boratorio, solo cambiando eso no sirve, yo lo probe, hay que cambiar varios parametros y yo cambia alguno mas pa evitar futuros errores os pongo como es el mio
# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=HTJ85B
ro.build.version.incremental=XWKK4
ro.build.version.sdk=15
ro.build.version.codename=REL
ro.build.version.release=3.2
ro.build.date=Thu Mar 1 20:24:08 CST 2012
ro.build.date.utc=1320991161
ro.build.type=user
ro.build.user=root
ro.build.host=DELL89
ro.build.tags=test-keys
ro.product.model=GT-P7500
ro.product.brand=samsung
ro.product.name=GT-P7500
ro.product.device=GT-P7500
ro.product.board=GT-P7500
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=samsung
ro.product.locale.language=en
ro.product.locale.region=GB
ro.wifi.channels=
ro.board.platform=e
roid
# ro.build.product is obsolete; use ro.product.device
ro.build.product=GT-P7500
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=GT-P7500-user 3.2 HTJ85B XWKK4 release-keys
ro.build.fingerprint=samsung/GT-P7500/GT-P7500:3.2/HTJ85B/XWKK4:user/release-keys
ro.build.characteristics=tablet
# end build properties
#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.com.android.dateformat=MM-dd-yyyy
ro.config.ringtone=Ring_Synth_04.ogg
ro.config.notification_sound=pixiedust.ogg
ro.config.alarm_alert=Alarm_Classic.ogg
dalvik.vm.heapsize=48m
ro.kernel.android.checkjni=0
persist.sys.timezone=Asia/Shanghai
wifi.interface=wlan0
wifi.supplicant_scan_interval=50
debug.egl.hw=1
ro.display.switch=1
ro.opengles.version=131072
persist.sys.strictmode.visual=0
persist.sys.strictmode.disable=1
persist.sys.usb.config=mass_storage,adb
ro.product.firmware=0.8
hwui.render_dirty_regions=false
ro.sys.check.language=true
persist.sys.language=en
persist.sys.country=US
ro.sf.lcd_density=120
ro.build.display.id=01F2-D1-H1-H01-1703.20120301
ro.config.3ginformation.path=/system/etc/3ginfo.gz
ro.setupwizard.mode=DISABLED
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
net.tcp.buffersize.default=4096,87380,256960,4096, 16384,256960
net.tcp.buffersize.wifi=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.umts=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.gprs=4096,87380,256960,4096,163 84,256960
net.tcp.buffersize.edge=4096,87380,256960,4096,163 84,256960
Esto ultimo de internet yo no noto nada, asi segun esta slo funciona bien el market y ya.
