Bricked Captivate Assistance

[davenz]

Hi team. I've searched the forums for answers and even though I've read a thousand excellent posts, none (of course) fit my situation specifically. I'll try to be as brief as I can.

My AT&T-branded, Chinese imported Captivate was only three weeks old when I first soft-bricked it trying to do an update using Kies (thanks Samsung!) and then because it would only go into download mode, I tried using Odin to reflash back to where I was. The flash didn't take and I was left with nothing; no charging icon, no computer recognition (Windows 7 Ultimate 32-bit using the generic Samsung Android phone drivers downloaded from somewhere on XDA) and no boot/download mode; in other words, hard-bricked and nothing working.

I bought myself a riffbox and spent a long time reading various forum posts about using it; I own a computer repair company and have flashed a million motherboard, modem, router and other firmwares over the past 15 years and have even done a Samsung S2 and a Galaxy Pad in the last week so am reasonably comfortable with the process, even though I'm not hugely experiences yet with the riffbox.

Anyway, I imported and soldered the recommended panasonic socket to the JTAG point and made myself some PCB adapters to fit and break out the Riffbox cables. That's all done and dusted and today I used the Riffbox on my Captivate for the first time, apparently detecting the 'dead body' and flashing the ROM successfully (the box and software would soon tell me if something wasn't right). While I hoped it would, I didn't expect my phone to boot straight away, but did expect it to go into download mode, as suggested in the JTAG literature with the Riffbox. This is where it all gets bent out of shape.

I always get into download mode with my Captivate by dropping the battery and then replugging with the Vol + and - buttons held. I have tried all methodfs I can find on XDA but all either don't work or do the same thing, that is, my phone enters download mode for about ten seconds, then drops out again. During that time, all USB devices 'hang' while the computer tries to fathom what the hell is connected there and Andy just holds his shovel and laughs at me before disappearing once again into the inky blackness of a dead screen. The device manager shows an unknown device detected before letting it go again and mouse and keyboard control resumes. Weird. I thought it might be a flat battery but I've charged that so it has plenty of juice. When plugged via USB, there is 4 volts at the battery terminals (measured with the battery out) so it would charge when plugged in (wall wart or USB cable) even though no icon shows.

Like any good tech I went back and reflashed using both the recommended ROM and 'last resort' option in the Riffbox (Clone Gremlin Zone flash) and the phone still does the same thing; enters download mode then off. I made up a USB dongle/jig using exactly 301 kilohms of resistance (measured digitally) across pins 4 and 5 and followed the various videos/explanations to get into download mode that way but this does not work on my phone, leading me to think something else is broken.

Bottom line is that it seems the phone doesn't have to be connected via USB to enter download mode but if Windows cannot load the phone, then I cannot use Odin or Heimdall to reflash it. I don't think it is drivers because it worked OK before the brick (well, not perfectly but it did connect and I had USB drive support etc.) and besides, I have tried reinstalling drivers to no avail. Can anyone suggest anything I can try (shipping it to some guy in the USA is not the answer I'm going for here so please don't waste your time or mine). As far as I can see, I have done everything the people here suggest and the JTAG/Riffbox instructions to the letter but it just does not want to happen. I'd rather not lose the phone and since I eventually want to offer this sort of service in my business, I want to get it to work on my own phone for my own pride and knowledge.

Cheers from Christchurch New Zealand.

 

[davenz]

Follow up.

Hi team. I've searched the forums for answers and even though I've read a thousand excellent posts, none (of course) fit my situation specifically. I'll try to be as brief as I can.

My AT&T-branded, Chinese imported Captivate was only three weeks old when I first soft-bricked it trying to do an update using Kies (thanks Samsung!) and then because it would only go into download mode, I tried using Odin to reflash back to where I was. The flash didn't take and I was left with nothing; no charging icon, no computer recognition (Windows 7 Ultimate 32-bit using the generic Samsung Android phone drivers downloaded from somewhere on XDA) and no boot/download mode; in other words, hard-bricked and nothing working.

I bought myself a riffbox and spent a long time reading various forum posts about using it; I own a computer repair company and have flashed a million motherboard, modem, router and other firmwares over the past 15 years and have even done a Samsung S2 and a Galaxy Pad in the last week so am reasonably comfortable with the process, even though I'm not hugely experiences yet with the riffbox.

Anyway, I imported and soldered the recommended panasonic socket to the JTAG point and made myself some PCB adapters to fit and break out the Riffbox cables. That's all done and dusted and today I used the Riffbox on my Captivate for the first time, apparently detecting the 'dead body' and flashing the ROM successfully (the box and software would soon tell me if something wasn't right). While I hoped it would, I didn't expect my phone to boot straight away, but did expect it to go into download mode, as suggested in the JTAG literature with the Riffbox. This is where it all gets bent out of shape.

