Database Develop

[Q] captivate bricked with no download mode

Hi
first of all thank you for so much info.
I spend more than 10 hours looking for a solution on other posts but can't fins a solution.
my phone is bricked and i am not able to get to the download mode or the recovery. before I bricked it I was able to get the download mode with adb with since i tried odin, i have the phone --!-- computer
I am in canada so returning it would be a hassle. any help would be much appreciated to get to the download mode
thank you very much

Download Odin.
Take out the SIM, SD card, and battery. Launch Odin, replace the battery, and plug the USB cord in, and just press down on the volume up and down buttons.
This should boot it right into download mode, then flash with Odin.
This phone is virtually IMPOSSIBLE to brick.

man, i tried that maybe 50 times no kidding!
still no download mode

SeriousBizznass said:
Download Odin.
Take out the SIM, SD card, and battery. Launch Odin, replace the battery, and plug the USB cord in, and just press down on the volume up and down buttons.
This should boot it right into download mode, then flash with Odin.
This phone is virtually IMPOSSIBLE to brick.
Click to expand...
Click to collapse
Hold the volume buttons first then plug in the usb. Thats what works for me. You have to have odin open first like he said.

just tried and still nothing....
if somebody is located in montreal, i would love to meet them to check that out

Athailias said:
Hold the volume buttons first then plug in the usb. Thats what works for me. You have to have odin open first like he said.
Click to expand...
Click to collapse
Having Odin open makes no difference if his button combo is not working. Unfortunately some people are not aware that there phone does not have the 3 button combo working.

what is your solution when you don t have the 3 button combo working?

The only thing you can do if there is no way to reach download mode is to contact At&t or samsung and see if they can repair the phone for you.
Have you tried using a different usb cable, someone mentioned that some USB cables dont work right with the captivate, try the one that came with the phone.

I know odin doesnt matter, but if he is going to flash with odin it helps to have it open first is all I meant. As far as that screen and no three button combo I think you are done... bricked... sorry, dont take my word for it though.

I could enter download mode with key combination before applying Cog's Beta5.5...
I've returned my cappy for exchange.

I am trying with the cable that came with the phone. I don't have another one.
I just bought this phone out of ebay. I will give it this week end to try and find a solution.
I really don't see any as of now but we'll see...
I will try return the phone to the ebay seller as i asked him before buying it if you could go into download mode! and he said yes!
man, I hope i find a solution!

what happens when you try and start your phone normally -- boot screen loop, anything?
Can you get into recovery mode?

when I try to start it normal I get the phone--!--computer
I am sure I tried recovery mode without any success. I am telling I spent so much time on this forum that my wife is going to start being jalous
How do you get to recovry mode again? I tried so many things, that I don't remember

you can't get the phone to be recognized on your computer? Could do ADB to boot into download.
But the battery trick should work.
Pull the sim, external sdcard, and battery.
Hold down the volume buttons and plug in the USB
Then jam the battery back in.
It might take a few times to get it.. but it should get into download mode. I just restored mine doing this trick when it was stuck on this screen.
Really we need to have a youtube vid of this technique

younescito said:
when I try to start it normal I get the phone--!--computer
I am sure I tried recovery mode without any success. I am telling I spent so much time on this forum that my wife is going to start being jalous
How do you get to recovry mode again? I tried so many things, that I don't remember
Click to expand...
Click to collapse
Hold down both volume buttons then hold down the power button until the boot s screen flashes two times then release the power button.

BTW - although it is a LOOOOONG video.. this might help folks out:
http://www.youtube.com/watch?v=iefapF1yZhE&feature=related

Not sure if it will help, but I've also read that you should use the actual motherboard usb ports and not a hub or any kind of "external" ports (i.e. the ports on the front of the tower)

i did all that stuff.
I ended up returning it to the ebay seller who will send me another captivate.
thanks guys

My download was working on cog 2.2 beta before i flashed back to stock using odin. Now when I try to enter download mode i just see the charging symbol. So the only thing that has changed is software. Could odin3 remove my download mode? What can i do?

Its been a rough night for me. I did a Nandroid backup which turned out I needed to restore after something else failed. After restore I did not have what I expected.
Anyway, to make a long story short, I ended up in a situation that no matter what I did, I could not get into download mode. Only recovery.
The good news is that after trying several different things, I finally found I had the original base rom I was using still on the SD card (even though I had done a Master Clear). I guess maybe the only thing that will empty the SD card is to format it.
I have no idea what I would have done had I not had a Clockwork zip on there.

