[Miscellaneous Android Development] tonkits:
i got a phone recently through trade. its a s3 clone made in vietnam. i managed to root and install cwm on it. but after flashing a custom rom for another s3 mt6575 i found out that the rom isnt compatible and thus left me with a messed up partition. i flashed back to cwm restore and all is working fine until i decided to fix the partition (i originally have 2 gb internal which then was divided into 4 500mb parts because of a wrong rom) i accidentally flashed the wrong preloader and dsp_bl. it wont boot but with lots of rom downloads i found the right preloader and dsp_bl which brought my phone back to life. the only problem is i have 2 working roms for my phone but both cant detect my sim cards. i tried copying nvram files and even porting said roms replacing modem.img etc. but nothing would allow my phone to detect my sim cards.

my last resort is to find a stock rom for my device to fix it. i do have backups for cwm but none of it would restore it back. the backups were workinbg before but after flashing wrong preloader and bringing the phone back to life it wont restore properly. i always end up stuck in black screen after restore. even tried proting roms using my cwm restore but still nothing. even tried tinkering with the restore but still nothing. im hoping i could restore it if someone who has the same phone could help and send me a working stock or even custom rom for the same phone. here is my build.prop from my cwm recovery

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=IMM76D

ro.build.display.id=IMM76D.GT-HI9300ZSALE9

ro.build.version.incremental=eng.root.1369053524

ro.custom.build.version=1369053524

ro.build.version.sdk=15

ro.build.version.codename=REL

ro.build.version.release=4.2.1

ro.build.date=Mon May 20 20:42:31 CST 2013

ro.build.date.utc=1369053751

ro.build.type=user

ro.build.user=root

ro.build.host=wwd

ro.build.tags=test-keys

ro.product.model=GT-I9300

ro.product.brand=samsung

ro.product.name=GT-I9300

ro.product.device=GT-I9300

ro.product.board=GT-I9300

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=GT-I9300

ro.product.locale.language=en

ro.product.locale.region=US

ro.wifi.channels=

ro.board.platform=SMDK4x12

# ro.build.product is obsolete; use ro.product.device

ro.build.product=GT-I9300

# Do not try to parse ro.build.description or .fingerprint

ro.build.description=mobitek75_ics2-user 4.0.4 IMM76D eng.root.1369053524 test-keys

ro.build.fingerprint=alps/mobitek75_ics2/mobitek75_ics2:4.0.4/IMM76D/1369053524:user/test-keys

ro.build.flavor=

ro.build.characteristics=default

# end build properties

# begin mediatek build properties

ro.mediatek.version.release=ALPS.ICS2.MP.V1.20

ro.mediatek.platform=MT6575

ro.mediatek.chip_ver=S01

ro.mediatek.version.branch=ALPS.ICS2.MP

# end mediatek build properties

#

# system.prop for generic sdk

#

rild.libpath=/system/lib/mtk-ril.so

rild.libargs=-d /dev/ttyC0

# MTK, Infinity, 20090720 {

wifi.interface=wlan0

# MTK, Infinity, 20090720 }

# MTK, mtk03034, 20101210 {

ro.mediatek.wlan.wsc=1

# MTK, mtk03034 20101210}

# MTK, mtk03034, 20110318 {

ro.mediatek.wlan.p2p=1

# MTK, mtk03034 20110318}

# MTK, mtk03034, 20101213 {

mediatek.wlan.ctia=0

# MTK, mtk03034 20101213}

# MTK, TeChien {

ro.media.enc.hprof.file.format=3gp

ro.media.enc.hprof.codec.vid=m4v

ro.media.enc.hprof.vid.width=720

ro.media.enc.hprof.vid.height=480

ro.media.enc.hprof.vid.fps=30

ro.media.enc.hprof.vid.bps=3400000

ro.media.enc.hprof.codec.aud=amrnb

ro.media.enc.hprof.aud.bps=12200

ro.media.enc.hprof.aud.ch=1

ro.media.enc.hprof.aud.hz=8000

ro.media.enc.mprof.file.format=3gp

ro.media.enc.mprof.codec.vid=m4v

ro.media.enc.mprof.vid.width=352

ro.media.enc.mprof.vid.height=288

ro.media.enc.mprof.vid.fps=30

ro.media.enc.mprof.vid.bps=990000

ro.media.enc.mprof.codec.aud=amrnb

ro.media.enc.mprof.aud.bps=12200

ro.media.enc.mprof.aud.ch=1

ro.media.enc.mprof.aud.hz=8000

ro.media.enc.lprof.file.format=3gp

ro.media.enc.lprof.codec.vid=h263

ro.media.enc.lprof.vid.width=176

ro.media.enc.lprof.vid.height=144

ro.media.enc.lprof.vid.fps=30

ro.media.enc.lprof.vid.bps=384000

ro.media.enc.lprof.codec.aud=amrnb

ro.media.enc.lprof.aud.bps=12200

ro.media.enc.lprof.aud.ch=1

ro.media.enc.lprof.aud.hz=8000

# MTK, TeChien }

#

wifi.tethering.interface=ap0

#

ro.opengles.version=131072

wifi.direct.interface=p2p0

dalvik.vm.heapgrowthlimit=64m

dalvik.vm.heapsize=128m

# Encrypt phone function

ro.crypto.tmpfs_options=mode=0771,uid=1000,gid=1000

ro.crypto.fs_type=ext4

ro.crypto.fs_real_blkdev=/emmc@usrdata

ro.crypto.fs_mnt_point=/data

ro.crypto.fs_options=noauto_da_alloc

ro.crypto.fs_flags=0x00000406

# audio

ro.camera.sound.forced=0

ro.audio.silent=0

# USB Config Type

ro.sys.usb.storage.type=mtp,mass_storage

# USB MTP WHQL

ro.sys.usb.mtp.whql.enable=0

# Power off opt in IPO

sys.ipo.pwrdncap=2

ro.sys.usb.storage.type=mtp,mass_storage

#

# ADDITIONAL_BUILD_PROPERTIES

#

fmradio.driver.chip=3

ril.external.md=1

ro.sf.hwrotation=0

ril.current.share_modem=2

launcherplus.allappsgrid=2d

launcher2.allappsgrid=3d_20

curlockscreen=2

ro.mediatek.gemini_support=true

drm.service.enabled=true

fmradio.driver.enable=1

mediatek.wlan.chip=MT6628

mediatek.wlan.module.postfix=_mt6628

dalvik.vm.mtk-stack-trace-file=/data/anr/mtk_traces.txt

ro.config.notification_sound=OnTheHunt.ogg

ro.config.alarm_alert=Alarm_Classic.ogg

ro.config.ringtone=Backroad.ogg

net.bt.name=Android

dalvik.vm.stack-trace-file=/data/anr/traces.txt

hopefully someone has the same phone and could upload a stock firmware for me, im in dire need of help. thanks and god bless