On older Android devices (Marshmallow 6.0 and below), this version is a critical component for bypassing the Factory Reset Protection lock when a user is locked out of their account.
Here is the reality:
If you have tried all the links above (time sync, WebView, network switch, data clear) and still get 601, the only solution is a (which generates a new Android ID) or contacting your device manufacturer. android google account manager 601 link
It worked. His college email synced instantly. On older Android devices (Marshmallow 6
Many websites offer a direct or a specific APK file named GoogleAccountManager_601_signed.apk . Be extremely cautious. data clear) and still get 601
If you have spent any time in Android forums, rooting communities, or troubleshooting login failures on a custom ROM, you have likely stumbled upon the cryptic phrase: