Thanks Zach, this is what our Trimble representative sent us and it worked:
I confirmed with Trimble, the best way to go about clearing up space on the TDC650 isn't by clearing the cache... but you can accomplish your goal in a couple of ways:
option 1) Within a TF project you could click on "remove forms"
To remove forms from TerraFlex once they have been uploaded (synchronized) to Trimble Connect , tap 
and tap Remove Forms. In the Remove Forms dialog, tap Yes.
*This is a bit manual however and you would need to go into each project within TF and click on remove forms.
option 2) When you're logged into Trimble Connect, within a "Map workspace", click on the menu button in the top left and it should look similar to below. Notice there are 2 categories, "Active and Archived." Click on the 3 dots next to a map workspace that you no longer need on the TDC650 and you can Archive it. Then the next time TF syncs to Trimble Connect, this project will be removed from the device and all related forms and pics along with it. In my opinion this is the most streamlined way to free up space on your device. (You can always end up un-archiving if you want it to sync to the TDC650 again)
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Wayne Randall
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Original Message:
Sent: 11-18-2024 16:48
From: Zach Edwards
Subject: TDC 650 Internal Storage
It may be referring to internal RAM. What programs do you have open while in the field? If using TerraFlex, I would recommend ONLY having that APP open. If it is a storage space issue, i'd be shocked, as the 650 has a ton of storage space and I have yet to see someone fill it (even with taking hundreds of pictures per week). You may try to toggle the "Use System Camera App" if it's not already checked on. If none of these suggestions help, I would work with your local dealer to put in a formal Trimble Support ticket.
"Enable the Use System Camera App check box if you prefer to use the camera app provided with your device operating system rather than the camera app provided with the TerraFlex software. Using the system app allows you to zoom and change the photo resolution using the device operating system settings."
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Zach Edwards
Original Message:
Sent: 11-11-2024 07:40
From: Wayne Randall
Subject: TDC 650 Internal Storage
Does anyone have any suggestions for the error we are getting when we try to take an image after collecting a point on Terraflex. It is saying "Your internal Memory is running out of space. Change the quality setting or delete some images or other files. We cleared cache and are still seeing this message pop up.
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Wayne Randall
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