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Lenovo k8 plus xt1902-2 bootloader wont Unlock/Lock

aftab malvi
Enthusiastic Member
Posts: 11
Threads: 1
Joined: Nov 2017
Reputation: 0
#1

17-11-2017, 01:39 PM


I'm using Lenovo k8 plus xt1902-2. I Successfully unlocked my bootloader using command ''fastboot oem unlock'' and in fastboot mode it says Device Status: unlocked (see attachment) but when i try to flash TWRP i'm getting error 

platform-tools>fastboot flash recovery r
ecovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (14280 KB)...
OKAY [  0.428s]
writing 'recovery'...
FAILED (remote: not allowed in locked state)
finished. total time: 0.445s

Even worse  when i use command ''fastboot getvar all'' to check my bootloader status it says  

(bootloader)    partition-type:preloader: raw data

(bootloader)    serialno: 0123456789ABCDEF

(bootloader)    off-mode-charge: 1

(bootloader)    warranty: yes

(bootloader)    unlocked: no

(bootloader)    efuse: yes

(bootloader)    secure: yes

(bootloader)    kernel: lk

(bootloader)    product: MARINO

(bootloader)    hwid: 0

(bootloader)    version-preloader:

(bootloader)    version: 0.5

all: Done!!
finished. total time: 0.896s

I even tried to lock the bootloader just so that i can start the unlock procedure again, but it just doesn't lock. I tried to flash stock Rom thru Sp flash tool using each and every mode (download load only, firmware upgrade, format all + download) the boot loader just doesn't lock again. 

Please help me with this as i really want to install TWRP and root my device . Thanks!


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X3non
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Posts: 19,758
Threads: 562
Joined: Jul 2014
Reputation: 326
#2

17-11-2017, 03:13 PM
(17-11-2017, 01:39 PM)aftab malvi Wrote:  I'm using Lenovo k8 plus xt1902-2. I Successfully unlocked my bootloader using command ''fastboot oem unlock'' and in fastboot mode it says Device Status: unlocked (see attachment) but when i try to flash TWRP i'm getting error 
...

Please help me with this as i really want to install TWRP and root my device . Thanks!

since you already Have stock rom, flash TWRP recovery + the scatter file from the stock rom using SP flash tool

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aftab malvi
Enthusiastic Member
Posts: 11
Threads: 1
Joined: Nov 2017
Reputation: 0
#3

17-11-2017, 08:19 PM
(17-11-2017, 03:13 PM)X3non Wrote:  
(17-11-2017, 01:39 PM)aftab malvi Wrote:  I'm using Lenovo k8 plus xt1902-2. I Successfully unlocked my bootloader using command ''fastboot oem unlock'' and in fastboot mode it says Device Status: unlocked (see attachment) but when i try to flash TWRP i'm getting error 
...

Please help me with this as i really want to install TWRP and root my device . Thanks!

since you already Have stock rom, flash TWRP recovery + the scatter file from the stock rom using SP flash tool

Actually I've tried that also with no luck, it gives me error STATUS_INSUFFICIENT_BUFFER (0xC0010007)
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X3non
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Posts: 19,758
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#4

18-11-2017, 08:06 PM
(17-11-2017, 08:19 PM)aftab malvi Wrote:  Actually I've tried that also with no luck, it gives me error STATUS_INSUFFICIENT_BUFFER (0xC0010007)

are you able to flash stock rom successfully without any errors?

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aftab malvi
Enthusiastic Member
Posts: 11
Threads: 1
Joined: Nov 2017
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#5

19-11-2017, 09:21 AM
(18-11-2017, 08:06 PM)X3non Wrote:  
(17-11-2017, 08:19 PM)aftab malvi Wrote:  Actually I've tried that also with no luck, it gives me error STATUS_INSUFFICIENT_BUFFER (0xC0010007)

are you able to flash stock rom successfully without any errors?

Yes. This is a strange issue I've ever came across. I've unlocked and rooted a no. of devices in the past.

