No sound from speakers. Solution: In older ROMs, the microphone mute toggle breaks speakers. Plug in headphones, play a sound, then remove headphones. Reboot.
Commands alternative (fastboot method) exist for ROMs packaged as images, but most community ROMs use recovery zips. motorola xoom mz604 custom rom
Installing a custom ROM over an old OS without cleaning first will cause conflicts, boot loops, and force closures. You need to perform a "clean flash". No sound from speakers
A compatible version of TWRP (Team Win Recovery Project) or Rogue Recovery built specifically for the "Wingray" (MZ604 codename). play a sound
Boot back into TWRP, perform another advanced factory wipe, and re-flash the ROM. Ensure you didn't accidentally flash an MZ601 (3G/LTE) ROM on your MZ604 (Wi-Fi) hardware. Issue: "Status 7 Error" during installation