How to lock bootloader without wiping? - Xiaomi Mi A1 Questions & Answers

Old thread: Unrooting gives me bootloop?
Hi there everyone,
After upgrading to Oreo, I unlocked my bootloader, flashed TWRP and Magisk. After that I did a backup of my System and Boot partitions on my currently active slot B. For some reason Slot A doesn't really boot up, so I don't really know what's up with that.
The problem is, before rooting everything was perfect and after the root I feel the instability. I've been using rooted devices for years now and I've never really had problems with the stock ROM being rooted.
So how do I unroot? Well, it's as simple as clicking Complete Unroot in Magisk. Yeah, that bootloops. Trying to flash MagiskUninstaller zip? That bootloops too. The only thing that saved me from those bootloops was that backup I did with TWRP. Yeah, that was after Magisk already had take a crap on my boot image.
Any suggestions that don't involve me losing my 30 Gigs of precious data? I would like to try with Mi Flash Tool but I'm scared from bootlooping for long periods of time (I don't have all day, after all).
New question: How to lock bootloader without wiping?
Hi there again!
I tried flashing the original system.img and boot.img from a fastboot Oreo ROM I found online. I just wanted to lock my bootloader, since currently I don't really need Root access anymore and I don't want this poor security a phone with an unlocked bootloader brings. The problem is, when I type fastboot oem lock it doesn't want to boot anymore, even without Magisk.
Does anybody know a fastboot ROM out there that can be locked? At the official MIUI.com website the fastboot ROM hasn't been updated for a very long time and I don't want to wipe my data. Does anybody have a perfectly working Oreo image that can be locked?

It bootloops, because you:
1. installed TWRP (first mod of boot.img)
2. installed Magisk (it backed up your boot.img with TWRP already installed)
3. when you uninstalled Magisk, you effectively restored boot image with TWRP, which as far as I know doesn't disable dm-verity which in turn doesn't allow boot of modified system/boot image
The safest method of unrooting is to flash stock Oreo boot.img directly via fastboot. Next time try to avoid installing TWRP (it's not needed for installing Magisk). Don't try to flash Nougat system, your data can't be read by old system anymore.
For a quick solution it should be enough to install Magisk again.

_mysiak_ said:
It bootloops, because you:
1. installed TWRP (first mod of boot.img)
2. installed Magisk (it backed up your boot.img with TWRP already installed)
3. when you uninstalled Magisk, you effectively restored boot image with TWRP, which as far as I know doesn't disable dm-verity which in turn doesn't allow boot of modified system/boot image
The safest method of unrooting is to flash stock Oreo boot.img directly via fastboot. Next time try to avoid installing TWRP (it's not needed for installing Magisk). Don't try to flash Nougat system, your data can't be read by old system anymore.
For a quick solution it should be enough to install Magisk again.
Click to expand...
Click to collapse
Thank you very much for the help! I'm gonna try this now. I'm pretty new to this A/B partitioning scheme, I knew that there isn't a recovery partition but I didn't know that TWRP is stored in Boot.img
Thanks again! Have a wonderful day/night!

_mysiak_ said:
It bootloops, because you:
1. installed TWRP (first mod of boot.img)
2. installed Magisk (it backed up your boot.img with TWRP already installed)
3. when you uninstalled Magisk, you effectively restored boot image with TWRP, which as far as I know doesn't disable dm-verity which in turn doesn't allow boot of modified system/boot image
The safest method of unrooting is to flash stock Oreo boot.img directly via fastboot. Next time try to avoid installing TWRP (it's not needed for installing Magisk). Don't try to flash Nougat system, your data can't be read by old system anymore.
For a quick solution it should be enough to install Magisk again.
Click to expand...
Click to collapse
Hey there again!
I tried to boot from the stock boot.img but it bootloops again! The backup from before is, again, what saved me.
Am I stuck now? Is there something wrong with my system.img? Or my /data partition? I'm scared of even reflashing clean.

nicolasmart said:
Hey there again!
I tried to boot from the stock boot.img but it bootloops again! The backup from before is, again, what saved me.
Am I stuck now? Is there something wrong with my system.img? Or my /data partition? I'm scared of even reflashing clean.
Click to expand...
Click to collapse
Which stock boot.img exactly did you use?

_mysiak_ said:
Which stock boot.img exactly did you use?
Click to expand...
Click to collapse
The one from the Oreo fastboot ROM. Got it from here.

nicolasmart said:
The one from the Oreo fastboot ROM. Got it from here.
Click to expand...
Click to collapse
When you ran TWRP for the first time, it asked you if you want to allow system modification (mount as R/W) - did you allow it? If yes, it has tampered your system partition and you won't be able to boot with stock boot.img due to dm-verity. Either install Magisk again or reflash stock Oreo system.img (from the link you provided).

_mysiak_ said:
When you ran TWRP for the first time, it asked you if you want to allow system modification (mount as R/W) - did you allow it? If yes, it has tampered your system partition and you won't be able to boot with stock boot.img due to dm-verity. Either install Magisk again or reflash stock Oreo system.img (from the link you provided).
Click to expand...
Click to collapse
OK, I can reinstall the system.img and boot.img via Fastboot. It won't delete any data, right?
Edit: Thanks for all your support again! You're the saviour of my Mi!

nicolasmart said:
OK, I can reinstall the system.img and boot.img via Fastboot. It won't delete any data, right?
Edit: Thanks for all your support again! You're the saviour of my Mi!
Click to expand...
Click to collapse
Your data is safe as long as you don't run incorrect command (DON'T flash userdata.img and DON'T run fastboot command with "-w" switch)
fastboot flash boot boot.img
fastboot flash system_a (and/or system_b) system.img
and you are good to go. Don't panic when system flashing will appear as stuck, it takes some time while it splits 3gb file into 6 smaller ones and starts the actual flashing.

_mysiak_ said:
Your data is safe as long as you don't run incorrect command (DON'T flash userdata.img and DON'T run fastboot command with "-w" switch)
fastboot flash boot boot.img
fastboot flash system_a (and/or system_b) system.img
and you are good to go. Don't panic when system flashing will appear as stuck, it takes some time while it splits 3gb file into 6 smaller ones and starts the actual flashing.
Click to expand...
Click to collapse
Thank you! But why should I run fastboot flash boot boot.img?? Isn't it fastboot flash boot_b boot.img? I'm on slot B currently.

nicolasmart said:
Thank you! But why should I run fastboot flash boot boot.img?? Isn't it fastboot flash boot_b boot.img? I'm on slot B currently.
Click to expand...
Click to collapse
You are right, for restore you should "fastboot flash boot_b boot.img". I was probably thinking about rooting procedure where you should use "fastboot boot boot.img"

_mysiak_ said:
You are right, for restore you should "fastboot flash boot_b boot.img". I was probably thinking about rooting procedure where you should use "fastboot boot boot.img"
Click to expand...
Click to collapse
Well, I did all that and I now have a perfectly working system with stock recovery and I think it doesn't boot loop anymore with a stock boot image. Thank you!
However, I tried to lock my bootloader via fastboot oem lock, the first time I was using some shady boot image which should be "stock" but it really wasn't, and it said "The system has been destroyed." I really laughed at this label and went into fastboot to unlock my bootloader again. I switched the boot image to a legit one which has Magisk installed, tried to lock again but this time it flashed the Mi logo for a split second and then a dark screen appeared (can somebody please explain this weird behaviour?). I really scared because the PC wasn't detecting the phone but I held the Volume Down + Power buttons for 10 seconds hoping I will see the Mi Bunny on the Fastboot. Yeah, it worked. I unlocked the bootloader again (lol) and my phone was working again!
Don't worry! My phone's still OK and 100% functioning.
The only reason I tried to lock my bootloader with Magisk installed is because somebody said it worked for them. However, now I realize how risky would that be. Whenever an OTA appears you should hope you don't get locked out of your phone.
So, people with a rooted Mi A1 - don't lock your bootloader unless you fully unroot and revert to stock!!!

How can I lock my bootloader again without wiping? (See the updated first post for more information)

nicolasmart said:
How can I lock my bootloader again without wiping? (See the updated first post for more information)
Click to expand...
Click to collapse
Just wait for an official Xiaomi fastboot Oreo ROM and either use MiFlash or included script "flash_all_except_storage.bat". It will lock bootloader at the end of flashing procedure. Though you probably won't gain much added security as you can unlock the bootloader without data wipe at any time (some reports say that you even don't need "allow oem unlock" in developer settings, but I haven't tried that).

nicolasmart said:
How can I lock my bootloader again without wiping? (See the updated first post for more information)
Click to expand...
Click to collapse
For more detailed instructions have a look over here: https://forum.xda-developers.com/mi-a1/how-to/ota-official-fastboot-image-n2g47h-7-12-t3728929
flash_all_except_storage = Keep your data, bootloader gets re-locked is the variant you are looking for.
Please keep in mind, that downgrading is not recommended. So this solution is absolutely fine when you are at 7.12.19 or below.
If you are not, you have to wait for the next fastboot update package to become available (like me)

It’s better to do a clean flash using the ROM and MiFlash provided on Xiaomi Website to ensure that the system is unmodified and you won’t get errors or bricks during a future OTA.

I don't want to clean flash. It will take forever for Xiaomi to release the new fastboot ROM

nicolasmart said:
I don't want to clean flash. It will take forever for Xiaomi to release the new fastboot ROM
Click to expand...
Click to collapse
Fastboot ROM should be out in a couple of days, usually it's released one week after first OTA update (the one from 19th December was online on 26th or 27th if I remember correctly).
Edit: Clean flash is not necessary, only full flash of all stock images, except user data.

