Force the new 12072 update on Lumia 800

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Hi guys, if you are like me and didn't receive the new 12072 update yet, it's very easy to force it on your Lumia 800. I did it this morning, and my phone is locked and branded, and everything went well, so here is how to make it.
First, grab the update It's a cab archive, so don't extract it, just leave it as it is.
Then download this tool and install the x32 or x64 version according to your configuration.
Now download this one and simply extract it in a folder. Connect your Lumia to Zune and wait for the sync process to end. Close Zune. Put the .cab file in the same folder than the tool called WP7 cab sender, at the root of the file "WP7 Update Cab Sender.bat", it's important.
Launch the batch file "WP7 Update Cab Sender.bat", an msDos window should open, asking you to choose a letter for an option: choose the option of your choice but don't forget to make a backup before installing the new update.
Then you only have to wait for the backup / update to end. Don't close the MS-DOS window before the end of the process. It's done, your phone is now running the new update.
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29th April 2012, 06:13 PM |#2  
Senior Member
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Well technically its a command prompt and not a "MSDOS" I update mine a few minutes ago. The whole procedure with backup should take about 20 minutes.
29th April 2012, 06:20 PM |#3  
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Yup. And the Volume bug does indeed seem to have disappeared

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29th April 2012, 07:22 PM |#4  
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Big Yes,

it seems to fix the volume bug, which was a big issue for me.
For the rest, I don't know; I only have had it for 5 minutes!
29th April 2012, 07:32 PM |#5  
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Thank u a lot,the bug audio disappear now
29th April 2012, 09:11 PM |#6  
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Thanks for instructions/link.

Easy update, everything working.
29th April 2012, 09:45 PM |#7  
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Seems that the audio bug (using the headset during a call) disappeared for me too.
29th April 2012, 10:18 PM |#8  
voluptuary's Avatar
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does this mess with the bootloader at all?
29th April 2012, 11:14 PM |#9  
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can't w8 to try it~~~
29th April 2012, 11:32 PM |#10  
Thanks Meter: 0
Just got the update today, Vodafone, Netherlands.
(Pre-ordered Lumia 800 from Vodafone webstore)
30th April 2012, 07:37 PM |#11  
apollo15rover's Avatar
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Flag burbank, ca
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Thank God for this site.. The did the links and instructions from and the cab sender refused to see the update.

Used the ones in this post and the update went PERFECTLY!

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