[Windows Phone 8 Q&A, Help & Troubleshooting] Hende:
Lumia 925 (RM-892)

Hi

I hava a Lumia 925 (RM-892) and I have already read the product code from SIM holder and it is 059T3M6.

I created a virtual Windows 7 32-bit, because the driver is not correct on Windows 10, and here I can add the driver manually.

If I connect it to PC or charger the middle Windows button blink once and if I do a hard reset on a connected phone I hear a connected driver sound, but it for only 3-4 seconds. But then nothing happens.

I downloaded the ROM with Navifirm. I created the BIN files and I tried every HEX file but no success and it is still showing error code 85021.

So I did this:

1. I copied th ROM to C:\ProgramData\Microsoft\Packages\Products\RM-892

2. I opened Windows Device Recovery Tool 3.0.1

3. I clicked on "My Phone wasnot detected"

4. I clicked on "Lumia"

5. Then it showed to me my ROM and I clicked on it

6. Then it downloaded the HEX and MNB files (mnb is much larger 3.55mb and not only 17kb)

7. Finally it can not flash my phone. (How can I flash with this? "simple method")

But now I have the correct files so I'm using thor2, but it is still give me error code 85021.

I have already done this many times and connected off the battery, but I still have problem.

I attached the output.

What can I do now? Please help me, because I use a low-end android tablet for calling and it is horrible.

Thanks for answers!

How did you get the RED screen? Can you upload your HEX and MBN files?

C:\Program Files\Microsoft Care Suite\Windows Device Recovery Tool>thor2 -mode e
mergency -hexfile HEX.hex -mbnfile msimage.mbn -orig_gpt
THOR2 1.8.2.18
Built for Windows @ 13:36:46 Jun 16 2015
Thor2 is running on Windows of version 6.1
thor2 -mode emergency -hexfile HEX0.hex -mbnfile msimage0.mbn -orig_gpt
Process started Sun Oct 25 11:09:33 2015
Logging to file C:\Users\Hende\AppData\Local\Temp\thor2_win_20151025110933_Threa
dId-1820.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: SBL1
startLBA: 34
endLBA: 243
size: 0x000000000001a400 bytes
attributes: 0x0

name: SBL2
startLBA: 244
endLBA: 507
size: 0x0000000000021000 bytes
attributes: 0x0

name: SBL3
startLBA: 508
endLBA: 1193
size: 0x0000000000055c00 bytes
attributes: 0x0

name: UEFI
startLBA: 1194
endLBA: 3273
size: 0x0000000000104000 bytes
attributes: 0x0

name: RPM
startLBA: 3274
endLBA: 3559
size: 0x0000000000023c00 bytes
attributes: 0x0

name: TZ
startLBA: 3560
endLBA: 3985
size: 0x0000000000035400 bytes
attributes: 0x0

name: WinSecApp
startLBA: 3986
endLBA: 4609
size: 0x000000000004e000 bytes
attributes: 0x0

name: UEFI_BS_NV
startLBA: 4610
endLBA: 4865
size: 0x0000000000020000 bytes
attributes: 0x0

name: UEFI_NV
startLBA: 4866
endLBA: 4881
size: 0x0000000000002000 bytes
attributes: 0x0

name: UEFI_RT_NV
startLBA: 4882
endLBA: 5137
size: 0x0000000000020000 bytes
attributes: 0x0

name: UEFI_RT_NV_RPMB
startLBA: 5138
endLBA: 5153
size: 0x0000000000002000 bytes
attributes: 0x0

name: SSD
startLBA: 5154
endLBA: 5169
size: 0x0000000000002000 bytes
attributes: 0x0

name: PLAT
startLBA: 5170
endLBA: 7243
size: 0x0000000000103400 bytes
attributes: 0x0

-- GPT ENDs --

Sending OPEN_MULTI_REQ
Message send failed with error code 8
Failed to get response to OPEN_MULTI_REQ
ALPHA EMERGENCY FLASH END
Emergency messaging closed successfully
Operation took about 24.00 seconds.

THOR2_EMERGENCYFLASHV1_ERROR_MSG_SEND_RECEIVE_FAILED

THOR2 1.8.2.18 exited with error code 85021 (0x14C1D)

C:\Program Files\Microsoft Care Suite\Windows Device Recovery Tool>