Trying to root, can't boot into recovery - Moto G 2015 Q&A, Help & Troubleshooting

This is my fourth failed attempt to do anything custom with an android phone (yes, 4 different phones). Why is it so hard?
I'm following some nice instructions from teamandroid.com, but I can't get into recovery. Either I get "no command", or if I flash and go into recovery right away while connected, I get "Error: failed to load kernel!"
I wasn't able to flash TWRP ("Image size exeeded partition limits") but clockwork-6.0.4.7-falcon seemed to work. Just can't boot into it. I don't know what else to try, I don't know why it doesn't work.
Can anyone help me? Just trying to root my Moto G 2015 for development purposes. thanks so much.

rmp251 said:
This is my fourth failed attempt to do anything custom with an android phone (yes, 4 different phones). Why is it so hard?
I'm following some nice instructions from teamandroid.com, but I can't get into recovery. Either I get "no command", or if I flash and go into recovery right away while connected, I get "Error: failed to load kernel!"
I wasn't able to flash TWRP ("Image size exeeded partition limits") but clockwork-6.0.4.7-falcon seemed to work. Just can't boot into it. I don't know what else to try, I don't know why it doesn't work.
Can anyone help me? Just trying to root my Moto G 2015 for development purposes. thanks so much.
Click to expand...
Click to collapse
I assume your talking about this guide: http://www.teamandroid.com/2015/10/02/root-moto-g-2015-on-android-5-1-lollipop-with-supersu/
It is an OK guide, but you really have to read the details... did you unlock via the Motorola Bootloader Unlock page? Nothing will work properly until you do.

Yes that's the guide (xda didn't let me post the link). Yes I did unlock that way. I'm trying to follow all of the details and I don't think I've missed anything (hence my frustration).

http://forum.xda-developers.com/showthread.php?t=3188850

Thank you hp420! This is what worked for me:
fastboot boot twrp-osprey-2.8.7-test1.img

What helps you ... Can u please explain that... I have a same issue with moto g4 plus... Failed to load kernel....

Vishaly634 said:
What helps you ... Can u please explain that... I have a same issue with moto g4 plus... Failed to load kernel....
Click to expand...
Click to collapse
Kind of digging up an old thread here, what is the problem you are having and what process are you using? TBH, this is pretty simple but you need the TWRP specific to your device and just flash Magisk.

Moto g4 plus root problem..,
After installing twrp.img with mfastboot while I enter in recovery mode after few seconds it shows u need software repair assistant and final shows failed to load kernel.... Can u help me with this....I m totally confused: I Hove no idea what to do now...
..In red ....It shows..
Start up failed:
Your device didn't start up successfully.
Use the software repair assistant on computer
To repair your device.
Connect your device to your computer to get the software repair assistant.
IN RED - AP Fastboot flash mode (secure)
In green - Fastboot reason: volume down key pressed
USB connected
.....
......
In red - failed to load kernel !
Boot up failed
This is what shows up after I enter into recovery mode
...Please help me to root my devices...And reply fast

Vishaly634 said:
After installing twrp.img with mfastboot while I enter in recovery mode after few seconds it shows u need software repair assistant and final shows failed to load kernel.... Can u help me with this....I m totally confused: I Hove no idea what to do now...
..In red ....It shows..
Start up failed:
Your device didn't start up successfully.
Use the software repair assistant on computer
To repair your device.
Connect your device to your computer to get the software repair assistant.
IN RED - AP Fastboot flash mode (secure)
In green - Fastboot reason: volume down key pressed
USB connected
.....
......
In red - failed to load kernel !
Boot up failed
This is what shows up after I enter into recovery mode
...Please help me to root my devices...And reply fast
Click to expand...
Click to collapse
Flash the factory image... There are threads for the software and how to do it.

How to flash the factory image.... Can you please tell me in detail...Which thread ??? How to do it..

Vishaly634 said:
How to flash the factory image.... Can you please tell me in detail...Which thread ??? How to do it..
Click to expand...
Click to collapse
There is literally two threads in general... One is for factory firmware images, and one is how to flash factory firmware images. I am not going to spoon-feed you the answer just because you won't look. Find the threads, read a bit, and try it, if you have issues post in the appropriate thread.

