How To CNX Nano Boot loader with RS232

How To CNX Nano Boot loader with RS232


If “100” displays on the front panel, boot loader with RS232 is feasible. “100” may not come on at first time, try a couple of times. If not, need to send your box for repair.*

1. Turn the box off from the back.
2. Connect your box and computer with RS232.
A. Null Modem Cable is Required for ALL CNX Products.
3. Go to your computer.
4. Close all the applications completely or restart the computer.
5. Open loader file.
6. Click Connection and select Connect.
7. Select your port according to your computer and click Ok
A. Check COM# open ok on the bottom.
8. Click Set-top Box and select Firmware Upgrade.
9. Click Select and look for “.ldr”.
A. If you don’t see it, type in “*” in the file name and press (only) Enter on key board.
10. Double click on “.ldr” file.
11. Click Upgrade
12. Turn your box back ON. “100” should be display on front panel and should see Debug Print loading “ex_send”.
A. If you don’t see “100” on front pane, turn your box off and on till you see it.
13. Wait 5 minutes.
14. “ex_send” should’ve been stop.
A. Indication of finish loading: widen the loader window box and should see “Branding to loaded code image’s entry”
15. Click Close to close the loader window box.
16. Close Mvision window box.
A. Before you reboot you box, Mvision window box MUST be closed.
17. Turn your box off and on from the back.
18. Now you have TV again.



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