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Interop-Unlock Lumia 800 plus bootloader and NAND access [Q&A]

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By suzughia, Member on 14th April 2012, 05:37 PM
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19th April 2012, 07:51 PM |#171  
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Quote:
Originally Posted by Bph&co

Hi,

If you get WinHex on windows, you can open the the Qcom disk for raw access
and play with each partition and edit on a byte level.

BR

Thanks for the suggestion! I'll have to look into that and give it a try.
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19th April 2012, 09:48 PM |#172  
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Hi,

I cant check for unlocked bootloader. Wibdows 7 shows 5sec a Windows Phone at Devices and Printers and then the Phone boots with Windows.

tested on 4 machines all show the same



Lumia 800

Carrier E-Plus (german)

Rom Version 7.10.8107.79

Firmware Revision 1600.2487.8107.12070

Device HW Revision 112.1402.2.3

Radio HW Revision 8255

Radio SW Revision 1.6.00.24

Sent from my HD7 T9292 DS v7.6 using XDA Windows Phone 7 App
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20th April 2012, 09:39 AM |#173  
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hi. i have lumia 710 hw revision 2.1. but i have updated through care suite to 12070. i can downgrade, can i? thanks
20th April 2012, 10:18 AM |#174  
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Quote:
Originally Posted by mariosraptor

hi. i have lumia 710 hw revision 2.1. but i have updated through care suite to 12070. i can downgrade, can i? thanks

sure, you can
20th April 2012, 11:09 AM |#175  
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ok i have used the firmware to downgrade bootloader and it ended installed the qualcomm msm drivers and etc.
i will appreciate some help, i am a fast learner but this is new terrain for me.
now, is the only way to flash the custom build which is interop-unlocked, via Linux Only?
it has an .nb extension. thanks
20th April 2012, 02:39 PM |#176  
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Quote:
Originally Posted by schulz1199

I cant check for unlocked bootloader. Windows 7 shows 5sec a Windows Phone at Devices and Printers and then the Phone boots with Windows.

Keep the volume button pressed. as soon as you let go the phone reboots.
20th April 2012, 02:50 PM |#177  
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Hi! I have lumia 710 and I'm curious to know: if it is possible fill through the interop linux firmware on the phone, can we then create a full unlock firmware and also custom firmware? and if so, when roughly? =)
(sory for my english, it was translated with google, if i made lot of mistakes, please don't throw slippers on me =)
20th April 2012, 04:01 PM |#178  
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because i suck in linux can someone make an linux flash and backup guide.
i have ubuntu 11.10 installed i have connected my lumia710 and have backed up 2 folders, IMAGE and KEYSTORE.
i do not know how to flash the interop firmware from post one, cause i have never used linux.
thanks in advance.
20th April 2012, 08:52 PM |#179  
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can somebody tell me how to relock the bootloader so i can be able to flash via NCS again. i am asking this cause i can't manage to flash a custom rom although i have unlocked the bootloader.
21st April 2012, 12:04 AM |#180  
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Is Interop unlock the only way to edit the registry on this device?
21st April 2012, 02:10 AM |#181  
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Quote:
Originally Posted by filip.navara

Ok, I tried it on mine. I have rewritten the whole partition with nokia_osbl.mbn extracted from RM803_12w07_prod_generic_updated_nokia_osbl.esco. It booted just fine and Nokia Care Suite flashing works again.

Here are the exact steps I used to recover the Nokia DLOAD bootloader after unlock:
1) Download _http_://nds2.fds-fire.nokia.com/p/d/fds_fire/1203/2211/7000248136/RM803_12w07_prod_generic_updated_nokia_osbl.esco
2) Rename the file to RM803_12w07_prod_generic_updated_nokia_osbl.zip and open it. It should contain two files, one will be named nokia_osbl.mbn. Extract that one.
3) Connect the Nokia 710 phone in the Qualcomm bootloader mode to the computer (ie. boot it with holding the volume up key) and wait till it shows as a disk.
4) Open HxD as administrator and select Extras -> Open disk. Find the Removable disk that matches the connected Nokia device. Don't forget to uncheck the "read-only" mode! The partition with the boot loader should start at sector 1001, you can navigate to it using the toolbar at the top.
5) Verify that it starts with the bytes 0B 00.
6) Open nokia_osbl.mdn in HxD and copy the whole file over to the disk starting at the sector 1001. Save it.
7) Unplug the device and reboot it. Now it should be flashable with NCS again.

thank you so much, I thought i was stuck on firmware I didnt want. Was searching for a week!
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