_mysiak_ said:
Though you probably won't gain much added security as you can unlock the bootloader without data wipe at any time
Click to expand...
Click to collapse
As an old Nexus user (Nexus 7, Nexus 7 2013, Nexus 5X) I was shocked when I have found this.
_mysiak_ said:
(some reports say that you even don't need "allow oem unlock" in developer settings, but I haven't tried that).
Click to expand...
Click to collapse
Even this is true for Mi A1 in Nougat and Oreo too. So two critical security omissions by XIAOMI. One must ask himself if it is bug or strange feature
Code:
Developer options / OEM unlocking
Alow the bootloader to be unlocked - option is switched off
C:\>adb devices
List of devices attached
******** device
C:\>adb reboot bootloader
C:\>fastboot devices
******** fastboot
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Device critical unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.070s]
finished. total time: 0.073s
C:\>fastboot oem unlock
...
OKAY [ 0.153s]
finished. total time: 0.158s
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.069s]
finished. total time: 0.073s
C:\>fastboot reboot
rebooting...
finished. total time: 0.021s
Developer options / OEM unlocking
Bootloader is already unlocked - option is switched off
C:\>adb devices
List of devices attached
******** device
C:\>adb reboot bootloader
C:\>fastboot devices
******** fastboot
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.070s]
finished. total time: 0.074s
C:\>fastboot oem lock
...
OKAY [ 0.088s]
finished. total time: 0.091s
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Device critical unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.070s]
finished. total time: 0.074s
C:\>fastboot reboot
rebooting...
finished. total time: 0.020s
C:\>

_jis_ said:
As an old Nexus user (Nexus 7, Nexus 7 2013, Nexus 5X) I was shocked when I have found this.
Even this is true for Mi A1 in Nougat and Oreo too. So two critical security omissions by XIAOMI. One must ask himself if it is bug or strange feature
Code:
Developer options / OEM unlocking
Alow the bootloader to be unlocked - option is switched off
C:\>adb devices
List of devices attached
******** device
C:\>adb reboot bootloader
C:\>fastboot devices
******** fastboot
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Device critical unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.070s]
finished. total time: 0.073s
C:\>fastboot oem unlock
...
OKAY [ 0.153s]
finished. total time: 0.158s
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.069s]
finished. total time: 0.073s
C:\>fastboot reboot
rebooting...
finished. total time: 0.021s
Developer options / OEM unlocking
Bootloader is already unlocked - option is switched off
C:\>adb devices
List of devices attached
******** device
C:\>adb reboot bootloader
C:\>fastboot devices
******** fastboot
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.070s]
finished. total time: 0.074s
C:\>fastboot oem lock
...
OKAY [ 0.088s]
finished. total time: 0.091s
C:\>fastboot oem device-info
...
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Device critical unlocked: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.070s]
finished. total time: 0.074s
C:\>fastboot reboot
rebooting...
finished. total time: 0.020s
C:\>
Click to expand...
Click to collapse
Thanks for the confirmation. I consider it as a serious security flaw and was really surprised as well. I would like to know Xiaomi's reason to do it this way.. Users should be aware that they have to keep data encrypted with good PIN/pattern and request it on each boot to keep information secure.

Related

SOLVED: Unable to OEM unlock. No recovery. No root. What do?

Edit: Solved by using Method 2 on http://www.technobuzz.net/unbrick-oneplus-2/ . Thanks
I can boot into system / OxygenOS 2.1.0. But the device is not rooted. If I disable OEM unlock under settings, fastboot tells me I cannot unlock as it's disabled. If it's enabled in settings, running fastboot oem unlock only gives "OK", and the phone enters a bootloop. I power it down, re-enter fastboot and it's still locked.
Somehow my recovery partition got corrupted as I cannot boot into it (with volume down or from within the OS), the phone just goes back to the bootloop if I attempt it.
fastboot oem device-info
...
(bootloader) Device tampered: true
(bootloader) Device unlocked: false
(bootloader) Device is_verified: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
(bootloader) console_locked: 1
(bootloader) exec_console_unconsole: 0
OKAY [ 0.078s]
finished. total time: 0.078s
Click to expand...
Click to collapse
E:\Android\OP2>fastboot oem unlock
...
OKAY [ 0.000s]
finished. total time: 0.000s
Click to expand...
Click to collapse
E:\Android\OP2>fastboot flash recovery twrp-2.8.7.0-oneplus2.img
target reported max download size of 536870912 bytes
sending 'recovery' (28144 KB)...
OKAY [ 0.671s]
writing 'recovery'...
FAILED (remote: device is locked. Cannot flash images)
finished. total time: 0.702s
Click to expand...
Click to collapse
E:\Android\OP2>adb shell
[email protected]:/ $ u
su
/system/bin/sh: su: not found
Click to expand...
Click to collapse
Is there anything I can do at this point?
First, be sure that you are running CMD with administrator privileges, then check your phone drivers, if it still doesn't work, try with resetting your device, clear everything, install your rom once again.
Fr3ddyZ said:
First, be sure that you are running CMD with administrator privileges, then check your phone drivers, if it still doesn't work, try with resetting your device, clear everything, install your rom once again.
Click to expand...
Click to collapse
CMD isn't running with admin privileges. Why does that matter? The fastboot commands get through to the phone.
I can't install any ROM as I don't have root or recovery.
Thanks
My bad didn't read right your question.
EDIT: You said that you are using OxygenOS 2.1.0. try OTA update.
I met this problem too, and I found post http://forum.xda-developers.com/showpost.php?p=63021396&postcount=192 works
just executing "fastboot continue" twice!
mctrain said:
I met this problem too, and I found post http://forum.xda-developers.com/showpost.php?p=63021396&postcount=192 works
just executing "fastboot continue" twice!
Click to expand...
Click to collapse
That would get you booting alright but it wouldn't solve anything (root cause).

[HELP] Device tampered?

