Xperia P (LT22i) Fastboot Problems - Upgrading, Modifying and Unlocking

Hi everyone !
I have a Xperia P (LT22i) with the stock ROM from T-Mobile.
Recently I got a virus and the phone is unusable.
I wanted to restore the stock ROM with the Sony Flash Tool because factory reseting did not work.
But i needed to unlock my bootloader through fastboot first.
So I tried the button combination to boot into fastboot mode but it did not work.
Then I tried boot into it with using ADB by the "adb reboot fastboot" command,
it did not boot into the fastboot, I even tried the "adb reboot recovery" command.
But in both cases it rebooted into system.
So I am worried if the T-Mobile version of this phone even has fastboot!
If you have any suggestions please reply !

Related

[FIXED] I have no recovery after fimware update and can't connect fastboot!

Hey. I was using a 5.0.1 GPE Rom on my M8 and decided to update both the firmware and the rom to 5.1
I Backed everything up and decided to, as usual, use adb to sideload the firmware to the phone. I did and everything went as expected. After I finished I rebooted to android. I get NFC service stopped working, System UI stopped working and I can't interact with the phone. My thought, well let's go to the recovery and flash a rom I have in my external SD card. No recovery to be found just a android guy belly up with a red ! sign on his belly.
So I thought, I lost my recovery due to the firmware flash, I had happened before, So i went online found a TWRP recovery and went to flash it. Reboot to fastboot USB mode, but then in adb I cannot see the device at all. "adb devices" shows and empty list. I tried my windows 7 laptop to the same result.
Can anyone PLEASE PLEASE help me, I'm kinda freaking out at this point and am running out of options
xsidex said:
..... Reboot to fastboot USB mode, but then in adb I cannot see the device at all. "adb devices" shows and empty list.
Click to expand...
Click to collapse
When in fastboot mode - run command fastboot devices
No adb when in fastboot mode
To flash a recovery (unlocked bootloader)
fastboot flash recovery nameofrecovery.img
ckpv5 said:
When in fastboot mode - run command fastboot devices
No adb when in fastboot mode
To flash a recovery (unlocked bootloader)
fastboot flash recovery nameofrecovery.img
Click to expand...
Click to collapse
Sometimes some outside thought can be just ridiculasly helpfull when you are stuck in a tiny issue.
Thank you so much Kind sir, my heart rate thanks you aswell.
What a silly mistake

Need help! Bootloader / fastboot unknown issue!

Hi everyone,
I´ve been trying to install twrp recovery in my Huawei Ascend P6 via fastboot. I followed this "techglen adb and fastboot guide"
I already installed everything needed for adb conection.
So I connect my phone in MTP mode and use "adb devices" and my device appears normally, but the problem happens when I reboot into Bootloader/Fastboot mode and use "Fastboot devices" it appears a device conected but with a bunch of "?????" and a smiley face at the end like this:
C:\Fastboot>adb devices
List of devices attached
123456789 device --------> bunch of numbers appear normally
C:\Fastboot>adb reboot bootloader --------> Phone restarts into bootloader mode (shows huawei ascend logo)
C:\Fastboot>fastboot devices
????????_?_???_?<??????? fastboot ----------> WTF (this is exactly what appears)
I would like to know if there's something wrong with my phone
Should I proceed and flash the custom recovery?
I have stock android 4.4.2 (rooted with kingroot) and stock recovery.
I am a total noob at this so I need your help :crying: I dont want to do anything stupid. (If already did let me know lol)
I have the same issue. Problem is that phone is bricked, so I can only enter in recovery (official, unrooted, unlocked) and fastboot mode.
Have you managed to solve or have some hint?
I have experienced a inconsistency while using minimal adb and fastboot. While device not showing i could send command and the phone would respond. After going into bootloader and while my device wasn't shown in the list i could flash twrp without much trouble, helped me go back from being stuck on bootanimation. used the command fastboot flash recovery xxxx.img (where xxx is the name recovery name). If you can get into boot loader try fastboot reboot bootloader and if the phone responds you might be in the same situation i was.
Always remember: Messing with recoveries bootloaders and boot images might make your phone unusable so do it at your own risk
Have you actually tried to flash twrp? Did you put the img file of twrp to the minimal adb and fastboot folder? If so, try the commands 'fastboot flash recovery recovery_twrp.img(<-- use the name of twrp file here, so not the exact name wrote here) and reboot. My phone is a bunch of question marks as well and it flashed twrp just perfectly (I got it frome here: http://forum.xda-developers.com/showthread.php?t=2632542)

Made a mistake while fastboot

Hello everyone,
I was trying to root my Xperia XA1 Ultra
I did everything right, i did the commands :
adb devices
adb reboot bootloader
fastboot flash boot boot.img
Everything worked fine, then tried to flash the recovery
fastboot flash BOOT recovery.img
This is were i made the mistake and now my phone is booting on the recovery,
i tryed to do everything again, still booting on the recovery, so i tried to press Reboot>System
My phone restarted and now it's stuck on the "SONY" logo
I can't do anything anymore do you guys know how to fix that so i can have access to Android again?

Moto z play always boots into TWRP

Hey guys,
so i installed a new rom on my moto z play which worked perfectly fine, but now when i start the phone it will always boot into twrp where i have to choose boot into fastboot mode and there i have to choose start so i can get back into the os, is there any way to tell the phone to boot directly into the os and not always into twrp first?
enter fastboot mode on phone. Connect to pc, open terminal and give this command >> fastboot oem fb_mode_clear << , reboot.

xperia XA2 with bootloop, softbrick. Flashmode doesn't work.

So, i bought a xperia xa2 that is bricked. It shows sony logo and shuts down.
Fastboot works
ADB doesn't ???
Flashmode doesn't (if I try to access it, led turns green for like 5s and nothing happens)
I tried to unlock bootloader through fastboot but it doesn't let me... "Command not allowed" :/
-"Fastboot Erase" also not allowed
---does that mean that "fastboot flash" will also not work ?
Is there any other fastboot command that unlock bootloader then "fastboot oem unlock"?
Any idea what else I can try ?
Any idea why it shows up only as a fastboot device but not as ADB device ?
I'll try xperia flasher tomorrow
Thanks for any help

Categories

Resources