Great - no longer bricked.
What does SADP now show for the firmware version? If you used the 'downgrader' it will be 5.2.5 An old version, but a good start point.
The latest for R0 cameras is 5.4.41
Model DS-2CD2232-I5
Serial No. DS-2CD2232-I520150424CCCH514230330
Firmware Version V5.2.0 build 140721
Encoding Version V5.0 build 140714
But - what is now showing as the 4 upper-case letters in the serial number in SADP?
If those are CCCH then the camera is a China region version and will need the 'enhanced MTD hack' to convert to English before being able to be upgraded to the latest firmware.
Yes it is a CCH, I might give it a shot to upgrade.
This method will take you though that :
Unbrick and fully upgrade your R0 / DS-2CD2x32 IP cameras -
R0 / DS-2CD2x32 BrickfixV2 brick recovery and full upgrade tool - enhanced.