Yeah. Finally I did it !
Recovered the damn M3 from the bootloop (no recovery menu, no flying ballon, just MEIZU LOGO and constant reboots).
It is NOT a trivial process, but I’ve tried to detailed the best I can so it may help someone else with the same problem:
Everything you need (except the phone and a proper cable) are in the link bellow.
= MEIZU M3 RECOVERY:
The objective of this guide is helping in Meizu phone recovery stuck in a BOOTLOOP with ONLY MEIZU logo visible.
In specific context is for the meizu m3 (also called m3 mini) running with a Mediatek MT6750 chipset.
With this guide, 2 sub-folder are included:
= MEIZU_M3_MT6750-scatter_rom_auth - with m3 specific SCATTER and ROM files;
= SP_Flash_Tool_v5.1636 (auth file) - Flash software tool
THIS GUIDE IS SPECIFIC FOR MEIZU M3 PHONES WITH THE SPECIFIC SYMPTOM DETAILED IN THIS GUIDE.
I TAKE NOT RESPONSIBILITY WHATSOEVER FOR WHAT A USER MAY DO.
The symptom we are trying to solve with this guide is when the phone is stuck in a bootloop.
- The bootloop shows the MEIZU logo then the phone turns off and on again.
- The phone CAN enter fastboot mode (keeping power and vol- buttons pressed together) but it is not possible the flash anything as the boot is locked by meizu.
- The phone CANNOT enter recovery mode (keeping the power and vol+ buttons pressed together) and so it is not possible to normally flash the firmware.
Shutdown the phone stuck in a bootloop:
To shutdown the phone keep the power button pressed and wait for 2 bootloops. At the second power off (meizu logo disappearing) immediately release the power button.
Get the phone out of the bootloop
This is a set of several steps to be made. I was able to recover my phone by doing all this steps, I cannot confirm if it will work for every phone and if all the steps are needed:
(CREATING THE SPECIAL CABLE IS NOT REQUIRED. IT IS KEPT IN THIS GUIDE AS A REFERENCE)
- Make a specific USB OTG host cable:
A. Pickup a micro usb to usb cable;
B. Disassemble the connecter and solder both 4 and 5 pin together;
C. Most cables have 5 connectors in the phone side, but only 4 wires inside the cable, so the connector must be disassembled.
There are many guides on the net for this, in the following list there is an illustration and some helpful links on how to do it:
![alt text](image url)
Simple video guide in youtube:
2. Use sp_flashtool (flashtool.exe):
a. Uncompress the meizu-m3-recovery.zip file into your pc;
b. Browse into the uncompress location and right-click the flash_tool.exe file and select “run as administrator”;
c. Go to the menu Options -> connection -> usb full speed with battery;
d. For the download agent select DA_PL.BIN form the “SP_Flash_Tool_v5.1636 (auth file)” folder;
e. For the scatter-loading file select MT6750_android_scatter.txt included in the “MEIZU_M3_MT6750-scatter_rom_auth” folder;
f. Select the “download only” option;
g. Don’t press the “download” button yet – just keep reading;
All included roms should be automatically selected;
I suggest to select and flash one ROM at a time following the order bellow:
3. Write each rom in turn:
Keep the phone powered off – IF you cannot power off the phone keep the phone power key pressed down, count 2 power-offs, at the second power-off immediately release the power key.
If this doesn’t work, try going first into fastboot mode by pressing power and vol- keys and wait for 2 or 3 reboots until the phone stops at the fastboot menu. When this happens, press the power key until the phone powers off (release the power key immediately after the screen goes black).
Press the download key on sp_flash_tool;
Connect the usb cable to the phone BUT NOT TO THE PC!
Now, pay attention: Press the power key on the phone. Once the phone vibrates IMMEDIATELY connect the cable to the PC.
A yellow bar should display in the bottom of sp_flash_tool window
The phone should power off and turn on again, the ROM should be loaded into the phone, the phone powers off, wait 1 minute ……… “OK” should be displayed by sp_flash_tool !
Disconnect the cable from the PC.
Repeat the process for each rom of the above list.
4. Flash the BOOT rom
If everything worked ok for all the roms in the list we should now do it for BOOT.
After flashing the BOOT rom (following the procedure detailed before) the phone SHOULD NOT power off, but it should enter in boot mode displaying the typical flyme rotating BLUE BALLON
Wait for about 10 minutes …
… Sp_flash_tool should report an error, but the phone will eventually start optimizing apps opening the way for a normal boot!
5. GOOD LUCK
And don’t forget to post your results
= Instructions, SP Flash TOOL and ROMS available here: