Only advanced users running custom ROMs or repairing broken GMS installations should consider side-loading it. If you do, always verify cryptographic signatures and be prepared to factory reset if things go wrong.
SHA-256: a4f8c9e2d1b6f4a7c8e2d9f1b4c6a7e8f9d2c3b5a6e7f8c9d0e1f2a3b4c5d6e7 (Check APKMirror for the current hash; the above is illustrative.) google account manager 8.9 10 apk
adb install -r com.google.android.gsf.login_8.9.10.apk Note: This only works if the existing version is from the same signing key. Most stock ROMs block this. Only advanced users running custom ROMs or repairing