UDPIH not working on lower firmware?

[aka145]

HI all. I have two Wii Us with 160-0103 and 160-0101 problems. One of them is on update 5.5.5, and UDPIH loads up. The other one is on 5.3.2 and UDPIH doesn't work on it. I read somewhere that the firmware might be causing issue? If not, what other options do I have? I have basic soldering skills if that helps.

 

[SDIO]

UDPIH needs a 5.5.x firmware. If the 5.3.2 console doesn't get far enough to use a Browser exploit, you need to either use defuse or need to port UDPIH yourself to 5.3

 

[aka145]

Thank you for responding! Unfortunately it doesn't boot up far enough. Is there a tutorial for using defuse to unbrick? I saw one by lazr1026 on his github page, but am confused on which steps I should do. (Should I restore/dump MLC/SLC) Another guide was one from you called Upgrading/Rebuilding Wii U Internal Memory, but would it work on an older version?
I also saw the mlc2sd mod, could you help me understand if I need to do that and how it's connected to defuse? Thank you very much.

 

[GAMERTAGZ]

UDPIH needs a 5.5.x firmware. If the 5.3.2 console doesn't get far enough to use a Browser exploit, you need to either use defuse or need to port UDPIH yourself to 5.

i have de_fused wii u how i can update my console to the last firmware 5.5.5 ?