BenchReady — Microphone mute, Windows input and meeting access
Intel machine types 20W0 or 20W1 · 2.0.0
Separate hardware mute, selected input and app permissions from a microphone hardware claim.

MODEL FIT
Read the underside machine-type label or Lenovo Vantage device details locally. Confirm T14 Gen 2 Intel and 20W0/20W1. Keep the full serial number private.
Windows 10/11, original Lenovo firmware. Labels vary between Windows versions; managed systems require IT approval for settings changes.
Excluded: ThinkPad T14 Gen 2 AMD; ThinkPad T14 Gen 1; ThinkPad T14s Gen 2; ThinkPad T15

PREPARATION
[ ] Owner/IT permits a private microphone test
[ ] A nonprivate phrase can be spoken locally
[ ] Windows Sound settings
[ ] Existing meeting app’s local input test
[ ] Keep any existing backup accessible to you.
[ ] Keep credentials and personal files outside this record.

GUIDE
1. Inspect the microphone-mute key marked on this keyboard and its on-screen state. The guide distinguishes icon actions from F-key actions through FnLock; use the shown microphone action, not a guessed key sequence.
Sources: https://download.lenovo.com/pccbbs/mobiles_pdf/t14_gen2_t15_gen2_p14s_gen2_p15s_gen2_ug_en.pdf; Printed pp. 10–11 → special keys / FnLock / microphones
2. Open Settings → System → Sound and select the intended built-in microphone under Input. Record whether the app had instead selected a headset, dock or other source.
Sources: https://support.microsoft.com/en-us/windows/hardware/drivers/how-to-set-up-and-test-microphones-in-windows; Set up and test → Sound / Input
3. For Windows 11 review Privacy & security → Microphone; for Windows 10 review Privacy → Microphone. Check intended-app and desktop-app access as applicable; managed controls go to IT.
Sources: https://support.microsoft.com/en-gb/windows/privacy/windows-camera-microphone-and-privacy; Microphone control → Windows 11 / Windows 10
4. Follow the installed Windows Input test controls using a nonprivate phrase. Record only whether input is detected; any audio sample stays in the Windows tool and is not attached here.
Sources: https://support.microsoft.com/en-us/windows/hardware/drivers/how-to-set-up-and-test-microphones-in-windows; Test an installed microphone; original privacy-preserving result
5. Compare the meeting app’s selected microphone and its local test with the Windows result. A working Windows input with a failing app gives an app-selection/permission lead.
Sources: https://support.microsoft.com/en-us/windows/hardware/drivers/how-to-set-up-and-test-microphones-in-windows | https://support.microsoft.com/en-gb/windows/privacy/windows-camera-microphone-and-privacy; Selected Input / intended-app access; original cross-app comparison

EVIDENCE TO RECORD
Selected input category: Not recorded
Mute state: Not recorded
App permission: Not recorded
Signal scope: Not recorded
Windows input test — Intended input, understood mute, nonprivate phrase: Not checked
Meeting app local test — Same input and permitted app: Not checked
Built-in without headset/dock — Only when safe to disconnect; same local input test: Not checked

STOP CONDITIONS
Stop using and charging equipment with swelling, casing separation, smoke, a burning smell or suspected battery damage. Do not open or press on it.
Set damaged accessories aside. Do not open mains adapters or force connectors.
Do not erase, reset, flash firmware or bypass a lock as a default diagnostic step.

OUTCOMES
Microphone path recorded: The selected microphone produced input in both local tests.
- Retain mute, input category and permission states.
- Restore intended privacy settings after testing.
Review intended microphone access: Owner or IT must resolve the relevant permission.
- Provide Windows version and managed-control state.
- Allow only the intended app; keep recordings private.
Review the meeting app input: Windows detected the selected microphone while the app did not.
- Confirm the app selected the same input.
- Share the Windows-versus-app result with its support.
Confirm microphone selection and mute: The input path is not yet established.
- Identify the keyboard’s microphone action from its icon.
- Record built-in versus headset/dock selection.
Request microphone input support: No input is detected with selected, unmuted and permitted conditions.
- Provide Windows version, input category and mute/access states.
- Share local test outcomes without audio recordings.
Keep the unanswered checks visible: Mute state, selected input, OS permissions or local test results are unknown.
- Provide input category and keyboard mute state.
- Separate Windows detection from the meeting app result.
- Keep unperformed conditions marked Not tested. Ask the provider to confirm these before further changes.
Stop the powered checks: Stop using or charging damaged equipment. Keep away from hot or smoking equipment; obtain emergency help for an immediate fire risk. Arrange manufacturer guidance before handling or transport.
- Tell Lenovo or your IT team about the visible damage before arranging transport.
- Provide input category and keyboard mute state.
- Do not open the case, remove the battery, press a lifted surface, or continue a test to complete this record.

SOURCES
ThinkPad T14 Gen 2 user guide: https://download.lenovo.com/pccbbs/mobiles_pdf/t14_gen2_t15_gen2_p14s_gen2_p15s_gen2_ug_en.pdf (Printed pp. 1–5, 9–14, 16–19, 23–25, 27–33, 62, 65–67; checked 2026-10-13)
Windows camera, microphone and privacy: https://support.microsoft.com/en-gb/windows/privacy/windows-camera-microphone-and-privacy (Windows 11 / Windows 10 → control camera and microphone access; checked 2026-10-13)
Set up and test microphones in Windows: https://support.microsoft.com/en-us/windows/hardware/drivers/how-to-set-up-and-test-microphones-in-windows (Select Input / Test an installed microphone; checked 2026-10-13)

This is a blank guide. Use the website to save observations and export an importable record. No physical repair has been verified.