Related

[Q] razr i xt890 stuck in recovery mode

help,like a noob i tried to root my razr i xt890,now it powers up into a boot mode that says normal power up,recovery,factory,bp tools,switch console,power off,what ever i choose apart from power off it just hangs,please help,i feel such a idiot much to the delight of my wife!
pag1967 said:
help,like a noob i tried to root my razr i xt890,now it powers up into a boot mode that says normal power up,recovery,factory,bp tools,switch console,power off,what ever i choose apart from power off it just hangs,please help,i feel such a idiot much to the delight of my wife!
Click to expand...
Click to collapse
Sounds like you have corrupted your boot file. If this is the case, its a simple fix. Extract the image from the attached file to the directory where you have fastboot installed, and then issue
Code:
fastboot flash boot razr_i_boot.img
Hope this helps.
fast boot?
Drew2k said:
Sounds like you have corrupted your boot file. If this is the case, its a simple fix. Extract the image from the attached file to the directory where you have fastboot installed, and then issue
Code:
fastboot flash boot razr_i_boot.img
Hope this helps.
Click to expand...
Click to collapse
thanks for the help,the problem is my computer wont connect to phone and i dont have fastboot,should have left the thing alone,if anyone can give me details that a noob can understand i would be forever in your debt
pag1967 said:
thanks for the help,the problem is my computer wont connect to phone and i dont have fastboot,should have left the thing alone,if anyone can give me details that a noob can understand i would be forever in your debt
Click to expand...
Click to collapse
How have you tried rooting your phone. Did you try flashing the zip file via recovery mode, or did you use the RAZRi_Root_Windows?
If you use tried flashing via recovery mode, then you will need to download the fastboot program. Try searching XDA for RAZRi_Root_Windows, or download the Android SDK.
If you tried using RAZRi_Root_Windows, then this includes fastboot, and the recovery image i included above.
Just open command prompt on your PC, and change the the directory that has the fastboot program located. Then, while your phones in boot mode, execute
Code:
fastboot flash boot razr_i_boot.img
thanks
Drew2k said:
How have you tried rooting your phone. Did you try flashing the zip file via recovery mode, or did you use the RAZRi_Root_Windows?
If you use tried flashing via recovery mode, then you will need to download the fastboot program. Try searching XDA for RAZRi_Root_Windows, or download the Android SDK.
If you tried using RAZRi_Root_Windows, then this includes fastboot, and the recovery image i included above.
Just open command prompt on your PC, and change the the directory that has the fastboot program located. Then, while your phones in boot mode, execute
Code:
fastboot flash boot razr_i_boot.img
Click to expand...
Click to collapse
thanks for the help,some one who knows what they are doing is looking at the phone,i will pass your advice on,thanks again
same problem here
pag1967 said:
thanks for the help,some one who knows what they are doing is looking at the phone,i will pass your advice on,thanks again
Click to expand...
Click to collapse
Drew2k ,
I have the same problem, and i did what you said but my phone shows the message:
Downloading...
Failed to hab check for boot: 0x56
preflash validation failed for boot
Fastboot comanded failed
What can I do???
Thanks
caiotmoraes said:
Drew2k ,
I have the same problem, and i did what you said but my phone shows the message:
Downloading...
Failed to hab check for boot: 0x56
preflash validation failed for boot
