When I open the Samsung galaxy tab it keeps downloading app systems which some of them are inappropriate and I can't delete them and also it keeps making shortcuts of it.Also there is a problem that prevents me from doing something.Something called GPS speed keeps spamming my screen:"Unfortunately,GPS speed has stopped. I need help!
You can factory reset your device. Factory reset restores your device to the state it was in when you purchased your device, i.e. it'll wipe all your apps & data. For instructions on how to factory reset your device, follow this link: https://www.technipages.com/galaxy-tab-4-hard-reset