Help - Where to find this specific Firmware A33 ??? - Android Q&A, Help & Troubleshooting

Hi, my Chinese tablet is bricked and I can't find its firmware.
I've already scanned the entire internet and I can't find the firmware. The tablet data is:
- MODEL : Kin7
- MANUFACTURER : Nage
- VERSION : 4.4.2
- PRODUCT NAME : astar_mq88HD
- DISPLAY ID : astar_mq88HD-eng 4.4.2 KVT49L 20180130 test-keys
- BOARD : exdroid
- PLATFORM : polaris
- BUILD ID : KVT49L
- BUILD VERSION : 20180130
- PDA : 20180130
- UDISK LABEL : Polaris
- SERIAL NO. : 88101f7866d700000000
- IMEI : NULL
- TYPE : GSM
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
I tried to install more than 40 different roms and none of them work. Only one rom works, and even then when I install it the touchscreen doesn't work.
The rom is:
FinePower N1_R01_06.26.2018_V1.3.img
and also:
FinePower_N1_R01_V1.2_13.04.2018.img
The programs used for installation: "phoenixsuit" and "phoenixcard"
Can anyone give me a hand? where do i find this rom??

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thanks