Hello, I need any firmware that can go on this gamepad having on baord : SKG-N027A02-MAIN 2015-03-06 I press LOWFORMAT on android tool. WHAT can be done to revive it?

Hello all, Time to post my first topic on this forum. I have brought a new ruggedized tablet for my kid. I've managed to root this thing and backuped all the partitions with the Rockchiptool but a cant get TWRP to work. :-( I've been thying for weeks now and flashed many img's found on internet but no luck so far. I also tried the TWRP installer from Oma in this site but it gave me a black screen when booting in to recovery. I'm a bit out of options here... I dont know if i can place a link here but the main specs are: BRAND/MODEL: APAD M775E5 CPU: RK3126 Quad Core CPU OS: Android 5.1, 8GB Storage, HD 1024x600 Display. Can someone please help me to get a working TRWP for this tablet so i can install xposed? It's one of the best rugged kids tablets i could find but the on screen nav bar buttons are a bit small for kids. I tried installing Xposed without TRWP but in a terminal window left the tablet in bootloop. If you need more information please let me know.

any one know what has gone wrong here