Use this article if…
- You are running MK4 first-boot (wizard, Wi‑Fi, mic, Google account, updates), not a dedicated phone- or camera-fault article.
- Wi‑Fi says connected but nothing loads → Internet on MK4. Phone won’t project after setup → Phone pairing · Wireless CP/AA.
Quick answer
First-boot pain is usually Wi‑Fi (join or a stuck Wi‑Fi screen - hotspot, forget network, then real internet), wrong date/time, Google sign-in in a bad webview (Skip and add under Settings), or a mic test before the plug is seated - Skip if allowed, then use PVS firmware only.
Problem
- Harness is done; you are running the MK4 setup wizard and network for the first time.
Symptoms
- Wizard loops or reboots.
- Wi‑Fi will not join - or the setup screen stays stuck on Wi‑Fi.
- Microphone test in the wizard never passes.
- Google account sign-in errors, loops, or “couldn’t sign in.”
Cause
- Network, date/time, mic routing, and account webviews all gate first-boot - one weak link makes the wizard look “broken.”
- Firmware over USB and mic placement are easy to get wrong without the quick-start.
Fix Step-by-step
- Confirm stable power before trusting the wizard - idle the engine if the battery is soft and re-check harness constant, ACC, and earth. Common mistake: chasing setup errors while voltage dips at the radio plug or a fuse is weak.
- Work through prompts in order (language → terms → Wi‑Fi, etc.). If the unit reboots mid-wizard, remove every USB device and retest; if it still loops, → Power / restarts.
- Wi‑Fi won’t join: re-type the password; prefer 2.4 GHz if the router splits SSIDs; move closer; avoid guest/captive-only networks during setup. Stuck on the Wi‑Fi step (spinning, no “Next”): wait on a strong signal, then forget the network and re-add, key-cycle the headunit, or switch to a phone hotspot. Wrong date/time breaks sign-in - set automatic date & time as soon as Settings allows. Says connected but nothing loads, → Internet on MK4 (captive portal, DNS, SIM).
- Google account won’t sign in: fix internet first (previous step), no stable data means endless errors. Confirm automatic date/time. In the wizard, use Skip if offered, finish to the home screen, then add the account under Settings → Accounts (built-in browser there is often more reliable). For 2‑step verification, approve the prompt on your phone or use a backup code - not just the password. Family Link / child-only prompts may block adding an account on this class of device - use an adult account for setup or skip and add later.
- Firmware / USB updates: only packages from PVS - follow MK4 firmware & updates for build checks, safe USB rules, and when to stop. If an update hangs, power-cycle with the USB removed and contact PVS before retrying.
- Microphone test fails: fully re-seat the mic plug, keep the cable off kinks/hot ducts, aim the pickup toward the driver, and retry with the HVAC fan low. If it still fails, use Skip if the wizard allows, complete setup, then check levels in sound/voice settings - ongoing issues → External microphone.
- When the home screen is stable, pair the phone; if CarPlay or Android Auto won’t start, → Phone pairing · CarPlay first connect.
Notes
- Wiring check first: Harness guide
- Rebooting in wizard: Power
- Internet: Wi‑Fi / SIM / hotspot
- iPhone Wi‑Fi vs CarPlay: CarPlay and Starlink / camp Wi‑Fi
- Phone: Wireless CP/AA, Pairing, CarPlay first connect
- Mic after setup: External microphone
- USB updates (detailed): MK4 firmware & updates (PVS)
Firmware & updates (quick)
- Check build: Finish basic wizard where possible, then Settings → System → About device / About tablet, full paths in firmware guide.
- When it’s relevant: PVS emailed a package or support tied your symptom to a release - never download random “Android 10/11” images from forums.
- Safe rules: Strong battery, FAT32/exFAT stick per guide, don’t unplug until the unit reboots itself.
- Stop - contact PVS: Wizard brick, loop after flash, or unknown file attempted.