[Guide] [Unbrick] How to revive a hard bricked Moto G5

10th April 2018 07:16 PM 25 Thanks
TheFixItMan Senior Member
This guide is for hard bricked Moto G5 Cedric
Hard bricked means a device which can not enter bootloader mode normally


This method has now been confirmed working

Works with XT1672 XT1670 XT1671 XT1675 XT1676 (and most likely all others and if you ask if it will work on your version I will just copy & paste this to you!)

Smaller Image
Thanks to Luka Panio, Omega, and nift4 we now have a smaller image size
Goto This github page and under assets download mmcblk0.img.gz
Unzip this image

Previous Larger Images
Mega
Download mmcblk0.zip image from Mega
Create your own mega account and import the file into your mega account. Log into your account and download it from your own account
Extract mmcblk0.img from mmcblk0.zip

Or for those whose who can't use mega or have unstable Internet I've split the large file size into smaller multiple zip files. You must download each part and then extract using an unzip tool like winrar or 7zip

Android File Host
Download mmcblk0.zip mmcblk0-part1.zip and mmcblk0-part2.zip from Android File Host
Extract mmcblk0.z01 from mmcblk0-part1.zip
Extract mmcblk0.z02 from mmcblk0-part2.zip
Extract mmcblk0.img from mmcblk0.zip (If prompted point to mmcblk0.z01 and mmcblk0.z02 but it shouldn't ask if all files are in the same folder)


Requirements
Freshly formatted microSD card 16gb if using the smaller image or at least 32gb if using the previous larger images (It needs to have at least 31.3gb free after formatting - if it displays as less you will need to buy a 64gb microSD card or use the smaller image)
7zip
Linux mint live usb/dvd
USB card reader


Method
The BEST method to flash the sdcard with mmcbk0.img file is to use LINUX!
Windows users have no need to install Linux on their PC, you can run Linux from a bootable usb-stick that is at least 8gb or a dvd

Do not run Linux as a virtual machine on Windows! Use the live USB/DVD

0) Put the Moto g5 on mains charge until you have finished flashing the sdcard so it's fully charged ready for the boot test!
1) Run Linux, preferably cinnamon or mate versions of Linux Mint
2) Insert the sdcard in pc or card reader and open "Disks" app
3) In "Disks" app select sdcard and you will see the sdcard partitions
4) Press "-" to delete the partition (delete all partitions if there is more than one)
5) Press "+" to create a new one and name it mmcblk0, set FAT(FAT32) file format and press "CREATE"
6) Press "Play" button to mount the sdcard, look to see what path the sdcard has (/dev/sd??) and then close the "Disks" app
7) Go to Desktop, open "Computer" and navigate to the location where the img file is extracted (mmcblk0.img)
8) Open the window where img file is with root (right click on window and select "open as root")
9) In root window open the Terminal (right click on window and select "open terminal")
no need to type "su" in terminal, it has root already (see notes if using Linux live usb/dvd)
10) Type in terminal the command written below and don't forget to eliminate that "1" from the sdcard path,
that "1" can make the difference between the phone booting or not!!!!!


Things to note
Linux Live dvd doesn't have open as root so just open in terminal and add sudo to the start of the commands
I've included this in the commands below

If you get a status error just remove status=progress from the terminal command below


Terminal comands
- if your sdcard is seen like " /dev/sdb1"
in terminal apply this command:
Code:
 
sudo dd bs=4M if=mmcblk0.img of=/dev/sdb status=progress oflag=sync
-if your sdcard is seen like " /dev/mmcblk0p1"
in terminal apply this command:
Code:
sudo dd bs=4M if=mmcblk0.img of=/dev/mmcblk0 status=progress oflag=sync
and the flashing process should start
When it finishes, test the sdcard in the phone and it should boot!

If you get a size error of the sdcard in terminal you have to change the sdcard and try again!

Thanks to @vaserbanix for the original version of this guide


Re-flash Stock Firmware
Once the phone is in bootloader mode you can flash stock firmware via fastboot
Note that in order to flash gpt the firmware MUST be the same or newer than the version currently on your phone

Firmware can be download from Here

Once you have firmware that is the same or newer than your current version you can remove the sd card and run these commands (assuming you have fastboot all setup on your pc)

If you get a security downgrade error when you try to flash gpt.bin or bootloader.img then the firmware you are trying to flash is too old!

Code:
 
fastboot oem fb_mode_set
fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash system system.img_sparsechunk.6
fastboot flash system system.img_sparsechunk.7
fastboot flash system system.img_sparsechunk.8
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1 
fastboot erase modemst2 
fastboot flash fsg fsg.mbn
fastboot erase cache 
fastboot erase userdata 
fastboot oem fb_mode_clear
fastboot reboot
10th April 2018 09:26 PM 0 Thanks
Exanneon Senior Member
I might consider doing this if you explained what this loader.img is?
Is it something one would flash to recover their G5?
10th April 2018 11:18 PM 1 Thanks
TheFixItMan Senior Member
Quote:
Originally Posted by Exanneon

I might consider doing this if you explained what this loader.img is?
Is it something one would flash to recover their G5?

Potentially - its used to boot off the sd card so those with a bricked phone can access the bootloader through booting it off their sd card & then flash the firmware via fastboot

See
https://www.aryk.tech/2017/02/how-to...droid.html?m=1
11th April 2018 12:48 AM 0 Thanks
takoa Senior Member
I hope the solution is achieved soon
11th April 2018 01:59 AM 2 Thanks
staffe Junior Member
Here you go:
https://cloud.wdata.de/index.php/s/JK2by8YBQCSrsof

Device Info:
Cedric XT1676 Retail
LineageOS 14.1
TWRP 3.2.1 (32bit)
11th April 2018 10:35 AM 0 Thanks
TheFixItMan Senior Member
Quote:
Originally Posted by staffe

Here you go:
https://cloud.wdata.de/index.php/s/JK2by8YBQCSrsof

Device Info:
Cedric XT1676 Retail
LineageOS 14.1
TWRP 3.2.1 (32bit)

Thanks for uploading it
11th April 2018 01:27 PM 0 Thanks
takoa Senior Member
Hello, I followed all the steps of the link, using a 16gb card and the file here hung and nothing, the phone does not start.
In my case it is an xt1676 which only turns on the led and blinks when I connect it to the pc by usb or the wall charger.
11th April 2018 01:31 PM 0 Thanks
TheFixItMan Senior Member
Quote:
Originally Posted by takoa

Hello, I followed all the steps of the link, using a 16gb card and the file here hung and nothing, the phone does not start.
In my case it is an xt1676 which only turns on the led and blinks when I connect it to the pc by usb or the wall charger.

I take it the programme wrote the loader image successfully to sdcard

So either the person who uploaded the Loader.img interrupted the extract & so its corrupted or this phone can't boot off the sd card with this method

It does say it may take a while to boot but who knows
11th April 2018 01:35 PM 0 Thanks
TheFixItMan Senior Member
If anyone else can upload a Loader.img using the methods in the first post so there's a comparison please do
11th April 2018 01:57 PM 0 Thanks
takoa Senior Member
Yeah right.
What is strange to me, although maybe it is, is the size of the file hung here, 165 mb.
the 16gb card is formatted in fat32, is it correct?
Does the DiskImageRev2 program automatically create the card to be bootable?
Why install the qualcomm drivers if the phone does not have to be connected to the PC? It is assumed that the phone will boot in bootloader mode and there only need the adb / fastboot controllers.
I do not mind to keep trying since the phone I give for lost at the moment.
Can someone return to the first post with an xt1676?
Thank you.
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