Weird USB connection problem - any ideas?

Hello all. I've got a problem with my N4 in that when I connect it to a PC via USB, the PC does not recognize any connection at all. It's not even saying "unknown device", just nothing. I've tried connecting it to multiple PC's (win 7, Win 8, Win 10) and with multiple USB cables, but I don't get anything. The only time I get something at all is if I turn on USB debugging on the N4. In this case, the PC recognised that a device has been connected, but doesn't seem to know what it is as it can't find the correct drivers to install.

This used to work fine on my Win7 machine, so I'm not sure what's changed. Anyone got any ideas what I can try to fix it?

Thanks for any help.

Camera Issues after Root. Any ideas?

I'm having issues with my camera ever since I rooted.
I'm on Att Variant of GS5. I Used Towelroot to root. I'm running stock Touchwiz Rom/ 4.4.4 KK/ and OA1 Kernal. To achieve Root I had to flash to Kernal ND3 then Back to 0A1.

Ever since I've done this my camera app (stock Samsung camera) will take photos and mess them up while saving I'm guessing. The thumbnails for the photos show up in the bottom corner of the app that takes you to gallery but they will not be there. I took a total of maybe 10 photos of my friends vehicle they are trying to sell. It successfully save the first few, then you can see where on photo partially saved. Then the rest of the photos are not available.
Ill post a screenshot of my gallery where you can see this. This is not the first time this has happened. It happened directly after root and I cleared the app data and cache. That did work but obviolsy it was only a temporary fix. If anyone knows how I can solve this problem for good please help me out. Thanks in advanced


[Site Mods: If this thread is on the wrong area of the forum I apologize mods. I use mobile chrome and this site is not the easiest to navigate. I have the paid xda app but that's even worse as there is no Alphabetical Order to find areas to go to. ]

Rollback Feature Ideas

I have an idea for when you flash zips in recovery. When you flash a zip the recovery automatically backs up the files/folders that are changed. That way if something goes wrong you don't have to backup/restore the whole system, just what was changed.
A similar idea is when something goes wrong where you have to clear your data (not system data). Instead of wiping the whole lot, why not have an option to wipe just the data that is the most common causes for bootloops. That way you keep files that aren't a problem (photos and files etc.) and all your logins.
Or is this not possible and that's why it isn't done that way?