FWIW, MRPI should, ironically, be the *only* thing working (in terms of being able to install custom packages) on a salvaged JB on FW >= 5.15.1.1
The post-MRPI blank screen softlock is a known (and documented) issue on newer firmwares, too, so it's not (necessarily) an indication of failure. Trust what MRPI displayed *before* it attempted to restart the UI.
Last edited by NiLuJe; 03-30-2023 at 12:39 PM.
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