Fix the 9.90 version error

Older GEN Custom Firmware like the 5.50 GEN-D3 had a protection to avoid updating to Official Firmware and lose Custom Firmare. This protection is giving you the "system version is 9.90, no need to update".

To fix this error, follow one of the two guides below:

Fix the 9.90 version error with Version.txt Switch & Repair

Fix the 9.90 version error with Version.txt Switch & Repair Guide

Fix the 9.90 version error with DC-ARk and Ark new cIPL

Old Custom Firmware Update Guide (with Ark new cIPL and DC-ARK)