d821 flash not done

Welcome to Octoplus/Octopus Box LG Software version 2.1.0
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Checking data…OK
Platform: LG Qualcomm
Selected port: COM1
Selected model: D821
Reading info…Failed!
Could not detect mode!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM1
Selected model: D821
Reading info…Failed!
Could not detect mode!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM1
Selected model: D821
Reading info…Failed!
Could not detect mode!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM1
Selected model: D821
Reading info…OK
Mode: Fastboot
Model ID: hammerhead D821(H) 16GB
Device serial number: 048a15cdf0c75ec7
Hardware: rev_11
Bootloader lock state: locked
Unlocking…Please, reconnect the phone in Normal mode!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM1
Selected model: D821
Reading info…Failed!
Could not detect mode!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g8a80a0e (android-
build@vpbs1.mtv.corp.google.com) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Thu Feb 5 04:14:26 UTC 201
Android version: 5.1
Hardware: Qualcomm MSM 8974 HAMMERHEAD (Flattened Device Tree)
ARMv7 Processor rev 0 (v7l)
Initializing ADB…OK
Waiting for phone…OK
Switching to Fastboot mode…OK
Unlocking Bootloader…
Select "Yes" on phone screen and press "Power" button.
Please perform the following steps:
1. Wait while the phone will turn on
2. Reboot the phone
3. Enable "USB debugging" Mode
4. Connect the cable and check, whether ADB interface has appeared in
PC Device Manager
5. Press "Ok" button.
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…OK
Switching to Fastboot mode…OK
Bootloader is unlocked.
Writing Bootloader…OK
Please, wait while the phone will turn on and press "Ok" button.
Trying to enable Diagnostics ports…
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…OK
Checking root access…
Initializing ADB…OK
Waiting for phone…OK
Phone is not rooted.
Please, root the phone manually!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…
Initializing ADB…OK
Waiting for phone…OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g8a80a0e (android-
build@vpbs1.mtv.corp.google.com) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Thu Feb 5 04:14:26 UTC 201
Android version: 5.1
Hardware: Qualcomm MSM 8974 HAMMERHEAD (Flattened Device Tree)
ARMv7 Processor rev 0 (v7l)
Initializing ADB…OK
Waiting for phone…OK
Switching to Fastboot mode…OK
Unlocking Bootloader…
Bootloader is unlocked.
Writing Bootloader…OK
Please, wait while the phone will turn on and press "Ok" button.
Trying to enable Diagnostics ports…
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…
Please, reconnect phone, enable USB debugging, and try again.
To enable USB debugging, please perform the following steps:
1. Disconnect cable
2. Install LG Android ADB drivers
3. Go to "Settings" -> "About phone" -> "Software information"
4. Click on Build number 5 times
5. Enable "Settings" -> "Developer options" -> "USB debugging" option
6. Connect the cable and check, whether ADB interface has appeared in
PC Device Manager.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…OK
Mode: Fastboot
Model ID: hammerhead D821(H) 16GB
Device serial number: 048a15cdf0c75ec7
Hardware: rev_11
Bootloader lock state: unlocked
Opening "LGD821AT-00-V10b-NXS-OCT-31-2013-KRT16M-USER-16G+
0.oct"…OK
Initializing flash…Failed!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…OK
Mode: Fastboot
Model ID: hammerhead D821(H) 16GB
Device serial number: 048a15cdf0c75ec7
Hardware: rev_11
Bootloader lock state: unlocked
Opening "LGD821AT-00-V10b-NXS-OCT-31-2013-KRT16M-USER-16G+
0.oct"…OK
Initializing flash…Failed!
——————————————————————————–
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g8a80a0e (android-
build@vpbs1.mtv.corp.google.com) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Thu Feb 5 04:14:26 UTC 201
Android version: 5.1
Hardware: Qualcomm MSM 8974 HAMMERHEAD (Flattened Device Tree)
ARMv7 Processor rev 0 (v7l)
——————————————————————————–
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…
Initializing ADB…OK
Waiting for phone…OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g8a80a0e (android-
build@vpbs1.mtv.corp.google.com) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Thu Feb 5 04:14:26 UTC 201
Android version: 5.1
Hardware: Qualcomm MSM 8974 HAMMERHEAD (Flattened Device Tree)
ARMv7 Processor rev 0 (v7l)
Initializing ADB…OK
Waiting for phone…OK
Switching to Fastboot mode…OK
Bootloader is unlocked.
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…OK
Mode: Fastboot
Model ID: hammerhead D821(H) 16GB
Device serial number: 048a15cdf0c75ec7
Hardware: rev_11
Bootloader lock state: unlocked
Opening "LGD821AT-00-V10b-NXS-OCT-31-2013-KRT16M-USER-16G+
0.oct"…OK
Initializing flash…Failed!
——————————————————————————–
Checking data…OK
Platform: LG Qualcomm
Selected port: COM6
Selected model: D821
Reading info…
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g8a80a0e (android-
build@vpbs1.mtv.corp.google.com) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Thu Feb 5 04:14:26 UTC 201
Android version: 5.1
Hardware: Qualcomm MSM 8974 HAMMERHEAD (Flattened Device Tree)
ARMv7 Processor rev 0 (v7l)
Initializing ADB…OK
Waiting for phone…OK
Switching to Fastboot mode…OK
Unlocking Bootloader…
Bootloader is unlocked.
Writing Bootloader…OK
Please, wait while the phone will turn on and press "Ok" button.
Trying to enable Diagnostics ports…
Initializing ADB…OK
ADB Server was found. Trying to kill…
Waiting for phone…OK
Checking root access…
Initializing ADB…OK
Waiting for phone…OK
Phone is not rooted.
Please, root the phone manually!
solution?