[BoatLoader Lock] my phone wont boot up to flash mode - Sony Xperia X Performance Questions & Answers

after failed with massage "Processing of partition-image.sin finished with errors." i wanna try again to flash mode not boot up. i ve tried to unlock oem but failed. cannot install twrp, cannot boot to stock, only can boot to fastmode. what can i do?

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Failed to validate system image, Fall thorugh from normal mode, mismatched partition

hey friends plz help me I was flashing the stock 5.0.2 rom on my device it succeeded too.
But to change the recovery and to lock the bootloader I fastboot flashed stock recovery and locked the bootloader.. these also succeded.
But now when i try to reboot from fastboot it says mismatched partition size(recovery), fall through from normal mode, failed to validate system image.. etc
and it is not booting, plz help me someone...
Update : Flashed stock 5.0.2 via mfastboot v2 and it worked fine and device booted up finally...!
Mods I request you to delete this thread

Bricked? help please..

Timeline of the brick.
1-apps started crashing.
2-got stuck and unresponsive.
3-rebooted
4-automatically booted to bootloader.
5-selected boot options.(nothing worked).
Present state.
on nougat build 7.1.1 running with elementalx.
Stuck on bootloader screen with recovery log showing "failed to validate boot image/recovery image" . tried every methods,theories,heating the phone etc... all the methods but none of them worked.
fastboot and adb available (using temporary boot twrp 3.1 recovery) but flashing and erasing partitions failed through twrp. Every available partition showing 0mb
but i noticed that using older twrp images it is able to locate /data partition with 27199 mb available but cannot erase/format/resize it.
tried gpt.bin file using fastboot to flash but it returns - " failed to flash gpt.bin"
tried every image to flash and commands to revive but fails.
any help would be appreciated.
somehow i got the device to boot into qualcomm download mode 9008 and tried to debrick using files qboot but no luck still shows failed to flash gpt partition.
want to have this beast back again.

[HELP] Fix my Huawei P9 EVA-L19C636B361

Please help me with my phone i cant access recovery and i cant flash anything in fastboot it reads writing recovery failed... i cant boot into system.
Edit: I can boot on system, but i can't boot into recovery, just fastboot... and my fastboot cant flash anything. it reads writing "recovery" FAILED

[Q] Issue with flashing TWRP Recovery

I have my Bootloader Unlocked, OEM Unlock is selected in Developer options, USB Debugging enabled, latest drivers and version of the SDK installed. I am able to get into fastboot mode, but once I proceed to fastboot flash recovery twrp.img
it starts to work but then says FAILED (remote: unknown command)
I've tried every version of TWRP. I've tried rebooting PC, Phone, etc. All to no avail. Very frustrated after spending 3 hours trying to get this to work. Any suggestions would be appreciated in getting this to work properly. Thank you.
Once you are in fastboot, instead of flashing, do 'fastboot boot twrp(name of file).img' to load twrp on the phone. The phone will load twrp and boot into it. Prior to the previous step, you should download flashable twrp.zip and place on your sd card that now you can flash once you boot in recovery.

Please help! I've bricked my Moto G6!

When I boot my phone, it says:
AP Fastboot Flash Mode (Secure)
Error: failed to load kernel!
Fastboot Reason: Fall-through from normal boot mode
I've tried wiping and flashing several roms on it through TWRP, but keep getting this error. What am I doing wrong? The bootloader is unlocked and the device is rooted, if that helps.
I followed the instructions here: https://forum.xda-developers.com/moto-g6/how-to/stock-firmware-moto-g6-t3792292
and the device is now booting. But it said it was encrypting the data which doesn't sound right, I don't want that.
Before you flashed the stock ROM again, was the device encrypted?

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