sl45i imei changing / or sl45i->sl45 downgrade

[stephane1w]

hi everybody,

i need some advice

well, i have a sl45 that i upgraded myself to sl45i fw43

Now i have some ****, it says i cannot log on the network, seems like an IMEI problem or something like that

so, how to change the imei number ? (i didnt find softs for the (i)


or how to downgrade to sl45 (if not dangerous) and then change imei , (i found softs, maybe they work)



Thanks all


ps: i goto holidays in two days and it would be good if that pb were already solved