When a phone or tablet function changes with the app, network, account or location, that context is the first repair boundary. For Android mobile hotspot, first confirm cellular works on the phone, disable VPN for one test and connect one nearby client.
What this covers
- Android mobile hotspot with this exact failure state
- Diagnosis across carrier/tethering plan versus cellular data, VPN, band and client compatibility
What it does not cover
Try in this order
0 of 4 completedCapture the exact failure state
ReversibleName the failing app, network, account or location and one context that still works. Expected behavior: share an eligible cellular data connection over a supported secured Wi-Fi band.
Isolate the component boundary
ReversibleConfirm cellular works on the phone, disable VPN for one test and connect one nearby client. Swap only that context while keeping the device, line and connection settings unchanged. Boundary to separate: carrier/tethering plan versus cellular data, VPN, band and client compatibility.
Correct only the proven cause
ReversibleCorrect the carrier setting, band compatibility or client network profile. Repair the isolated permission, app profile, carrier state or network boundary.
Verify and stop safely
ReversibleRetest the previously failing and known-working mobile contexts after restart. Do not use open security or overheat the phone under prolonged tethering.
Evidence ledger
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