Calls and messages that fail on the Galaxy S22+ are usually settings or the SIM. Check Airplane mode and Do Not Disturb, and that the right SIM is set for calls and messages in Settings, Connections, SIM manager, since the S22+ takes two SIMs, a physical card and an eSIM. Check Wi-Fi calling in the Phone app's settings, because a call that fails at home may be using it.
The checks in more detail
For messages, open Samsung Messages or Google Messages and check that RCS chat is connected and the default SMS app is the one you expect, and clear the app's cache. One owner of the S22 series found that an old LTE SIM was the cause of delayed alerts and failed messages, solved with a new SIM from the carrier. A restart re-registers the phone on the network, and a network reset clears stored settings. If No service appears everywhere, the SIM or the modem is the issue.
If calls to one person fail while others work, check whether the number is blocked in Phone, Settings, Block numbers, and ask the other person whether their carrier blocks your number. If every outgoing call fails with a message that the call could not be completed, the mobile plan, SIM or network is the first suspect. If you moved from another phone, the new S22+ may still have your messages in the old phone's app,
so check that Messages is the default SMS app and that your number is registered for RCS chat, which sometimes needs the SIM to be re-registered with your carrier before chats work. On a four-year-old phone, the SIM card itself may be the weak link; carriers have replaced old SIM designs, and a card from the time of purchase may not support newer network features, so a free replacement is worth asking for.
Differential
Likely causes of “Samsung Galaxy S22+ cannot make calls or send messages”, and how to tell them apart
- 1
A SIM line mismatch on the S22+'s two SIM slots
What separates it Calls leave from the wrong number
How to confirm SIM manager: choose the line for calls, texts and mobile data
- 2
A stale RCS registration
What separates it Texts sit pending with a spinning clock
How to confirm Messages, Settings, Chat features: switch off, wait, switch on
- 3
Wi-Fi calling toggled off in a weak-signal home
What separates it Calls fail in rooms with poor signal
How to confirm Phone, Settings, Wi-Fi calling: on
- 4
A forwarding rule left on
What separates it Calls never ring
How to confirm Phone, Settings, Supplementary services: clear forwarding
- 5
An old SIM in a four-year-old phone
What separates it Alerts and messages lag
How to confirm Ask the carrier for a new SIM
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which number appears on outgoing calls and texts
- Whether texts show a pending clock or an error
- Whether Wi-Fi calling is on
- Whether call forwarding is on
Try in this order
0 of 9 completedCheck Airplane mode and Do Not Disturb
ReversibleIn Quick settings.
Set the preferred SIM
ReversibleSettings, Connections, SIM manager.
Check the messaging app
ReversibleDefault app and RCS.
Clear the Messages cache
ReversibleSettings, Apps, Messages, Storage, Clear cache.
Restart the phone
ReversibleHold power and choose Restart.
Ask the carrier about the SIM
ReversibleIf it is old.
Check blocked numbers
ReversibleIn the Phone app, Settings, Block numbers.
Ask the carrier to refresh the line
ReversibleA carrier can re-provision the SIM and check the plan.
Re-register for RCS chat
ReversibleIn the Messages app, Settings, Chat features, turn the chat features off and on and wait for Connected.
Model-specific
What is true of this model and not of its siblings
- Two SIMs
- The S22+ can use both a SIM and an eSIM.
- Old SIMs
- Some old LTE SIMs behave badly in newer phones.
- Blocked numbers
- A forgotten block explains calls from one person failing.
- Re-provisioning
- A carrier can reset the line remotely.
- A new phone
- Chat registration may need to be refreshed after a move.
Stop boundary
When this stops being a self-service repair
- !No service everywhere after a restart and a new SIM needs Samsung to test the modem
- !If texts still stick after resetting chat features, contact the carrier
- !Report the One UI version when you call
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Why do my texts show a pending clock on the S22+?+
The RCS registration is stale; toggle chat features.
Does the S22+ have two SIM options?+
A SIM and an eSIM.
Why do calls fail in some rooms?+
Wi-Fi calling may be off.
Could forwarding stop my calls ringing?+
Yes, check Supplementary services.
calls messages: model differences
Also covered: Samsung Galaxy S25 family; Samsung Galaxy S24 family; Samsung Galaxy S22 family; Samsung Galaxy S20 Ultra family.