This guide is specifically for the Samsung Galaxy J2 Core (SM-J260 variants).
Android's default security encryption will trigger a boot loop if you restart now. Follow these steps to clear it: In the TWRP main menu, tap , then select Advanced Wipe . Check Cache and Dalvik / ART Cache , then swipe to wipe. Go back to the Wipe menu and tap Format Data . Type yes and confirm. This will erase internal storage. twrp samsung j2 core
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Create a flawless backup of your entire system, applications, and data. Check Cache and Dalvik / ART Cache , then swipe to wipe
Fastboot (rare on Samsung): Most Samsung phones do not expose fastboot; J2 Core typically uses Odin/Download Mode instead.
You need a Windows computer and a reliable USB cable.
One of the main reasons users seek out TWRP is to root their device. Here is a quick guide using Magisk: