[SOLVED][HELP] Lost access to fastboot - Honor 8 Questions & Answers

Edit: Solved the issue by using a new USB-C cable.
Hi all,
I was on MM B130 and did a downgrade to B120 using dload method as I wanted to sell the phone. Although I have successfully downgraded, I can't get the phone detected by adb. I then realised I have also lost access to fastboot. Pressing Volume - with the power button or just the Volume - with plugging in the usb cable does nothing. It just boots straight to home.
Hope someone can help me out!
Thanks!

Thread closed as per OP's request

Related

Bricked and Boot Loop

Hi all. Looking for some ideas. I think I have ruined my P6X. Model is BLN-L24 and I did the Chinese HWOTA to EMUI 8.0. I then flashed Open Kirin LOS beta 4 and got Oreo up and running! The microphone and speaker didn't work however, so I decided to roll back to the stock system. So via the Update folder method on the sdcard I rolled back first and then reinstalled the original BLN-L24 firmware available on the Huawei website. The phone kept bootlooping and I could not get into eRecovery to factory reset. I then attempted to install TWRP but since the bootloader was relocked I could not do this...so I recalled the saved unlock code I had for this device and did a Fastboot OEM unlock. Now the device simply bootloops no matter what I try to do! It opens with the Honor splash screen, goes into the device cannot be trusted screen warning vibrates twice and bootloops. I can't get into fastboot, I can't get into the sdcard firmware flash update and I can't get into any recovery. The phone will not stay on long enough to be recognized by the computer as it continuously bootloops. Huawei MT version 8 does not recognize the device as being connected and I am now at a complete loss as to what to try...looking for any advice or secret power up + vol key combo to get the phone into either firmware update to reflash via sd card or get the phone into fastboot mode so I can connect to Huawei MT.
Remove backcover and remove battery connector from board and then keep pressing vol- and connect usb to go to fastboot without connecting battery. And unbrick via multitool.
Thanks I'll try and report back!
ratnesh1992 said:
Remove backcover and remove battery connector from board and then keep pressing vol- and connect usb to go to fastboot without connecting battery. And unbrick via multitool.
Click to expand...
Click to collapse
Ok I opened the rear and disconnected battery. It still is doing the same activity while I try to put the device into fastboot
No need to
taemta3 said:
Ok I opened the rear and disconnected battery. It still is doing the same activity while I try to put the device into fastboot
Click to expand...
Click to collapse
i faced the same problem a while ago. my way to solve it was to completly uncharge the phone (let it on or looping till your battery is dead) and connect it with vol- to your pc. for me this helped and bootloader came up again.
Ok I powered down completely, and then reconnect USB w vol down and the phone did the same behavior. I think the motherboard will need some sort of test point to reset to fastboot. It's past my ability. RIP honor 6x

Honor View 10 Bricked (in a bootloop) after Official update.

Hi,
I recently tried to install the most recent update (the update was for EMUI 9 I think) on my V10 and it is now stuck in a bootloop. I cannot access recovery mode, when I enter fastboot mode, it says my FRP is locked and my PHONE is locked. I can't flash anything because my bootloader is locked. I have no idea what to do, any help is appreciated although I would rather the solution be free (ie not DC Unlocker or funky Huawei).
I had this once before and I solved it by getting into recovery mode, however, I don't know how I got into recovery mode last time it just happened randomly. I tried Vol up + power button, it does nothing just reboots my phone. I have tried vol up + vol down + power button, the same result.
I don't know what to do anymore.
Thanks in advance.
EDIT:
so I solved my problem, I let the battery die overnight and in the morning I tried plugging it in and booting into recovery mode (vol up + power button) and after trying several times (and unplugging my phone so it would die then plugging it back in to try again) I finally got it into recovery mode. From there I pressed download and recover and I got my phone back. The only problem now is that I can't update my phone through the official process as it just puts my phone back into the bricked state. Hope this helps anyone else who was in this situation.
Since the problem is caused by an official OTA, I recommend to send it to the service center
PalakMi said:
Since the problem is caused by an official OTA, I recommend to send it to the service center
Click to expand...
Click to collapse
Yeah, I resorted to this last night and called them up for repairs. They were going to take it in but I now fixed my phone (look at my edit in the original post for info).
Thanks for your help though.
I'm glad that you've found a solution
Same issue but no luck for me.
No repair center because my bootloader is unlocked.
My issue :
https://forum.xda-developers.com/honor-view-10/help/9-0-0-official-pie-update-failed-boot-t3889378
Try edl flash