It says that bootloader is unlocket but in developer options i can't even select allow OEM unlock (it turns off when i press ok)
Code:
fastboot -i 0x2b4c oem device-info
...
(bootloader) Device tampered: true
(bootloader) Device unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
OKAY [ 0.008s]
finished. total time: 0.008s
What's wrong with that? The tampered bit in the bootloader does you no harm. It just means the system partition was modified (like when you install a custom ROM).
MrColdbird said:
What's wrong with that? The tampered bit in the bootloader does you no harm. It just means the system partition was modified (like when you install a custom ROM).
Click to expand...
Click to collapse
but why can't i select oem unlock in developer options?
maryankomar said:
but why can't i select oem unlock in developer options?
Click to expand...
Click to collapse
It says it's unlocked!
Just checked on the numbers of your account. I suggest you go and do a lot of reading about what you are doing

OnePlus Two - Unable to unlock OEM

Hello all,
I recently bought a OnePlus 2 and attempted to root it. I can only remember trying to root it with a locked bootloader (which caused the OnePlus startup to hang). Eventually, I put the OS back in. Now, in a second attempt to root my phone, the first step was to unlock the bootloader. Every time I type "fastboot oem unlock" it brings me back to TWRP. When boot back into fastboot and check device info, I get this:
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Device is_verified: false
(bootloader) Charger screen enabled: false
(bootloader) Display panel:
(bootloader) console_locked: 1
(bootloader) exec_console_unconsole: 0
OKAY [ 0.070s]
finished. total time: 0.070s
Also, attempting to flash any recovery (or any other command) returns this:
target reported max download size of 536870912 bytes
sending 'recovery' (22032 KB)...
OKAY [ 0.719s]
writing 'recovery'...
FAILED (remote: device is locked. Cannot flash images)
finished. total time: 0.742s
Any suggestions? I've tried searching so many different threads all over Google.
Files that I have available to use: stock recovery, TWRP recovery, latest full ROM from OPT
Follow this guide:
https://forums.oneplus.net/threads/...wrp-root-nandroid-efs-backup-and-more.345478/
I already tried this guide. The phone is fully functional. I just cannot unlock the bootloader.
Every time I type "fastboot oem unlock" it brings me back to TWRP.
Click to expand...
Click to collapse
How did you install TWRP if the bootloader is locked? Did you install TWRP previously and re-lock the bootloader?
I have no idea. I think so. But it's fine I somehow managed to unlock the bootloader (finally). I just found out that OxygenOS 3.1.0 doesn't allow root.

