bmw x5 key problem

[nynol]

Hello. I have problem with bmw x5 e53. Car was discharged battery and don't crank. EWS have fault "wrong changing code, key1". I was prepared new transponder pcf7935 and now i have fault "wrong changing code, key 3". I was change ews, but still don't work.
Live data show "wrong random code"
where is problem?
480239
480238

[brend]

What tool you use for this?

[nynol]

for ews i use xprog, for diagnose pasoft 1.40

[brend]

for ews i use xprog, for diagnose pasoft 1.40

for key prepare what tool?

[kiszka]

..........

[electrones]

To prepare key EFfi and zedbul is good pcf7935 job done, if not work u need sync EWS with ECU
Cheers

[nynol]

for prepare I use effi zedbull, i try sync dde - ews and dont work

[nynol]

problem solved. thank You kiszka

[rhj]

problem solved. thank You kiszka


Hi,


Can you explain to me how you did to solve your problem?


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Thanks,