Generic Tablet - Android Q&A, Help & Troubleshooting

Hello and sorry for my bad english,
before some days i bought this tablet: https://www.wish.com/product/5d20f201d537560f274064ff
It was ok, but i wanted some more speed. So i rooted with KingoRoot and then i installed Androoster and BusyBox. I changed some kernel settings and then restart tablet.
Tablet, show android logo and reboots all time.
i tried recovery (wipe cache, wipe to factory settings) but nothing happens.
I cant find original rom so i dont know what to do.
Any idea?
Thanks in advance

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I find out that uses: alps. kk1 .mp1 .v2. 10 android version

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# ro.build.product is obsolete; use ro.product.device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