Unable to flash TWRP - Honor 5X Questions & Answers

Here is what I did.
Phone was running with Android 6.0+EMUI4.0 beta version. I unlocked the bootloader by acquiring unlock code from Huawei website.
After unlocking bootloader, when I try to flash TWRP, it says
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash recovery kiwi_twrp_5-14_recovery.img
target reported max download size of 266338304 bytes
sending 'recovery' (45116 KB)...
FAILED (data transfer failure (Unknown error))
finished. total time: 5.008s
I tried above procedure several times but no luck. So I rebooted my devices, and then booted it again in bootloader mode and then fired command to flash recovery, but this time new error came:
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash recovery kiwi_twrp_5-14_recovery.img
target reported max download size of 266338304 bytes
sending 'recovery' (45116 KB)...
FAILED (data transfer failure (Unknown error))
finished. total time: 5.008s
In both of the above cases fastboot devices working good and showing my device in the list. Please help me here :crying:

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[SOLVED]
WIth USB 3.0 ports on my computer, fastboot didn't seem to flash the recovery. @elry567 suggested to use USB 2.0 port and fastboot worked like a charm with that

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pank.dhnd said:
[SOLVED]
WIth USB 3.0 ports on my computer, fastboot didn't seem to flash the recovery. @elry567 suggested to use USB 2.0 port and fastboot worked like a charm with that
Click to expand...
Click to collapse
but still on windows 10 unable to run Shift + Command Prompt on the adb folder aswell it reboots on adb but still not able to open the .img file

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kartrikpal said:
but still on windows 10 unable to run Shift + Command Prompt on the adb folder aswell it reboots on adb but still not able to open the .img file
Click to expand...
Click to collapse
are you serious ? you can't right click and choose open command prompt here ?
and what .img are you trying to open ? are you trying to flash twrp ?
Code:
C:\fastboot>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
C:\fastboot>adb devices
List of devices attached
GFMDU1********** device
C:\fastboot>adb reboot bootloader
C:\fastboot>fastboot boot C:\fastboot\kiwi_recovery.img
downloading 'boot.img'...
OKAY [ 1.433s]
booting...
OKAY [ 0.020s]
finished. total time: 1.455s
C:\fastboot>fastboot reboot
< waiting for device >
rebooting...
finished. total time: 0.002s
C:\fastboot>

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clsA said:
are you serious ? you can't right click and choose open command prompt here ?
and what .img are you trying to open ? are you trying to flash twrp ?
Code:
C:\fastboot>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
C:\fastboot>adb devices
List of devices attached
GFMDU1********** device
C:\fastboot>adb reboot bootloader
C:\fastboot>fastboot boot C:\fastboot\kiwi_recovery.img
downloading 'boot.img'...
OKAY [ 1.433s]
booting...
OKAY [ 0.020s]
finished. total time: 1.455s
C:\fastboot>fastboot reboot
< waiting for device >
rebooting...
finished. total time: 0.002s
C:\fastboot>
Click to expand...
Click to collapse
Yes, i'm unable to do that, instead just unlocked my Phone using Windows 10 and Flashed Twrp.img using Ubuntu - Using Linux its that easy but on Windows 10 it force closes ! I could not find solution .
@clsA
Anyways i'm done with Flashing but after first boot there was seemless WiFi speed seen as i have 2MbPs connection but after few hours of restoring my apps using PS it started to load slow - is there any fixes ?

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pank.dhnd said:
[SOLVED]
WIth USB 3.0 ports on my computer, fastboot didn't seem to flash the recovery. @elry567 suggested to use USB 2.0 port and fastboot worked like a charm with that
Click to expand...
Click to collapse
Thank you very much...i should have come here before spending my 1 hour on trying everything else!!:good::good:

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pank.dhnd said:
[SOLVED]
WIth USB 3.0 ports on my computer, fastboot didn't seem to flash the recovery. @elry567 suggested to use USB 2.0 port and fastboot worked like a charm with that
Click to expand...
Click to collapse
That is great, I'll keep it in mind always when I face issues