yashsingh1/xdaforums huggingface dataset:
[Nokia Lumia 800] jessenic:
Try Disk Management in Computer Management in Administrative Tools in Control Panel. It should show up there.
[Nokia Lumia 800] ombadboy:
Just an wild idea.. What if we get an unlocked bootloader Lumia, and try install the 'locked' bootloader (via NCS) and monitor exactly what it does.. Then maybe reverse engineer the steps and hopefully manage to 'unlock' NOKIA DLOAD?
[Nokia Lumia 800] Tan-Killer:
Disk Mode

what is mode name ?

Normal Mode , Local Mode , Test Mode , JSON Mode ?
[Nokia Lumia 800] djtonka:
second attempt and L800 is still rebooting itself without USB connections but allowed me to install.
[Nokia Lumia 800] Bph&co:
FTM Mode, but VID/PID is not exactly the same as the guys with Qcom loader

get. There are number of bulk pipes showing up, with 512 buffer size, but might

not be MSD device at all. Also no tool supports those modes, so no way to get

idea of protocols used.

BR
[Nokia Lumia 800] frenk_91:
it's osbl mode
[Nokia Lumia 800] Tan-Killer:
now i used NSS Pro how i boot Lumia to Disk mode
[Nokia Lumia 800] suzughia:
you can't if you don't have a qualcomm bootloader, please for non technical posts relay here, the thread has been updated with common questions and answers, keep this thread clean!
[Nokia Lumia 800] Tan-Killer:
sorry
[Nokia Lumia 800] frenk_91:
With NSS is possible to boot the Lumia in all mode, but if you don't have a Qualcomm bootloader your phone boot into nokia DLOAD
[Nokia Lumia 800] jessenic:
I got a internal nokia document in my hands, DLOAD mode is Download Mode and it is a "flash mode to flash phone with QPST or vdsemmctool" so go find those tools ;)

Edit. It seems though that this only applies to the Qualcomm bootloader...

And yes, you can change IMEI and sim unlocking through the Qualcomm bootloader
[Nokia Lumia 800] suzughia:
what's the point of booting a Lumia with DLOAD in all the possible mode if the only thing that you really care is the missing one: the Qualcomm bootloader? please stop spamming.
[Nokia Lumia 800] brummiesteven:
I used that but all I get is this:

Am I being a massive noob here? :confused:
[Nokia Lumia 800] suzughia:
Which is you hw rev and firmware version? if your hw rev is 2.4 and your firmware 11501 or higher you have the nokia bootloader; if you have hw rev 2.3 but firmware 11501 or higher you have te nokia bootloader too.

read this thread: Interop-Unlock Lumia 800 plus bootloader and NAND access [Q&A]
[Nokia Lumia 800] sHaHiN786:
Just connect it on Windows instead, open up device manager, check other devices when you plug the USB in. You will have your answer there noobly. ;)
[Nokia Lumia 800] brummiesteven:
This makes sense as I have a hardware revision of 2.3 and version 12070 of firmware. Thanks for the help, guess I have the nokia bootloader.
[Nokia Lumia 800] Bph&co:
Hi,

If you have read the whole thread, you would know. To make it simple, here.

VID_045E&PID_04EC: WindowsPhone7ProductOperatingMode.Normal
VID_0421&PID_05EF: WindowsPhone7ProductOperatingMode.Ncsd
[B]VID_05C6&PID_QCOM: WindowsPhone7ProductOperatingMode.FTM[/B]
VID_0421&PID_05EE: WindowsPhone7ProductOperatingMode.OSBL
VID_0421&PID_5F4 : WindowsPhone7ProductOperatingMode.WinDIAG
VID_0421&PID_05ED: WindowsPhone7ProductOperatingMode.CareFTM

The only non Nokia usb device in production phones (not Qcom bootloader)

BR

---------- Post added at 11:24 PM ---------- Previous post was at 11:20 PM ----------

It's just shows as Zune device instead of Nokia. Probably a glitch, full downgrade

also prevents restart to flash mode (OSBL) mode.

