[Android Q&A, Help & Troubleshooting] tzifman:
I also found that build.prop is:

# begin build properties

# autogenerated by buildinfo.sh

ro.build.id=KOT49H

ro.build.display.id=ALPS.KK1.MP1.V2.10

ro.build.version.incremental=vEN4124

ro.custom.build.version=vEN4124

ro.build.version.sdk=19

ro.build.version.codename=REL

ro.build.version.release=4.4.2

ro.build.date=2019年 03月 11日 星期一 11:18:10 CST

ro.build.date.utc=1552274290

ro.build.type=user

ro.build.user=buildserver

ro.build.host=buildserver8

ro.build.tags=release-keys

ro.product.model=zh960

ro.product.brand=alps

ro.product.name=zh960

ro.product.device=zh960

ro.product.board=zh960

ro.product.cpu.abi=armeabi-v7a

ro.product.cpu.abi2=armeabi

ro.product.manufacturer=alps

ro.product.locale.language=en

ro.product.locale.region=US

ro.wifi.channels=

ro.board.platform=

# ro.build.product is obsolete; use ro.product.device

ro.build.product=zh960

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

ro.build.description=zh960-user 4.4.2 KOT49H vEN4124 release-keys

ro.build.fingerprint=alps/zh960/zh960:4.4.2/KOT49H/1552274168:user/release-keys

ro.build.flavor=

ro.build.characteristics=tablet

# end build properties

# begin mediatek build properties

ro.mediatek.version.release=ALPS.KK1.MP1.V2.10

ro.mediatek.platform=MT6582

ro.mediatek.chip_ver=S01

ro.mediatek.version.branch=KK1.MP1

ro.mediatek.version.sdk=2

# end mediatek build properties

#

# from out_user/target/product/zh960/obj/CUSTGEN/config/system.prop

#

#

# 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}

ro.sf.lcd_density=210

#

wifi.tethering.interface=ap0

#

ro.opengles.version=131072

wifi.direct.interface=p2p0

dalvik.vm.heapgrowthlimit=128m

dalvik.vm.heapsize=256m

# USB MTP WHQL

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

# Power off opt in IPO

sys.ipo.pwrdncap=2

# Switching Menu of Mass storage and MTP

ro.sys.usb.storage.type=mtp

# USB BICR function

ro.sys.usb.bicr=no

# USB Charge only function

ro.sys.usb.charging.only=yes

# audio

ro.camera.sound.forced=0

ro.audio.silent=0

ro.zygote.preload.enable=0

#

# switch bluetooth stack solution

#

ro.btstack=blueangel

ro.camera.project=zh960

#

# ADDITIONAL_BUILD_PROPERTIES

#

persist.gemini.sim_num=2

ro.gemini.smart_sim_switch=false

ro.gemini.smart_3g_switch=2

ril.specific.sm_cause=0

bgw.current3gband=0

ril.external.md=0

ro.btstack=blueangel

ro.sf.hwrotation=270

ril.current.share_modem=2

launcherplus.allappsgrid=2d

curlockscreen=1

ro.mediatek.gemini_support=true

ro.operator.optr=OP08

ro.operator.spec=SPEC0200

ro.operator.seg=SEGDEFAULT

persist.radio.fd.counter=15

persist.radio.fd.off.counter=5

persist.radio.fd.r8.counter=15

persist.radio.fd.off.r8.counter=5

drm.service.enabled=true

fmradio.driver.enable=1

ril.first.md=1

ril.flightmode.poweroffMD=1

ril.telephony.mode=0

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

persist.mtk.anr.mechanism=1

mediatek.wlan.chip=CONSYS_MT6582

mediatek.wlan.module.postfix=_consys_mt6582

ril.radiooff.poweroffMD=0

ro.build.customer=1

ro.config.notification_sound=Proxima.ogg

ro.config.alarm_alert=Alarm_Classic.ogg

ro.config.ringtone=Backroad.ogg

persist.mtk.wcn.combo.chipid=-1

ter.service.enable=0

mediatek.extmd.usbport=0

ro.lte.dc.support=0

ril.active.md=0

ril.read.imsi=1

ro.setupwizard.mode=OPTIONAL

ro.com.google.gmsversion=4.4_r5

persist.sys.dalvik.vm.lib=libdvm.so

net.bt.name=Android

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

Does it helps for find a compatible rom to install?