Can't reset my phone.. tried all possible ways.

[Cindy9827]

My phone is a 16G Samsung Galaxy and I think it's 4.2.1. I had almost 2 thousand pictures and the last time I checked I had around 4GB left. One time I went travelling and took the SIM card out. Then it became a little laggy and one day I think the system crashed and kept restarting. I couldn't back-up my photos on my computer because everytime I connect and try to install the driver, it says it is unplugged even though it is plugged and turned on. I have problems accessing apps and deleting photos (and viewing them too) etc. everytime it says Android.proccess.(something i forgot) stopped working. and somethings like that. and soon it would restart. Some people said I should reset it to default. I tried the back-up and reset way but it wouldn't restart therefore nothing is deleted. So i tried turning it off and go to boot menu to restart, but after it restarted, nothing was deleted....? What do I do now and what's the problem with my phone?

 

[Aquila]

Are you trying to wipe the device (ie. factory reset) or to get in and have it not crash?

Do you know how to use adb and fastboot commands?