BR
[Nokia Lumia 800] suzughia:
So this could be usefull? As for what have you posted it's a series of terms, care to explain?
[Nokia Lumia 800] ChrisKringel:
I extracted my 15GB dump with OSBuilder and took a look at said key. I don't want to publish ist value here, but every block has the same letter combination. It seems to me that this is a generic device ID. I had also a Lumia 900 AT&T ROM Dump from NaviFirm on my HardDrive. The extracted default.hv of this "untouched" ROM has the same generic activation code. I guess we are (or at least I am) missing something…

I guess you can call These the Operation Modes of the Bootloader. For instance you can boot up (not sure if ist the correct term, though) in Factory Test Mode.
[Nokia Lumia 800] Bph&co:
I am not sure, but it seems is some debug application or loader or ROM from

Qcom, until somebody post usbview log from the MSD device of the unlocked

loader. It might be just the standard Qcom debug inteface.

BR
[Nokia Lumia 800] voluptuary:
Yep that's normal, NOPVK-NOPVK-NOPVK-NOPVK-NOPVK is changed to something else on first boot after flash. Thats why it is important we find out how to trigger this manually after writing to NAND.
[Nokia Lumia 800] ChrisKringel:
I guess I extracted the wrong data, the Default default.hv that is used when resetting the phone. I hope the next Version of OSBuilder allows to extract the curret registry. So this method is only triggered after flashing and not after every hard-reset? So I guess it is called by the Flash routine? I'll take a look at the other partitions tomorrow. As soon as we are able to extract the key everbody can cook his/her own, devicespecific ROM.
[Nokia Lumia 800] ceesheim:
here is a test rom ( tango 8773) this rom is full unlocked.

I don't have a nokia so I can't test it , look at the first post for instructions on how to flash

this is for advansed users only , and use at own risk.

I hope it boots :)

https://hotfile.com/dl/152761802/27b2472/os-new.rar.html
[Nokia Lumia 800] xsacha:
Ok, it turns out that those raw flash files I found (rawprogram.xml, etc..) are to be used by Qualcomm Product Support Tools (for those with unlocked bootloader).

They allow you to flash unsigned files to the Qualcomm MMC (with QPST or vdsemmctool).

So this won't help locked bootloaders at all (they require .esco's with a .cert).
[Nokia Lumia 800] lilstevie:
that cyan australian firmware with all the raw files contains the signatures for each in <snip>_signature.bin

*IF* someone could find the digital signature somewhere for the qualcomm osbl we could possibly downgrade to it, I say this because the digital signature is in an xml document and is just the signature. while the cert in the esco is a little more complex (haven't found an exact structure of the cert yet)
[Nokia Lumia 800] xsacha:
Here you go guys.

Confidential docs from Nokia about flashing Lumia (Windows Phone 7).

http://imgur.com/a/QOrbG#0 [49 pages]

Have fun.
[Nokia Lumia 800] rescbr:
Not a glitch, mine gives this Zune mode too. I guess that's why NCS first flashes its own Nokia.First.dll FFU using UpdateWP before probing the device.

Some definitions from some fine DLLs:

namespace Microsoft.WindowsMobile.DeviceUpdate
{
internal enum FirmwareUpdateType
{
Undefined = -1,
Games = 0,
CAB = 1,
CABRomShadow = 2,
IU = 3, //Image Update
FFU = 4,
}

public enum OSType //Possible reboot modes from Zune
{
MAINOS = 1,
SLDR = 2, //Secure loader (?)
COLDBOOT = 3,
}
}

Haven't tested this yet, Zune on Windows 2008 R2 is a *****. Half of my Zune DLLs are leftovers from version 4.7 which weren't cleaned up on the update to 4.8. I guess that it is time to abandon the 2008R2 ship and go to 7.

If someone is looking on Zune, I suggest looking on the Windows Phone 7 Connector for Mac. Objective-C is very verbose ;)
[Nokia Lumia 800] :
Interesting read. Thanks!