Stuck at entering fastboot mode

How can I get my Galaxy Note 20 Ultra out of stuck at 'entering fastboot mode'?
Hold down power and volume down until it reboots back to recovery. I got stuck there last week and that's what worked for me.
Sent from my SM-N986U1 using Tapatalk
Is this problem solved? I cannot boot into bootloader mode, thanks!
Switch off the device. Then hold volume up and down buttons and insert the USB cable plugged to PC. You will get to download/odin mode
shantanil said:
Switch off the device. Then hold volume up and down buttons and insert the USB cable plugged to PC. You will get to download/odin mode
Click to expand...
Click to collapse
Download mode is different from fatboot mode, I can enter, and works ok download mode. However, fastboot does not, it gets stuck in entering fastboot mode and no fastboot command works
I got same issue here, I've tried rooting via TWRP and after data wipe and "reboot to recovery" it got stuck in same thing and doesn't move at all, if I hold power and vol down it just boots the device which i dont want since i need to flash magisk as a last step. if anyone encountered this or knows how to fix it i'd be helpful
I'm not rooted but I've had past Samsung devices that I was able to root and if I'm not mistaken Samsung phones aren't able to boot into fastboot mode because Samsung removed the ability to. You can run commands via ADB mode but I think that's about it
adj998 said:
I'm not rooted but I've had past Samsung devices that I was able to root and if I'm not mistaken Samsung phones aren't able to boot into fastboot mode because Samsung removed the ability to. You can run commands via ADB mode but I think that's about it
Click to expand...
Click to collapse
Yea I fixed it somehow I don't even know myself
i cant eneter into download mode by using volume up and volume down ... the only thing that happens is the battery display kicks in .. is there a trick on how long to hold the volume bottons .. or any special way of doing it .. or for the usb c while trying to connect it to the computer
it gets stuck into fastboot entering if i try to do it the old fashion way .. please help
Guys, turn off the phone, press volume up and volume down together, and plug the usb cable while pressing volume up and down, and wait until the phone enter in downloading mode. This work for me.
leonardo_evaldy said:
Guys, turn off the phone, press volume up and volume down together, and plug the usb cable while pressing volume up and down, and wait until the phone enter in downloading mode. This work for me.
Click to expand...
Click to collapse
Thanks Man. This worked.
Since we can"t enter into fastboot mode is it possible to flash boot.img with adb commands?
I m having the same problem with a21s(a217f). I can t enter download mode using key combinations and the other way launching it from recovery doesn t work, it stays stuck at,, entering fastboot mode,,
The ROM is already bricked, it says in recovery when i try to factory reset the following error:,, can t mount. /system (structure needs cleaning)
Even with,, apply up. with adb,, doesn t work, it just doesn t get detected on my computer when i checked with adb tools.
! The only thing that works is that I can access my sd card and apply a update from sd card but I don t know where to get the update file. (I ll edit if it works to flash stock rom from,, apply update from sd card,, )
Anybody got some ideas or should i burn my motherboard and replace it?
sorry for bad english
Honestly plug device into PC.
Power off device
hold all 3 side buttons. Volume up and down and power/bixby.
Should usually work.
After in fast boot you must press a button Volume button to find via odin.
ivoe said:
Honestly plug device into PC.
Power off device
hold all 3 side buttons. Volume up and down and power/bixby.
Should usually work.
After in fast boot you must press a button Volume button to find via odin.
Click to expand...
Click to collapse
I already did that, unplugged the battery, reconnected it after 1min, connected my phone to the computer and pressed all 3 side buttons, still doesn t work. I guess the download mode is deleted or something..
Volume up & down, no side key, then connect to PC. Works for me. Connect to PC first does not work for me.
guru96 said:
I already did that, unplugged the battery, reconnected it after 1min, connected my phone to the computer and pressed all 3 side buttons, still doesn t work. I guess the download mode is deleted or something..
Click to expand...
Click to collapse
It wouldn't be deleted as it's a safety protocol if the device has a bad update and freaks out.
Maybe try to person above method.
Normally I can enter download mode with any of these methods if you cannot I'd suggest trying to get the device replaced due to software malfunction
altojd said:
Since we can"t enter into fastboot mode is it possible to flash boot.img with adb commands?
Click to expand...
Click to collapse
Samsung phones use a tool called Odin to flash firmware. If you're flashing custom firmware firmware you'll need to have your bootloader unlocked.
I got mine into download mode just now. It's a Galaxy A13 .. Like stated above, try to hold all three buttons down and connect to USB. I had to let go before it showed the battery charge icon. From off. If not from off try from charging. I think that's what I did just now. Plug the usb -> let it show the charging icon (from powered off!) -> hold all three buttons, let it power on, let go. DONE.
just follow this video it helped me a lot to unlock my boot loader

Question how do i reset when i cant reboot to stock recovery [solved]

so I relocked the bootloader after flashing stock and now I forgot my pin. I don't have usb debugging enabled and I can't reboot to recovery using buttons.
please help
I need to reset but I can't
You should be able to reboot to Recovery. Just try doing it (holding vol up + power) with the USB cable plugged into PC.
thanks so much!!!! a127f for future reference
Thank you so much uluruman nippers new phone christmas day inserted an incorrect password on installing and couldnt unlock the phone.
couldnt get it into boot mode.
its having the usb plugged in thats imperitive i saw a post saying headphones but dont have any usb c ones.
using the power lead did the trick.
thank you

Is my ASUS Zenpad S really dead after a failed unlock attempt?

Hi my fellow XDA people,
I recently got a Zenpad S 8.0 (Z580CA) for close to nothing and I loved the little thing. However it was still running 6.0.1 and I decided I wanted a custom ROM and root it. Starting with some guides how to unlock the bootloader I started with the whole ADB/Fastboot thing, but it got stuck and now I got a bricked device
The situation now:
Charging works fine
The tablet starts, but without the ASUS logo and immediately enters a bootloop with the following:
the Android robot with a hardhat
A USB image with the text: "No USB Cable connected!" (No matter if there is or isn't any USB cable connected)
To fix it I'm hoping to get to a recovery/droidboot menu to do a hard reset or update from SD or via a PC, but I've tried the following without any result:
Power + volume up
Power + volume down
Power + volume up + volume down
Drain the battery and one of the options above
Connecting to a PC and using adb/fastboot/asus flashtool
Unfortunately this option doesn't work, because the PC only recognizes the tablet for a second when the android man shows, but disconnects as soon as the " no usb cable connected!" is in screen.
A different Cable/PC makes no difference
I'm afraid it's really dead now, but I'm hoping anyone has an idea or finds this a challenge .

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