Stuck in instant boot loop and cant get into fastboot or recovery - HTC U Ultra Questions & Answers

Hi everyone,
I was try to flash back to RUU and relock the bootloader but after "fastboot oem lock" and the phone reboot then keep power on 1 sec and show HTC logo and reboot the cycle again and again,
Do anyone have any idea how can I fixit without buy a new phone
My step as following,
1.TWRP wiped
2.fastboot oem lock
Then the phone keep instant reboot.
Thank you so much for your time and idea!!!

hi mate i am stuck in the same issue did you found any solution to it?

Related

Asus Zenfone 2 Laser ZE500KL

Hi. I have soft-bricked my phone and when I turn it on it says "ERROR:Can't load invalid boot image!" then after finding some solutions here in xda, the fastboot boot boot.img method worked but whenever I restart my phone it keeps bringing the problem back to I need to fastboot boot it again.. Is it because my fastboot is not saving my work after restarting my phone? Any solutions for this please
So find true version boot fit ur version android firmeware then open cmd type
Fastboot flash boot boot.img
"Boot.img" is name of ur file boot....
Hope it work for u
binsz said:
Hi. I have soft-bricked my phone and when I turn it on it says "ERROR:Can't load invalid boot image!" then after finding some solutions here in xda, the fastboot boot boot.img method worked but whenever I restart my phone it keeps bringing the problem back to I need to fastboot boot it again.. Is it because my fastboot is not saving my work after restarting my phone? Any solutions for this please
Click to expand...
Click to collapse
You have bootloader unlocked??

Re lock boot loader.

Hi this is my 1st post so sorry if it been asked before. In have my P10 plus running b150 firmware.. I had unlocked the boot loader with adb and went to install a new firmware but decided against it. But now whenever I reboot or power off my phone when it reboots I get the msg saying the phone isn't secure and can't be trusted. I've tried the fastboot OEM relock plus code in adb but all I get is an error saying root is at risk.
Any advice appreciated.
BTW I don't want to flash an OEM firmware if possible.

error fastboot :/

hi anybody help me? im flashing non android rom such as luneos nexus gsm rom but not booted and not able to get recovery just fastboot mode but fastboot command is said remote: command not allowed. im unlocked bootloader. after fastboot oem unlock command fastboot says status mailformed 1 bytes. any body help solution for me? thank you for helping me.
im using debian on my computer
MolnarMilanDorian said:
hi anybody help me? im flashing non android rom such as luneos nexus gsm rom but not booted and not able to get recovery just fastboot mode but fastboot command is said remote: command not allowed. im unlocked bootloader. after fastboot oem unlock command fastboot says status mailformed 1 bytes. any body help solution for me? thank you for helping me.
Click to expand...
Click to collapse
Fastboot boot doesn't work for some reason on Huawei P8 lite. You need to flash the recovery first and then boot to it by holding vol + and power.
Botar230 said:
Fastboot boot doesn't work for some reason on Huawei P8 lite. You need to flash the recovery first and then boot to it by holding vol + and power.
Click to expand...
Click to collapse
I have the same issue and when i trying to flash the stock recovery it says command not allowed but when flashing custom recovery like TWRP it flashing but i cant get into it if anyone can help please because i go to a lot of services centers and they say that the phone is dead and i have to throw it in the trash:crying::crying::crying::crying:
Abdala2307 said:
I have the same issue and when i trying to flash the stock recovery it says command not allowed but when flashing custom recovery like TWRP it flashing but i cant get into it if anyone can help please because i go to a lot of services centers and they say that the phone is dead and i have to throw it in the trash:crying::crying::crying::crying:
Click to expand...
Click to collapse
Download this recovery , flash it by typing "fastboot flash recovery <path>.img", after flashing reboot the phone by typing "fastboot reboot", then unplug the USB cable and hold the power button to shut the phone down. Now hold the Vol+ and power button at the same time, release the buttons when the Huawei logo appears, and you should be in TWRP.
Botar230 said:
Download this recovery , flash it by typing "fastboot flash recovery <path>.img", after flashing reboot the phone by typing "fastboot reboot", then unplug the USB cable and hold the power button to shut the phone down. Now hold the Vol+ and power button at the same time, release the buttons when the Huawei logo appears, and you should be in TWRP.
Click to expand...
Click to collapse
I will give a try but i tell when i flashing any recovery i cant get into it
sorry but recovery.img is not working for me because fastboot says remote: command not allowed so im need p8 lite unlock bootloader code because badly installed luneos is relocking my bootloader so please send unlock code for me. thanks
MolnarMilanDorian said:
sorry but recovery.img is not working for me because fastboot says remote: command not allowed so im need p8 lite unlock bootloader code because badly installed luneos is relocking my bootloader so please send unlock code for me. thanks
Click to expand...
Click to collapse
You have to fill this , then Huawei will send the code to you in 24 hours.
Botar230 said:
You have to fill this , then Huawei will send the code to you in 24 hours.
Click to expand...
Click to collapse
thank you im feel this and sending code but not working for me fastboot says password wrong. im give product id with imei24.com but im think it is generated product id not original :/ can you help me? how can im find original product id for my bricked p8 lite?

help...seems like i'm in a boot loop

phone flashes htc logo (old) for a millisecond and powers off. I had twrp on there. I then use fastboot oem lock. This then happened
now I got into download mode but I have no Idea what RUU to flash. Mine is a international single sim. Please help!
nothing works
tried to flash:
unlock_code.bin (again)
boot.img
recovery.img
twrp.img (again)
firmware.zip
RUU BTW my phone is htc_32
always ends with bootloader isn't unlocked or S-On is preventing be from doing so
I also tried to format (blocked by S-On)
and reset (blocked by S-ON)
Lord_Atanosica said:
now I got into download mode but I have no Idea what RUU to flash. Mine is a international single sim. Please help!
Click to expand...
Click to collapse
btw if you have the same problem the key combo is volume up and down and power at the same time
Hi,
if you're able to access the phone via fastboot, you can try the following method:
https://forum.xda-developers.com/u-ultra/help/howto-unbrick-ultra-t3891033
Greetings

Nexus 10 can't unlock bootloader

Hello,
I have a friend's tablet Nexus 10 who has a problem with booting the system. I should be flashing it via fastboot but I can't do that because the bootloader is locked. When I try to unlock the bootloader via fastboot, it offers me 'YES' or 'NO' options on the screen. When I click 'NO' the tablet restarts properly and enters bootloop (which is a problem). And when I click 'YES' to unlock it, the tablet locks up and doesn't respond to any commands until I get into fastboot or bootloader unlock again. Do you know what to do?
Thanks in advance,
Uros.
I'm on the same boat here. Tried to unlock the bootloader but happens the same thing you are describing.
Did you have any luck in the end?
Thanks in advance.
SPQR.

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