[Thinkpad Tablet General] McMiller:
Nice to read this. Ty for your feedback.

With root it should be possible to change this things at the build.prop

Can you please test if you can eddit the build.prop at /system and save the changes.

Maybe my original build.prop form my Yoga Tablet 2-1050L could help:

# begin build properties
# autogenerated by buildinfo.sh
ro.build.id=KOT49H
ro.build.display.id=KOT49H.YT2-1050L_USR_S000066_1410301706_WW21_ROW dev-keys
ro.build.version.incremental=YT2-1050L_USR_S000066_1410301706_WW21_ROW
ro.build.version.sdk=19
ro.build.version.codename=REL
ro.build.version.release=4.4.2
ro.build.date=Thu Oct 30 17:19:26 CST 2014
ro.build.date.utc=1414660766
ro.build.type=user
ro.build.user=buildslave
ro.build.host=bjws89
ro.build.tags=release-keys
ro.product.ota.model=
ro.product.model=YOGA Tablet 2-1050L
ro.product.brand=Lenovo
ro.product.name=YT2_10_row_lte
ro.product.device=YT2
ro.product.board=baylake
ro.product.cpu.abi=x86
ro.product.manufacturer=LENOVO
ro.wifi.channels=
ro.board.platform=baytrail
# ro.build.product is obsolete; use ro.product.device
ro.build.product=YT2
# Do not try to parse ro.build.description or .fingerprint
ro.build.description=YT2_10_row_lte-user 4.4.2 KOT49H YT2-1050L_USR_S000066_1410301706_WW21_ROW release-keys
ro.build.fingerprint=Lenovo/YT2_10_row_lte/YT2:4.4.2/KOT49H/YT2-1050L_USR_S000066_141030:user/release-keys
ro.build.characteristics=sdcard,tablet
ro.lenovo.adb=apkctl,speedup
ro.lenovo.series=YOGA Tablet 2
# end build properties

#
# ADDITIONAL_BUILD_PROPERTIES
#
ro.streaming.video.drs=true
ro.disablelonglongpress=true
keyguard.no_require_sim=true
ro.com.android.dataroaming=true
ro.com.android.dateformat=MM-dd-yyyy
ro.carrier=unknown
sys.lenovo.romui.version.sdk=2
ro.config.ringtone=Fantastic_Clang.ogg
ro.config.notification_sound=Notice.ogg
ro.config.alarm_alert=New_Morning.ogg
dalvik.vm.heapstartsize=8m
dalvik.vm.heapgrowthlimit=192m
dalvik.vm.heapsize=512m
dalvik.vm.heaptargetutilization=0.75
dalvik.vm.heapminfree=2m
dalvik.vm.heapmaxfree=8m
dalvik.jit.code_cache_size=1048576
ro.hwui.texture_cache_size=64.0f
ro.hwui.text_large_cache_width=2048
ro.hwui.text_large_cache_height=1024
ro.hwui.layer_cache_size=36.0f
ro.hwui.gradient_cache_size=0.8f
ro.hwui.r_buffer_cache_size=6.0f
ro.hwui.path_cache_size=24.0f
ro.hwui.shape_cache_size=3.0f
ro.hwui.drop_shadow_cache_size=5.0f
ro.hwui.fbo_cache_size=16
ro.hwui.texture_cache_flush_rate=0.6f
ro.hwui.text_small_cache_width=1024
ro.hwui.text_small_cache_height=512
drm.service.enabled=true
ro.opengles.version=196608
ro.blankphone_id=1
persist.tel.lteOnGsmDevice=true
ro.telephony.default_network=9
persist.tel.hot_swap.support=true
ro.spid.gps.pmm=disabled
ro.spid.gps.tty=ttyMFD1
dalvik.vm.extra-opts=-XX:mainThreadStackSize=32K
ro.sf.lcd_density=240
ro.lenovo.operator=open
ro.lenovo.region=row
ro.lenovo.device=tablet
ro.lenovo.sim=single
ro.lenovo.tablet=3gdata
ro.lenovo.platform=intel
ro.lenovo.signalbars=four
ro.lenovo.bqb=pass
ro.lenovo.cta=false
ro.lenovo.videocall=false
persist.sys.timezone=Asia/Shanghai
persist.sys.language=zh
persist.sys.country=CN
ro.product.locale.language=zh
ro.product.locale.region=CN
ro.com.google.clientidbase=android-lenovo
persist.backgrounddata.enable=false
ro.lenovo.wificert=no
ro.lenovo.childmode=true
ro.setupwizard.mode=OPTIONAL
ro.com.google.gmsversion=4.4_r5
persist.sys.dalvik.vm.lib=libdvm.so
ro.ril.status.polling.enable=0
ro.product.cpu.abi2=armeabi-v7a
ro.config.personality=compat_layout
rs.gpu.renderscript=1
rs.gpu.filterscript=1
rs.gpu.rsIntrinsic=1
net.bt.name=Android
dalvik.vm.stack-trace-file=/data/anr/traces.txt
ro.intel.corp.email=1