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

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kevnb
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Originally Posted by filip.navara View Post
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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deylo
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hey careful with this method. i did that and cant flash with NCS due to an OSBL error. if someone finds a solution please post.
 
mariosraptor
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Quote:
Originally Posted by kevnb View Post
thank you so much, I thought i was stuck on firmware I didnt want. Was searching for a week!
this totally worked for me. thank you.
If i have helped you in any way, please hit the, THANKS button!!! Peace!
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vova1609
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http://forum.xda-developers.com/show....php?t=1611034
 
italianomedio
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hi, i have a question, if I jailbreak my lumia 800, can i undo the jailbreak again?
(sorry for my english)
 
sebastianlow
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(Last edited by sebastianlow; 21st April 2012 at 04:02 PM.)
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I have searched everywhere but I can't seem to find Nokia Care Suite for my Lumia 710. Can anyone pls link me to somewhere I can download Nokia Care Suite? Thanks.

Edit: Found it! ^_^
 
SKill08
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Someone update this thread for "Full-Unlock" Lumia 800 please..
 
theshowman
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My Roger's LuMIA 710 is RM-809 and not RM-803 based on the product number.

But When using NCS, it shows up as RM-803 in the connection manager and in the Type Designator of Basic Info.

I must say that I did venture off to try to burn the QC bootload but it failed during initial validation, but luckily didn't brick the unit.

Any thoughts as though whether this new boot loader/unlocked ROM will be compatible?
 
akshaybz
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Does the Lumia 710 full unlock ROM mentioned in the OP have any bugs?
 
surya467
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Originally Posted by akshaybz View Post
Does the Lumia 710 full unlock ROM mentioned in the OP have any bugs?
yes it does..hold on for sumtime....till all are fixed.
http://nokiawpblog.com

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Nokia 5800 with WP8 Apollo Firmware>>
Lumia 800 Black with Official WP 7.8
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