Motorola Xoom Mz604 Custom Rom May 2026

Over the last decade, XDA Developers produced five legendary builds for the Wingray. Here is the definitive ranking.

If your Motorola XOOM MZ604 is sitting in a drawer, take it out. Charge it for 24 hours (the battery controller might be asleep). Unlock the bootloader. Flash OmniROM KitKat.

You will be frustrated by the slow storage. You will curse the 1280x800 screen’s viewing angles. But when you hold it, you feel the weight of Android’s history. The XOOM was the first, and with custom ROMs, it refuses to be the last.

Call to Action: Head over to the XDA-Developers "Motorola Xoom Android Development" forum. Download the latest builds. Keep the legend alive.

Have a favorite ROM for the MZ604 not listed? Let us know in the comments below.

Article ID: AN-4022-XOOM Last Updated: 2025 Disclaimer: Flashing custom ROMs voids your warranty (which expired in 2013 anyway). You assume all risk. motorola xoom mz604 custom rom

This is a great but challenging request. The Motorola Xoom MZ604 (Wi-Fi only, "Wingray") is a vintage device (2011). Finding a modern, stable, and well-documented custom ROM requires digging into legacy forums.

Here is the definitive, practical guide for installing a custom ROM on your MZ604 in 2024–2025.

Before proceeding with any software modification, it is critical to identify the specific hardware variant. Installing software intended for a different variant will result in a "hard brick."

Warning: Most custom ROMs are built specifically for the MZ601 (Wi-Fi) or MZ600 (Verizon). ROMs specifically optimized for the MZ604 are rarer. Users often cross-flash MZ601 ROMs on MZ604 devices, which works for the OS but may break cellular data functionality unless specific patches are applied.

Note: This guide targets the Motorola Xoom MZ604 (Wi‑Fi + Verizon LTE model). Installing a custom ROM requires technical steps that can brick your device or void warranties. Proceed only if you accept those risks. Over the last decade, XDA Developers produced five

The MZ604 was a legendary device for one specific reason: it was the first tablet to be granted an official unlock method from the manufacturer. But "official" in 2011 meant "voiding your warranty and praying you didn't brick it."

Elias connected the mini-USB cable—the fat one, not the micro that came later—and fired up the Android Debug Bridge (ADB) on his Linux terminal.

adb reboot bootloader

The screen went black, then displayed a stark warning text in the center. This was the "locked" state. To flash a custom ROM, Elias needed to unlock the bootloader.

"It’s funny," Elias narrated. "Back in the day, unlocking this voided your warranty instantly. Now, nobody cares. But the process is risky. One wrong command, and this becomes a paperweight." Before proceeding with any software modification, it is

He executed the command: fastboot oem unlock

A terrifying prompt appeared on the Xoom. THIS OPERATION WILL VOID YOUR WARRANTY AND ERASE ALL USER DATA.

Elias confirmed. The tablet rebooted, wiping itself clean. When it returned to the bootloader, the "Lock State" read: UNLOCKED.

"First hurdle cleared," Elias grinned. "Now we have to fix the software."

If fastboot oem unlock fails, repeat steps 4–6. Some Xooms need the specific “Unlocker.zip” flashed via stock recovery instead.