I was wondering if someone might be able to help me. A few days ago my SD card became corrupted, causing my phone - a Cricket-branded Alcatel OneTouch Idol 3 - to act all crazy. At first it wouldn't read the apps stored on the card, then a while later the phone kept on restarting, then after I'd get it started the launch screen would pop up every few seconds and interrupt whatever I was doing. So after work I removed the card and the phone was fine, which is a relief. I tested the card on two laptops - on the Windows 10 one it would freeze the file explorer; the Windows 7 one actually brings up options to fix it. Then just to be sure, I put an old 2 gb card I had on hand in the phone and it is still acting normally. Thank goodness I have double cloud backups of my photos, so there's nothing of value that's been totally lost. I went ahead and got a new SD card since they are pretty cheap. (And for whatever it's worth, the corrupt card is a 32 gb Samsung. A couple of months ago I bought it directly from Amazon - not third party - so I assume it's legit and not counterfeit; the packaging and card didn't have the telltale bogus details I've read about. The new one is a SanDisk bought directly from Amazon.)
Since I have Lollipop (specifically, 5.0.2), when I'd move an app to the SD card, there'd still be a significant chunk of data left in the internal storage that didn't carry over. Now that those apps are all gone, there's a lot of wasted space being taken up by their remainders. What I'm wondering now is how do I delete all of that phantom data? Or will that data simply be overwritten if I redownload the apps? (I redownloaded a couple and they automatically logged me in, etc.)
I guess I could do a factory reset, but setting up the phone again from scratch will be a pain and I'm hoping a workaround exists that will do the trick. Thanks.