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Windows Phone Internals fails unlocking bootloader when accessing Mass Storage mode

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seaephpea

Member
Dec 17, 2008
17
0
Hi,

I finally tried to try installing desktop Windows on my old Windows Phone (Lumia 950).

I have followed the instructions for Windows Phone Internals for unlocking the bootloader (as well as is possible given that none of the driver download links seem to work anymore).

Windows Phone Internals always gets part way through the bootloader unlocking process, and then fails when it tried to get into Mass Storage mode. See the log extract below.

I tried this with both v2.8 and the GitHub latest, compiled from source. I also tried it from two different PCs.

I guess this must be due to some missing driver? Could someone point me to the driver I need to fix this?

Thanks in advance,

Tom

2021-07-04 14:47:47.270: Rebooting phone to Mass Storage mode...
2021-07-04 14:47:47.270: Preparing phone for Mass Storage Mode
2021-07-04 14:47:47.826: Rebooting phone
2021-07-04 14:47:47.851: Lumia disconnected
2021-07-04 14:47:55.964: Found device on interface: 9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc
2021-07-04 14:47:55.964: Device path: \\?\USB#VID_045E&PID_0A02#5&21b9dad6&0&9#{9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc}
2021-07-04 14:47:55.964: Connected device: Lumia
2021-07-04 14:47:55.964: Mode: Bootloader
2021-07-04 14:47:55.992: Bootmanager: 2.48
2021-07-04 14:47:55.992: Bootmanager protocol: 2.6
2021-07-04 14:47:55.992: Flash app: 2.75
2021-07-04 14:47:55.992: Flash protocol: 2.41
2021-07-04 14:47:55.992: SecureBoot: Disabled
2021-07-04 14:47:55.992: Flash app security: Disabled (FFU security: Disabled, RDC: Not found, Authenticated: False)
2021-07-04 14:47:55.992: JTAG: Enabled
2021-07-04 14:47:57.029: Rebooting phone
2021-07-04 14:47:57.029: Phone performs hard exit
2021-07-04 14:47:57.067: Lumia disconnected
2021-07-04 14:48:04.809: Found device on interface: 9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc
2021-07-04 14:48:04.809: Device path: \\?\USB#VID_045E&PID_0A02#5&21b9dad6&0&9#{9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc}
2021-07-04 14:48:04.809: Connected device: Lumia
2021-07-04 14:48:04.809: Mode: Bootloader
2021-07-04 14:48:04.810: Waiting for Mass Storage Mode (1)...
2021-07-04 14:48:10.815: Lumia disconnected
2021-07-04 14:48:59.471: Found device on interface: 9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc
2021-07-04 14:48:59.471: Device path: \\?\USB#VID_045E&PID_0A02#5&21b9dad6&0&9#{9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc}
2021-07-04 14:48:59.471: Connected device: Lumia
2021-07-04 14:48:59.471: Mode: Bootloader
2021-07-04 14:48:59.471: Waiting for Mass Storage Mode (2)...
2021-07-04 14:49:05.474: Lumia disconnected
2021-07-04 14:49:54.244: Found device on interface: 9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc
2021-07-04 14:49:54.244: Device path: \\?\USB#VID_045E&PID_0A02#5&21b9dad6&0&9#{9e3bd5f7-9690-4fcc-8810-3e2650cd6ecc}
2021-07-04 14:49:54.244: Connected device: Lumia
2021-07-04 14:49:54.244: Mode: Bootloader
2021-07-04 14:49:54.247: Error: Failed to switch to Mass Storage Mode
2021-07-04 14:49:54.247:
2021-07-04 14:49:54.248: Problem detected, rolling back...
 

seaephpea

Member
Dec 17, 2008
17
0
This is now fixed. I re-flashed the phone (again), and then it magically just worked. May have just been chance.

Thanks to Gustave Monce via Twitter for some helpful suggestions, which I did not need to try in the end. For the sake of others, his suggestions were:

* Avoid Thunderbolt capable ports.
* USB2 ports are more reliable.
* USB cable length can matter.
 

dAV84

Senior Member
Jan 1, 2008
226
22
Pouillé
hello
how much time you can run the desktop? and w11 can you install? i'm thinking buy a 950 XL to play with him. My elite X3 can't unlock boot