Before downloading, you should verify your phone's architecture. Most devices released after 2015 use 64-bit processors. You can check this by: Downloading a system info app like CPU-Z or AnTuTu.
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If you manually download an APK, you will often see variants labeled: 64 bit facebook apk
Find a Trusted Source: Use reputable sites like APKMirror or APKPure. Search for "Facebook" and look for the variant labeled "arm64-v8a." 64 bit facebook apk