Poweredge R220 Upgrade path

Hello everyone,

I recently acquired a Poweredge R220 and need some guidance on updating it. Im trying my best to upgrade the  RAM from 8GB to 32GB. Silly me for thinking it would be a simple swap. Have confirmed the RAM modules I've got are compatible. Currently the BIOS is v1.4 which I believe needs to be v1.11 in order for that to work. So far my understanding is that in order to do that I need iDRAC and LCC to be upgraded. Try as I might I cannot seem to get any success. Every time I attempt to upload any version above the current one it says unable to validate certificate. I have tried extracting the firmimg.d7 and uploading that which does work and allows the update to proceed but once completed I can no longer access the iDRAC web ui. I can then go into the LCC directly and force it to roll the update back and regain access to the web ui. I have been searching online most of the day and not having much luck so I thought I would see if someone could give some feedback as I feel like I've hit a wall.