[Q] Stuck in AT&T Screen boot loop, can't get into either recovery or download mode

[Q] Stuck in AT&T Screen boot loop, can't get into either recovery or download mode
I went back to stock (or tried to) and after Odin was done the phone just stuck in the AT&T boot loop, download mode is not working (it was working before so I know I am doing the right combination/timing) doing endless combinations of Vol-/Vol+/Power doesn't seem to get me into recovery mode-
I put my girlfriend's captivate on Continuum over the weekend so I'm sure I'm pressing the right keys to get into download mode, but I get nothing but the battery.
I do have the Android SDK in my computer but I'm never able to get past that naggy screen, so I can't do a 'adb shell reboot recovery' is a JIG my only option?
To recap, can't get into download mode and pressing volume up / volume down and power buttonuntil the AT&T screen and then release the power button doesn't get me into recovery mode.
Need help!

I've been in the exact same situation.A jig is most probably the only option.
Many people have had this problem and find that a jig is the answer.
Sent from my cappy UC'd 900mhz and UV'd running di11is rom/ Onix kernel

first try with just holding vol buttons and then inserting USB cable...hold vol buttons till its goes into download mode or the screen changes..if not then try following steps...
1. remove the usb cable, battery, sdcard, SIM.
2. wait 10 seconds, then insert the USB cable.
3. press and hold the 3 button combo while you insert the battery
4. continue to hold until phone's screen goes black twice and release power button.
5. timing is critical, it may not work the first time. Keep going until you see the COM port is connected properly.
still no Dl mode..then buy a jig or make one yourself

Right so I'm download mode now, but every time I go back to STOCK I'm re-stuck in the same loop, seems that I can't get out of it.
I got into download mode with a JIG, but still can't see my phone from my computer, so I can't run the adb shell to get it to boot in recovery mode
I'd appreciate any help you could give me!

leopic said:
Right so I'm download mode now, but every time I go back to STOCK I'm re-stuck in the same loop, seems that I can't get out of it.
I got into download mode with a JIG, but still can't see my phone from my computer, so I can't run the adb shell to get it to boot in recovery mode
I'd appreciate any help you could give me!
Click to expand...
Click to collapse
Restart your computer, use a different usb cable, a different usb port. if that doesn't work, unistall the drivers and reinstall, restart your comp and try again.

For anoyone that might find this thread, Odin 1 Click didn't work for me, so I flash back into stock using Odin (not the 1 click version, another one), here are some links that proved to be very helpful (I ended up Flashing to Serependity 6.4):
http://forum.xda-developers.com/showthread.php?t=1031749
http://www.youtube.com/watch?v=Rdn5GoRjhn0
http://forum.xda-developers.com/showpost.php?p=10056254&postcount=36
http://forum.xda-developers.com/showthread.php?t=884364
http://forum.xda-developers.com/showthread.php?t=919816
http://android-roms.info/roms/80-Serendipity
http://serendipityrom.weebly.com/download.html

I had the same problem just a few weeks ago.
The problem is once you start using 2.2 you can't use ODIN 2.1 anymore.
This is the one that worked for me I897UCJI6-OCD-REV02-Low-designgears(1)

Frawgg said:
I had the same problem just a few weeks ago.
The problem is once you start using 2.2 you can't use ODIN 2.1 anymore.
This is the one that worked for me I897UCJI6-OCD-REV02-Low-designgears(1)
Click to expand...
Click to collapse
this is actually a false statement.
i can still use odin 2.1 after flashing 2.2 roms and even stock 2.2 upgrades

Anyone thought about trying Heimdall if Odin doesn't work?

Yes, i tried using heimdall and that didn't work. I'm wondering what leopic did to fix his, if you could list the steps instead of the links that would help a lot!

stuck in att screen and battery loop
so i have tried searching for threads that match the issue i am having and some of them do and some doent so i have decided to post this. i tried flashing back to stock from a custom rom i was using. i used Odin to do this. i didn't work so i tried it again, same result. it dosent boot just sits at the captivate splash screen. i tried using a different oden tool and after that it just loops through the ATT splash screen and if i have the usb cable plugged in, it just loops the battery screen. im not even sure if it charges. i have tried everything i can find to do to get the download mode to come up and nothing, just loops. i have not tried the jig on this phone yet b/c i haven't made it to radio shack yet to pick the resistors up. is that going to be my only option?

what rom WERE you on?was it cm7 or miui?

