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Previous Tutorials:
How to create and install custom boot logo(second Part):
How to install cyanogenmod(first part):
*******Prerequisites! READ ALL!
Downloads:
ADB Tools:
Factory Firmware:
USB Drivers:
WARNING: Perform a ‘Factory data reset’ in Android before flashing any Firmware Image. This can also be done via Stock Recovery.
Do commands manually, one at a time – checking that each one returns an [OKAY].
NOTE: Do not simply copy and paste these commands! – system.img_sparsechunks may differ in number and name.
Always check contents of folder you’re working with. You must flash all of the sparsechunk files you have.
ALWAYS CHECK YOUR MODEL
FLASHING WRONG FIRMWARE CAN DESTROY A PHONE
Commands to Lock Bootloader and restore stock firmware Moto G3 (Lollipop)
—————————————————————
fastboot oem lock begin (optional)
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 erase clogo
fastboot oem fb_mode_clear
fastboot oem lock (optional)
fastboot flash logo.bin (optimized to remove Unlocked Bootloader Warning)
fastboot reboot
Commands to Lock Bootloader and restore stock firmware Moto G3 (Marshmallow)
—————————————————————
fastboot oem lock begin (optional)
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 system system.img_sparsechunk.6
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 erase clogo
fastboot oem fb_mode_clear
fastboot oem lock (optional)
fastboot flash logo.bin (optimized to remove Unlocked Bootloader Warning)
fastboot reboot
Nguồn: https://12m-15m.org/
Xem thêm bài viết khác: https://12m-15m.org/category/cong-nghe
It shows Preflash validation failed. What to do
Please help
you have helped me tremendously! thank you for the thorough tutorial and love your voice. Thank you thank you thank you!!!
fastboot flash partition gpt.bin
preflash partition failed
please help
i have android nougat custom rom can i revert back it to original marshmallow
Hi, tell me why when I try to flash fastboot flash partition gpt.bin in my fastboot writes prevalidation failed ???Stock firmware, I wanted to flash and lock the bootloader, nothing happens!
bro .. its says remote failure how to fix
"fastboot flash partition gpt.bin" gives a preflsh validation failed
Showing upload a valid signed image, please note I had installed TWRP in my device
After executing your above steps showing preflash validation failed plse help me🙏
Sir please make video on how to relock bootloader of Moto g5s plus pls sir 🙏🙏🙏🙏🙏
i have motto g3 turbo edition, does these steps will work on To Return The Moto G3 te Back
fastboot flash partition gpt.bin
after executing the above this was the log
Preflash validation failed
FAILED (remote failure)
What does it mean ? Should I proceed or not ?
at flash boot boot.image it fails and displays the message (bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 1.135s
what should i do ? please help me it is urgent.
Why do you need the custom logo if you can relock the bootloader. Relocking the bootloader removes the warning message.
Hi Sir, I have MotoG3 xt 1550…I am trying to flash it, Hitting with error as "preflash Validation Failed"…Tried in all the ways… but not working.. please suggest us sir…..
fastboot flash partition gpt.bin
preflash partition failed
please help
plz bro help me this thing happen to me.
D:red1motorolaromflash>fastboot devices
ZY222ZHT2M fastboot
D:red1motorolaromflash>fastboot flash partition gpt.bin
sending 'partition' (32 KB)…
FAILED (command write failed (No such device or address))
finished. total time: 0.005s
D:red1motorolaromflash>
now i am using a custom with 7.1 android version
after the oem lock process should I get a new unlock data to root it again
thank you so much
When i m trying to flash this error is coming please help
C:UsersSurajDesktopADB and Fastboot>fastboot flash system system.img_sparsechunk.1
target reported max download size of 268435456 bytes
sending 'system' (230226 KB)…
OKAY [ 7.621s]
writing 'system'…
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 7.656s
couldn't relock my bootloader after flashing firmware, any ideas
rebel chip, when i flash the gpt.bin file, it shows prevalidation failed. and so further for all spareschunk files it shows prevalidation failed.
I had rooted my device and had cm14 in it. now I've returned to stock rom with bootloader unlocked state. so I wanted to lock it.
https://forum.xda-developers.com/showthread.php?p=48915118#post48915118
this mathod supports moto x play ?
any solution to preflash validation failed ? Please let me know
i don't know but i can't flash stock rom on my moto g3 getting failed on 3rd step gpt.bin please help me it's an Indian model xt1550
C:DownloadsADB and Fastboot>fastboot flash system system.img_sparsechunk.1
target reported max download size of 268435456 bytes
sending 'system' (230229 KB)…
OKAY [ 7.292s]
writing 'system'…
(bootloader) Invalid signed image
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 7.320s
Please help?
please make a video for huawei p9 lite
currently my phone work on 6.0 but i want to 5.1 lollipop please guide me
C:Program Files (x86)Minimal ADB and Fastboot>fastboot oem lock begin
(bootloader) slot-count: not found
(bootloader) slot-suffixes: not found
(bootloader) slot-suffixes: not found
…
(bootloader) Please fully flash the signed build before locking phone!
OKAY [ 0.026s]
finished. total time: 0.026s
This is my problem
I was in Marshmallow stock, unlocked Bootloader and then flashed SU and then flashed Lineage OS. Now while trying to go back to stock ROM I encountered this problem. Please help me
C:Program Files (x86)Minimal ADB and Fastboot>fastboot flash partition gpt.bin
target reported max download size of 268435456 bytes
sending 'partition' (32 KB)…
OKAY [ 0.005s]
writing 'partition'…
(bootloader) Preflash validation failed
FAILED (remote failure)
finished. total time: 0.420s
While I write the 1st Command "fastboot oem lock begin"
it shows "(bootloader) slot-count: not found
(bootloader)slot-suffixes: not found
(bootloader)slot-suffixes: not found"
what should I do??
fastboot flash partition gpt.bin
doesn't end OKAY
any help??
Do you know how to solve preflash validation failed.because I am trying to flash "fast boot flash partition gpt.bin" and it shows verification error.I tried to find the solution for that every on the web but got nothing. I am downgrading my Android from lineageos 7.1.1 to Android 6.0. Help me!!
I have one more extra file for marshmallow i.e "sparsechunk.7" so should I add one more lines to commands ? my phone is motog3 XT1550 2gb ram running marshmallow from India … Please help me
you're the fucking guy thanks man!!!!!!!
i have moto g4 plus and i want to relock bootloader so what can i do plz help
sir when i install the stock rom 6.0.1 the gpt.bin command always failed ………. so what can i do …… plzz give me any suggestions…
My phone is not rooted,I am using lineage os ROM now and I want to get back to stock ROM please help
fastboot flash partition gpt.bin when I am writing this command its says failed and then all commands are failed.so I am not getting back to stock ROM plss help