Nexstar Flash - verification Fail...
Posted: Sun Feb 12, 2012 8:30 pm
Hi Folks.
I'm having problems flash updating my CPC 1100's Nexstar handset, and could use some advice from experienced Nexstar Flashers. Oh err missus!
I'm using a Windows7 64bit PC, and an after-market serial-usb adaptor from an Astro' supplier which shows up in Device Manager as 'USB Serial Port/ COM3'.
Next I installed the HCUpdate v1.1.4 program from Celestron's website, connected up my handset (running ageing firmware version NXS 4.12) to both the telescope and the PC's USB port as Celestron recommend. After simultaneously pressing UNDO & INFO etc. I used HCUpdate to download and flash the handset to the most recent version (NXS 4.20).
The installation progressed smoothly up to 100% then started to "Verify" the installation... and immediately fell over with an error message. The handset is frozen, reading "Transmitting..." despite cycling the power switch on & off. I get the same result if I repeat the procedure, and also with the older firmware versions available - the verify always fails, leaving the handset 'bricked'.
Re-installing the original version (NXS 4.12) brings the handset back to life - Phew! - and it clearly installs and verifies properly.
So I've got a working handset again (plus a few more grey hairs) but I'm rolled right back to the out-dated firmware I wished to update. Wondering if I should try and borrow an old XP machine, preferably with a COM port.
Any hints or tips gratefully received.
Regards, Les.
I'm having problems flash updating my CPC 1100's Nexstar handset, and could use some advice from experienced Nexstar Flashers. Oh err missus!
I'm using a Windows7 64bit PC, and an after-market serial-usb adaptor from an Astro' supplier which shows up in Device Manager as 'USB Serial Port/ COM3'.
Next I installed the HCUpdate v1.1.4 program from Celestron's website, connected up my handset (running ageing firmware version NXS 4.12) to both the telescope and the PC's USB port as Celestron recommend. After simultaneously pressing UNDO & INFO etc. I used HCUpdate to download and flash the handset to the most recent version (NXS 4.20).
The installation progressed smoothly up to 100% then started to "Verify" the installation... and immediately fell over with an error message. The handset is frozen, reading "Transmitting..." despite cycling the power switch on & off. I get the same result if I repeat the procedure, and also with the older firmware versions available - the verify always fails, leaving the handset 'bricked'.
Re-installing the original version (NXS 4.12) brings the handset back to life - Phew! - and it clearly installs and verifies properly.
So I've got a working handset again (plus a few more grey hairs) but I'm rolled right back to the out-dated firmware I wished to update. Wondering if I should try and borrow an old XP machine, preferably with a COM port.
Any hints or tips gratefully received.
Regards, Les.