What USB sticks are recognised for offline updates

I have repeatedly formatted the HDD... and then rebooted the console with the USB stick in (which has the update unzipped on it) - it now won't recognise this usb stick & update.... I'm pulling my hair out

Hi Allebas,

I have tried to do a offline update by downloading the update files onto USB and the console would not recognise it or show any indication I could update offline

as mentioned above I would try a offline update using USB stick

Your usb stick must be configured to FAT32 for the 360 to recognise it.

Alright, my Xbox is working much better in the short term.

No amount of factory reset, save deletion, profile deletion, etc. would stop my constant flow of save issues and E102/103/105 errors. I couldn’t perform an offline update as the offline update box was always greyed out, no matter how many reformatted usb
sticks I tried.

I went to the local Microsoft Store and they had what they referred to as a unique offline update on a marked USB stick. My Xbox wouldn’t read it, so we did a number of factory resets and then tried what was apparently a different flavor of this offline
update stick. That one was read fine and my Xbox has worked fine tonight.

Here’s hoping it stays that way. Thanks for all the help, folks!