Is it safe to update firmware using Nokia Software Updater for Retail?

[yentenebcc_1]

What exact version of Windows Phone 8 did you install? It sounds like you have installed a version that isn't compatible with your particular handset. Which could explain why you are not getting proper 3G.
If you can you should flash back to the correct Firmware for your device and then wait for the official GDR2/Amber to be released.
Actually, come to think about it, Microsoft have made GDR3 available as a preview for developers. However, if you do a search on the forum for GDR3 you will find instructions on how to get the update without having to be a developer.

Sent from my GT-I9300 using WPCentral Forums mobile app

For you kind reference, follow is the original version and updated version.

1.This is the updated version and


2.This is the original version and


But how can i flash back to previous/orginal version?

 

[SajId Shaikh]

Flashing your phone even through Nokia software can void your warranty. So, is it a good idea?

 

[Vitou Tun]

i have install it but when connect the phone it said software info not found