressing those buttons.
Done. download mode should appear.
yep, same boat
I am in the same position here. I downloaded the froyo leak and installed it with odin, no problem there. Upon startup into froyo, all was good, except my phone was stuck in horizontal mode until I tilted it vertical, *then* it would go horizontal. So basically I am 90 degrees off kilter. I decided to look around for another rom to try, and in the process managed to get stuck in recovery mode. Couldn't tell ya what firmware I have, just what is on the endless recovery screen that I cannot get out of!
I have no external microSD card, only the SIM card, and no way to get it recognized on my XP or win 7 system.
Really, really stuck here, guys. I do have the androidsdk installed, if there is a way to get it to reboot. As it is, adb cannot see the device, so I am looking at a truly bricked phone.
And yes, this is a US phone, which is why the power button and home button are not mapped (I assume).
I am DESPERATE for some help here!
and while I am at it...
I WAS able to get into download mode with the shovel guy originally by using the 2 volume keys+power, usb (odin up), battery in, release power.
No more. No key combo works.
Totally bricked the Samsung, which is supposed to be impossible!
pkrouse said:
I WAS able to get into download mode with the shovel guy originally by using the 2 volume keys+power, usb (odin up), battery in, release power.
No more. No key combo works.
Totally bricked the Samsung, which is supposed to be impossible!
Click to expand...
Click to collapse
when you are on the i9000 rom the only button that will get you in download mode is the vol down
That's HUGE!
You, sir, are a gentleman, scholar, and all-round smart guy! How did I miss that? I coulda SWORN I was getting into download mode with both volume keys. I've never been so happy to see a little Dalek dude with a shovel in my LIFE. 2 minutes in the one-click installer and now I'm back in business!
Thanks for helping a terrified owner out, and preventing a trip to the AT&T store.
I cannot go to download mode
I have the same problem here. Stuck in the recovery mode after upgrade the froyo and had the orientation problem. How do you go into download mode or power reset or unknown upload mode? Any button combination doesnt seem to work for me.
How do I do?
Please HELP. I am struggling here
Thanks
xaga150 said:
I have the same problem here. Stuck in the recovery mode after upgrade the froyo and had the orientation problem. How do you go into download mode or power reset or unknown upload mode? Any button combination doesnt seem to work for me.
How do I do?
Please HELP. I am struggling here
Thanks
Click to expand...
Click to collapse
the key to the i9000 rom/kernel button combo is VOL DOWN + using the USB trick. do not press vol up + down, just the down while you are plugging in the usb cable
i too am stuck in recovery mode. the only way i can get into download mode is by using both volume buttons. just holding the down button just sends me to revoery mode as well. how can i fix my phone in download mode?
nevermind, reinstalled 2.2 and it works now.
Eureka I got it...I think
I installed froyo 2.2 i9000 on my captivate and got stuck in recovery mode...power button doesnt select and when I hold down the up and down vol buttons I couldnt get the downloading icon anymore either. Then I remembered something from another post....
Home + Vol Down + Power = Downloading Icon
It worked for me....let me know if this helped....I'm officially unbricked.
Hey. I'm in the same boat. My Captivate has I9000 firmware running it and it won't run properly. I can't access the settings to enable USB debugging in order to boot in either Recovery or Download using adb and no button combination works for me. I can't use button combos to boot into either Recovery or Download mode.
Does anybody have any idea what is going on and how to fix this?
JPBetley said:
Hey. I'm in the same boat. My Captivate has I9000 firmware running it and it won't run properly. I can't access the settings to enable USB debugging in order to boot in either Recovery or Download using adb and no button combination works for me. I can't use button combos to boot into either Recovery or Download mode.
Does anybody have any idea what is going on and how to fix this?
Click to expand...
Click to collapse
JPBentley-- Since the I9000 firmware is set to use physical buttons, and the Captivate doesn't contain any, once you get into recovery mode, you cannot get out. The standard Captivate key combinations to get into download mode do not work, as do the combinations to get into download mode via the I9000 firmware. Basically, you get to a dead end. Unless there is some way to flash the phone's ROM outside of download mode, which I doubt, your best bet is to return the phone for a replacement. After haggling around with AT&T for a while, they admitted that installing the I9000 ROM doesn't invalidate your warranty, so they should take it back. They did with mine, and now I'm running the official Froyo leak. Good luck with your new phone!