Connection Issues? < click here for information on download and recovery mode....
information you should have had BEFORE FLASHING your phone..

i was on serinity 6.2.
i have tried all possible ways to get into d/l mode that i have found

so from the link provided
FROM A POWERED-DOWN STATE - BATTERY REMOVED
- Insert battery, then press and hold Vol+ and Vol-, then insert your USB cable..
goes into battery loop
- Press and hold Vol+/Vol-, Insert Battery, Insert USB cable
goes into battery loop
- Press and hold Vol+/Vol-, Insert USB cable, Insert Battery
goes into battery loop
- Use a 301Kohm jig between USB pins 4-5 (can be manufactured jig or homemade chain of resistors)
have not tried yet

asorendo said:
so from the link provided
FROM A POWERED-DOWN STATE - BATTERY REMOVED
- Insert battery, then press and hold Vol+ and Vol-, then insert your USB cable..
goes into battery loop
- Press and hold Vol+/Vol-, Insert Battery, Insert USB cable
goes into battery loop
- Press and hold Vol+/Vol-, Insert USB cable, Insert Battery
goes into battery loop
- Use a 301Kohm jig between USB pins 4-5 (can be manufactured jig or homemade chain of resistors)
have not tried yet
Click to expand...
Click to collapse
Sounds like a jig is in your future.

YAY. i got the resistors hook it all up and download mode loaded up. AWESOME!!!

viny2cool said:
first try with just holding vol buttons and then inserting USB cable...hold vol buttons till its goes into download mode or the screen changes..if not then try following steps...
1. remove the usb cable, battery, sdcard, SIM.
2. wait 10 seconds, then insert the USB cable.
3. press and hold the 3 button combo while you insert the battery
4. continue to hold until phone's screen goes black twice and release power button.
5. timing is critical, it may not work the first time. Keep going until you see the COM port is connected properly.
still no Dl mode..then buy a jig or make one yourself
Click to expand...
Click to collapse
You safe my Note.. Many Thanks
I thought I lost her x_x

I had this problem before
Users - I am new on this forum and I know this thread is old however I had this problem and it resolved itself. Here is how.
Background: I tried to charge my ATT Captivate using a Nokia microUSB charger that was plugged into a 120v outlet. After a few minutes of charging, the phone would no longer boot past the ATT World Phone screen. Afterwards I tried everything under sun to get a computer recognize the phone so I could reflash the ROM. Nothing worked (different computer, different USB cables, reinstalled the Samsung drivers, etc....).
Resolution of Problem: As a last ditch effort, I tried charging my phone with the same Nokia microUSB cable that appeared to cause the problem in the first placed. This time the Nokia USB cable was plugged into my computer instead of the 120v outlet. My computer had the Samsung phone drivers installed. To my amazement the phone booted up after I unplugged it from the USB cable and all is well.
I am not sure what happened but my Captivate is back with no damage. Hope this helps some poor soul who is trying desperatley to get a computer to recognize a phone that for no apparent reason will not be recognized.

Captivate not working after flashing CM10 nightly
HELP, Actually I rooted my SAMSUNG CAPTIVATE I897 and then tried to install CM10 nightly thorugh Clockwork mod recovery. And I forgot to wipe Dalvik cache. The phone got stuck in AT&T Screen for hours together, the phone was not at all responding i.e. neither to download mode or recovery mode. But yesterday the phone went into download mode .. i tried to install the stock rom for Samsung captivate. Its coming till galaxy S screen after that its switching off ... What is the possible solution. Pls Help with this as I am complete novice to this. Help will be appreciated :good:

Bricked p970

Hellow!
Today i have a Custom Rom to my Black.
But when i flash this, and press reboot in CWM the mobile turn of, and never never can turn on again.
I tried presisng vol. Up, but doesn't working.
Any ideas?

are you sure that ROM is for the Optimus Black? where did you get it from?

Is a SuperTeam ROM.
but in other way.. rom's can't kill mobiles...

Send me the link for the ROM.

http://db.tt/DNETBI5

No wonder it's not booting, you flashed a ROM that is not adjusted to P970.
I suggest you follow the repair tutorial (connect USB while holding volume up and without battery - you don't need the power button).
It should work. If it doesn't, well, you should go switch it at the store.

This rom is maked to p970! I'm SURE!