Please help - official OTA Nougat update has left phone in boot loop

Hi, I recently downloaded the OTA Nougat update for the Moto G4 phone but instead of completing the process it showed the android man on his side suggesting something went wrong. I tried to restart the phone and it would not boot up, instead being stuck in a boot loop. I have read many videos in an attempt to try and get the phone working again on stock firmware but everything I read seems to have the requirement that USB debugging has been enabled in the Developer settings.
Unfortunately this was not something I enabled as I did not envisage there being any kind of problem with the update as it was the official OTA update of Nougat. I have downloaded what I believe to be the official marshmallow stock firmware for my phone which is the athene_13mp XT1622 16gb P2A variant but I can't figure out how I can install it. When on the bootloader screen on the phone, when I type 'adb devices' on the command prompt no device is listed, however if I type 'fastboot devices' it does list the serial number of my phone followed by the word 'fastboot'. Could anyone be kind enough to point me in the right direction of what I can do from here (if anything). I tried a live chat with someone from Lenovo support and they were absolutely useless.
Apologies if this is answered elsewhere, I tried a search and couldn't find anything to help me.
Thank you
adavies said:
Hi, I recently downloaded the OTA Nougat update for the Moto G4 phone but instead of completing the process it showed the android man on his side suggesting something went wrong. I tried to restart the phone and it would not boot up, instead being stuck in a boot loop. I have read many videos in an attempt to try and get the phone working again on stock firmware but everything I read seems to have the requirement that USB debugging has been enabled in the Developer settings.
Unfortunately this was not something I enabled as I did not envisage there being any kind of problem with the update as it was the official OTA update of Nougat. I have downloaded what I believe to be the official marshmallow stock firmware for my phone which is the athene_13mp XT1622 16gb P2A variant but I can't figure out how I can install it. When on the bootloader screen on the phone, when I type 'adb devices' on the command prompt no device is listed, however if I type 'fastboot devices' it does list the serial number of my phone followed by the word 'fastboot'. Could anyone be kind enough to point me in the right direction of what I can do from here (if anything). I tried a live chat with someone from Lenovo support and they were absolutely useless.
Apologies if this is answered elsewhere, I tried a search and couldn't find anything to help me.
Thank you
Click to expand...
Click to collapse
First of all, "adb devices" doesn't work on the bootloader. The adb app only works in recovery or while booted into the system. Secondly, is your bootloader unlocked? How you proceed depends on that. If you still want to install Nougat there are a couple of options. Let me know your current bootloader status. Above all, don't panic and do something rash.
Here is a link to your phone's stock firmware" https://www.filefactory.com/file/5c...24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml.zip
Hi, thank you for your reply. On the bootloader screen it says :
AP Fastboot Flash Mode (Secure)
BL: B0.0E(*) (sha-4986429, 2016-04-13 14:23:47)
Baseband: M8952_70009.08.03.48R ATHENE_EMEA_CUST
Product/Variant: athene_13mp XT1622 16GB P2A
Serial Number : (is it safe to post this here? Is it needed?)
CPU: MSM8952
eMMC: 16GB SKHYNIX HAG4a2 RV=08 PV=E4 FV=00000000000000E4
DRAM: 2GB SKHYNIX LP3 DIE=8GB M5=06 M6=03 M7=00 M8=1F
Console (NULL): null
Battery OK
oem_locked
Software status: Official
Transfer Mode: USB Connected
Not sure if you need all the info, the only thing I left off was the serial number as I don't think you need that. As you can see the OEM is locked and as I can't boot up the phone I don't know another way to unlock it. Just an update to this as well. Since my original post I followed a guide on YouTube to try and use something called 'Minimal ADB and Fastboot' and it seemed like it was running through the process of installing all the files as lots of data was passing through the CMD window but when it finished the phone just went back to the green Android man fallen over with 'No command.
Thanks again for any help you can ofer, it is really appreciated.
Also thank you for the link to the firmware, I just checked and this is the same file that I already downloaded so I do at least have peace of mind that I selected the right one.
Your phone is probably fixed already. Try to boot with Vol- pressed to enter the bootloader and then select the option that boots to system (not recovery). Recovery screen with "no command" simply means that the "boot to recovery" flag is set and there is no OTA file in phone's memory. After booting once selecting the correct option in the bootloader screen your phone will be back to normal.
_wyrm said:
Your phone is probably fixed already. Try to boot with Vol- pressed to enter the bootloader and then select the option that boots to system (not recovery). Recovery screen with "no command" simply means that the "boot to recovery" flag is set and there is no OTA file in phone's memory. After booting once selecting the correct option in the bootloader screen your phone will be back to normal.
Click to expand...
Click to collapse
Hi, thanks for your reply, sadly I have tried all the options from the bootloader with no success, they do the following:
START - tries to reboot (white screen with blue moto logo) and eventually comes back to android man fallen over with 'No command' underneath
RESTART BOOTLOADER - Just takes me back to the same bootloader screen immediately
RECOVERY MODE - Takes me back to android man fallen over with 'No command' underneath
POWER OFF - turns it off (obviously lol)
FACTORY MODE - tries to reboot (white screen with blue moto logo) and eventually comes back to android man fallen over with 'No command' underneath
BARCODES - displays white screen with four barcodes relating to IMEI, SKU, DATE and SERIAL NUMBER
BP TOOLS - tries to reboot (white screen with blue moto logo) and eventually comes back to android man fallen over with 'No command' underneath
QCOM - tries to reboot (white screen with blue moto logo) and eventually comes back to android man fallen over with 'No command' underneath
BOOTLOADER LOGS - Doesn't do anything when I click the power button on this option but shows some yellow text on the screen that says 'Fastboot reason: Volume down key pressed'
That is all the options I have then, none seem to resolve the problem.
Thank you
Also, I'm not sure if this is relevant but when I ran the flashstock.bat file to try and install the files from XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml, I noticed as the text scrolled up the CMD window that there was several mentions of:
slot count not found
slot suffixes not found
has-slot system not found
invalid signed image
These lines appear several times, I'm not sure if this is part of the problem or not. If the CMD window didn't automatically close I would have copied and pasted exactly what it says.
Thanks again
Open a command prompt instead of double clicking the bat file. Also make sure you have motorola adb drivers installed, or use motorola's flash tool, RSDLITE, instead of flashing with the bat file.
adavies said:
Hi, thank you for your reply. On the bootloader screen it says :
AP Fastboot Flash Mode (Secure)
BL: B0.0E(*) (sha-4986429, 2016-04-13 14:23:47)
Baseband: M8952_70009.08.03.48R ATHENE_EMEA_CUST
Product/Variant: athene_13mp XT1622 16GB P2A
Serial Number : (is it safe to post this here? Is it needed?)
CPU: MSM8952
eMMC: 16GB SKHYNIX HAG4a2 RV=08 PV=E4 FV=00000000000000E4
DRAM: 2GB SKHYNIX LP3 DIE=8GB M5=06 M6=03 M7=00 M8=1F
Console (NULL): null
Battery OK
oem_locked
Software status: Official
