downgrade os from dev version to lumia black.what is size of file?

[WPCentral Question]

hi guys im trying to downgrade os from dev version through nokia software recovery tool 1.4.3 problem im facing problem while downloading the file it says 1.29 GB when that's completed to 100% again it restarts to 0% and so on i've left it like that for now but how many times will it continue it's eating up my data.. what's the original size? please help me figure out..
Thank You in advance.

 

[Ryan ODonnell]

I don't use recovery tools. I use Nokia Software Updater for Retail 4.2.1 as it has Cyan support. Give Nokia Software Updater for Retail 4.2.1 a go! Should be around 1.4GB, but depends on your Lumia device.

 

[sreekarn]

lumia 520!

 

[Ryan ODonnell]

lumia 520!

May be around 1GB-1.2GB

 

[jankocharlie]

Yes 1 - 1.4GB