Where did you get it?
[Nokia Lumia 800] sHaHiN786:
I don't think where he got it from should matter right, unless you are a Nokia rep? ;)
[Nokia Lumia 800] Dust2Dust:
Anyone post a mirror on this doc? Site is down for maintenance.
[Nokia Lumia 800] lilstevie:
As interesting as that document is, and a good read, most of it only applies with the qualcomm bootloader and/or an eng build of WP7
[Nokia Lumia 800] walie-duski:
please give us step by step how to flashing lumia 800
[Nokia Lumia 800] Dust2Dust:
Thanks xsacha
[Nokia Lumia 800] ceesheim:
http://xdaforums.com/showpost.php?p=24861617&postcount=364

did someone already try this ?

I want to know if it boots

and if it boots you have a full unlocked tango rom on the phone :)
[Nokia Lumia 800] EmaTheLegend:
This information are only for Qualcomm Bootloader... It's interesting if you can find the Nokia DLOAD instruction... Thx anyway :)
[Nokia Lumia 800] ceesheim:
http://conflipper.com/Software/QPST_2.7_366.rar

good old xda friend :)
[Nokia Lumia 800] Heathcliff74:
Thanks xsacha!

Could you be so kind to zip all png's and post the zip here? Tnx!

Heathcliff74
[Nokia Lumia 800] suzughia:
Here they are Nokia.WIndows.Phone.Test.Introduction

EDIT:

I've reupped the pics numbered and I've deleted a couple of clones.
[Nokia Lumia 800] Heathcliff74:
@biktor_gj

Thanks man!

I want to look into this. I'd prefer a portable linux distro, but I'm a Linux n00b, so I don't know which distro's would support this. So, even better would be Win7 drivers for this device.

Can you please give me some details about the usb/fs drivers you use (how is the usb-device and the filesystem recognized? ext4?)

I know you're already working on it with OS Builder. Maybe it's possible to insert an provxml in one of the wmparts and then hardreset and let coldinit.exe do the Interop Unlock. But it would be best to get access to exfat. Hopefully there's a way to accomplish that.

Ciao,

Heathcliff74
[Nokia Lumia 800] surya467:
12070 lumia 800 gives a USB input in device manager but doesnt show anythign anywhere in disk manager.

so..i dunno wat to do..if i downgrade i feel sorry for the apps i got :p
[Nokia Lumia 800] cdbase:
i have installed ubuntu 11.10 and am pressing vol up down with power button and ...nothing happens man nothing appears

firmware 7720.11414

how long do you hold those keys ? do you wait for vibra ?
[Nokia Lumia 800] Heathcliff74:
I'm pretty sure biktor_gj has some specific drivers installed that allow him to do that. If I hold vol-up and vol-down while connected to windows, I see an extra device: USB\VID_0421&PID_05EE. Vendor ID 0421 is NOKIA. Product ID 05EE is unknown (to me). You need a driver on Linux or Windows to be able to do the connection. If you don't have a driver that connects to this device, the phone will not do anything. If you release the buttons, the phone will continue to boot.
[Nokia Lumia 800] Heathcliff74:
Thanks for info.

Unfortunately I can't reproduce the behavior. I'm on Firmware 12070 and diagnostics 1.7, Windows 7.

I've tried both zune and serial mode.

I tried some Nokia driver packages.

If I restart the phone and hold the buttons until the vibrate, I only get 1 extra NOKIA device; an input device.

At no point I get a QUALCOMM or Mass Storage Device, so at this point installing Linux will probably not help me any further :(

Heathcliff74
[Nokia Lumia 800] ChrisKringel:
Great Thing you have found there ;) I don't have a Linux PC around right now and really not much time to look into These files. But I justr wanted to give Feedback about entering this Qualcom-Mode: On my (unbranded) Lumia 800 with 12070 everything works fine. I received every update through Zune but this shouldn't matter. So you don't need to downgrade your phone. I just hope that Nokia will not fix this with the next update.
[Nokia Lumia 800] Heathcliff74:
Ok. I really don't understand why I can't reproduce this then :(

Edit: If I press and hold 3 buttons (vol-up, vol-down, power) the phone only gives a short vibration and screen stays black. Nothing will happen until I release the buttons. I get a long vibrate and then it will start with the NOKIA logo and boot to Windows. I don't get any message about a QUALCOMM or disk mode or anything.