SOLUTION
For all those that are having this problem, Ive struggled with it & tried EVERY possible button combination & nothing worked.
The ONLY solutions I have found is to use a usb JIG. Take out the battery, sim card & sd card, plug in the Usb JIG & put the batter back in. Give it a couple of seconds & I'tll enter recovery mode without pushing any buttons. You dont even need to push the power button, it's that simple.
Here is an image of how to make one if you are electronically inclined, personally I am not so I found a local electronic parts store & they put on together for me.
1.bp.blogspot.com/_3KjgtwnRiWM/TNTyjkZGquI/AAAAAAAABL4/7NSmqrYmkmU/s640/i900.jpg
If you want, you can also buy one online, I cant post a link becuase Im a new member but just search for "samsung usb jig" on ebay.com & youll find plenty.
shop.ebay.com/?_from=R40&_trksid=p5197.m570.l1313&_nkw=samsung+usb+jig&_sacat=See-All-Categories
yes, i think you need to build a jig or buy one online if you want to play with custom rom. you may not need it now, but you may need it just in case.
http://cgi.ebay.com/ws/eBayISAPI.dl...47234&ssPageName=STRK:MESELX:IT#ht_511wt_1139
agustinpac said:
hi,
I solved the same problem doing this:
start odin.
take out battery. plug in USB. press both volume buttons. insert battery while pressing those buttons.
Done. download mode should appear.
Click to expand...
Click to collapse
OMG you saved my life
thx so much for your post
I have the same problem, i can get into recovery mode. I can also get to download mode but Odin doesnt see my phone and neither does adb. By pulling the battery with no buttons pushed it goes straight into recovery mode. Looks like I have a brick now. If anybody has any suggestions please let me know.
drowe24 said:
I have the same problem, i can get into recovery mode. I can also get to download mode but Odin doesnt see my phone and neither does adb. By pulling the battery with no buttons pushed it goes straight into recovery mode. Looks like I have a brick now. If anybody has any suggestions please let me know.
Click to expand...
Click to collapse
That's not even close to a brick. Are you using a usb port closest to the motherboard on your pc? Is your cable good? Make or buy a jig, that will put your phone into download mode.
Sent from my blazing fast Captivate running Continuum GB ROM using Tapatalk Pro
I installed Amimod that lets me change the transitions between apps, i ran it to change it to a cross fading transition and it said i had to reboot later to make the changes take effect. I kept that and mind and used some other apps. They all didn't load and gave me the "com.xxx.xxxx is unable to continue" type deal with the force quit button.
So i restarted my phone and now launcher loads but the pop ups come saying "com.android.phone is unable etc" or "com.android.media is unable...". There is no status bar and the phone doesn't lock. After about five minutes of trying to press the force quit button, nothing happens. I went into recover mode and cleared my cache but that didn't help.
[tldr] I can get my phone into download mode but is it possible to open the phone as a root folder on my computer so i could uninstall Animod and any changes it made? I don't want to master reset.
ROM reflash is only option.
I reflashed using odin but now its stuck in a boot loop with the att logo. When i plug it into the usb it loops the loading sign and the battery sign. What now?
Have you used odin before?
Which odin did you use?
What build is your phone?
Can you still get into download mode?
I have not used odin before this was my first time.
I used the one that is prepackaged with the .pit and .tar file "I897UCJF6-final-OCD-REV0.exe"
My phone was stock android that i rooted.
Cant get it into download with any button combo.
Under your battery left side on the white sticker. Your phone had a build number. Mine is 1008. 10 meaning 2010 08 meaning august. What is yours
Also tell me exactly what you have tried to get into dl mode
Build number 1011, and now my phone wont even turn on. When i hold the power button it is unresponsive, and its not dead i charged it.
Niwatori said:
Build number 1011, and now my phone wont even turn on. When i hold the power button it is unresponsive, and its not dead i charged it.
Click to expand...
Click to collapse
Looks like you will need to try to force the DL mode with the odin instructions or get a jig and see if that works
Download mode
remove all sd, sim, bat
Put bat back in
Hold volume up abd down
Plug in usb
In it works great, if not usb jig
Going forward do not use odin one click use this method
http://forum.xda-developers.com/showpost.php?p=10056254&po
i got it into download mode using the button combos (battery out then hold vol up and down etc) and used the odin 1 click downloader for captivate, but it failed twice.
