Review on Global Unlocked Samsung Galaxy Tab A7 10.4" Tablet with WiFi + Cellular and 4G LTE, 32GB Storage, 3GB RAM, Compatible with T-Mobile, AT&T, and Metro - Includes 64GB MicroSD Card - International Model SM-T505 by Guan Yin ᠌

I constantly have to change the brightness manually because the auto-adjust feature is horrible. Rebooting the gadget helps when it starts to significantly slow down after some time. When I load money onto a SIM card, there appears to be a conflict with the telecom provider. Since I use Tele 2, a Tele 2 banner appears above all other windows, causing the tablet to hang. The tablet needs to be entirely restarted because I can scarcely turn off this banner and there won't be any after work. The tablet started to entirely go off on its own about four months ago. The battery has enough power. The tablet won't switch on in any way; neither the buttons nor the cable function. There is no response when the charging function is turned on. Every time I try to switch it on, it loads and continues to function as if nothing had happened after a few hours. The only thing that occasionally shuts off—5 times during this time—I'm unable to pinpoint the systems or causes. My tablet is primarily used for work.