Fastboot comanded failed
What can I do???
Thanks
Click to expand...
Click to collapse
I've the same problem. Did you found any answer for this problem??
Drew2k said:
How have you tried rooting your phone. Did you try flashing the zip file via recovery mode, or did you use the RAZRi_Root_Windows?
If you use tried flashing via recovery mode, then you will need to download the fastboot program. Try searching XDA for RAZRi_Root_Windows, or download the Android SDK.
If you tried using RAZRi_Root_Windows, then this includes fastboot, and the recovery image i included above.
Just open command prompt on your PC, and change the the directory that has the fastboot program located. Then, while your phones in boot mode, execute
Code:
fastboot flash boot razr_i_boot.img
Click to expand...
Click to collapse
i opened the prompt screen..reach the directory..founde the image..but nothing happnes??!! for sure i'm donign something wrong but why!!!!???
The same thing bro!! anyone help
pag1967 said:
help,like a noob i tried to root my razr i xt890,now it powers up into a boot mode that says normal power up,recovery,factory,bp tools,switch console,power off,what ever i choose apart from power off it just hangs,please help,i feel such a idiot much to the delight of my wife!
Click to expand...
Click to collapse
I did the same thing try to root it did not unlock the boot looder & now my razr I is stuck and whe n i select any option it says fastboot menu disable. MY PHONE SCREEN :
Ap Fastboot Flash Mode (secure boot )
20.0D (sha-0ba4df3)
IFWI Info: 42.19
eMMC Info: Size 8Gb
Barcode: TA23704WS6
Battery (Okay): 3.85v (temp 42.0)
Connect Usb Data Cable
ROM-Key: Motorola-Key
Boot Mode Selection Menu
(Vo1 up selects. Vo1 Down Scrolls)
Normal Powerup
Recovery
Factory
BP Tools
Switch console [default:null]
Power Off
Fastboot Reason : Flash Failure
Fastboot: max download size: 100MB
_______________________________________________________________________________________________________________________
I know I should have left it alone.
If you can help me please give me easy to follow instructions since well Im a complete noob
Thanks in Advance
My email is [email protected]
My phone revive
black42 said:
I did the same thing try to root it did not unlock the boot looder & now my razr I is stuck and whe n i select any option it says fastboot menu disable. MY PHONE SCREEN :
Ap Fastboot Flash Mode (secure boot )
20.0D (sha-0ba4df3)
IFWI Info: 42.19
eMMC Info: Size 8Gb
Barcode: TA23704WS6
Battery (Okay): 3.85v (temp 42.0)
Connect Usb Data Cable
ROM-Key: Motorola-Key
Boot Mode Selection Menu
(Vo1 up selects. Vo1 Down Scrolls)
Normal Powerup
Recovery
Factory
BP Tools
Switch console [default:null]
Power Off
Fastboot Reason : Flash Failure
Fastboot: max download size: 100MB
_______________________________________________________________________________________________________________________
I know I should have left it alone.
If you can help me please give me easy to follow instructions since well Im a complete noob
Thanks in Advance
My email is [email protected]
Click to expand...
Click to collapse
Hey guys I got my phone back I opend rsd lite v6.1.4 and i restored it with: 8.7.1I-110_SML-13_BRLATAM_SCPNMINIICLABRLA_S1FF_fb.xml
bootlooader hope this helps thanks aniway
Can't flash it
black42 said:
Hey guys I got my phone back I opend rsd lite v6.1.4 and i restored it with: 8.7.1I-110_SML-13_BRLATAM_SCPNMINIICLABRLA_S1FF_fb.xml
bootlooader hope this helps thanks aniway
Click to expand...
Click to collapse
Got the same issue but with no luck. My RSD Lite keeps saying error on every file i try to flash. mine all of them end up in .xml.zip any ideas??