It got to the point where I had to buy some resistors to make a USB jig. The jig worked fine and put it into download mode but Odin still failed...Twice more. Now my phone wont even show the logo when i hold the powerbutton and the jig doesnt seem to work anymore. Its not the battery because i charged it for a full night before i tried jigging it again.
I would try the non one click odin method now except that i cannot get my phone into download mode.
I have no idea what to do now, it seems like its completely bricked.
At this point (if I'm able to replace it) would the workers at samsung or att be able to access my data at all? I only had the phone for 3 months. And would my warranty be void for rooting/flashing?
Niwatori said:
At this point (if I'm able to replace it) would the workers at samsung or att be able to access my data at all? I only had the phone for 3 months. And would my warranty be void for rooting/flashing?
Click to expand...
Click to collapse
Hypothetically, yes and yes, but the reality is they will likely just wipe it and reflash it without ever looking at what's on it. Just tell them something went wrong when you tried to upgrade to Froyo via Kies. That's happened to enough people that they probably won't question it.
Hello people,
I recently installed GalaxySense Rom (Search "oozeroo" on Google) for my Samsung Captivate AT&T, and it was working fine, until I changed a few settings, then it said it was going to Hot Boot, so the hot boot worked fine. Then, I turned off my phone and turned it back on, and it does not boot. I tried some stuff (check the Situations). My phone is stuck at "Galaxy S Cyanogen(Mod)" (Picture Included!!!)
Situation:
-No Download Mode
-No recovery mode
-Flashed this rom with rom manager (wiped dalvik cache only)
-TRIED installing Clockworkmod recovery, but wont work (not booting into recovery)
-Only an internal SD inside phone, 14 Gigs.
(Ask me for more info if needed please)
Thank you so much, and please help.
--DV
dvasavda said:
Hello people,
I recently installed GalaxySense Rom (Search "oozeroo" on Google) for my Samsung Captivate AT&T, and it was working fine, until I changed a few settings, then it said it was going to Hot Boot, so the hot boot worked fine. Then, I turned off my phone and turned it back on, and it does not boot. I tried some stuff (check the Situations). My phone is stuck at "Galaxy S Cyanogen(Mod)" (Picture Included!!!)
Situation:
-No Download Mode
-No recovery mode
-Flashed this rom with rom manager (wiped dalvik cache only)
-TRIED installing Clockworkmod recovery, but wont work (not booting into recovery)
-Only an internal SD inside phone, 14 Gigs.
(Ask me for more info if needed please)
Thank you so much, and please help.
--DV
Click to expand...
Click to collapse
What key combo are you trying for recovery? You have a JIG laying around? If not, I'd go get one regardless of how invincible you think your phone may be. Maybe you could try Adam's one-click unbrick. http://forum.xda-developers.com/showthread.php?t=1153310 I don't know what conditions need to be met for it (your phone) to be recognized, but I'd give it a shot anyway.
I am using:
take out battery, hold both volume buttons, plug in USB, then put in battery, all with both volume buttons held the whole time.
No, I do not have a jig, I want to get one though
-I do not care to erase everything I have, I tried using Odin3 one click downloader, it worked for me once, when my phone actually went download mode
dvasavda said:
I am using:
take out battery, hold both volume buttons, plug in USB, then put in battery, all with both volume buttons held the whole time.
No, I do not have a jig, I want to get one though
-I do not care to erase everything I have, I tried using Odin3 one click downloader, it worked for me once, when my phone actually went download mode
Click to expand...
Click to collapse
remove sim and microsd. You have to have your batt back in before you hold volume+- and insert USB
what recovery key combo you using?
still nothing buddy, tried your technique
thanks dude
i did try returning it, but they didnt accept it (costco), NOT because I had another romm installed... but because it wasnt booting!
-although, I do not have the battery sign show up, it just has the circle, then it goes to galaxy s screen
Twicebak3d said:
What key combo are you trying for recovery? You have a JIG laying around? If not, I'd go get one regardless of how invincible you think your phone may be. Maybe you could try Adam's one-click unbrick. http://forum.xda-developers.com/showthread.php?t=1153310 I don't know what conditions need to be met for it (your phone) to be recognized, but I'd give it a shot anyway.
Click to expand...
Click to collapse
Dont have linux
post as much as you want on this thread, i dont really care
any other ideas?