I always get into download mode with my Captivate by dropping the battery and then replugging with the Vol + and - buttons held. I have tried all methodfs I can find on XDA but all either don't work or do the same thing, that is, my phone enters download mode for about ten seconds, then drops out again. During that time, all USB devices 'hang' while the computer tries to fathom what the hell is connected there and Andy just holds his shovel and laughs at me before disappearing once again into the inky blackness of a dead screen. The device manager shows an unknown device detected before letting it go again and mouse and keyboard control resumes. Weird. I thought it might be a flat battery but I've charged that so it has plenty of juice. When plugged via USB, there is 4 volts at the battery terminals (measured with the battery out) so it would charge when plugged in (wall wart or USB cable) even though no icon shows.

Like any good tech I went back and reflashed using both the recommended ROM and 'last resort' option in the Riffbox (Clone Gremlin Zone flash) and the phone still does the same thing; enters download mode then off. I made up a USB dongle/jig using exactly 301 kilohms of resistance (measured digitally) across pins 4 and 5 and followed the various videos/explanations to get into download mode that way but this does not work on my phone, leading me to think something else is broken.

Bottom line is that it seems the phone doesn't have to be connected via USB to enter download mode but if Windows cannot load the phone, then I cannot use Odin or Heimdall to reflash it. I don't think it is drivers because it worked OK before the brick (well, not perfectly but it did connect and I had USB drive support etc.) and besides, I have tried reinstalling drivers to no avail. Can anyone suggest anything I can try (shipping it to some guy in the USA is not the answer I'm going for here so please don't waste your time or mine). As far as I can see, I have done everything the people here suggest and the JTAG/Riffbox instructions to the letter but it just does not want to happen. I'd rather not lose the phone and since I eventually want to offer this sort of service in my business, I want to get it to work on my own phone for my own pride and knowledge.

Cheers from Christchurch New Zealand.

Since none of the gurus here bothered to respond I'll do it myself in case someone else finds the same issue.

Turns out the battery was faulty; I replaced it and succeeded in getting the phone into download mode with both the jig and the usual methods. Then the computer would not recognize the phone, the dreaded 'unknown device' in the device manager. I was using the factory cable that came with the phone but tried a third-party one I had for a Chicom HTC copy I had lying around and this allowed the phone to be recognized by Windows (go figure). I used Odin to unbrick/reflash and it is all go now, interestingly both cables now work for the phone within Windows so it is always worth trying something even though it makes no real sense to do so.

 

[-SGA-]

Darn, that is exactly what I was going to say to do!

Next time, try a rotating disc nebulizer, which you can redesign with respect to the principle parameters that determine its analytical performance. The flow pattern of the aerosols you will attain can be optimized by altering the shape of the inner chamber for optimum aerodynamic characteristics. Furthermore, the optimum angle of impact needs to be established using particle size distribution and mass transport efficiency as criteria. Any analytical characteristics you determine will be through monitoring the emission signal from an aqueous standard. The accuracy has to be assessed by using reference steel and iridium samples.

It is easy to construct, and the fundamental component is a rotating disc onto which a liquid sample is introduced. It should require no additional spray chamber and be easy to operate effectively. Once in operation it should produce aerosols with mean droplet diameters of approximately 0.50 µm.

You may then utilize inductively coupled plasma optical emission spectrometry to determine the defect.:good:

 

[4-2ndtwin]

^
ROFLMAO !!!!



Sent from my SGH-I897 using xda premium

 

[davenz]

Rotating Disc Nebulizer

Darn, that is exactly what I was going to say to do!

Next time, try a rotating disc nebulizer, which you can redesign with respect to the principle parameters that determine its analytical performance. The flow pattern of the aerosols you will attain can be optimized by altering the shape of the inner chamber for optimum aerodynamic characteristics. Furthermore, the optimum angle of impact needs to be established using particle size distribution and mass transport efficiency as criteria. Any analytical characteristics you determine will be through monitoring the emission signal from an aqueous standard. The accuracy has to be assessed by using reference steel and iridium samples.

It is easy to construct, and the fundamental component is a rotating disc onto which a liquid sample is introduced. It should require no additional spray chamber and be easy to operate effectively. Once in operation it should produce aerosols with mean droplet diameters of approximately 0.50 µm.

