[HTC EVO 3D] sercangogercin:
Instructions
Boot the linux box and download the appropriate package for the device.
WARNING: IT IS DEVICE SPECIFIC. DO NOT USE THE GSM VERSION ON A CDMA EVO AND VICE VERSA. SAME GOES FOR THE INSTRUCTIONS
Extract the package in the home directory
Open up a terminal
Remove SIM, microSD card and battery and connect the device using the USB cable. This procedure must be done without battery
Detect the device using the script provided. Type this in the terminal
Code:
./brickdetect.sh
You should get something like sdX. We are interested on that "X"
Unplug the usb cable from the device
Backup the hboot currently in the phone by using this command. Plug the device in ONLY when asked to
Code:
sudo ./emmc_recover --backup b_hboot.img --device /dev/sdX12
Replace the "X" with the letter the script gave you
Follow the on-screen instructions from emmc_recover
Hexdump the b_hboot to check the hboot version
Code:
hexdump -C b_hboot.img |less
The output should be like this:
Code:
00000000 05 00 00 00 03 00 00 00 00 00 00 00 00 00 10 40 |...............@|
00000010 d8 fc 0f 00 d8 fb 0f 00 d8 fb 1f 40 00 01 00 00 |...........@....|
00000020 d8 fc 1f 40 00 00 00 00 12 00 00 ea 31 2e 34 39 |...@........1.49|
00000030 2e 31 31 30 37 00 00 00 38 32 36 30 20 53 50 4c |.1107...8260 SPL|
00000040 00 00 00 00 00 f0 20 e3 53 48 49 50 00 00 00 00 |...... .SHIP....|
00000050 00 f0 20 e3 00 f0 20 e3 48 42 4f 4f 54 2d 38 32 |.. ... .HBOOT-82|
00000060 36 30 00 00 00 f0 20 e3 65 64 62 61 38 31 32 66 |60.... .edba812f|
This is the typical hex of a hboot. We are interested to check if that is the hboot partition and if it is, to get to know the version. In this case it is 1.49
If in the above step you failed to identify the hboot, unplug all devices connected to that pc, reboot and try again
Unplug the device
Check again it is the right version, because if you do a mistake here, you won't be able to go back
You can only flash the same version as the one in the device.

!!!!!DO NOT ATTEMPT TO FLASH ANOTHER VERSION OR DOWNGRADE!!!IT HAS BEEN PROVEN FATAL!!!!
Flash the hboot on the device. Replace "V.VV" with hboot version (eg. 1.49) and "X" with the one you got from the detect script. Plug the device in ONLY when asked to
Code:
sudo ./emmc_recover --flash shotrUV.VV.nb0 --device /dev/sdX12 --backupafter hboot_f.nb0
Follow the on-screen instructions from emmc_recover. A successful flash should have this output:
Code:
511+1 records in
511+1 records out
1047808 bytes(1.0 MB) copied
Unplug the device, put SIM, microSD card and battery in and power on
Congratulations, the device is unbricked.
FLASH THE RUU IMMEDIATELY AFTER RECOVERING!! The device will be unstable after the recovery if you don't flash it.

Notes on the procedure:
If the device doesn't power on, get a copy of the hboot_f.nb0 and b_hboot.img (should be located in the home directory) and contact us
The connection between the device and the pc will be unstable, and will time out. You have to be quick when doing the above, specially while flashing. If the connection times out don't panic, just unplug and replug the device
Unity and automount are known to cause issues. We recommend getting rid of both
USB3 ports do not work properly. Please plug the device in a USB2 port

i tried this: ./brickdetect.sh but there is no sdX ?