Cellular trouble on a Pixel 9 Pro has a recognizable shape in the community threads: owners lose data while calls still work, see an exclamation mark over the signal bars, find 5G dropping at random, or get a No Service indicator in an area with good coverage. The causes cited are newer Android firmware bugs, carrier configuration, and eSIM provisioning, and the phone's Samsung Exynos modem gets the blame most often, though a PhoneArena report tied a wave of data drops to a security update rather than to the hardware.
The fixes are in a short order. Toggle Airplane mode for ten seconds; force restart by holding the power button for about thirty seconds; reseat the SIM tray and wipe its contacts; check Preferred network type; and reset Wi-Fi, mobile and Bluetooth under Reset options. If calls work and data does not, ask the carrier to refresh the line and the eSIM profile before you suspect the phone.
Differential
Likely causes of “Google Pixel 9 Pro has no cellular service or data”, and how to tell them apart
- 1
A software or firmware state in the modem
What separates it An exclamation mark over the bars, or 5G that drops at random
How to confirm Turn Airplane mode on for ten seconds, then force restart by holding Power for about thirty seconds
- 2
A carrier or eSIM provisioning problem
What separates it Calls work but mobile data does not, or the carrier name is missing
How to confirm Ask the carrier to refresh the line and re-provision the eSIM
- 3
A seated SIM tray
What separates it The phone loses the SIM after a knock
How to confirm Power off, remove the tray, wipe the gold contacts and reseat it until it clicks
- 4
A network type that does not suit the area
What separates it 5G flaps in fringe coverage
How to confirm Settings, Network and internet, SIMs, Preferred network type: try 4G (LTE) for a day
- 5
A corrupted network configuration
What separates it Every network misbehaves
How to confirm Settings, System, Reset options, Reset Wi-Fi, mobile and Bluetooth
Before you touch a setting
Record this first — changing settings destroys the evidence
- Whether calls work while data fails
- Whether the line is a physical SIM or an eSIM, and the carrier
- What the signal indicator shows: exclamation mark, No service or 5G flapping
- The Android version and the date of the last update
Try in this order
0 of 6 completedToggle Airplane mode
ReversibleQuick settings, Airplane mode on for ten seconds, then off.
Force restart
ReversibleHold the power button about thirty seconds until the phone restarts.
Reseat the SIM
ReversiblePower off, open the tray, wipe the contacts with a dry soft cloth and reinsert.
Check the network type
ReversibleSettings, Network and internet, SIMs, Preferred network type.
Reset Wi-Fi, mobile and Bluetooth
ReversibleSettings, System, Reset options.
Call the carrier
ReversibleAsk them to refresh the line, check the eSIM and confirm no suspension.
Model-specific
What is true of this model and not of its siblings
- The Pixel 9 Pro's radios
- The Tensor G4 pairs with a Samsung Exynos modem, which owners credit with better signal stability than earlier Pixels but also name in reports of drops.
- A security-update pattern
- PhoneArena reported a wave of data drops after a December security update, which suggests checking the update date when a problem begins.
Stop boundary
When this stops being a self-service repair
- !If a second SIM works in the phone and yours does not, the carrier owns it
- !If no SIM works after the reset, ask Google or a repair partner about the modem
- !If drops began right after a security update, report it in the Pixel community with the build number
Evidence ledger
Sources behind this answer
Google's mobile connectivity checklist.
Restart, SIM, network type and reset steps for the Pixel 9 Pro.
Pixel data drops after a December security update.
Pixel 9 Pro battery, wired and wireless charging, display and modem.
Exact questions
Common questions
Why does my Pixel 9 Pro show an exclamation mark on the signal?+
It means the phone is connected to the tower but cannot reach the internet; owners tie it to firmware bugs, carrier settings or eSIM provisioning.
Why do calls work but data does not on my Pixel 9 Pro?+
The voice and data sessions are separate; the carrier or the data profile is the usual cause.
Which modem does the Pixel 9 Pro use?+
Samsung's Exynos modem, paired with the Tensor G4 chip.
Does Reset Wi-Fi, mobile and Bluetooth delete my data?+
No, it clears network settings only.
cellular: model differences
Also covered: Google Pixel 9 family; Google Pixel 8 family; Google Pixel 7 family; Google Pixel 6 family; Google Pixel 10 family.