I attempted to solder a 1.1 for a TSOP mod. The good news is the Xbox still works. The bad news is the bios is not writable. Is this easily remedied? :
128 RAM Upgraded Mod TSOP Motherboard Original XBOX OG v1.4 Power Supply 128MB - DaufuskieIsland.com
Xbox Mod! Tutorials: Flash TSOP w/ Matrix
wikimd/xbox-softmod.md at master · gotbletu/wikimd · GitHub
Microsoft] Xbox 1 – Flash TSOP – DragonCity
How To Upgrade HDD in Original Xbox ( TSOP / MOD CHIPPED ) - YouTube