Other problem, for understand this.
Now when plug USB / AC to my black, doesn't appear battery caharging image, screen is black, and twho hours ago when y conect mobile(turned off) in screen apears a battery, but not now.
Now, you understrand more?

alorma said:
This rom is maked to p970! I'm SURE!
Click to expand...
Click to collapse
The ROM is made for P970 but it's not adjusted to it.
There's a difference.
Try this:
http://forum.xda-developers.com/showpost.php?p=14570674&postcount=21

Isn't perfect, i know, but i don't know why when I flashed my p970 dies.
I tried ALL tutorials in XDA or other forums but the problems is.. that i can't turn on mobile in S/W Upgrade mode, you know?
I press and conect via USB but p970 do nothing!

It is very strange. Are you sure that you're doing it right? It is so easy.. Remove the battery, but don't insert it again. Without the battery you press vol up button and connect the computer to the device at the same time you press it.. You'll see s/w update screen

You thing that I'm idiot, no?

Sorry.. but i tried more than 20 times this combination.
Tried Vol. Down + Power too... and nothing works.
The only way is going to store, nah?

Yes I think you are. Someone that isn't able to just press vol up while connecting pc-lg without battery, that ask others to try a rom that bricked his own phone and that is talking about combinations and power when the only combination is vol up while connecting the device ... sorry but you'r not thinking right

Well try again.
Quit battery -> Done
Press Vol. Up + Conect to PC -> Done
What hapen? Nothing!

Do you have the lg mobile support tool and lg p970 drivers installed?

Okay, I cannot boot into s/w update and no battery charging indicator.
I haven't other solutions!

It's bricked mate, you have to switch it.

You don't have to have the battery out to do this.
I bricked my phone by accidently uninstalling the launcher without having another and i did this method with the battery in and it worked fine. You have to have the LG Mobile software installed though.

I accidentally uninstalled the launcher as well. And the phone is bricked. Did i happen to find a solution to that ?

I think I just bricked my phone

I recently got a Captivate for my sister and decided to root it using AIO program from the development section. After rooting the phone and installing CWM I tried to flash Apex 9 ROM. Since I'm used to my Inspire ROMs that will automatically wipe the phone before flashing I flashed it on top of the Stock ROM which resulted on the screen becoming glitchy. Removed the battery and tried to reboot the phone but it just keeps on bootlooping. Tried to start CWM but the phone won't do it. Tried getting into download mode by holding the volume up + down button and plug in the usb cable but it freezes. I'm desperate. Has anyone else experienced something like that before?

guido3300 said:
I recently got a Captivate for my sister and decided to root it using AIO program from the development section. After rooting the phone and installing CWM I tried to flash Apex 9 ROM. Since I'm used to my Inspire ROMs that will automatically wipe the phone before flashing I flashed it on top of the Stock ROM which resulted on the screen becoming glitchy. Removed the battery and tried to reboot the phone but it just keeps on bootlooping. Tried to start CWM but the phone won't do it. Tried getting into download mode by holding the volume up + down button and plug in the usb cable but it freezes. I'm desperate. Has anyone else experienced something like that before?
Click to expand...
Click to collapse
How can I get in straight into CWM? If I could get there I could just wipe the data and flash a different ROM and I know i'd be good. But right now I don't know what else to do

Before you do anything else, stop and read the op for the rom you're trying to flash. Apex 9.x needs GB bootloaders first. Try holding vol down while inserting the usb cord.
If this works, use odin1click and flash back to stock eclair.
Unfortunately, you learned the hard way that flashing a Captivate is different from flashing an Inspire.
Please, for the sake of all of the devs, mods, and more experienced flashers, please read the posts.
And get yourself a jig.
Sent from my GT-I9000 using XDA App

bornjamerican said:
Before you do anything else, stop and read the op for the rom you're trying to flash. Apex 9.x needs GB bootloaders first. Try holding vol down while inserting the usb cord.
If this works, use odin1click and flash back to stock eclair.
Unfortunately, you learned the hard way that flashing a Captivate is different from flashing an Inspire.
Please, for the sake of all of the devs, mods, and more experienced flashers, please read the posts.
And get yourself a jig.
Sent from my GT-I9000 using XDA App
Click to expand...
Click to collapse
Yeah, sucks for me. I tried holding down the volume buttons. It just won't work. All I see is a a round sun, like when a flash website is loading, but nothing else happens. I'm reading about the jig but I already own a cheap micro usb cable, I don't have a solder. Why does it have to be so complicated? In the Inspire when something goes bad you just boot into CWM and do a nandroid restore but in this I can't even access CWM. Just tell me one thing. Is it fixable?

