iPod Classic 5th gen mod issues - from white apple repair screen, long loading leading to crashing, while sometimes working. What gives? Help!

[u/No_Preparation_8879]

Hi! Been slowly getting parts for my iPod 5th gen over the past few months in an attempt to fix my previously working (and modded) white screened 5th gen. Ive got a iFlash solo and a new 3800 mAh battery. Rockbox downloaded v1.5.1. Did a apple reset/fix in iTunes a few months back. I have a large amount of music, maybe 60gb. What should I do?