Well..... has galaxysense been actually ported to the captivate yet? I doubt this'll work but.... try vol down + home + power. You could vary vol down with vol up for recovery mode as well. Like I said.... doubt they'll work.
It has ported to captivate, there is a captivate section on website
Home button? you mean the touchscreen/virtual home button? When do you press it:when it lights up?
-btw, i tried the brick fix thing, but it didnt recognize my phone, because it was only booting
dvasavda said:
It has ported to captivate, there is a captivate section on website
Home button? you mean the touchscreen/virtual home button? When do you press it:when it lights up?
-btw, i tried the brick fix thing, but it didnt recognize my phone, because it was only booting
Click to expand...
Click to collapse
There's a reason I didn't think it'd work lol. Those are i9000 key combos lol. Get a jig imo.
what are the sgh-i897 combos?
can you go into safe mode with this?
and my home button question please?
dvasavda said:
what are the sgh-i897 combos?
can you go into safe mode with this?
and my home button question please?
Click to expand...
Click to collapse
Yeah I meant that virtual key. cappy combos are vol up/down + power for recovery mode for me.
no recovery for me
actually, at first, I had no recovery on my new rom, so... (I dont want to tell you this!) but I looked for a stock recovery, and I put it over the old recovery file in the system.
dvasavda said:
no recovery for me
actually, at first, I had no recovery on my new rom, so... (I dont want to tell you this!) but I looked for a stock recovery, and I put it over the old recovery file in the system.
Click to expand...
Click to collapse
Do you know if you flashed 3 button? try vol up vol down power. hold those while inserting usb
nothing dude yet, i did not flash the 3 button fix, (oops!)
i did notice that, when the phone is booting up, and I connect, the phone is half recognized with computer, and yes I did install drivers.
If i go to device manager, it says Captivate, but with a yellow exclamation mark
have to go to, talk to you tommorow morning!
thanks buddy, i appreciate it!
dvasavda said:
nothing dude yet, i did not flash the 3 button fix, (oops!)
i did notice that, when the phone is booting up, and I connect, the phone is half recognized with computer, and yes I did install drivers.
If i go to device manager, it says Captivate, but with a yellow exclamation mark
Click to expand...
Click to collapse
I wonder if it'd be recognized by ADB if you install Nexus S drivers. try using that as the drivers for the marked captivate in dev manager. http://developer.android.com/sdk/win-usb.html#
If it changes name to Android Composite ADB interface, then you can ADB into recovery and reflash. I don't see how but if you don't have a jig.... might as well try.
(just raised your thanks meter!)
can I cut off an old charger that fits the captivate, and use that?
dvasavda said:
(just raised your thanks meter!)
can I cut off an old charger that fits the captivate, and use that?
Click to expand...
Click to collapse
For a JIG? Possibly. You have to jump pins 4 and 5 with 300k worth of resistors. if you look in my sig, there's also a guide to just making one without a USB. Regardless of how you apply the resistance to your phone, you still need 301k. There is a window. I've seen 294k jigs work, so just as long as resistance is in a certain range across those two pins, it will work.
ok, thanks
I tried adb rebooting, but says error device not found
(same thing happened when my device was working and on)
Hi everyone,
After trying to flash the latest SlimBean rom on my Galaxy S, I ended up with a boot loop and no more recovery mode. I can always access to the Download mode but my computer doesn't recognize my phone when I plug it in, so I can't flash a new kernel to retrieve the recovery (thing that I had already successfully done before). When connecting the phone to the PC, no sign of life, no noise, no new device in the device manager... Tested on another PC, same thing (I did not test with another cable though, it could come from there, but it is doubtful). Drivers are up to date, it works with other phones.
I also tried with Heimdall, nothing appears in the USB device list relating to my phone (not surprising though).
I saved my GS a lot of times before, but this time I am stuck with this... Any idea or it is just hopeless ?
Thanks in advance, and keep up the good work !
Are you sure no recovery as you need to flash it twice due to partition changes make sure you hold volume down home and power until the screen flashes then let go of them its guaranteed to get recovery if its there
Sent via that ninja standing right behind you
Yes I'm sure, if I hold down-home-power I can access to the download mode. If I hold up-home-power (like I used to do to enter the recovery mode) it just keeps boot looping.
OK well you will need to try a different computer I guess one that detects your phone
Sent via that ninja standing right behind you
Wirllpool said:
Yes I'm sure, if I hold down-home-power I can access to the download mode. If I hold up-home-power (like I used to do to enter the recovery mode) it just keeps boot looping.
Click to expand...
Click to collapse
you may try this way,
Boot to recovery mode without SIM card and memory card.
Hi,
A friend gave me their old i8190 which has a broken screen. They haden't used the phone in a while.
It makes a noise when I turn it on, and the softkeys light up, but the screen is broken.
However, when I plug it into the PC- it doesn't come up as a device.
I do not want to buy a replacement screen (cost around $70 US) to find out it's broken elsewhere.
How can I determine this- is there anyway to mirror what should be on the screen? The previous owner doesn't know
You can try to start it in download mode, flash the 3 button combo for recovery (and maybe a custom recovery), reboot in recovery and connect with adb. You will be able to browse the device internal memory and you'll know if cpu and ram works ok.
If you have a rom with usb debugging enabled by default you can run apps using adb (and take screenshots): http://stackoverflow.com/questions/4567904/how-to-start-an-application-using-android-adb-tools
Also check this: http://stackoverflow.com/questions/13326806/enable-usb-debugging-through-clockworkmod-with-adb
deconectat said:
You can try to start it in download mode, flash the 3 button combo for recovery (and maybe a custom recovery), reboot in recovery and connect with adb. You will be able to browse the device internal memory and you'll know if cpu and ram works ok.
Click to expand...
Click to collapse
Well I'm a bit lost- I'm using the 3 button combo (Home+Volume up+ Power key). Is that combo correct?
Without being able to see my screen, how to I connect with adb?
It makes noises like my PC detects the device, but nothing comes up.
I do have special USB drivers for my I9310 installed- could they be conflicting or anything?
i8190 doesn't have the VolUp+Home+Power combination active by default. You have to start in download mode (VolDn+Home+Power, followed by VolUp) and use Odin to flash a patch to activate the combination for recovery (you'll find the patch here on the forum). If Odin doesn't detect your phone you probably have some other problems except the display.
After you flash the patch you can use VolUp+Home+Power to boot into recovery. When you are in recovery adb is active (even in stock recovery). Just type "adb devices" and you will see your phone.
I don't know about the drivers.
deconectat said:
You have to start in download mode (VolDn+Home+Power, followed by VolUp) and use Odin to flash a patch to activate the combination for recovery (you'll find the patch here on the forum). If Odin doesn't detect your phone you probably have some other problems except the display.
Click to expand...
Click to collapse
I keep trying the combo (VolDn+Home+Power, followed by VolUp) but it doesn't seem to show up in Odin. I don't need a patched Odin for it to work do I?
How long to I have to wait between VolDn+Home+Power & VolUp? And is VolUp by itself?
Sorry for the obvious question- but I've been trying for hours without any success.
ycon said:
I keep trying the combo (VolDn+Home+Power, followed by VolUp) but it doesn't seem to show up in Odin. I don't need a patched Odin for it to work do I?
How long to I have to wait between VolDn+Home+Power & VolUp? And is VolUp by itself?
Sorry for the obvious question- but I've been trying for hours without any success.
Click to expand...
Click to collapse
You just need Samsung drivers for odin to detect your device, not sure if your special drivers is the problem, try downloading this one
Should be around 5 seconds, holding it any longer wont do anything so just continue holding if you're not sure, then just hit vol up only
Thanks for that.
It might be completely broken
I've tried two computers- installing the Samsung drivers, and using Odin, but the phone isn't showing up at all.
It's strange, because it sounds like it does work. I switched it on- and the volume buttons seem to make noises, and I even somehow took a photo.
What could be wrong? Thanks
I really don't want to throw this phone away.
Like I said- it seems to work (takes photo's) but nothing comes up when I plug it into any PC... I don't want to spend $100 on a new screen either, to find out it's broken.
Please help me out.
ycon said:
I really don't want to throw this phone away.
Like I said- it seems to work (takes photo's) but nothing comes up when I plug it into any PC... I don't want to spend $100 on a new screen either, to find out it's broken.
Please help me out.
Click to expand...
Click to collapse
Yeah, it sounds like you should be able to connect it to odin. Have you tried different usb ports / different computers?
Remember to plugg cable to phone after key-combo.