[Solved] Huawei P9 Lite boot only in error mode, please help me. - Huawei P9 Lite 2017 (General)

I manage to solve it :good:
In summary:
What lead me to Error Mode:
I wanted to rollback to marshmallow, because i had updated to dual sim nougat (long story) so it was problematic (missing apps ecc.), i tried to install the rollback with "dd if of" before installing the marshmallow firmware with dload but something has gone wrong and the "recovery" and "recovery2" partitions were corrupted and "cust" and "version" as well but because of the update (no update in settings, NDR90M test-keys).
I rebooted in fastboot to patch things up, but the bootloader was locked because to rollback i reinstalled the single sim "oeminfo" partition, so i unlocked the bootloader, but the phone couldn't be factory resetted since it hadn't a working recovery, so the phone apparently refused to boot any other mode than "Error Mode" with the following message:
Error!
Func NO: 11(recovery image)
Error NO: 2(load failed!)
and it wasn't detected by any pc.
How it was solved:
After some googling i found out that let my phone discharge + a button combination could lead to booting into fastboot (https://forum.xda-developers.com/honor-9/help/help-hardbrick-func-11-recovery-image-t3656979), so i left my phone booted in Error Mode.
When it turned off i plugged it into the pc and left it charge a bit, and suprise, after some minute it booted up automatically in system (idk why), but it shutdown on the lockscreen, so i let it fully discharge again in Error Mode and i this time i plugged it into an outlet, and it booted successfully, but to boot into system i had to discharge it completely everytime.
I tried "adb reboot bootloader", "adb reboot recovery" and i tried to factory reset from settings but no luck.
Then i turned it off and i started to spam the **** out of my phone by trying every combination possible, and finally one seems to have lead me to fastboot after a lot of tries: i let it charge a bit while booted into the system (like 8%), then i turned it off, and i tried "Power + Vol+", "Plugged/Unplugged", "Power + Vol-" in random order and multiple times, and it worked, from what i remember it was: Turn off->Power + Vol+ (Error Mode) -> Plugged -> Power + Vol- (Fastboot)" but i'm not sure.
If the bootloader is unlocked and frp disabled it's a matter of hours and some "fastboot flash" before it will be fully functioning again, else i suggest to look in that topic and use dc unlocker as last resort.

let the phone drain the whole battery and then keep pressing volume down and connect it to pc,dont release the volume down till it opens to fastboot mode,if nothing happens in one try give it another shot,keep trying,it will work.thank you

Related

[Q] G6-U10: Stuck in fastboot mode

Last night my G6 rebooted itself and now it is stuck in a fastboot loop. It keeps restarting itself when connected to charger or PC. Nothing happens when phone is disconnected from charger/pc. Only message on screen is "Keep pressing power key for 10 seconds to exit fastboot mode" but it doesnt help. Phone was stock and not rooted...
MLu75 said:
Last night my G6 rebooted itself and now it is stuck in a fastboot loop. It keeps restarting itself when connected to charger or PC. Nothing happens when phone is disconnected from charger/pc. Only message on screen is "Keep pressing power key for 10 seconds to exit fastboot mode" but it doesnt help. Phone was stock and not rooted...
Click to expand...
Click to collapse
did you try to flash the newest rom ?
By the way .... which G6 do you have ? (L11, u10 etc..)
In the title it says U10, thought that would be enough info
I never flashed/rooted a phone before so I didnt try anything so far...
edit: I tried the suggestion from this post: http://forum.xda-developers.com/showpost.php?p=59545669&postcount=4
1. redownload the rom file from official location. ( http://consumer.huawei.com/kh/suppor...h.htm?id=38361 )
It is the official for g6-l11 (-> dl a version for G^-u10 instead)
2. put the update.app into dload folder on your sd card (unpack from the zip)
3. shut down your phone
4. hold volume+ volume- and power button. When it start to boot release the power button, and hold both the volumes until the instalation starts
5. you will see that firmware flashing begin, wait for the end
Click to expand...
Click to collapse
It seems to work, I see the green android dude and text "updating from external storage" but the problem is the phone keeps restarting itself so it doesnt continue with the update... I suspect sometings wrong with the battery, short circuit maybe?
edit 2:
After giving up last night i tried the above procedure one more time this morning...and for some reason the installation continued. Phone has been up and running again since 8:30 this morning...
where can i get stock rom that can be flashed via sp flash tool? my huawei ascend g6-u10 is bricked after flashing b330. any solution for this?
my phone is dead but my pc can still recognize it