guido3300 said:
Yeah, sucks for me. I tried holding down the volume buttons. It just won't work. All I see is a a round sun, like when a flash website is loading, but nothing else happens. I'm reading about the jig but I already own a cheap micro usb cable, I don't have a solder. Why does it have to be so complicated? In the Inspire when something goes bad you just boot into CWM and do a nandroid restore but in this I can't even access CWM. Just tell me one thing. Is it fixable?
Click to expand...
Click to collapse
It is fixable, it just may take some legwork and a little money.
Have you tried taking out the battery, holding V+/V-, inserting USB cable, and then putting battery back in (that's the alternate froyo/eclair combo)?
If you hold Vol- and power (no USB insertion), you might get download mode (that's the GB combo).

jmtheiss said:
It is fixable, it just may take some legwork and a little money.
Have you tried taking out the battery, holding V+/V-, inserting USB cable, and then putting battery back in (that's the alternate froyo/eclair combo)?
If you hold Vol- and power (no USB insertion), you might get download mode (that's the GB combo).
Click to expand...
Click to collapse
Not working. If I plug the usb I get the damn sun. If I press the power button it will just start booting ove and over again. I think I just screwed up. I just can't understand how flashin a rom can mess up the download mode. Doesn't make any sense.

On I9000 gb bootloaders, volume down + power is download mode
Sent from my Cappy at 1.6 GHz, V6 supercharger, KAK tweaks, and 3G booster using the XDA Premium App!

guido3300 said:
Not working. If I plug the usb I get the damn sun. If I press the power button it will just start booting ove and over again. I think I just screwed up. I just can't understand how flashin a rom can mess up the download mode. Doesn't make any sense.
Click to expand...
Click to collapse
My initial guess is that you may have gotten a phone with the 3-button issue. Before you flashed, were you able to confirm that download mode and CWM were reachable with button combos?
Just to make sure we've covered all the steps, what button combination did you try to use to get to CWM? The only thing I can think that's happening right now is that the kernel you're using is for Gingerbread, and because that's not lining up right, it won't let you get to CWM. That doesn't explain the download mode issue, though, which leads me to believe it may be the 3-button phone issue.
Something you might be able to try is to grab the Android SDK and use the adb tool to force your phone into download mode. It might take a few tries, but it's possible.
The other option is to buy/make a jig. That's pretty much 100% guaranteed to get you to download mode.

jmtheiss said:
My initial guess is that you may have gotten a phone with the 3-button issue. Before you flashed, were you able to confirm that download mode and CWM were reachable with button combos?
Just to make sure we've covered all the steps, what button combination did you try to use to get to CWM? The only thing I can think that's happening right now is that the kernel you're using is for Gingerbread, and because that's not lining up right, it won't let you get to CWM. That doesn't explain the download mode issue, though, which leads me to believe it may be the 3-button phone issue.
Something you might be able to try is to grab the Android SDK and use the adb tool to force your phone into download mode. It might take a few tries, but it's possible.
The other option is to buy/make a jig. That's pretty much 100% guaranteed to get you to download mode.
Click to expand...
Click to collapse
Gosh! 3 buttons issue! What other issues could this phone have? I have the worst luck ever!
I tried all of the buttons combinations: holding volume up and down and pressing power button, volume up only and power button, volume down only and power button. Volume up and down + pluging usb. And same with one button only. I think I might get a jig and go **** myself because this phone got on my nerves. But before, how can I use adb to force the phone into download mode if there is no phone-pc conection at all? The won't even turn on. Would it work if I use it while the sun appears?

guido3300 said:
Gosh! 3 buttons issue! What other issues could this phone have? I have the worst luck ever!
I tried all of the buttons combinations: holding volume up and down and pressing power button, volume up only and power button, volume down only and power button. Volume up and down + pluging usb. And same with one button only. I think I might get a jig and go jig myself because this phone got on my nerves. But before, how can I use adb to force the phone into download mode if there is no phone-pc conection at all? The won't even turn on. Would it work if I use it while the sun appears?
Click to expand...
Click to collapse
I know this is exceptionally frustrating - I've been there myself. All I can say is to be persistent, and you'll get it back to good working order.
When you plug the phone into your computer's usb port, as long as the phone shows some sort of response (even if it's just the charge screen), it's likely to have a connection for data use as well. If you can get your phone bootlooping while you have ADB open, you might be able to issue the "adb reboot download" command in that brief window and get to where you're going without a jig.
One other item to try - One Click Unbrick. With this one, you'd start the phone up bootlooping and run it (I think). With any luck, it might get you somewhere you can get to download mode (or have a wider window with ADB).
And it probably won't work while the sun's showing, as it hasn't really booted up yet, although there's definitely no harm in trying.

