Also it very well could be something as easy as the resolution. First try to boot a bootable cd/dvd/flash drive and see what happens, if it boots and the screen works, reboot and attempt to start in safe mode. As soon as the computer comes on start tapping the F8 key (7 or 8 times) and see if it gives you a screen with selection on how to start. Cursor up (or down) to the start in safe mode (without networking) and hit enter. When computer boots go to display settings and select 1024x768, apply and reboot.

Have you tried Amazon? https://www.amazon.com/usb-sd-card-reader/s?ie=UTF8&page=1&rh=i%3Aaps%2Ck%3...

Maybe this will help: Upgrade/Update Sony Ericsson Vivaz Pro to 7.0 Nougat http://upgrade-nougat.tech/2016/11/sony-ericsson-vivaz-pro-3075.html or How To Upgrade/Update Sony Ericsson Vivaz To Android 7.0 Nougat http://rom-nougat.org/download-rom-sony-ericsson-vivaz

DESCRIPTION: If the BIOS administrator password is not set, and dell Laptop ProtectTools security is enabled in Security Manager, then you may not be able to enter the Computer Setup utility at startup as a BIOS administrator. You will only be allowed to enter the setup as a ProtectTools user with limited access. SCOPE: The specific notebook PCs affected by this issue are listed in the Hardware Platforms Affected section at the bottom of this advisory. RESOLUTION: To resolve this issue, create a BIOS administrator password and delete previous ProtectTools user logs by following this procedure: 1. Download and install the latest SSM utility (dell Laptop System Software ManagerVERSION: 2.10 Rev.A SP42536 2. Navigate to c:\Program Files\dell Packard\SSM . 3. Access biosconfigutility.exe to reset the BIOS administrator password. a. From a command prompt, navigate to the SSM folder. b. Type biosconfigutility.exe to start the utility. A list of commands displays. c. Type /newsetuppassword:"password" to create a...

I find that using IOBIT's Advance System Care (Free version http://www.iobit.com/en/index.php ) fixes the problem and helps keep it clean, as well as it has a very great device driver updater, un-installer and, malware protection too. If you decide to buy it, it's currently on sale, I use the Pro-Version.

Have you tried doing a full factory reset yet?