Transfer Mode: USB Connected
Not sure if you need all the info, the only thing I left off was the serial number as I don't think you need that. As you can see the OEM is locked and as I can't boot up the phone I don't know another way to unlock it. Just an update to this as well. Since my original post I followed a guide on YouTube to try and use something called 'Minimal ADB and Fastboot' and it seemed like it was running through the process of installing all the files as lots of data was passing through the CMD window but when it finished the phone just went back to the green Android man fallen over with 'No command.
Thanks again for any help you can ofer, it is really appreciated.
Click to expand...
Click to collapse
TRY THIS BEFORE DOING ANYTHING ELSE: Boot to recovery. While at the dead robot, while holding down the Power key, press and release*the Volume Up key, then release Power.. This takes you into the actual recovery menu. scroll to "wipe data/ factory reset". Then do a factory reset and reboot. It may go ahead and complete your attempt to install Nougat.
[/B]When you are at the bootloader, do you still get your device serial number at the command "Fastboot devices" from your pc? If so you can unlock your bootloader if you so desire. Link to unlock instructions: https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
If you can't get flashstock.bat to work then you can flash your stock ROM. in the sequence below. You will need to extract the ROM to your PC and follow the instructions below:
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 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 modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot erase customize
fastboot oem config carrier vzw
fastboot oem fb_mode_clear
Also, you don't ever need to share your serial number. Finally, the baseband shown is the original Marshmallow stock baseband which tells me that your attempt to flash Nougat failed.
If you have doubts or questions ask first.
---------- Post added at 06:02 PM ---------- Previous post was at 05:33 PM ----------
Alternative if you really want Nougat. Works without unlocking bootloader:
https://forum.xda-developers.com/moto-g4-plus/how-to/android-7-0-install-nougat-official-t3531612
_wyrm said:
Open a command prompt instead of double clicking the bat file. Also make sure you have motorola adb drivers installed, or use motorola's flash tool, RSDLITE, instead of flashing with the bat file.
Click to expand...
Click to collapse
Hi, thank you for your reply, I just downloaded and tried the RSD Lite software. It detected my phone on Port number 1 as 'Fastboot athene_13mp S' and I selected the 'flashfile.xml' and pressed start. Unfortunately it stopped with the status 'Failed flashing process. 3/27 flash partition "gpt.bin" -> Phone returned FAIL.' Does anyone know how to get round this?
Thank you
pastorbob62 said:
TRY THIS BEFORE DOING ANYTHING ELSE: Boot to recovery. While at the dead robot, while holding down the Power key, press and release*the Volume Up key, then release Power.. This takes you into the actual recovery menu. scroll to "wipe data/ factory reset". Then do a factory reset and reboot. It may go ahead and complete your attempt to install Nougat.
]
Click to expand...
Click to collapse
Thanks for your assistance, I have tried wiping the data and doing a factory reset but it still fails to boot unfortunately.
adavies said:
Thanks for your assistance, I have tried wiping the data and doing a factory reset but it still fails to boot unfortunately.
Click to expand...
Click to collapse
Did you manually flash the fastboot images in the sequence provided?
If that doesn't work, I would send it back to Motorola. If it isn't in warranty, well, rip.
pastorbob62 said:
TRY THIS BEFORE DOING ANYTHING ELSE: Boot to recovery. While at the dead robot, while holding down the Power key, press and release*the Volume Up key, then release Power.. This takes you into the actual recovery menu. scroll to "wipe data/ factory reset". Then do a factory reset and reboot. It may go ahead and complete your attempt to install Nougat.
[/B]When you are at the bootloader, do you still get your device serial number at the command "Fastboot devices" from your pc? If so you can unlock your bootloader if you so desire. Link to unlock instructions: https://motorola-global-portal.custhelp.com/app/standalone/bootloader/unlock-your-device-a
If you can't get flashstock.bat to work then you can flash your stock ROM. in the sequence below. You will need to extract the ROM to your PC and follow the instructions below:
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 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 modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot erase customize
fastboot oem config carrier vzw
fastboot oem fb_mode_clear
Also, you don't ever need to share your serial number. Finally, the baseband shown is the original Marshmallow stock baseband which tells me that your attempt to flash Nougat failed.
If you have doubts or questions ask first.
---------- Post added at 06:02 PM ---------- Previous post was at 05:33 PM ----------
Alternative if you really want Nougat. Works without unlocking bootloader:
https://forum.xda-developers.com/moto-g4-plus/how-to/android-7-0-install-nougat-official-t3531612
Click to expand...
Click to collapse
I do still get the serial number when running 'fastboot devices', do you think unlocking the bootloader might be the answer? I went through te steps yesterday to get the code, was a little put off by voiding the warranty though. With regards to running the commands one at a time, I think I am now getting a bit confused on the correct procedure of where to run the commands from. I have tried running it from the folder for 'Minimal ADB and fastboot' (this folder contains all the files from the stock firmware folder as well which I copied and pasted in there) and also directly from the stock firmware folder itself. I will paste the results of each below (sorry to confuse the issue, my head is fried now, lol).
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot devices
ZY223H6QF4 fastboot
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem fb_mode_set
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
OKAY [ 0.005s]
finished. total time: 0.006s
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot flash partition gpt.bin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
(bootloader) has-slotartition: not found
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.016s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.049s
C:\Program Files (x86)\Minimal ADB and Fastboot>
I stopped after the second line as the text above suggests to me that part has failed so no point continuing. When running directly from the firmware folder I get the following :
C:\Users\andrew\Desktop\XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml>fastboot devices
ZY223H6QF4 fastboot
C:\Users\andrew\Desktop\XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml>fastboot oem fb_mode_set
...
OKAY [ 0.005s]
finished. total time: 0.006s
C:\Users\andrew\Desktop\XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml>fastboot flash partition gpt.bin
target reported max download size of 536870912 bytes
sending 'partition' (32 KB)...
OKAY [ 0.008s]
writing 'partition'...
(bootloader) Security version downgrade
(bootloader) Image primary_gpt failed validation
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.062s
C:\Users\andrew\Desktop\XT1621-XT1622-XT1642_ATHENE_MPJ24.139-23.4_cid50_subsidy-DEFAULT_CFC.xml>
Again this seems to fail also but with some slightly different messages. Interesting that it failed on the gpt.bin part as this was also mentioned when it failed on RSD Lite.
If the firmware is Android 6 and you at some point flashed Android 7 (or tried to), then its safe to edit the .xml file and remove the reference to gpt.bin, and start the flashing proccess again. This error happens when you try to downgrade the phone firmware.
_wyrm said:
