Winphone 8.1 Update Error 8018830f after dowgrading from W10M Interop Unlocked

alexwaston

New member
Sep 12, 2016
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Sorry about my bad English
My device is Lumia 530 (RM-1017_1008) and upgraded to W10M by unsupported way, then i used DHT Upgrade Advisor to get 14393.448 build. installed Interop Tool and checked all features in Interop Unlock tab
Then i used WDRT to go back to 8.1 (Cyan) because of battery.
But when i update the phone, it stop at 'Preparing to install 14%' and showed 'The update was dowloaded, but couldn't opened (8018830f)

I tried went back to Stock for many times by WDRT, but this problem couldn't sovle.
I tr?ed to use Prev for Dev to get Preview Build, it works but there are 3 update (i think this is a bug) and after installing, my device works slowly.
How to solve this problem?

https%3A%2F%2Fs15.postimg.org%2Fogiixcyx3%2Fwp_ss_20161125_0012.png

https%3A%2F%2Fs15.postimg.org%2F3kw8m42pz%2Fwp_ss_20161125_0013.png

https%3A%2F%2Fs15.postimg.org%2F882anvq2v%2Fwp_ss_20161126_0001.png
 
what update are you trying to install? is it windows 10 or 8.1 ? you can flash the firmware using WDRT with the latest firmware available for your device on MS servers.