Edit 2: My "Device OEM Name" is: "RM-801 EU NDT EURO1" and my "Mobile Operator" is: "000-33". This probably means I got some type of developer phone. Diag version 1.7, Firmware rev: 12070, OS: 7.10.8107. All revisions are the same as biktor_gj.
[Nokia Lumia 800] biktor_gj:
You wont see anything on screen since the display will stay black all the time

Release the buttons once you feel that short vibration, and plug the usb. If you keep holding power for more than 5 seconds you will reboot the phone...
[Nokia Lumia 800] ombadboy:
Works fine here with 12070.. Windows 8.. I get a USB thing was detected, wanna format bla bla..

Heath, turn off your lumia, plug it in while its powered off, press vol up and down, THEN press button (keep pressing them) until windows shows it detected the device..

let me know if that helped..
[Nokia Lumia 800] Heathcliff74:
:( Both not working for me :(

I will try another computer tomorrow. But I doubt that will make a difference.

Also when I powered off and connect it to pc, the phone immediately powers on, so I'm not sure why I would need to press and hold the power button. I did it with and without power button; no difference.

Heathcliff74
[Nokia Lumia 800] ombadboy:
Gonna try alternative ways and see if any of those work for you! Will edit with my findings

Try this: power off, hold vol up + down, keep pressing, and then keep pressing power.. After vibration, let go of power, plug in usb, and it should be detected in windows
[Nokia Lumia 800] Heathcliff74:
Nope. Doesn't work. If I do that, nothing happens until I release all of the buttons. I get a long vibration and then the phone boots to windows. I think I tried all possible combinations already.

Thanks for helping,

Heathcliff74
[Nokia Lumia 800] beidl:
How did you dump your 15GB partition? Just dd'ing the device to a file?
[Nokia Lumia 800] xsacha:
I tried everything you guys have suggested.

I held two volume buttons and power. Released, noticed vibration. Plugged in to computer. Both Windows and Linux tell me it's "Nokia DLOAD". Shortly after, it will boot WP7.

Same if I plug in to computer first and then press volume and then power.

Is there a chance you guys got given some special developer device or maybe using a different country firmware?
[Nokia Lumia 800] SuperUserMovado:
ON ubuntu 10.04 and works fine for me.

os 7.10.8107

My nautilus is corrupted so I'm not sure how to access the partitions with out it.

Bktor do you have the commands to dump these partitions?
[Nokia Lumia 800] ap3rus:
The described behavior didn't work for me until I decided to update my firmware (12070 from other region -> official 12070 from navifirm/Nokia Care servers) using Nokia Care Suite. I was using it for the very first time, all previous manual updates were installed by updatewp.exe. Since I already was using 12070, but from other region, NCS didn't allow me to update, so only thing I had is to refurbish. What I noticed is that my phone received 2 updates, not one. First update was small, after rebooting phone showed standard 'The phone was updated', NCS meanwhile started sending 12070 update, then what I noticed again - phone didn't shut down with Goodbye words, its display just became black and in Device Manager a new device Nokia DLOAD appeared (I suspect short update was some driver to be able to use this mode), there was some progress moving in Nokia Care Suite after that, finally in some minutes I got the updated but cleaned up handset. What I also noticed, I can now use vol up + vol down combination while powering on to put Lumia into this Nokia DLOAD state (feeling a short vibrate while powering on instead of long vibrate as with usual boot up). I don't have Linux, but neither Windows/Mac show disk drives. Going to install linux now :)

Hoping this helps someone ;)
[Nokia Lumia 800] surya467:
this is wat i get...but it just flicks away after i let go.

and nothing else happens

now im on ubuntu, and still not able to get it! :/

dis is so sad!

what am i missing?

i think 10207 on lumia 800 doesnt allow this!
[Nokia Lumia 800] beidl:
Have you flashed the newest version using NaviFirm or Zune?

I used NaviFirm to flash my 710 (lets face it, chipset-/spec-in-general-wise they are the same) and it works perfectly.