[Q] bad flash

Hi i have rooted and flashed the phone it got stuck on the htc screen so i tried factory reset bad idea now my phone will just go into the bootlader menu i can enable fastboot usb but it dont show up on computer but the computer makes a noise to say ive connected it i cant enable usb debugging because the phone wont come on i have tried to flash another boot img through fastboot with no luck im hoping its not bricked
please any help would be appreciated thanks
pl4yb0y78 said:
Hi i have rooted and flashed the phone it got stuck on the htc screen so i tried factory reset bad idea now my phone will just go into the bootlader menu i can enable fastboot usb but it dont show up on computer but the computer makes a noise to say ive connected it i cant enable usb debugging because the phone wont come on i have tried to flash another boot img through fastboot with no luck im hoping its not bricked
please any help would be appreciated thanks
Click to expand...
Click to collapse
Hmm. so you probably need to flash a recovery first.
then you will be able to use the recovery to mount usb and put a new rom on your "sd card"
Then you can flash the rom on your new recovery and don't forget to fastboot flash the boot.img.
edit: the all in one toolkit is great for things like this. It will put a new recovery on your phone with just a click of the button.
http://forum.xda-developers.com/showthread.php?t=1604677
tivofool said:
Hmm. so you probably need to flash a recovery first.
then you will be able to use the recovery to mount usb and put a new rom on your "sd card"
Then you can flash the rom on your new recovery and don't forget to fastboot flash the boot.img.
Click to expand...
Click to collapse
Thanks for the reply but i dont know how to do this ?
could you please explain it ?
pl4yb0y78 said:
Thanks for the reply but i dont know how to do this ?
could you please explain it ?
Click to expand...
Click to collapse
I just edited my original post. just in case you didn't know how. I guess I was a little slow.
Also I can't remember if a bootloader factory reset relocked your phone but you might want to check that too. up on top it would say locked or relocked. If it still says unlocked you don't have to do that step again. Like you did when you first rooted the phone.
(all in one tool kit is great for unlocking and relocking too) just put a copy of that bin file in all in one tool kit (data file i believe, but it says what to do in that thread)
tivofool said:
I just edited my original post. just in case you didn't know how. I guess I was a little slow.
Also I can't remember if a bootloader factory reset relocked your phone but you might want to check that too. up on top it would say locked or relocked. If it still says unlocked you don't have to do that step again. Like you did when you first rooted the phone.
(all in one tool kit is great for unlocking and relocking too) just put a copy of that bin file in all in one tool kit (data file i believe, but it says what to do in that thread)
Click to expand...
Click to collapse
hi i have got the tool kit run twrp s3 now i have a black htc logo screen on what next
pl4yb0y78 said:
hi i have got the tool kit run twrp s3 now i have a black htc logo screen on what next
Click to expand...
Click to collapse
Your phone is an s3?
My phone is an S4 as are I would guess the majority of users. I think the s3 is the international version. If you are on T mobile then it's a s4.
Ok,,,
so .... if your phone is an s3 version then you will have to check that the Rom you download is specific for your phone as most of the Roms on this site are for the s4 version.
you need to go to your recovery. press the volume down button and hold it. Then press the power button (don't hold it). That will get you to recovery.
when in twrp recovery you will see a mounts button. hit that then the next screen will have mount usb. then you will be able to move a rom you downloaded on your computer to your phone.
then you can install the rom zip in twrp.
then from your computer, I assume you know how to flash a boot.img
put a boot.img in your fastboot folder, open up a comand prompt.
fastboot flash boot boot.img
if you wanted a different recovery than you are using, find the download the recovery. *I would rename the recovery to recovery.img
fastboot flash recovery recovery.img
(I only mention a different recovery because in some of the Rom threads you might read that you can only install a particular rom with an older version of twrp.)
I'm not sure of your skill or experience with all of this. If you are very new to it (then you are probably really frustrated) have no fear there is a little bit to learn but not that much. Just keep reading the development thread and the guides in it.
tivofool said:
Your phone is an s3?
My phone is an S4 as are I would guess the majority of users. I think the s3 is the international version. If you are on T mobile then it's a s4.
Ok,,,
so .... if your phone is an s3 version then you will have to check that the Rom you download is specific for your phone as most of the Roms on this site are for the s4 version.
you need to go to your recovery. press the volume down button and hold it. Then press the power button (don't hold it). That will get you to recovery.
when in twrp recovery you will see a mounts button. hit that then the next screen will have mount usb. then you will be able to move a rom you downloaded on your computer to your phone.
then you can install the rom zip in twrp.
then from your computer, I assume you know how to flash a boot.img
put a boot.img in your fastboot folder, open up a comand prompt.
fastboot flash boot boot.img
if you wanted a different recovery than you are using, find the download the recovery. *I would rename the recovery to recovery.img
fastboot flash recovery recovery.img