If the firmware is Android 6 and you at some point flashed Android 7 (or tried to), then its safe to edit the .xml file and remove the reference to gpt.bin, and start the flashing proccess again. This error happens when you try to downgrade the phone firmware.
Click to expand...
Click to collapse
Yes this whole problem started when I used the phone to check if there were any updates. It said that the Nougat update was available and so I downloaded it on the phone and pressed the button on the phone to install it. This then failed and was the start of all my problems.
I have edited the 'flashfile.xml' file and removed the line <step MD5="e12b1a18da98b9502c735ce6ca192217" filename="gpt.bin" operation="flash" partition="partition"/>, however, it then failed with the message 'Failed flashing process. 5/26 flash boot "boot.img" -> Phone returned FAIL'. Any ideas please?
Thank you
adavies said:
Yes this whole problem started when I used the phone to check if there were any updates. It said that the Nougat update was available and so I downloaded it on the phone and pressed the button on the phone to install it. This then failed and was the start of all my problems.
I have edited the 'flashfile.xml' file and removed the line <step MD5="e12b1a18da98b9502c735ce6ca192217" filename="gpt.bin" operation="flash" partition="partition"/>, however, it then failed with the message 'Failed flashing process. 5/26 flash boot "boot.img" -> Phone returned FAIL'. Any ideas please?
Thank you
Click to expand...
Click to collapse
As long as you can still access the bootloader there is still hope. Did you go through with the entire procedure to unlock your bootloader? If so, can you flash a custom recovery such as TWRP 3.1.0? (fastboot flash recovery "name of the recovery file") After you have done that you can flash any custom ROM you desire.
Also, I suggest you take some time to read through the forums for both the G4 and the G4+. It is obvious from your questions that you haven't done so. There are solutions posted that WILL work for you but you MUST take the time to research and read. Doing so will save a lot of time and keep you from bricking your phone.
adavies said:
Yes this whole problem started when I used the phone to check if there were any updates. It said that the Nougat update was available and so I downloaded it on the phone and pressed the button on the phone to install it. This then failed and was the start of all my problems.
I have edited the 'flashfile.xml' file and removed the line <step MD5="e12b1a18da98b9502c735ce6ca192217" filename="gpt.bin" operation="flash" partition="partition"/>, however, it then failed with the message 'Failed flashing process. 5/26 flash boot "boot.img" -> Phone returned FAIL'. Any ideas please?
Thank you
Click to expand...
Click to collapse
AFAIK, this one isnt safe to skip.. Im out of ideas, sorry. Try another usb cable just in case.. but if it keeps failing at the same point you will probably need to send it to motorola service.
pastorbob62 said:
As long as you can still access the bootloader there is still hope. Did you go through with the entire procedure to unlock your bootloader? If so, can you flash a custom recovery such as TWRP 3.1.0? (fastboot flash recovery "name of the recovery file") After you have done that you can flash any custom ROM you desire.
Also, I suggest you take some time to read through the forums for both the G4 and the G4+. It is obvious from your questions that you haven't done so. There are solutions posted that WILL work for you but you MUST take the time to research and read. Doing so will save a lot of time and keep you from bricking your phone.
Click to expand...
Click to collapse
Hi, I did not go through the entire procedure to unlock the bootloader because I'm not sure that I can. Every guide I have read about this says about enabling developer options so that I can 'Allow OEM unlock' but I can't do that if I can't turn the phone on .
This is how far I get (I removed the actual unlock code as I don't know if that should remain confidential):
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot devices
ZY223H6QF4 fastboot
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get_unlock_data
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
(bootloader) Unlock data:
(bootloader) 3A45210207590559#
(bootloader) 5A593232334836514634004D6F746F2047200000#
(bootloader) 8470D59C544F993609337B23DD2E2F5ACA719924#
(bootloader) 09900801000000000000000000000000
OKAY [ 0.114s]
finished. total time: 0.116s
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock UNLOCK CODE WAS HERE
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
(bootloader) WARNING: This command erases all user data.
(bootloader) Please re-run this command to continue.
OKAY [ 0.011s]
finished. total time: 0.012s
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock UNLOCK CODE WAS HERE
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
(bootloader) Check 'Allow OEM Unlock' in Android Settings > Developer
(bootloader) Options
OKAY [ 0.012s]
finished. total time: 0.013s
C:\Program Files (x86)\Minimal ADB and Fastboot>
adavies said:
Hi, I did not go through the entire procedure to unlock the bootloader because I'm not sure that I can. Every guide I have read about this says about enabling developer options so that I can 'Allow OEM unlock' but I can't do that if I can't turn the phone on .
This is how far I get (I removed the actual unlock code as I don't know if that should remain confidential):
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot devices
ZY223H6QF4 fastboot
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem get_unlock_data
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
(bootloader) Unlock data:
(bootloader) 3A45210207590559#
(bootloader) 5A593232334836514634004D6F746F2047200000#
(bootloader) 8470D59C544F993609337B23DD2E2F5ACA719924#
(bootloader) 09900801000000000000000000000000
OKAY [ 0.114s]
finished. total time: 0.116s
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock UNLOCK CODE WAS HERE
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
(bootloader) WARNING: This command erases all user data.
(bootloader) Please re-run this command to continue.
OKAY [ 0.011s]
finished. total time: 0.012s
C:\Program Files (x86)\Minimal ADB and Fastboot>fastboot oem unlock UNLOCK CODE WAS HERE
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
...
(bootloader) Check 'Allow OEM Unlock' in Android Settings > Developer
(bootloader) Options
OKAY [ 0.012s]
finished. total time: 0.013s
C:\Program Files (x86)\Minimal ADB and Fastboot>
Click to expand...
Click to collapse
If a redownload of the stock images and a new USB cable and flashing of the images doesn't work, I'd just send it back to Motorola.
negusp said:
If a redownload of the stock images and a new USB cable and flashing of the images doesn't work, I'd just send it back to Motorola.
Click to expand...
Click to collapse
You may be right. He has not successfully unlocked the phone so therefore his warranty should still be good.
---------- Post added at 04:18 PM ---------- Previous post was at 03:51 PM ----------
adavies said:
Hi, I did not go through the entire procedure to unlock the bootloader because I'm not sure that I can. Every guide I have read about this says about enabling developer options so that I can 'Allow OEM unlock' but I can't do that if I can't turn the phone on .
I don't understand why you can't flash the stock ROM. Your baseband version is still on stock. That said if you want to continue trying give this a shot: https://forum.xda-developers.com/moto-g4-plus/how-to/xt1643-ota-nougat-t3483943 This will bring you up to Nougat the latest release. It does not require an unlocked bootloader and has been used on your model.
Or here: https://forum.xda-developers.com/moto-g4-plus/how-to/xt1644-stock-marshmallow-to-nougat-t3540022
Otherwise I would go ahead and do a warranty return. Your warranty should still be okay since you did not go through with unlocking the bootloader.
Click to expand...
Click to collapse

