Developer enhancements update destroyed my phone (UPDATE: works again)

[Rasetech]

After my installed the developer enhancements update I am not able to open any app. Whatever I do it tells me "this app cannot be opened, maybe there is a update in the store" - but hey store brings the same message. I think I need to use the recovery tools when I come home cause the same message also appears when I want to access the settings for a hard reset.

Update: After a few minutes the phone seems to work normal again, but the developer enhancement update popped up again with the message "we could not finish the update"

 

[madman333]

Same here. Now I can open settings, but not anything else

 

[Rasetech]

It seems that most apps are working for me, found one until now where the message still appears.

 

[Rasetech]

The same game again after the phone tried to install that damn update again.

 

[jojoe42]

I had similar issues - half of my apps worked but the other gave me that error message. I've said this in a few other threads because I remember this trick from WP8 days, but this is how you get those apps (that give you that error) to work:

Try installing a new language pack or keyboard. This is because the way a language pack is installed is similar to how an update is installed - it involves migrating your apps from a system partition. Sometimes (like with the last update), the migration process forgets to migrate everything over and apps crash and don't work. Go to settings > language > keyboard and add one in that requires a download. Then go to phone update and install it (called additional language support). Just let it install and leave the phone plugged in for 1-2 hours. If you have Glance enabled, the glance screen should be showing before you start using it.

 

[Rasetech]

Thanks for the tip