(I only mention a different recovery because in some of the Rom threads you might read that you can only install a particular rom with an older version of twrp.)
I'm not sure of your skill or experience with all of this. If you are very new to it (then you are probably really frustrated) have no fear there is a little bit to learn but not that much. Just keep reading the development thread and the guides in it.
Click to expand...
Click to collapse
Thank you for the reply yes i am getting stressed at this and i am new had a break before i smashed the phone now ive just got to find out what my phone is s3 or s4 ? google will help
when i connect my phone to the computer in recovery or flashboot it does not let me see it so i can not put rom on the hdd
(tried restart phone no luck tried restart comy no luck, cant get it to show phone ) all drivers installed
can i use the tool kit to flash recovery ?
phone on orange uk ,is it a s4 ?
thanks for the help guys with your knowledge i will get it working i pray!
pl4yb0y78 said:
when i connect my phone to the computer in recovery or flashboot it does not let me see it so i can not put rom on the hdd
(tried restart phone no luck tried restart comy no luck, cant get it to show phone ) all drivers installed
can i use the tool kit to flash recovery ?
phone on orange uk ,is it a s4 ?
thanks for the help guys with your knowledge i will get it working i pray!
Click to expand...
Click to collapse
do you have your box the phone came in?
Z520e is S4
Z560e is S3
So were you able to put twrp on your phone? when you are in boot loader and click on the recovery does it take you to twrp? Yes the all in one toolkit will flash a recovery for you. but you have your boot loader unlocked first.
tivofool said:
do you have your box the phone came in?
Z520e is S4
Z560e is S3
So were you able to put twrp on your phone? when you are in boot loader and click on the recovery does it take you to twrp? Yes the all in one toolkit will flash a recovery for you. but you have your boot loader unlocked first.
Click to expand...
Click to collapse
yes i now have the twrp in recovery it says enter password and cancel i tried both it was the s4 one that worked so im guessing its an s4
what will the next step be? (if i need anything please could you leave a link)
thanks for all the help starting to feel i might win lol
in twrp when you press "mounts" then press "mount usb", does your computer finally see your phone?
I was looking at your first post, you say that you rooted and flashed your phone. What do you mean by that? Did you download a ROM and attempt to flash it? Or did you "fastboot flash boot boot.img"?
If you are able to access your phone via computer it is as simple as downloading a rom on your computer moving it to your phone then in twrp "install from zip". Then fastboot flash the boot.img.
http://forum.xda-developers.com/showthread.php?t=1583427
how to flash fastboot
http://forum.xda-developers.com/showthread.php?t=1752270
if you are just fed up and want your phone back to stock then you will need to run an RUU.
http://forum.xda-developers.com/showthread.php?t=2094414
To run a RUU you would need to relock your bootloader.
in console type "fastboot lock oem" or use your all in one toolkit to relock it.
if that fails you will need to put your stock recovery back. (you need to have boot loader unlocked to do this)
on the clockworkmod recovery page the stock recovery is the second download link.
http://www.modaco.com/topic/353006-...ch-recovery-for-the-htc-one-s-stock-download/
Ok i am now really confused nothing works downloaded recovery roms they wont install always says failed tried to adb sideload it after google it failed again tried 3 recovery roms all fail what is going wrong icant get it to work
so far ive put twrp on it pressed mount so i can put rom on phone worked
pressed install pressed zip failed
pressed adb sideload then start on comy sent rom 100% install failed
reeboot phone still no os
tried this 3 times different roms all failed
please help
pl4yb0y78 said:
Ok i am now really confused nothing works downloaded recovery roms they wont install always says failed tried to adb sideload it after google it failed again tried 3 recovery roms all fail what is going wrong icant get it to work
so far ive put twrp on it pressed mount so i can put rom on phone worked
pressed install pressed zip failed
pressed adb sideload then start on comy sent rom 100% install failed
reeboot phone still no os
tried this 3 times different roms all failed
please help
Click to expand...
Click to collapse
Do you know how to FASTBOOT FLASH boot.img which is present inside the ROM.ZIP?
Try wiping data, cache, dalvik. Then reinstall.
Sent from my Nexus 7 using Tapatalk HD
khan.orak said:
Do you know how to FASTBOOT FLASH boot.img which is present inside the ROM.ZIP?
Try wiping data, cache, dalvik. Then reinstall.
Sent from my Nexus 7 using Tapatalk HD
Click to expand...
Click to collapse
thanks and yes i can do that i will try and get back to you
C:\adt-bundle-windows-x86_64-20130522\sdk\platform-tools>fastboot boot boot.img
creating boot image...
creating boot image - 16779264 bytes
downloading 'boot.img'...
OKAY [ 1.890s]
booting...
FAILED (remote: reproduce boot image with on-flash ramdisk error)
finished. total time: 1.926s
this is what i get when i try tried 3 imgs
pl4yb0y78 said:
C:\adt-bundle-windows-x86_64-20130522\sdk\platform-tools>fastboot boot boot.img
creating boot image...
creating boot image - 16779264 bytes
downloading 'boot.img'...
OKAY [ 1.890s]
booting...
FAILED (remote: reproduce boot image with on-flash ramdisk error)
finished. total time: 1.926s
this is what i get when i try tried 3 imgs
Click to expand...
Click to collapse
The command is:
Code:
fastboot flash boot boot.img
khan.orak said:
The command is:
Code:
fastboot flash boot boot.img
Click to expand...
Click to collapse
ok i try this i am only learning but getting there lol

[Q] [HELP] Unable to succesfully install ANY recovery

After trying for over three hours, reading what seems like all threads on the whole of xda and some other sites... i am ready to eat my phone. Ok, must get myself together :-/ . Here we go.
Specs:
Moto G 4g on dutch carrier (vodafone), XT1039
Situation:
Came from completely stock lollipop system, then succesfully unlocked phone via motorola website using the fastboot proces. Intending to install custom rom, first need a recovery. I am now stuck at this step. When booting i now get a screen "warning bootloader unlocked" before the moto splash begins, this is normal as far as i understand.
Problem:
Unable to boot into recovery. Directly after flashing any recovery (with fastboot) and choosing "recovery" from the bootloader i get the message "boot up failed"
After restarting the phone and choosing "recovery" from the bootloader i get the android on its back picture stating "no command"
Already tried:
installed the android sdk, fastboot and mfastboot.
Am able to send commands to phone with (m)fastboot. Flashing works.
I flashed: openrecovery twrp 2850 xt1032, clockwork 6047 falcon, philz touch 6587 falcon, twrp 2870 falcon m stock, twrp 2801 titan v2 and twrp 2860 xt1032
all give exact same result
"fastboot boot NAME of IMAGE"
"fastboot erase userdata & cache"
"fastboot erase recovery"
did the above things in any imaginable combination
I hope someone has some fresh suggestions for me? Thanks for your time.
Bro as far as I know the recovery is not installed u should install twrp from this thread the one on the official site gave me soft brick
Now about the dead android with no command shows that you are on stock recovery and u have booted into it successfully to go further into stock u have to press power and volume up at the same time (like u lock ur phone) but it won't help in installing anything try the recovery I linked (first format your phone complete data and cache wipe from stock recovery not necessary actually) install it through fastboot command and let me know if it worked (with thanks button) BTW what's ur bl ver
thanks for your fast response faizxy, as stated i already tried the one from that thread (i did not use the identical interpunction to describe it but to be clear it is twrp-2.8.7.0.-falcon_M_STOCK.img)
Where do i find my bootloader version? It is the one that came with the device, factory issue...
Some extra info, that might anwser faiz' question: when i boot the bootloader it shows:
"AP Fastboot Flash Mode (S) 41.1A (sha-80481ae, 2015-04-10 14:30:28)
Hope you guys will forgive me for bumping a bit soon, but I really hope some one has a solution! Tomorrow I have time to tinker some more
Have you tried at least one recovery that is actually for your phone (peregrine)?
_that said:
Have you tried at least one recovery that is actually for your phone (peregrine)?
Click to expand...
Click to collapse
Ah. I guess not. Did not know that there where recovery's specifically for the peregrine/xt1039. I searched for "moto g" but apparently is wrong model. DOH!
Thanks for helping out! My problem is solved.
For future reference; finding working pergerine recovery was quite difficult; most mirrors are down. I found one here: https://wiki.cyanogenmod.org/w/Install_CM_for_peregrine and then under header "installing recovery.." under step 2 the download link (i avoid deeplinking)
This one seems to work for me. Now lets find a nice custom rom!
The ones listed here http://forum.xda-developers.com/moto-g/4g-development/progress-twrp-2-7-1-0-source-t2807585 dont work for me. One gives black screen, the other one shows an unlock slider which is unresponsive.
Hi,
Try this one... With encryption abilities or without, your choice...
http://forum.xda-developers.com/showthread.php?t=2996266

