[Mike Cloak]

i have been getting the infamous 8018830f (update can download but not be opened) on my lumia 520, it is on 8.0 right now and i have tried everything, removing sd card, restoring phone, leaving screen on etc. im currently not in the development program, so im just wondering what other suggestions i can try to get it updated to denim

[pankaj981]

Have you tried updating using Lumia Recovery Tool?

[DaveGx]

Same here with 1520 8.1. Dont know what to do

[Mike Cloak]

Have you tried updating using Lumia Recovery Tool?

well i actually did, and the program will not recognize my phone

[pankaj981]

Then have you tried Windows Phone Recovery Tool?

I can certainly say that if you are willing to flash a ROM then it would definitely work, not sure if you are comfortable with that approach though

[Mike Cloak]

i thought the lumia recovery and windows phone recovery was one in the same? im comfortable flashing a rom, didnt even think that was possible

[pankaj981]

i thought the lumia recovery and windows phone recovery was one in the same? im comfortable flashing a rom, didnt even think that was possible

Windows phone recovery tool is a separate program. And it can be used to restore/flash original firmware.

Since you're willing to flash, let me start by asking, what carrier is your phone?

[Mike Cloak]

i have att

EDIT:finally got it working in windows phone recovery, but now its stuck on reading phone information. i might jst have to flash rom

[pankaj981]

In that case you can flash the Mexico LTA ROM, it's unbranded and has Denim (no firmware only OS)

[Mike Cloak]

ok i an do that, are there any instructions on how to do so

[pankaj981]

ok i an do that, are there any instructions on how to do so

There is a sticky with video instructions in the 920 forums which covers how to dead flash a 920, you can replicate it for your 520. You model variant is RM-915 so search for Lumia 520 Product Code and look for the RM-915 variant.

Edit: You can flash this firmware product code:
059S2X9 RM-915 VAR BR CV

You'll have more insight after watching the video. The process is safe if done carefully. And I've personally used the above firmware on 2 of my 520s and they were stable and completely unbranded.

Good luck!

[faddy16]

Same problem with me guys. Unable to install w10 on my lumia 520. The update is downloading but not installing. Anyone know how to solve this issue. :\