Download Os700g Usb All Sunplus 1507g 1507g Blue Bluestar 7070hd Svn100 20190617 Rar -

Ensure your hardware ID matches "1507G Blue" to avoid "Invalid File" errors.

Select the file and press OK . Do not power off during the process. ⚠️ Important Notes Ensure your hardware ID matches "1507G Blue" to

If you'd like to troubleshoot a specific issue with your Bluestar 7070HD: Ensure your hardware ID matches "1507G Blue" to

Always back up your current "Dump" file before flashing new software. Ensure your hardware ID matches "1507G Blue" to

Mention the you see (e.g., "Invalid file", "No signal") Provide the current software version in your menu settings I can then give you more specific recovery or setup steps.