Found in Settings > Developer Options .
This is the gold standard. Search for your specific device model (e.g., "Samsung Galaxy S3" or "Nexus 4") and look for the sub-forum. Look for threads titled "[ROM] CyanogenMod 12" or "[PATCHED] Stock Lollipop." 2. LineageOS (Legacy Builds) update android 44 4 to 50 download patched
Go to Wipe > Advanced Wipe and select Dalvik/ART Cache, System, Data, and Cache . Do not wipe your Internal Storage if that's where your ROM is saved. Found in Settings > Developer Options