i was reading over this and i got my phone into download mode but odin doesnt work

Seikei925 said:
i was reading over this and i got my phone into download mode but odin doesnt work
Click to expand...
Click to collapse
Are you getting your phone to download mode first, then opening Odin on your computer, and then connecting it?

jmtheiss said:
Are you getting your phone to download mode first, then opening Odin on your computer, and then connecting it?
Click to expand...
Click to collapse
Yes i have done that

Seikei925 said:
Yes i have done that
Click to expand...
Click to collapse
Have you tried changing the USB port you're plugging into? It would be best to use one that's directly connected to the motherboard (not on the front of the PC).
Also, are you using a PC, Mac, or Linux machine?

jmtheiss said:
Have you tried changing the USB port you're plugging into? It would be best to use one that's directly connected to the motherboard (not on the front of the PC).
Also, are you using a PC, Mac, or Linux machine?
Click to expand...
Click to collapse
Im using a PC Windows 7, also i cannot boot into CWM, but phone can boot up fine just not recognized by the computer.

Seikei925 said:
Im using a PC Windows 7, also i cannot boot into CWM, but phone can boot up fine just not recognized by the computer.
Click to expand...
Click to collapse
Have you tried reinstalling the drivers on the computer side? If it's not recognizing it at all, that's one possibility. Another is a bad USB cable.

jmtheiss said:
Have you tried reinstalling the drivers on the computer side? If it's not recognizing it at all, that's one possibility. Another is a bad USB cable.
Click to expand...
Click to collapse
Try installing drivers from the AIO toolbox, it worked great for me
Sent from my Cappy at 1.6 GHz, V6 supercharger, KAK tweaks, and 3G booster using the XDA Premium App!

jmtheiss said:
Have you tried reinstalling the drivers on the computer side? If it's not recognizing it at all, that's one possibility. Another is a bad USB cable.
Click to expand...
Click to collapse
Tried re installing drivers several times and have used 4 different USB cables.

Seikei925 said:
Tried re installing drivers several times and have used 4 different USB cables.
Click to expand...
Click to collapse
What Rom/Kernel are you on?

My phone is in the same condition at this moment, and also has the 3 keys combination locked, im w8ing for get a profesional jig because i made one and didnt work. But if the pc recognize the phone u can try with the One click unbrick as jmtheiss said.

[HELP PLZ] bricked ACE, no USB connection

Hi all,
i've bricked my ACE by flashing it to CM not by Odin but by pressing <Install from ZIP> in the recovery mode ...
After it i think the filesystem was destroyed (got errors like "E:failed to mount /system (Invalid argument)").
I would flash it again but this time by Odin, and first of all flash CWM... but the issue is my ACE is not recognized
by Windows when connected to USB. I have tried reinstalling Kies, Samsung drivers without Kies, different USB ports and also
different PCs -> no result :crying:
Is there a way to recover the filesystem without using USB? Or how can i connect that damn thing to USB with properly recognize?
I have tried to give ACE to Samsung service, but all that they wrote was: "... irreparable damage due to damp ..." WTF?!?!
Please someone try to help me.
Thanks a lot.

You can't do anything if even Samsung gave up on it (they can revive almost all of there phones) .
However you could post this info so someone else does not make the same mistake.
1. Full phone model info
2. ROM you were originally on
3. Which recovery you used
4. Odin version
5. Which CM you flashed
6. What carrier(operator) are you on (the phone might had been locked)

I have managed to check if the phone is actually working or not even in the particular case you mention where it does not seem to turn on at all.
1)Kill KiesTrayAgent.
2)Remove the battery and usb cable.
3)Plug usb cable (also to the computer).
4)Keep pressed all buttons; Vol Up, Vol Down, Home and Power.
5)Replace the battery.
6)Let go of the buttons.
7)Odin recognizes the phone but will not connect to it.
If it does not work (the key combination might be wrong), try again with Up, Home and Power or Down, Home and Power.
One of those 3 combinations worked for me and realized that the phone was hard bricked.
Eventually I managed to revive it (although not myself)

The only thing that you may do is press VolDown + menu + powerbutton with odin . It will open the download mode. If it not work, your motherboard is burned!
Sorry for my bad english.

I think you used stock recovery. U need custom extended recoveries like CWM 5 to flash roms.
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