I'll try to dump, unpack and repack mine in a few minutes.
[Nokia Lumia 800] Bph&co:
Hi,

Could be that. That's why i keep the latest version in the phone, too lazy to

do power off and the dead boot routine for every test.

BR
[Nokia Lumia 800] biktor_gj:
Unless you can jump from ftm to qc radio fw mode and attempt to exploit it from there. Scary and dangerous, but worth checking out. Need to look at the ftm modes and see what we can find!

I also am curious about that KITL mode... need to find a compatible qpst (all i have is oooold)
[Nokia Lumia 800] lilstevie:
build 366 that was posted a page back is supposed to be compatible with windosws phone but it doesn't seem to connect to my device even with the oldest firmware on navifirm
[Nokia Lumia 800] Bph&co:
Hi,

Could you please post a screenshot/log from UsbView on your qcom loader MSD

device please ?

I mean like this:

Device Descriptor:
bcdUSB: 0x0200
bDeviceClass: 0xEF
bDeviceSubClass: 0x02
bDeviceProtocol: 0x01
bMaxPacketSize0: 0x40 (64)
idVendor: 0x05C6 (Qualcomm, Inc)
idProduct: 0x319B
bcdDevice: 0x0000
iManufacturer: 0x00
iProduct: 0x00
iSerialNumber: 0x0F
bNumConfigurations: 0x01

ConnectionStatus: DeviceConnected
Current Config Value: 0x01
Device Bus Speed: Full
Device Address: 0x03
Open Pipes: 9

Endpoint Descriptor:
bEndpointAddress: 0x81
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x02
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x83
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x04
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x85
Transfer Type: Interrupt
wMaxPacketSize: 0x0040 (64)
bInterval: 0x0C

Endpoint Descriptor:
bEndpointAddress: 0x86
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x07
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x88
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x09
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Thanks
[Nokia Lumia 800] biktor_gj:
Here you have:

Device Descriptor:
bcdUSB: 0x0200
bDeviceClass: 0x00
bDeviceSubClass: 0x00
bDeviceProtocol: 0x00
bMaxPacketSize0: 0x40 (64)
idVendor: 0x05C6 (Qualcomm, Inc)
idProduct: 0x9006
bcdDevice: 0x0000
iManufacturer: 0x03
0x0409: "Qualcomm, Incorporated"
iProduct: 0x02
0x0409: "Qualcomm CDMA Technologies MSM"
iSerialNumber: 0x00
bNumConfigurations: 0x01

ConnectionStatus: DeviceConnected
Current Config Value: 0x01
Device Bus Speed: High
Device Address: 0x01
Open Pipes: 4

Endpoint Descriptor:
bEndpointAddress: 0x81 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x01 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x02 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x82 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Configuration Descriptor:
wTotalLength: 0x0037
bNumInterfaces: 0x02
bConfigurationValue: 0x01
iConfiguration: 0x01
0x0409: "Qualcomm Configuration"
bmAttributes: 0xE0 (Bus Powered Self Powered Remote Wakeup)
MaxPower: 0xFA (500 Ma)

Interface Descriptor:
bInterfaceNumber: 0x00
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0xFF
bInterfaceSubClass: 0xFF
bInterfaceProtocol: 0xFF
iInterface: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x81 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Endpoint Descriptor:
bEndpointAddress: 0x01 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x20

Interface Descriptor:
bInterfaceNumber: 0x14
bAlternateSetting: 0x00
bNumEndpoints: 0x02
bInterfaceClass: 0x08
bInterfaceSubClass: 0x06
bInterfaceProtocol: 0x50
iInterface: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x02 OUT
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00

Endpoint Descriptor:
bEndpointAddress: 0x82 IN
Transfer Type: Bulk
wMaxPacketSize: 0x0200 (512)
bInterval: 0x00
[Nokia Lumia 800] Bph&co:
Hi,

Thanks. That makes it clear. The PID 9006 is not in the Qcom CDC drivers list,

also the number of pipes exposed and configuration is different. The FTM Qcom

device on the older SW versions is just emulated Qcom interface(maybe), but

not recognized by diagnostic sw. It's good to clear one possibility.

