One click Astoria installation:
- Download WPinternals: https://github.com/ReneLergner/WPinternals/releases/latest
- Download Leaked Image from this Link: https://drive.google.com/drive/folders/1o-Eew2pxV9biXZjINLVk0k9GdvOjpcHw?usp=sharing
#Stock/Retail Firmware For Lumia 550 : https://drive.google.com/file/d/1pBi3vl-bV2UTBP2_GH95g7rwaVH4mzD1/view?usp=sharing
Optional: To unlock Bootloader You can use WPinternal with Stock FFU and Emmergency file MPRG8909_fh.ede. If still facing issue, Download the WPinternal Config folder and place them into C:/ProgramData Now try unlocking bootloader, It will unlock in a minute, where it originally takes 15-20 minutes.