XT1540 Bricked/ Locked Bootloader

Hello!
I have a problem with my moto g3, he gets stuck at fastboot screen at gives error "version downgraded for boot, failed to validate boot image" after an ota update.
I've tried with different factory ROMs and everyone of them says error "(bootloader) Preflash validation failed
FAILED (remote failure)"
What can I do? My phone won't work ever o there's a solution?, I've tried and I couldn't get it to flash anything.
I can't get it to claim warranty nor do I believe there's a specialized motorola service where I live.
Thanks in advance.
Psicovirus said:
Hello!
I have a problem with my moto g3, he gets stuck at fastboot screen at gives error "version downgraded for boot, failed to validate boot image" after an ota update.
I've tried with different factory ROMs and everyone of them says error "(bootloader) Preflash validation failed
FAILED (remote failure)"
What can I do? My phone won't work ever o there's a solution?, I've tried and I couldn't get it to flash anything.
I can't get it to claim warranty nor do I believe there's a specialized motorola service where I live.
Thanks in advance.
Click to expand...
Click to collapse
What did you do to it before this occurred? try to flash lollipop?
what model number, country, carrier; what was the last working rom you had on it.
Have you done this?
https://forum.xda-developers.com/2015-moto-g/general/guide-fastboot-flashing-factory-t3187750
KrisM22 said:
What did you do to it before this occurred? try to flash lollipop?
what model number, country, carrier; what was the last working rom you had on it.
Have you done this?
https://forum.xda-developers.com/2015-moto-g/general/guide-fastboot-flashing-factory-t3187750
Click to expand...
Click to collapse
Thanks for answering friend.
Is an XT1540. US retail. Unlocked. It had 6.0 before the ota that i think ir was a security update because it was aprox. 300mb.
Yes, i tried that with several images (factory) it wont ley me flash anything, gives me the errors that i mentioned before when i tried to flash gpt, system an recovery, it only flash logo.bin, nhlos succesfully.
I've tried to flash the 6.0 image corresponding to my model(xt1540 RETUS 2GB).
It says in the fastboot "invalid PIV image" and un the cmd "invalid signed image" or something like that.
You think is solvable?
Thanks a lot.
what twrp have you flashed?
No one, bootloader's locked, therefore i couldn't flash either twrp nor custom roms.
I suppose it had factory recovery, but it i choose to go to the recovery, il'll loop and go to the fastboot screen. I can only acces to the fastboot and fastboot logs.
Hang on a few minutes I'm working on a new guide...
If you do, i guess ill have to buy some marble to stand a statue un you honor man, thanks.
plastic's fine.
Start at the beginning and alert me if there's any confusion so I can fix it. Thanks.
https://forum.xda-developers.com/2015-moto-g/general/guide-osprey-moto-g3-begin-how-to-t3599251
Friend, it's pretty clear. Le probleme est that i dont hace and unlocked bootloader, but un order to unlock it i hace to check the box un developer options and i cannot do that cuz im stuck un bootloader mode, is a vicious circle, do you get me?
Can you boot to stock recovery - same as with TWRP but you will get a luing down android - press vol-up and after a few secs you will be in stock recovery. Do a factory reset. Maybe then you can boot. If not I am out of ideas.
It wont ley me boot to recovery, i ve done several factory reset vía fastboot mode.
Thanks forma taking the time trying to help me, i appreciate that.
you're welcome!
Psicovirus said:
It wont ley me boot to recovery, i ve done several factory reset vía fastboot mode.
Thanks forma taking the time trying to help me, i appreciate that.
Click to expand...
Click to collapse
okay, thinking more on this - since you can do fastboot factory reset, can you do a fastboot flash recovery? - show me a pic of the commands and results when you try it. Grab squid's latest and see what happens. Or will it just block it because you're locked.
haven't had a chance to look fully at this. Most need recovery, but...
https://www.google.com/search?clien...8#channel=fs&q=fastboot+turn+on+usb+debugging
Hey, you came back!! Haha.
Well, trying to flash anything will give me the error "failed remote failure" and "preflash valiudation failed", I've tried to flash either factory recoveries and TWRP with the same result. Addtionally, If i try to flash any sparsechunk it will also give the error " invalid signed image".
I'll have to say that trying to enable USB debugging vía fastboot is an excellent idea, i did't try that, i hope i can do it without the recovery cuz i can't boot to it and until now, i couln't flash any recovery.
Thanks again!
Edit: I've read quite a bit and seems like in every case you would need a working recovery to allow USB debugging, so I think I can not do it in the actual state of things haha.
Edit2: I have a pair of questions:
1. Do i need to check allow oem unlocking in developer options in android 6.0 in order to unlock the bootloader?
2. In order to use RSD lite and it recognizing muy phone do i have to have USB debugging allowed?
Psicovirus said:
Hey, you came back!! Haha.
Well, trying to flash anything will give me the error "failed remote failure" and "preflash valiudation failed", I've tried to flash either factory recoveries and TWRP with the same result. Addtionally, If i try to flash any sparsechunk it will also give the error " invalid signed image".
I'll have to say that trying to enable USB debugging vía fastboot is an excellent idea, i did't try that, i hope i can do it without the recovery cuz i can't boot to it and until now, i couln't flash any recovery.
Thanks again!
Edit: I've read quite a bit and seems like in every case you would need a working recovery to allow USB debugging, so I think I can not do it in the actual state of things haha.
Edit2: I have a pair of questions:
1. Do i need to check allow oem unlocking in developer options in android 6.0 in order to unlock the bootloader?
2. In order to use RSD lite and it recognizing muy phone do i have to have USB debugging allowed?
Click to expand...
Click to collapse
I don't know - I did.
Probably. I didn't know you could use RSDlite on the Moto g3 - paste a link if you find one!
What do you say you did? Didnt understand that
Psicovirus said:
What do you say you did? Didnt understand that
Click to expand...
Click to collapse
Sorry - I believed I switched on that switch for allow bootloader unlocking as well as USB Debugging.
from that google search - look at this and try it
https://www.youtube.com/watch?v=ShjJ3KkH6_I
http://www.allmobitools.com/2014/10/android-multi-tools-v102b-all-pattern.html
KrisM22 said:
from that google search - look at this and try it
https://www.youtube.com/watch?v=ShjJ3KkH6_I
http://www.allmobitools.com/2014/10/android-multi-tools-v102b-all-pattern.html
Click to expand...
Click to collapse
Hey friend, i don't want to be a pushover. You're taking the time to help me and i see that, but i saw the video, and he starts the phone by making a data erase, i already did that, and the phone refuses to start. Same error. "version downgraded for boot" "failed to validate boot image" "fastboot reason: fall-through from normal boot mode".
And says in big red letters "Start up failed: Your device didn't start up succesfully. Use the software repair assistant on computer to repair your device."
I feel like i've tried everything.
Thanks again.

