Go to Settings > Connections > SIM Manager . Turn your SIM off and then back on to refresh the network connection. 2. Troubleshoot Failed Text/MMS Downloads
If you cannot download attachments or receive "Message not downloaded" alerts: skachat fail com android phone
Turn off your phone, then hold the Volume Down + Power buttons to enter Recovery Mode. Select Wipe Cache Partition and reboot. Go to Settings > Connections > SIM Manager