Help with downgrade firmware 5.3 to 5.2 and error messages

hi guys

change by mistake my 5.2 firmware to 5.3 and now i cant set it back as i cant find the 5.2 version. when trying to run the 5.3
i get an error
can someone help with how to solve error messages i get when i tried to update the software
“serial port error the 1/0 operation has been aborted because
either a thread exit or an application request”
and if i ignore and when trying to run motor config
“detection fail reason over voltage fault check voltage is below set limit”
was trying to locate abnormal volt setting in motor config but couldn’t find anything