Help please. Im desperated

Hello
I bought a Huawei x2 and brought a Chinese rom that gave me many problems.
I tried to ask him for updates using the "dload" method but he gave me an error.
The fact is that I formatted it from Flashtool thinking that I had the bootloader open.
After trying everything, he discovered that the bootloader is closed, but now the phone does not boot because I think I have flashed the entire system.
Flash a recovery, it makes me ok but then it does not pass Huawei's logo.
I guess without opening the bootloader it will be impossible to fix it.
I can access the Fastboot mode but I do not know what to do.
I also tried to flash img from the Huawei Extractor, which had previously worked on another X2 that I had brickered.
I guess without the open bootloader it's impossible to do anything.
I need your help. Thank you
Checked in fastboot, bootloader is unlocked.
But I cant install Twrp
I erase system, boot, user data etc
And now I dont have fastboot mode
Running error
boot image security verify failed
Help, please
lobodemonte said:
I erase system, boot, user data etc
And now I dont have fastboot mode
Running error
boot image security verify failed
Help, please
Click to expand...
Click to collapse
Flash this boot.img in fastboot which should still work. This boot.img is from B212 but should work on any B2xx rom. I'm not sure how else to help you when I don't know much about your device.
https://drive.google.com/file/d/1Ss3nkPJhQrlfHRgQzBRqXxTw6N7Pmz91/view?usp=sharing
Thanks ,but now I dont have access to fastboot mode
You have to use a usb cable and connect your phone to your PC first.
Then press volume down first + power to boot into Fastboot.
I know how use fastboot but now phone cant enter in fastboot..
Boot from B212 dont work
lobodemonte said:
Boot from B212 dont work
Click to expand...
Click to collapse
I don't know how else to help you. If you want to ship me your device Ill get it working for you and ship it back. You should always be able to get into the bootloader to run fastboot commands.
Now I can enter in fastboot.
I tried ALL but dont works.

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