5503 CU fw file

[AlexYang30]

Hi robots,
I tried to replace an internal battery of my 5503 CU,
then CU did not turn on ......
pwn + con , no luck , say "load default ..unsuccess"

so would you please send me a copy of fw.bin to me
Thanks

[robots]

Was the CU working before battery update ?

[AlexYang30]

yes

[AlexYang30]

Hi,
my email : alexyangtw@hotmail.com
Is that possible to ask some questions in private ?

[Middim]

I have the same situation with missing firmware. Was this ever figured out?

[Jesse-EE]

Was the CU working before battery update ?

Does the CU also strictly use battery backed RAM or does it use any sort of flash memory?