Re-locking bootloader but is unlocked at each reboot

Hi everyone,
I went back to stock recovery and stock ROM (5.9.020S) in order to use Android Pay.
But I am facing one last issue for locking the device. Each time I go into fast boot mode, I lock the device, I check with device-info, it confirms it is locked. However after reboot I check again it has reverted back as unlocked.
How can I lock the persistently?
It is as if there is a script somewhere at boot that automatically unlock the device bootloader.
- flash the aboot from stock ROM
- flash the xbl from stock ROM
- do not reboot to keep the bootloader still unlocked
- boot in TWRP (do not flash)
- wipe, factory reset, format, reboot system
In order to do what you suggest, I flashed TWRP recovery first. Then I followed all the steps. Then I tried to flash the stock recovery back and tried to lock. Unfortunately, it did not help, still the same issue.
In fastboot, I do "fastboot flashing lock" or "fastboot oem lock". Then I check the status with "fastboot oem device-info". Right after, I always get "Device unlocked: false" which is good and confirm the lock has worked at first.
But if I reboot the bootloader and try again, then the status is back to "Device unlocked: true" and the device is unlocked again. It keeps unlocking after reboot if I attempt to lock.
I need to have the device NOT unlocked in order to use Android Pay. So now, I am not sure what to do to be able to lock the device...
You don't need to flash TWRP in fact sometimes you don't need it (if there is no encryption but do it to be sure) right after flashing
fastboot flash xbl xbl.elf
fastboot flash aboot emmc_appsboot.mbn
These were indeed the files I flashed previously for aboot and xbl.
I tried again to flash the files in fastboot mode, then lock the device with "fastboot oem lock". After reboot, it is unlocked again.
Did you extract those files from 20s or any official OTA zip? Flashing those files are guaranteed to lock the bootloader again. I've tried it many times already so not sure what else could be missing.
What is being displayed when you do right after the flashing and TWRP steps?
Like this?
fastboot oem device-info
...
(bootloader) Device product name: [le_zl1_oversea]
(bootloader) Device tampered: false
(bootloader) Device unlocked: false
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Serial console enabled: false
(bootloader) Serial hw output enabled: false
(bootloader) Display panel:
OKAY [ 0.097s]
finished. total time: 0.098s
---------- Post added at 02:39 PM ---------- Previous post was at 02:37 PM ----------
See this thread if it will help...
https://forum.xda-developers.com/le-pro3/how-to/guide-return-to-stock-lock-bootloader-t3539513
I got the files from 20S. It really does not work for me.
I do:
fastboot flash xbl xbl.elf
fastboot flash aboot emmc_appsboot.mbn
Click to expand...
Click to collapse
After this when I check, it is like this (before and after reboot):
(bootloader) Device product name: [le_zl1_whole_netcom]
(bootloader) Device tampered: false
(bootloader) Device unlocked: true
(bootloader) Device critical unlocked: true
(bootloader) Charger screen enabled: false
(bootloader) Serial console enabled: false
(bootloader) Serial hw output enabled: false
(bootloader) Display panel:
OKAY [ 0.110s]
finished. total time: 0.111s
Click to expand...
Click to collapse
Anyway, thanks for trying to help me!

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