Hello All, I will post here the issue I have (copy/paste) from the mail I sent to Asus support, maybe you have any ideas. [Problem Description] Hello, I have the following issue with the phone: 1. performed a master reset (D-pad left + Power) 2. after reboot, the following error appears: "Close the battery cover and restart the device to complete first-time setup" - this is a loop, it appears after each restart. 3. performed another master reset, same thing 4. In this situation, I tried to perform an update. I downloaded several versions from the site. Each time the device recognizes the update software, but when I select ok for update, the error is "Invalid system file update. Contact customer service and request a system update file". 5. replaced the .system folder, according to this guide https://support.garmin.com/support/searchSupport/case.faces?caseId=%7B7b51a1c0-0878-11e0-c4e0-000000000000%7D So far, no result. The same error. Please support.