Lenovo P1a42 6.0.1 cannot flash firmware and twrp recovery

NMLC

I want to root Lenovo P1a42 with 6.0.1 . Bootloader is unlocked , but cannot flash a custom recovery or firmware with root . Every time when i tried i received this error enter image description here

first - firmware , second - twrp

Please help me to resolve the issue .
Here is device info log

platform: msm8916, cpu abi: arm64-v8a
manufacturer: LENOVO
hardware: qcom
board: msm8916, name: passion_row
brand: Lenovo, model: Lenovo P1a42
build id: MMB29M, version: 6.0.1 Marshmallow (P1a42_S288_160721_ROW)
build date: Thu Jul 21 16:36:27 CST 2016, security patch: 2016-06-01
build description: passion_row-user 6.0.1 MMB29M P1a42_S288_160721_ROW release-keys

soc: Qualcomm Technologies, Inc MSM8939
memory: 3 GB
crypto state: unencrypted
boot serial no: c004d859
serial no: c004d859
baseband version: MPSS.DPM.2.0.2.c1-00131
ril version: Qualcomm RIL 1.0
sim state: ABSENT,ABSENT
android id: d6e775fb4e6e4faa
client id: android-lenovo
bt addr: 54:27:58:74:23:01
wifi mac:
country: CN
locale: en-GB
battery level: 14%
superuser: no

Thank you in advance for your help

cucipiring

if bootloader unlocked, you can write recovery by fastboot method
fastboot flash recovery filename.img

NMLC

cucipiring
Thank you , i tried with fastboot , but the result is Failed (invalid signature and data). Maybe the problem is with custom recovery.

cucipiring

NMLC how about boot to twrp.img (temporary boot into twrp)
fastboot boot recoveryfilename.img

NMLC

I've tried and this method but the result is
"c:\Downloads\P1a42_S288_160721_ROW_RAW_QFIL>fastbo ot flash recovery recovery_twrp.img
target reported max download size of 268435456 bytes
sending 'recovery' (30606 K😎...
OKAY [ 1.022s]
writing 'recovery'...
FAILED (remote: invalid signature and data)
finished. total time: 1.265s"

Thank you for your help

cucipiring

NMLC use boot command, not flash command

Arjun5259

Twrp file problem, try to another Twrp with same Android version

noaccess

did you succeed? i was thinking of doing it but saw your post. did you brick your phone?