Unable to downgrade phone by lumia software rrcovery tool

alok416

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Sep 27, 2014
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Hii i have lumia 1520.1... I have installed dp 8.1 update 1 on my phone.. I want to downgrade to lumia cyan.. But whenever i m going to downgrade from dp preview to lumia cyan... Everytime i download package of 1.62 gb of my lumia rm-937 it shows corrupted by lumia software recobery tool..

It downgrade easily before when spftware was named as nokia software revovery tool..i was able to downgrade.. But it updated few days ago it updated to lumia software recovery tool .. Please say whag to do.. How to downgrade?
 

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