z500 / z105 imei change problem !!!

[lolly pop]

ive been trying for 3 days to repair my imei number in my z500 but cant sort it.it

im useing umts / winimei_z500. it reads the phone and all the codes without any problems, but when i select "write imei" it all goes well until after 59 seconds it gives the message " caldate is empty... fail "

can enyone help me sort this problem out please, as as far as i can work out, after reading hundreds of web pages, its 100% impossible to change the imei on a z105 or z500 without some expensive box or protected software.

loads of you probably have the software and leads but i bet no one has actually done it yet .??

if someone can help, they wont just be helping me, but hundreds of people who have erased there imei number when they unlocked there phone.

so all we really need to know is....... what does "caldate is empty... fail " mean, and how can we get by it !

thank you to each person who has the knowledge to post a reply.

lolly