<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body bgcolor="#FFFFFF" text="#000000"> Please excuse me if this is an inappropriate place to post this, I searched around for a MM User List and this was all I found. I'm having trouble sending and receiving SMS messages. I have done a number of searches for this error message and it has turned up only one reference that was no help. I have tried uninstalling (complete), deleting all associated files (data and lib), and then re-installing, no joy... :-( The error message I am getting every time I try to SEND is, "(GDBus.Error:org.freedesktop.libmbim.Error.Status.MemoryFull: Couldn't send SMS part: MemoryFull)" and I am unable to receive any text either... What do I need to do to get my SMS working again ? Modem is a Sierra Wireless 340U with PureTalkUSA and it worked fine for 8 months, until about a month ago... I am using modem-manager-gui v0.0.19.1 and ModemManager v0.0.19.1 under Linux Mint 19.3 Cinnamon v4.4.8, muffin/LightDM Kernel v5.3.0-62-generic on an Intel© Core™ i3-2350M CPU @ 2.30GHz × 2 Laptop with 7.7 GB RAM and 462 GB available on the SSD... advTHANKSance </body> </html>