Sprint LG G Stylo worse than bricked

I was messing around with the 3c Toolbox and, like an idiot, I skipped a backup step before trying to unlock the SD card (or something, I don't remember and there's no way to check [read on]).

I lost access to my SD card and couldn't find the file that I was supposed to rename to regain access (which is why I think I skipped a step), so I thought that maybe I could factory reset my phone and it would fix the problem.

Now not only can I not access ANY SD card I put in my phone, it also doesn't recognize the "internal SD card", the Google Play Store won't open, and it keeps saying there's not enough memory or "no SD card" to download any APKs from the internet.

Am I going to have to send in my phone and get it replaced? Or is there a way to fix this problem without being able to download anything onto my phone or SD card directly or over USB?

Replaced the battery, cell signal got much worse...

Hey fellow Nexus 5 users,
So I ordered my nexus 5 nearly two years ago now, and I wanted to replace the battery to regain that first day battery life,
and since the performance is still top notch maybe keep the phone another year.
Anyway I replaced it, and now the cell signal is worse, I get Edge where I used to get H+ or LTE, sometimes the LTE signal is displayed in the status bar, but no data is getting through. but I can't explain it... and the weird thing is at home I get full working 4G. it really depends on the location.
I think I replaced it correctly, without damaging any internals, the only thing I noticed that I broke is (I don't know what it's called) a little thing that's on the back of the phone, that keep the back well attached to the phone. (see picture)

and I broke one that's on the top, where there are little pins that make contact with the phone. But even with one that's broken, the back is still very well attached to the phone.
My question is, are the contacts on the back used at all to improve cell reception ? What else could cause this issue :rolleyes:
by the way, wifi is working fine, phone calls as wells...
thanks for reading and the help

Battery life worse after root.

I'm running simplerom on my n910f note 4. I've noticed lately that my screen on time is considerably worse than before.
I'm reaching maybe 4 hours now sometimes less, where as before I used to reach 5 and a half, pushing 6 hours.

My phone deep sleeps well with greenify and everything but I'm just wondering why my phone is performing so badly now?