I have a used pride nine,blue light is flashing and beeping,why is this

SOURCE: I was getting nine flashes and know the green crt

Sounds like a bad green crt. These Sonys are bad about that.

SOURCE: Blue parrot lights blue and red keep flashing and there aren't any beeping noises

If your headset is 6 or more months old, it could be the rechargeable battery is due for replacement. The power supply or battery is the one thing that can cause all sorts of odd symptoms. I read your post and put a known bad battery into one of my 3 Blueparrott B250-xt headsets and did just as you described. If you would like to order a new battery for this headset, email me at [email protected]. They are $20 and shipping is free.

SOURCE: HP Compaq 6005 Pro, nine beeps

9 BeepsNine beeps means that there has been an AMIBIOS ROM checksum error. Literally, this would indicate an issue with the BIOS chip on the motherboard. However, since replacing a BIOS chip is sometimes impossible, this AMI BIOS issue is usually corrected by replacing the motherboard.
Use utility tool like RegInOut to repair corrupt registry files and keep your computer safe from being damaged.

SOURCE: Pride colt 8xl blue led light flashes 5 times then stops and flashes 5 times again and keeps doing this

Hi try this... cheers