Not a Valid Email

[Redheadd2]

I am so sick of periodically having this issue with my Fitbit over the years, with no rhyme or reason and I can never get any help. It logs me out of the app on its own and then I can't log back in due to the message of "not a valid email". It IS a valid email and I can login just fine on the Fitbit site but not the app. This does me absolutely no good if I can't log in the app. I have done EVERYTHING so please don't even suggest ANY of the following as I've done them all at least 10 times. Clear cache, force stop, restart, uninstall, reinstall, turn off wifi and try to log on, disconnect Bluetooth, reconnect Bluetooth, completely forget wifi and log on, restart Fitbit device, etc. It won't allow me to reset my password for the same reason, says it's not a valid email. I'm honestly about done with Fitbit since I see many have this issue and never really receive any answers or help. "Uninstall and reinstall" is the constant response. How about fixing the issue? I am trying to be healthier and keep track of things and this is beyond discouraging and frustrating. 

[SunsetRunner]

@Redheadd2 I'm willing to think outside of the box and try to help because, it does seem you have tried everything so I don't want to run you through the same troubleshooting loops. The login issue seems to be more of issue with the app running on your phone's OS rather than the device itself. Do you have a tablet or spare smartphone you could use to help isolate the issue? 

On the smartphone you using: what is the brand/model and operating system version number?

[Redheadd2]

Thank you.  I thought as far outside of the box as I could and I just didn't want to get put off with the same answers I see everyone else getting that I have tried, honestly, at least 10 times. 😑  Unfortunately, I do not have another smartphone or tablet.  I have a Google Pixel 4 (5G) and the operating system is Android 12. While checking this I saw there was a security update for the OS so I installed that, hoping it would fix the issue but, no luck.  

[SunsetRunner · Accepted solution]

@Redheadd2  So - I realize you have uninstalled the app from your android device and reinstalled it. When you did this when did you delete the storage & cache during this procedure?  Just deleting the app will not always remove everything; so when you reinstall the app it will connect to remnants of the previous installations. So if you do perform an app reinstall make sure to force close the app and have the fitbit deleted from the bluetooth settings of your Pixel phone. Then under the settings of the pixel phone go to:

• apps > all apps > scroll to fitbit > Storage & cache > clear storage and clear cache (if still an option) > go back one menu level > now uninstall fitbit. 
• restart your pixel phone (restarting prior to re-installing the app helps clear remnants)
• make sure everything on the phone is up-to-date (sounds like you have done this)
• install fitbit app *but do not run it* yet
• restart your pixel phone... again 
• upon reboot start the fitbit app - fingers crossed this may work

If you have done the reinstall exactly in the order above then there probably isn't a need to do it again. But it couldn't as the alternative is a clean OS install. I know... frustrating and similar probably what you have done before, but follow me on this a bit:  I use both android devices and iPhones.  Not specific to your situation but similar on my pixel I had an issue with an app repeatedly crashing and logging me out.  Extremely, frustrating, but it was when I transitioned from android 11 to 12. I never spent the time to specifically identify the culprit, but from experience whenever I significant update occurs it can cause apps to behave erratically.

The why: sometimes in OS revisions the manner in which data is managed, located and accessed for apps changes.  So I now just make a habit to a clean install on my devices for each significant OS change (e.g. iOS 14 > 15, androidOS to 11 > 12, etc).  When doing this I only restore information that is sync'd in the cloud, in your case google sync.  All apps I install from scratch so the build directories in proper locations. One additional, comment I usually wait a couple weeks after the release of a significant OS change to do this because if the apps behave fine then I may forgo the OS clean install, but waiting also to allows the app developers to make the proper changes to their apps for the new OS. Unfortunately, androidOS development lags a bit in this area.

Feel free to challenge anything I'm suggesting as more info make come to light with problem you experiencing.  

[Redheadd2]

You are an absolute genius!  Doing it exactly the way you had lined out it finally worked!  I was doing the first part (installing, clearing the cache and force stopping) but wasn't doing the restarting in between those steps.  😊  Thank you SO much!  

[SunsetRunner]

@Redheadd2 Yay! 😊