Require a specific Preloader handshake via specialized MediaTek bypass utilities. Step 2: Preparing the Factory ZDroid Flashing Script
Modifying the default partition size limits provides the necessary storage headroom to mount bloated modern operating systems or lightweight Linux environments directly onto legacy hardware structures.
| Problem | Symptom | Solution | |---------|---------|----------| | | QFIL error “Unable to write to partition” | Ensure you used --memory UFS flag for newer phones; older eMMC requires --memory eMMC | | ZDroid respawns | After reboot, settings show “Device Locked” | ZDroid has a secondary watchdog in tz.mbn . Flash an unlocked tz partition from a similar chipset. | | No fastboot | Device only boots to EDL | You deleted aboot . Use sdl.exe to restore aboot backup from Step 3. | | IMEI = 0 | Radio dead after kernel unlock | Your QCN backup is corrupted. Restore using QPST Software Download → Restore QCN. | unlock zte kernel zdroid smt
Verify that the tool recognizes the device by checking the "Device Status" section. Step 3: Unlocking/Flashing the Kernel
Tap 7 times until you see "You are now a developer". Flash an unlocked tz partition from a similar chipset
Unlocking the ZTE Kernel on ZDroid SMT Devices
Enable USB Debugging on the device under Settings > Applications > Development . 2. Entering Recovery or FTM Mode | | IMEI = 0 | Radio dead
The exploit works by disabling bootloader verification in the phone’s boot chain.
On newer ZTE devices (2019+), this partition is hidden. You find its offset by dumping the partition table: