- Format new SD Card with fat32
- Erase all data in SD Card
- On the Flyer, go to Settings, Applications, Development and then make sure USB Debugging is checked
- Run Goldcard Helper app, took the data through notes sharing for copy paste. On this step, we will have 2 CID. Please ensure you took the correct one.
- Go to the website shown on the screen and follow the directions to get your Goldcard image.
- Took the image than put into goldcardtool
- patch with gooldcard tool
- Copy ZIP file to the root of goldcard SD Card external (PG41IMG.zip)
- Run file RUU.exe when HTC Flyer connect to PC USB charging, USB debugging ON and fastboot OFF
- ROM flashing process will took around 10 minutes
However you can go to the original page to make a goldcard for your HTC phone. On that page, some additional information have been provided. By the way, hopefully the instruction above for how to make goldcard useful. And your error message Customer ID Error gone.
