D821 Nexus 5 Switching to Serial Port... failed [Solved] - GSM-Forum

odeltacygnuz · 11-22-2014, 16:12

I need repair imei for this phone, but no sucess:

D821 Nexus 5

Quote:

Welcome to Octoplus/Octopus Box LG Software version 1.7.5
--------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM5
Selected model: D821
Reading info...
Initializing ADB...OK
Waiting for phone...OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g88fbc66
Android version: 5.0
Hardware: ARMv7
After perform Repair IMEI operation, 3G/4G network will be unavailable!
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
Waiting for phone...OK
Checking root access...
Phone is already rooted.
Diagnostics ports are enbled!
Switching to Serial Port...
Failed!

Octopus box · 11-22-2014, 16:46

Hello.

Your phone has Android 5.0 and currently we research the phone, in order to adapt solutions for correct work with this new version of OS.

As an option, You can install "LG United Mobile Driver v 3.10.1" and then try to perform "Unlock" operation.

lish-hike · 01-12-2015, 13:12

have any salutation for android 5 solutions with me same problem

Octopus box · 01-12-2015, 13:24

Yes, look here: http://forum.gsmhosting.com/vbb/f799.../#post10779038.

azur_mlaco · 01-27-2015, 15:34

i try new driver but still smae error.
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM21
Selected model: D820
Reading info...Failed!
Could not detect mode!
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM21
Selected model: D820
Reading info...Failed!
Could not detect mode!
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM21
Selected model: D820
Reading info...Failed!
Could not detect mode!
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM21
Selected model: D820
Reading info...
Initializing ADB...OK
Waiting for phone...OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g88fbc66 (android-
[email protected]) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Mon Oct 20 22:18:31 UTC 201
Android version: 5.0.1
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
Waiting for phone...OK
Checking root access...
Phone is not rooted.
Sending exploit...OK
Checking root access...
Phone is not rooted.
Could not get root access.Failed!
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM21
Selected model: D820
Reading info...Failed!
Could not detect mode!
--------------------------------------------------------------------------------
Checking data...OK
Platform: LG Qualcomm
Selected port: COM21
Selected model: D820
Reading info...
Initializing ADB...OK
Waiting for phone...OK
Model ID: Nexus 5
Firmware version:
Kernel version: 3.4.0-g88fbc66 (android-
[email protected]) (gcc version 4.7 (GCC) ) #1 SMP
PREEMPT Mon Oct 20 22:18:31 UTC 201
Android version: 5.0.1
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
Waiting for phone...OK
Checking root access...
Phone is already rooted.
Diagnostics ports are enbled!
Switching to Serial Port...
Failed!

Octopus box · 01-27-2015, 15:37

Use the latest Software version (Software).

Also, look here:
http://forum.gsmhosting.com/vbb/f799.../#post10797132,
http://forum.gsmhosting.com/vbb/f799.../#post10766821,
http://forum.gsmhosting.com/vbb/f799.../#post10724651.

alien4u · 01-27-2015, 17:17

Quote:

Originally Posted by odeltacygnuz

I need repair imei for this phone, but no sucess:

D821 Nexus 5

1- Downgrade, download Android 4.4.4 from here: https://developers.google.com/android/nexus/images

2-Install the last drivers (see post above)

3-Root
- Boot in Fastboot mode(volum down and power)
- Unlock bootloader, console(fastboot oem unlock)(fallow on screen directions).
- Flash recovery(boot in fastboot mode) from console:
fastboot flash recovery openrecovery-twrp-2.8.4.0-hammerhead.img
- Install supersu from Recovery UPDATE-SuperSU-v2.40.zip

Now enable diag port:
adb shell
su
setprop sys.usb.config diag,adb

Now repair IMEI, Unlock or anything you want, no more Diag Port Failed.

You have to enable diag port every time you reboot the phone.

Good Luck.

M.S.khan · 01-29-2015, 07:57

Quote:

Originally Posted by alien4u

1- Downgrade, download Android 4.4.4 from here: https://developers.google.com/android/nexus/images

2-Install the last drivers (see post above)

3-Root
- Boot in Fastboot mode(volum down and power)
- Unlock bootloader, console(fastboot oem unlock)(fallow on screen directions).
- Flash recovery(boot in fastboot mode) from console:
fastboot flash recovery openrecovery-twrp-2.8.4.0-hammerhead.img
- Install supersu from Recovery UPDATE-SuperSU-v2.40.zip

Now enable diag port:
adb shell
su
setprop sys.usb.config diag,adb

Now repair IMEI, Unlock or anything you want, no more Diag Port Failed.

You have to enable diag port every time you reboot the phone.

Good Luck.

Very helpful post for me bcz my problem solved with this guide

11-22-2014, 16:46	#2 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,847 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,412	Hello. Your phone has Android 5.0 and currently we research the phone, in order to adapt solutions for correct work with this new version of OS. As an option, You can install "LG United Mobile Driver v 3.10.1" and then try to perform "Unlock" operation. Last edited by Octopus box; 12-16-2014 at 21:44.

01-27-2015, 15:34	#5 (permalink)
azur_mlaco Freak Poster Join Date: Jun 2005 Age: 41 Posts: 112 Member: 152191 Status: Offline Thanks Meter: 14	need help i try new driver but still smae error. -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM21 Selected model: D820 Reading info...Failed! Could not detect mode! -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM21 Selected model: D820 Reading info...Failed! Could not detect mode! -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM21 Selected model: D820 Reading info...Failed! Could not detect mode! -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM21 Selected model: D820 Reading info... Initializing ADB...OK Waiting for phone...OK Model ID: Nexus 5 Firmware version: Kernel version: 3.4.0-g88fbc66 (android- [email protected]) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Mon Oct 20 22:18:31 UTC 201 Android version: 5.0.1 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 Waiting for phone...OK Checking root access... Phone is not rooted. Sending exploit...OK Checking root access... Phone is not rooted. Could not get root access.Failed! -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM21 Selected model: D820 Reading info...Failed! Could not detect mode! -------------------------------------------------------------------------------- Checking data...OK Platform: LG Qualcomm Selected port: COM21 Selected model: D820 Reading info... Initializing ADB...OK Waiting for phone...OK Model ID: Nexus 5 Firmware version: Kernel version: 3.4.0-g88fbc66 (android- [email protected]) (gcc version 4.7 (GCC) ) #1 SMP PREEMPT Mon Oct 20 22:18:31 UTC 201 Android version: 5.0.1 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 Waiting for phone...OK Checking root access... Phone is already rooted. Diagnostics ports are enbled! Switching to Serial Port... Failed!

01-12-2015, 13:12	#3 (permalink)
lish-hike Freak Poster Join Date: Jan 2006 Location: MX-KEY is the BEST NOKIA TOOL Posts: 245 Member: 220123 Status: Offline Thanks Meter: 21	have any salutation for android 5 solutions with me same problem

01-12-2015, 13:24	#4 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,847 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,412	Yes, look here: http://forum.gsmhosting.com/vbb/f799.../#post10779038.

01-27-2015, 15:37	#6 (permalink)
Octopus box Product Supporter Join Date: Oct 2009 Location: Romania, Bucharest Posts: 99,847 Member: 1146942 Status: Offline Sonork: 100.1587278 Thanks Meter: 27,412	Use the latest Software version (Software). Also, look here: http://forum.gsmhosting.com/vbb/f799.../#post10797132, http://forum.gsmhosting.com/vbb/f799.../#post10766821, http://forum.gsmhosting.com/vbb/f799.../#post10724651.