[Kindle Fire 2 Android Development] mohibr:
Some great news!

First off, a very big thank you to [MENTION=5378103]kurohyou[/MENTION] and [MENTION=5112866]stunts513[/MENTION] for all their efforts, all their suggestions in all their posts helped me get to the end, thank you guys!

Right, here's my story, had a Kindle Fire 2 flashed with the wrong bootloader a few months back, forgot about the device till 2 days back when i came across the

original post by kurohyou, with the idea of getting direct access to the eMMC and flashing the bootloader, then followed up on his post with the how to's, decided to

give it a shot.

Started off with the soldering on the Kindle motherboard, it was a pain, but what helped in attaching the solder to the points was a good paste, i used solder paste on

the points, then dabbed a little solder with flux on the tip of the soldering iron and kept the tip on the point for a few seconds at a time, sometimes more than once,

once all the points were tinted, i tinted the ends of the cables i was going to use with the same solder with flux, the cables i used were from an old HDMI cable which

i stripped up, they were thin and flexible. For the SD card reader, i used one similar to kurohyou's, except i didn't have the points on the other side, so i soldered

the cables directly to the legs of the SD reader slot without removing the slot, also, i did not short ground and CD_SW, instead i just left a blank SD adapter in the

slot, which did the trick.

Now once everything was soldered on, i used the ubuntu-12.04.3-desktop-i386.iso to create a UBUNTU live CD and booted from that, once in UBUNTU attached the SD reader

and voila, eMMC detected! Now to get to the flashing of the bootloader, i read a numerous amount of posts suggesting to flash the u-boot.bin file from the original

Kindle firmware, and the suggested version was the 10.2.4, so i downloaded the firmware (in .bin format) from the amazon site, right clicked on the file, open with,

used Winrar, there extracted the u-boot.bin file. To flash the bootloader i used the dd command suggested by stunts513, which was:

sudo dd bs=1 if=u-boot.bin of=/dev/sdb2

The first time i ran that command, i had an input/output error, i ran the command another 3 or 4 times till it flashed successfully, i got an error message when

ejecting the SD, so shut down the machine, detached the SD reader and connected up the Kindle, no life, tried usb, fastboot and mains charger, no signs of life.

Disconnected everything and attached the SD reader again, now UBUNTU recognized the eMMC, but as 1 disk with no partitions! So thought ok, il reboot the system and try

again, tried all the different USB slots i had on the laptop, all giving the same result, so i left the SD reader out for a few minutes, while i figured out what to do

next, then when i re-attached it, it picked it up again with all the correct partitions, however, nothing was mounted, i read stunts513's suggestion of unmounting to

be safe, so i though that was fine, ran the dd command again and same thing, input/output error, tried a few times and it flashed successfully, again detached and

connected up the Kindle, no signs of life, didn't really know what to do next, decided to ponder on the Kindle folder i had on my drive, with the backups, there i found 'otter2-u-boot-prod-10.2.4' which was 227KB, the same size as u-boot.bin, thought lets give this file a go, again reconnected up till all the partitions were detected correctly and ran the dd command with otter2-u-boot-prod-10.2.4.bin, detached everything and connect the Kindle up, plugged in the USB and got an orange light!

A few people got the orange light without the kindle actually booting the OS, so never had my hopes up too high, let the kindle charge for a few mins and then it started up, stuck on the kindle logo boot loop, as i started reading the forum, i came across a post about the kindle boot loop, where stunts513 suggested flashing via fast boot, i attached the kindle to the fast boot cable and was waiting for the laptop to recognize the kindle, suddenly i get a blank screen, i left it like that for a few minutes then decided to press the power button, no response, i kept the power button pressed in till i saw the kindle logo again, took a few seconds but this time, it booted the OS! I don't know if the fast boot cable had anything to do with that, im sure stunts513 and kurohyou will be able to shed some more light on that.

My apologies for the long post, but im trying to put down as much detail as possible to help all the other guys with the bricked Kindle fire 2's, im also attaching the boot file i used.

Again, a big thank you to kurohyou and stunts513 for all their efforts!