[Windows Phone 8 Q&A, Help & Troubleshooting] Lumia825.1:
GPT0.bin is renamed to msimage.mbn

GPT1.bin is converted to hex, then modified as per previous posts on this forum.

Error received is (pls check the end of the log):

"C:\Program Files\Microsoft Care Suite\Windows Phone Recovery Tool>thor2 -mode em

ergency -hexfile HEX.hex -mbnfile msimage.mbn -orig_gpt

THOR2 1.8.2.15

Built for Windows @ 13:33:08 Mar 11 2015

Thor2 is running on Windows of version 6.1

thor2 -mode emergency -hexfile HEX.hex -mbnfile msimage.mbn -orig_gpt

Process started Wed May 06 08:43:29 2015

Logging to file C:\Users\XXX\AppData\Local\Temp\thor2_win_20150506084329_Threa

dId-5624.log

Debugging enabled for emergency

Initiating emergency download

Using default emergency protocol

ALPHA EMERGENCY FLASH START

Emergency Programmer V1 version 2014.10.31.001

Hex download selected

Check if device in Dload

Connection to DLOAD mode succeeded

Get Dload parameters

Sending HEX flasher to the device

Sending GO command if HEX flasher successfully uploaded.

Emergency Programmer V1 version 2014.10.31.001

Mbn download selected

Waiting for connection to flash programmer

Connecting to flash programmer

Received valid HELLO_RSP

Safe version=true, transfer size=15360

Received valid SECURITY_RSP

Successfully connected to flash programmer

Connection to flash programmer succeeded

Uploading bootloader(s), UEFI, etc from MBN image to the eMMC. This will take up

to 20 seconds

Reading GPT from binary

-- GPT STARTs--

name: DPP

startLBA: 4096

endLBA: 20479

size: 0x0000000000800000 bytes

attributes: 0x0

name: MODEM_FSG

startLBA: 20480

endLBA: 26623

size: 0x0000000000300000 bytes

attributes: 0x0

name: SSD

startLBA: 28672

endLBA: 28703

size: 0x0000000000004000 bytes

attributes: 0x0

name: SBL1

startLBA: 32768

endLBA: 35767

size: 0x0000000000177000 bytes

attributes: 0x0

name: SBL2

startLBA: 36864

endLBA: 39863

size: 0x0000000000177000 bytes

attributes: 0x0

name: SBL3

startLBA: 40960

endLBA: 45055

size: 0x0000000000200000 bytes

attributes: 0x0

name: UEFI

startLBA: 45056

endLBA: 50055

size: 0x0000000000271000 bytes

attributes: 0x0

name: RPM

startLBA: 53248

endLBA: 54247

size: 0x000000000007d000 bytes

attributes: 0x0

name: TZ

startLBA: 57344

endLBA: 58343

size: 0x000000000007d000 bytes

attributes: 0x0

name: WINSECAPP

startLBA: 61440

endLBA: 62463

size: 0x0000000000080000 bytes

attributes: 0x0

name: BACKUP_SBL1

startLBA: 65536

endLBA: 68535

size: 0x0000000000177000 bytes

attributes: 0x0

name: BACKUP_SBL2

startLBA: 69632

endLBA: 72631

size: 0x0000000000177000 bytes

attributes: 0x0

name: BACKUP_SBL3

startLBA: 73728

endLBA: 77823

size: 0x0000000000200000 bytes

attributes: 0x0

name: BACKUP_UEFI

startLBA: 77824

endLBA: 82823

size: 0x0000000000271000 bytes

attributes: 0x0

name: BACKUP_RPM

startLBA: 86016

endLBA: 87015

size: 0x000000000007d000 bytes

attributes: 0x0

name: BACKUP_TZ

startLBA: 90112

endLBA: 91111

size: 0x000000000007d000 bytes

attributes: 0x0

name: BACKUP_WINSECAPP

startLBA: 94208

endLBA: 95231

size: 0x0000000000080000 bytes

attributes: 0x0

name: UEFI_BS_NV

startLBA: 98304

endLBA: 98815

size: 0x0000000000040000 bytes

attributes: 0x0

name: UEFI_NV

startLBA: 102400

endLBA: 102911

size: 0x0000000000040000 bytes

attributes: 0x0

name: PLAT

startLBA: 106496

endLBA: 122879

size: 0x0000000000800000 bytes

attributes: 0x0

name: EFIESP

startLBA: 131072

endLBA: 262143

size: 0x0000000004000000 bytes

attributes: 0x0

name: MODEM_FS1

startLBA: 262144

endLBA: 268287

size: 0x0000000000300000 bytes

attributes: 0x0

name: MODEM_FS2

startLBA: 270336

endLBA: 276479

size: 0x0000000000300000 bytes

attributes: 0x0

name: UEFI_RT_NV

startLBA: 278528

endLBA: 279039

size: 0x0000000000040000 bytes

attributes: 0x0

name: UEFI_RT_NV_RPMB

startLBA: 282624

endLBA: 282879

size: 0x0000000000020000 bytes

attributes: 0x0

-- GPT ENDs --

Sending OPEN_MULTI_REQ

Message send failed with error code -1

Failed to get response to OPEN_MULTI_REQ

ALPHA EMERGENCY FLASH END

Emergency messaging closed successfully

Operation took about 12.00 seconds.

THOR2_EMERGENCYFLASHV1_ERROR_MSG_SEND_RECEIVE_FAILED

THOR2 1.8.2.15 exited with error code 85021 (0x14C1D)"

It's interesting no one is willing to link their mbn&hex combo used to fix their RM-893 (Lumia 925 on AT&T, not T-Mobile). One needs both files, not only the .hex file. My guess ... nothing worked for the AT&T version of this phone.