[Q] Optimus G F180S no IMEI + no network signal + baseband issuse

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http://forum.xda-developers.com – converted F180S into E975 1- flashed E97510D_00.kdz on my F180S 2- hard reset by volume + and Power 3- rooted the phone 4- installed back F180S baseband now having below issues 1- with F180S baseband ... cellphone shows IMEI # ..only without SIM and when SIM is inserted ....IMEI disappears and no network signal 2- with E975 europe baseband......cellphone works but week network signals 3- i have tried three different below kdz ...but problem remains the same E975 (Europe, Hong Kong, Vietnam) F180S (original korean F180S20L_00.kdz) NEED HELP (HowTos)