Hacking R4 SDHC RTS Lite don't boot on my 3DS

[tiencoi1988]

I bought 2nd o3ds hacked. System ver 11.5.0-38U and have lasted ver Luma9.1.
My R4 SDHC RTS Lite work fine with another my Dsi, but when boot on o3ds only have blackscreen.
Detail in my video. Please help me, i don't know how to fix it
p/S: Sorry my bad English
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Update: Link for solution
https://gbatemp.net/threads/broken-twl_firm-wont-load-ds-cartridges.469656/

 

[tiencoi1988]

My flashcart work fine on another Dsi, so i think problem on my o3ds

 

[AmaarkaS]

i got the same problem here

 

[TurdPooCharger]

R4 Stopped Working After B9S