All signatures are invalid

[luzemario]

Hello folks,

I am having difficulties with the file below:

https://drive.google.com/open?id=1vaggmf4bo2o8I9rCyJ-v-OMhdRhWLpDW

This is an image of a old LexusBOX F90 FTA receiver. All signatures are maked as invalid and I can't extract files:

results.txt

Can you check this file? this is a MIPS/MIPSEL linux image for a Broadcom SoC. Entropy analisys brings a great block, maybe meaning some type of packed rootfs.