PLEASE HELP! G705 no network available...

Hello,

I'm new at this so forgive me if I'm posting in the wrong place or this error has already been posted. I could not find any answers.

I have an unlocked G705. I flashed the phone to one of the W7xx series to enable conversations mode in SMS. And everything worked fine, until I did a master reset on the settings about a month ago and the Conversations mode disappeared. Didn't mind too much... phone still worked fine...UNTIL

Today, I was charging my phone and playing music when all of a sudden I got a weird error message about how the battery cannot be charged and I must use a sony ericsson battery???

Then I unplugged my phone and turned it off. I turned it back on to see a new error message "Please insert CORRECT sim card"

After turning the phone off, taking the battery and sim out and restarting the phone, nothing had changed. I was unable to access anything in my phone.

I plugged the phone back in to the charger, turned it off and on and now there is no sim error but I still get the error about the wrong battery and my phone not being able to charge and MYPHONE CANT FIND ANY NETWORKS, and WIFI won't work and applications like Bluetooth are unavailable.

PLEASE someone help me and tell me what to do. I am completely lost. PLEASE HELP.