gt-i9300 cm13 lock error help

hi
i've try cyanogenmod 13 for my s3 >>>idid everything right >>wipe cache,dalvik , system and even internal storage >>then i install cm13 from s card and reboot( im using TWRP recovery ) >>>>after setup when i try to choose network i cant move to next and lock sign appear pls help

Network problem on SIII GT-I9300 with cm-11

Hi guys, I'm only starting this thread because I searched over 50 pages and tried different methods already.
After my Xperia Z3C decided to have major issues on the screen, I decided to go back to my SIII while I try to fix the Z3.

My S3 is still running perfectly under cm-11, the only problem is that I can't connect any calls, if I try to make a call both phones rings normally, but when the person answers the phone (or the other way around) the connection goes mute, no sound at all. After I hang up the call the SIII loses the networks for a couple of seconds and then it comes back up.
Viber and Skype works, messaging works, 3G Mobile Data connection works with no problem, and the phone only loses signal when I place or receive the calls.

I upgraded from cm-11-20150901-SNAPSHOT to cm-11-20160115-SNAPSHOT, installed a new modem, checked APN configuration and IMEI, the only thing left to do is to Odin flash back to stock android, and actually I don't want to do that, I love cm since the day I installed.
One thing to notice is that the SIII worked for quite some time with cm-11 without presenting this problem.

What else can I do? Thank you very much in advance.

GT-I9300 " No efs directory or folder " Solution Help

tried a lot of efs files but problem is not solving.........

any solution?

Galaxy SIII GT-I9300 WIFI problem.

Hello,
Recently my s3 wifi has stopped working... it wont connect to any wifi and would simply "save" it but wont connect(it says connecting for a few seconds but doesnt connect). Ive had this phone quite a long time and ive rooted it and flashed roms a lot aswell but for six months or so i just flashed the samsung stock firmware for it and have been using it no problem bu suddenly it stopped working. i tried resetting, flashing ROMs, trying another stock firmware did te wifi power saving thing but it still doesnt work. What i saw was when i like reset the phone with the sim card installed the wifi wont work but when i reset the phone without the sim the wifi will work but when i insert the sim back again itll stop working again. i tried changing sims but still asme result. Any help would be appreciated.
Thanks

is it possible to install Windows phone's OS on to the Samsung Galaxy S3 GT-I9300?

I'm wondering if its possible to install Windows phone 8 on to my android which is fully rooted, I have played with custom ROM's on it before, I just wasn't sure if I'm able to install Windows phone 8 on to my android, or even where to get the ROM if I could, any help with this would be greatly appreciated as I am starting a new project for the Windows phone and don't have a test subject I can play with.

Thanks :)

S3 GT-I9300 unable to connect 3 network uk

I have tried about 10 different roms and they all have this error. I have been searching in here and I see other people with similar issues and I have tried many different modems and I'm now tearing my hair out. It's my mums phone and she wasn't hearing the person on the other end so I flashed a stock rom 4.3 and that's where the fun began. She is on the 3 Network in the uk and the imei is correct. The csc was in kor last i looked but I changed that to cpw. I have tried btu but that's just the same. Emergency mode only and unable to connect try later. Could anyone anyone the on 3 network in the uk point me towards a modem that works. I have flashed using Odin and from the memory card using the other method but it always ends in failure.