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hovatek
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Posts: 46,916
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#6

20-11-2017, 10:15 AM
(17-11-2017, 08:19 PM)aftab malvi Wrote:  Actually I've tried that also with no luck, it gives me error STATUS_INSUFFICIENT_BUFFER (0xC0010007)

Can I see a screenshot of this error message

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leibneitz
Newbie
Posts: 1
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Joined: Nov 2017
Reputation: 0
#7

22-11-2017, 06:29 AM
(17-11-2017, 01:39 PM)aftab malvi Wrote:  I'm using Lenovo k8 plus xt1902-2. I Successfully unlocked my bootloader using command ''fastboot oem unlock'' and in fastboot mode it says Device Status: unlocked (see attachment) but when i try to flash TWRP i'm getting error 

platform-tools>fastboot flash recovery r
ecovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (14280 KB)...
OKAY [  0.428s]
writing 'recovery'...
FAILED (remote: not allowed in locked state)
finished. total time: 0.445s

Even worse  when i use command ''fastboot getvar all'' to check my bootloader status it says  

(bootloader)    partition-type:preloader: raw data

(bootloader)    serialno: 0123456789ABCDEF

(bootloader)    off-mode-charge: 1

(bootloader)    warranty: yes

(bootloader)    unlocked: no

(bootloader)    efuse: yes

(bootloader)    secure: yes

(bootloader)    kernel: lk

(bootloader)    product: MARINO

(bootloader)    hwid: 0

(bootloader)    version-preloader:

(bootloader)    version: 0.5

all: Done!!
finished. total time: 0.896s

I even tried to lock the bootloader just so that i can start the unlock procedure again, but it just doesn't lock. I tried to flash stock Rom thru Sp flash tool using each and every mode (download load only, firmware upgrade, format all + download) the boot loader just doesn't lock again. 

Please help me with this as i really want to install TWRP and root my device . Thanks!

After "fastboot oem unlock" you should provide command "fastboot flashing unlock" to remove flashing restriction.
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aftab malvi
Enthusiastic Member
Posts: 11
Threads: 1
Joined: Nov 2017
Reputation: 0
#8

22-11-2017, 10:59 AM
(20-11-2017, 10:15 AM)hovatek Wrote:  
(17-11-2017, 08:19 PM)aftab malvi Wrote:  Actually I've tried that also with no luck, it gives me error STATUS_INSUFFICIENT_BUFFER (0xC0010007)

Can I see a screenshot of this error message


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aftab malvi
Enthusiastic Member
Posts: 11
Threads: 1
Joined: Nov 2017
Reputation: 0
#9

22-11-2017, 11:15 AM
(22-11-2017, 06:29 AM)leibneitz Wrote:  
(17-11-2017, 01:39 PM)aftab malvi Wrote:  I'm using Lenovo k8 plus xt1902-2. I Successfully unlocked my bootloader using command ''fastboot oem unlock'' and in fastboot mode it says Device Status: unlocked (see attachment) but when i try to flash TWRP i'm getting error 

platform-tools>fastboot flash recovery r
ecovery.img
target reported max download size of 536870912 bytes
sending 'recovery' (14280 KB)...
OKAY [  0.428s]
writing 'recovery'...
FAILED (remote: not allowed in locked state)
finished. total time: 0.445s

Even worse  when i use command ''fastboot getvar all'' to check my bootloader status it says  

(bootloader)    partition-type:preloader: raw data

(bootloader)    serialno: 0123456789ABCDEF

(bootloader)    off-mode-charge: 1

(bootloader)    warranty: yes

(bootloader)    unlocked: no

(bootloader)    efuse: yes

(bootloader)    secure: yes

(bootloader)    kernel: lk

(bootloader)    product: MARINO

(bootloader)    hwid: 0

(bootloader)    version-preloader:

(bootloader)    version: 0.5

all: Done!!
finished. total time: 0.896s

I even tried to lock the bootloader just so that i can start the unlock procedure again, but it just doesn't lock. I tried to flash stock Rom thru Sp flash tool using each and every mode (download load only, firmware upgrade, format all + download) the boot loader just doesn't lock again. 

Please help me with this as i really want to install TWRP and root my device . Thanks!

After "fastboot oem unlock" you should provide command "fastboot flashing unlock" to remove flashing restriction.

Tried this just now, still no luck. :Sad
Mtk devices suck big time really! Never faced any issues with Qualcomm  powered devices, unlocking those devices is a breeze. I've had some bad experiences with Mediatek devices in the past also.
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hovatek
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#10

22-11-2017, 12:01 PM
(22-11-2017, 11:15 AM)aftab malvi Wrote:  Tried this just now, still no luck. :Sad
Mtk devices suck big time really! Never faced any issues with Qualcomm  powered devices, unlocking those devices is a breeze. I've had some bad experiences with Mediatek devices in the past also.

Try flashing the stock recovery alone (not custom) and let me know how that goes

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