BR
[Nokia Lumia 800] xsacha:
Hey guys, someone in General forum found a solution to people with locked bootloaders.

It turns out someone at Nokia screwed up and released a Lumia 701 firmware with 'nokia_osbl.esco' that contains a Qualcomm bootloader + cert.

See: http://xdaforums.com/showthread.php?p=24876579&posted=1#post24876579
[Nokia Lumia 800] biktor_gj:
But hey! we're forgetting our loved Serial mode in diagnostics app. Guess what that is? Qualcomm Diagnostics for modem :)

0x05c6 PID 0x319B

Looking for good drivers working in 7 x64...

EDIT: Nice, Xsacha, downloading now, if it can be flashed, it will be flashed and tested whenever it finishes! (161kb/sec... slooow)
[Nokia Lumia 800] geom83rb:
wow very good!!!! but for lumia 800 ??? it has to be ported to its firmware???
[Nokia Lumia 800] :
It doesn't really matter, I just thought it would be interesting to know.
[Nokia Lumia 800] xorizont:
So, now i can post here and can explain.

I had a nokia lumia 710 with locked bootloader.

Since i bought my phone and flashed it twice with NCS.

One day i saw in navifirm new firmware 12050 and flashed it. Everything went ok. But later this 12050 files were deleted from navifirm. Later they were back with 12070 firmware. I tried to flash new 12070 but NCS said "cant change mode"

And later this topic appeared.

So this is the firmware 12050 i flashed (i hope so, because i have deleted and downloaded it many times)

Hope, i can be usefull for unlockers. And sorry for my english, it's not my native language)

http://narod.ru/disk/45935058001.2aaca38c9acf622332f4a81b5bf0e331/RM-803.rar.html ------ firmware 12050 after flashing which i got unlocked bootloader as i think

the same file, but uploaded to mediafire

file 1: http://www.mediafire.com/?79z739zzf5cuhxa

file 2: http://www.mediafire.com/?6fed8oaz87j9ln9
[Nokia Lumia 800] xsacha:
Using NSSPro, I tried to flash it on my Lumia 800 by taking the OSBL from that Lumia 710 ROM and sticking it with a Lumia 800 ROM.

I got:

Flash File:	RM801_12w07_prod_generic_nokia_osbl.esco

Sending certificate...Done.

Sending file...Failed.

Then I tried flashing just the pure Lumia 710 ROM and got the same thing.

Flash File:	RM803_12w07_prod_generic_nokia_osbl.esco

Sending certificate...Done.

Sending file...Failed.

It seems the cert is wrong? I hope he didn't just stick the qualcomm.mbn with the nokia.mbn cert :P

Trying Nokia Care Centre now. NCC tells me that the OSBL encountered an error.

That osbl is definitely faulty.

ERROR: OSBL reported an error! Code: 0x30025
[Nokia Lumia 800] xorizont:
Just compare this two pictures. In 2 latest firmwares the osbl file is called "updated". And i remember one day the 12050 was deleted and new version uploaded.
[Nokia Lumia 800] ceesheim:
not wrong I think , just wrong phone ID (signed for 710 only )
[Nokia Lumia 800] xsacha:
But I can flash other phone firmware. It doesn't care. Only this OSBL it says is wrong. If I ignore OSBL, it works.

It doesn't care what phone it is designed for. No special phone model signature.
[Nokia Lumia 800] ceesheim:
maybe the nokia osbl is write protected for qcom osbl's
[Nokia Lumia 800] xorizont:
I found another one osbl without "updated" may be worth trying. But it is the same as previos.
[Nokia Lumia 800] biktor_gj:
Okay it won't let us flash those files on a Lumia 800, but the .esco seems valid, so I can only think it checks against model code, as it's different, fails the flash.

SO, the question is, does this work on a 710? If it does, then unlocked loaders for all lumia 710!
[Nokia Lumia 800] xsacha:
Hm yeah, that's exactly the same file (same creation dates of valentines day too).

Any way to mod the sign for a 710 -> 800?
[Nokia Lumia 800] xorizont:
second one i got from another user)