You may then utilize inductively coupled plasma optical emission spectrometry to determine the defect.:good:

This is excellent advice and ordinarily I would agree 110%, however I have found that the later model Rotating Disc Nebulisers have an inherent fault in the flange valve regulator, which in turn affects the lead mercury ratio and results in even harder bricking of susceptible devices. If, however, you feather an older nebulizer with the updated underhead/overhang mod then even the nastiest conflibulator inversion is easily bypassed. Just for information's sake...

 

[-SGA-]

This is excellent advice and ordinarily I would agree 110%, however I have found that the later model Rotating Disc Nebulisers have an inherent fault in the flange valve regulator, which in turn affects the lead mercury ratio and results in even harder bricking of susceptible devices. If, however, you feather an older nebulizer with the updated underhead/overhang mod then even the nastiest conflibulator inversion is easily bypassed. Just for information's sake...

OMG, that was some seriously original stuff! Anyone try Googling "conflibulator inversion"? This is the only result, lol!

Glad to hear your flashing worked out, I think the process you followed is a lot more in depth than many of us would ever undertake...

 

[davenz]

OMG, that was some seriously original stuff! Anyone try Googling "conflibulator inversion"? This is the only result, lol!

Glad to hear your flashing worked out, I think the process you followed is a lot more in depth than many of us would ever undertake...

Well, I wasn't about to throw away 350 bucks (our money, which is worth about three chickens and a bag of salt in anyone else's currency) and since I pride myself in being able to fix anything, the challenge was set in motion when I discovered (via this excellent resource) that the Captivate was a) hard to brick (I found it pretty easy to be honest) and b) the hardest to unbrick.One poster claimed that if you can unbrick a Captivate you can unbrick anything, so I had to give it a go. After all, what did I have to lose?

As I mentioned, I intend to diversify my computer repair business into mobile gadget repairs anyway and I can think of nothing more noble than unbricking phones. I learned an incredible amount on the way through the whole process and while just having the tools doesn't make me an expert, I'm happy to work my way toward that goal and if I help others on the way, well, it's a win/win.

Thanks for the entertaining posts and cheers from Christchurch, New Zealand.

 

[wwcjr91]

I sure hope you tried locating the flux capacitor before going through all that work. Could have saved you from having to go through the whole "Seismic Declan Brown Eyed Goose" process.

 

[laughingT]

Glad to hear you are de-worse-ifying your biz.

You should add the left-handed skyhook-bipolar-transmogifier-probe to your tools. I am told its use dramatically improves GPS performance, and provides immediate position locks to some position, however distant from where you thought you were.

-written whilst sipping high temperature psychoactive botanical filtrate in my ceramic gravitational containment vessel with plalangeal bracket (aka coffee in my mug).

Sent from my SAMSUNG-SGH-I897 using xda app-developers app

 

[davenz]

Thanks

I sure hope you tried locating the flux capacitor before going through all that work. Could have saved you from having to go through the whole "Seismic Declan Brown Eyed Goose" process.

Now you tell me! The entire Seismic Declan Brown Eyed Goose scenario had me stumped there for a while but after referencing 'Nocturnal Urinary Releases and other Stories', the famous Declan-decoding text by I. P. Nightly, a liberal application of lubricating gel in all the right places had the whole thing well in hand...

And as for the left-handed skyhook-bipolar-transmogifier-probe, that's again where I went wrong with a newbie mistake. Sadly I ordered the right-handed skyhook-bipolar-transmogifier-probe and of course it didn't moglify the selindicular quadronizer at all. In fact, it broke it off at the chalisticator and left me up the paddle without a creek, so to speak. Nevertheless, a little old-fashioned luck and a tap with the old thorificating polookanizer soon had things back on track.

Now all I need is another Speckled Jim for the halitosinifer (do you REALLY want to know?) and all will be well in my world (which is not like other worlds if posts on XDA are anything to go by...)

Thanks all for your excellent input, it has been a journey through the looking glass!

 

[strategist99]

well i really liked the "brilliantly" thought of posts about the legendary tools mentioned... hehe

i was really looking forward to more comments to lighten up the mood


pls keep posting

3 cheers

btw i am also stuck at dead hard brick on my cappy


regards

 

[Keletho478]

alot of youtube videos provide help on unbricking

 

[adfree]

...'last resort' option in the Riffbox (Clone Gremlin Zone flash)

Please.

Someone know what Gremlin Zone exactly is?
Location in OneNAND ? Or somewhere else?

Maybe adresses or dump of Gremlin Zone would be nice.

Thanx in advance.

Best Regards

 

[BWolf56]

Please.

Someone know what Gremlin Zone exactly is?
Location in OneNAND ? Or somewhere else?

Maybe adresses or dump of Gremlin Zone would be nice.

Thanx in advance.

Best Regards

I think the person to ask would be AdamOutler. You're asking for some deep knowledge in general