(IMPORTANT!) Strange error in ChromeOS - Google Play Store Error Code 7

Hey! I recently encountered an annoying error that I can’t fix, and It’s Google Play Store Error Code 7.

So, I decided to sell my Chromebook Acer Chromebook R11 (Codename: CYAN), I restored ChromeOS to it, and everything looked okay until I configured and wanted to open the Google Play Store, the app loaded for a long time, more than 5 minutes, after this time a Error Code 7 popped up

I tried to do Powerwash, I tried to Reinstall ChromeOS, and still no luck, I also tried tutorial by PatOr on YouTube: “How to repair Play Store Error Code 7 on Chrome Os”

But it didn’t help…

In addition, it also stopped working:

  • Bluetooth
  • Camera
  • Microphone
  • Linux terminal

A lot of people suggested I disable Developer Mode and then do a reinstall of ChromeOS, but when I try to disable it, something like this happens:

You will need to reset GBB flags before you can disable Developer Mode.