[Windows Phone 8 Q&A, Help & Troubleshooting] kavimukil:
DEV_RKH_Mismatch_Error

Hi,

I get the following error and i cant move to next step.My lumia got bricked because of installing w10 First TP by modifying registry settings to pretend my phone as Nokia Lumia 630..Here is the error :

Initiating FFU flash operation

WinUSB in use.

isDeviceInNcsdMode

isDeviceInNcsdMode is false

Device mode 6 Uefi mode

[THOR2_flash_state] Pre-programming operations

Disable timeouts

Get flashing parameters

Lumia Flash detected

Protocol version 1.15 Implementation version 1.28

Size of one transfer is 2363392

Size of buffer is 2359296

Number of eMMC sectors: 15155200

Platform ID of device: Nokia.MSM8227.P6137.1.2

Async protocol version: 01

Security info:

Platform secure boot enabled

Secure FFU enabled

JTAG eFuse blown

RDC not found

Authentication not done

UEFI secure boot enabled

SHK enabled

Device supports FFU protocols: 0019

[THOR2_flash_state] Device programming started

Using secure flash method

CoreProgrammer version 2015.04.09.001.

Start programming signed ffu file C:\ka\RM914_3058.50000.1425.0001_RETAIL_im_india_269_01_444377_prd_signed.ffu

FfuReader version is 2015032401

Send FlashApp write parameter: 0x4d544f00

Perform handshake with UEFI...

Flash app: Protocol Version 1.15 Implementation Version 1.28

DevicePlatformInfo: Nokia.MSM8227.P6137.1.2

Unknown sub block detected. Skip...

Unknown sub block detected. Skip...

Supported protocol versions bitmap is 19

Secure FFU sync version 1 supported.

Secure FFU async version 1 supported.

Secure FFU async version 3 supported.

Get CID of the device...

Get EMMC size of the device...

Emmc size in sectors: 15155200

CID: Hynix, Size 7400 MB

Start charging...

Requested write param 0x43485247 is not supported by this flash app version.

Start charging... DONE. Status = 0

Unable to send ECHO REQ or ECHO REQ not supported

Get security Status...

Security Status:

Platform secure boot is enabled.

Secure eFUSE is enabled.

JTAG is disabled.

RDC is missing from the device.

Authentication is not done.

UEFI secure boot is enabled.

Secondary HW key exists.

Get RKH of the device...

RKH of the device is 25C0C84AECBD154F817825B24D4EB4BCF5E606E66228BD6A77997ACC54710C5E

Get ISSW Version...

Get ISSW Version, SKIPPED!

Get system memory size...

Size of system mem: 1048576 KB

Read antitheft status...

Requested read param 0x41545250 is not supported by this flash app version.

Send backup to RAM req...

Clearing the backup GPT...SKIPPED!

Successfully parsed FFU file. Header size: 0x000e0000, Payload size: 0x0000000060020000, Chunk size: 0x00020000, Header offset: 0x00000000, Payload offset: 0x00000000000e0000

DEV_RKH_MISMATCH_ERROR

programming operation failed!

0x00030007: The boot loaders in FFU file are not signed for this device. RKH of device: 25C0C84AECBD154F817825B24D4EB4BCF5E606E66228BD6A77997ACC54710C5E. RKH of FFU image: F771E62AF89994064F77CD3BC16829503BDF9A3D506D3FACECAEF3F808C868FD

Operation took about 1.00 second.

DEV_RKH_MISMATCH_ERROR

THOR2 1.8.2.17 exited with error code 196615 (0x30007)

My phone vibates and detects by WPRT too...But it shows no software package is available to start flashing my Lumia 520.

Anyhelp help would be appreciated to fix this