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1. Needs a few tweaks for a much more efficient app.This is a great app to use for both kids and adults who like to keep track of all the sets they have, and what I like most is how it counts up how many bricks and pieces you have altogether, regardless of set or theme.

2. The app does a a great job of showing the step-by-step instructions for the build and allow you to adjust the orientation and magnification to see additional details you might not see in the manual from the box.

3. I have noticed that a lot of the older, retired sets are not all there yet, and some of the newer sets from this year are still not in the app's database (I assume it's a slow process).

4. It would also be nice to include polybag sets as well to make the themes more complete.I wish I knew about this app sooner.

5. Digital instructions are so much easier to use with the zooming and the paging! The latest update moves the paging arrows out of the way of the images too! I do think a couple of things would be great enhancements to the app.

6. I haven't tried the 3D instructions yet, but they sound like a neat concept that could help less experienced builders have an easier time, or give seasoned builders a fresh experience.

7. But that is minor compared to it's primary use.Doesn't have all the sets available I wish we're.

8. I also think it's a bit unfair for others to provide a lower score given that the older sets may not be in here.

9. He loves looking through all the sets and wants so many I can't keep track.

10. EDIT: It seems they've added many older sets to the app.

11. I also like that you can add sets you own to a collection, even providing a total piece count of all the sets combined.

1. Fix LEGO Not Working/Crashes/Errors/Unresponsive & Black/White screen:

1. Restart LEGO: Restarting the app will resolve most errors.
2. Update the LEGO App. Here is how:
   1. On Android goto PlayStore » Search for "LEGO" » Open LEGO® Builder » click "Update".
   2. On iPhone, goto AppStore » Your profile » Available Updates » Check for LEGO » click "UPDATE".
3. Clear LEGO® Builder app cache: Clearing cached data will force your app to retrieve the latest data directly from LEGO servers.
   1. On Android, goto Settings » Apps » Select "LEGO® Builder" » click Storage » click "Clear Cache".
4. Check LEGO app permissions. If any of these permissions required to use your device's features are disenabled, LEGO might not work.
5. Uninstall and reinstall LEGO. If nothing else has worked, completely uninstall LEGO then reinstall.
6. Restart your device. Last, restarting your device can often clear most problems causing LEGO not working

2. Fix LEGO Server issues & Internet Connection

1. Check network connection: An unstable Internet will make LEGO be unable to connect to it's servers. Ensure your wi-fi is working then restart app.
2. Disable VPN: VPN can cause connection errors and lead to LEGO not working. Make sure all VPNs are off
3. Enable background data: When Background data is turned off, LEGO may not be able to connect to the Internet when running in the background.