Downgrade bootloop

I've made a horrible mistake.
I was on 5.9.16, tried to downgrade by flashing system, recovery, cust and crc.
Unfortunately I've done it with B316, which is 4.4.4, so i got this annoying bootloop, in which i can't access recovery, bootloader or use the 3 buttons method.
It seems as if the phone tries to forcefully boot into system ignoring everything I do.
I tried draining the battery to turn it off, which worked, but when i charged it it tried to system boot as soon as there's enough battery.
Any ideas?
i have the same problem but solved to boot into bootloader
it just the timing must be perfect as it is only small window to enter
what i do is i push the on button and - sound button
when the phone vibrate i quickly insert usb cable before the honor logo comes out
sometimes when it fails also i will try push the - sound button several time with the usb cable inserted

Pixel Stuck in Bootloop, ADB Unauthorized, Bootloader Unlocked

Hello, I recently came on a pixel phone to build and use lineageOS on. Upon rebuilding, I believe I performed adb sync wrong the device and damaged system. After that, my adb keys became unauthorized and I am unable to access the bootloader menu(I press power and volume, but phone boots into Bootloop). I tried the steps to get to bootloader menu, but the phone doesn't power completely off, and when I press the power button it gives me the launch screen saying press power to pause/continue boot, not allowing me to go into bootloader
My bootloop goes like this: Bootloader integrity screen(bootloader unlocked, cannot be verified) --> Google loading screen --> Android recovery. This shows 2 options with the message, "Can't load Android system. Your data may be corrupt. If you continue to get this message, you may need to perform a factory data reset and erase all user data stored on this device". The two options are to try again or data reset.
I press try again, and the same bootloop ensues, sometimes getting to lineage loading logo, but then back to the same recovery error regardless. If I press the buttons(power and vol up), to go into recovery, it just shows an android with a warning sign above it, giving a message saying "Error!" on the bottom. My adb on the computer shows as unauthorized, so I don't know how I can fix this. Google has said the warranty is expired and cannot do anything to help. Ideas to fix? Thanks for help in advance!
Use power and volume down (not up) to go into Fastboot mode. Then flash the stock images
NZedPred said:
Use power and volume down (not up) to go into Fastboot mode. Then flash the stock images
Click to expand...
Click to collapse
I tried that, but whenever I press any button, the phone is never turning completely off unless it dies. Even after that, it goes to the screen showing the secure boot integrity(Press power to continue/stop boot)
How can I completely shut off the device and restart it? And if system is messed up, will that leave my bootloader intact(I'm assuming so as boot is a different partition?)
mycalculations said:
I tried that, but whenever I press any button, the phone is never turning completely off unless it dies. Even after that, it goes to the screen showing the secure boot integrity(Press power to continue/stop boot)
How can I completely **** off the device and restart it? And if system is messed up, will that leave my bootloader intact(I'm assuming so as boot is a different partition?)
Click to expand...
Click to collapse
Does holding down the power button for 5-10 seconds turn it off? Or if you do that does it appear to turn off and then restart?
If that fails to turn it off, try just holding power and volume down for 5 seconds, and if the screen flashes (goes off and then on) let go of the power button but keep holding volume down and hopefully it goes into Fastboot.
That should work unless you have a dodgy power or volume button. The bootloader is completely separate to the boot partition, and the fact that it's doing anything at all suggests that it's still functioning.
Only other option I can think of is trying ADB commands when it's in recovery mode, e.g. adb reboot bootloader. However, if you have the stock recovery, that may not work.
NZedPred said:
Does holding down the power button for 5-10 seconds turn it off? Or if you do that does it appear to turn off and then restart?
If that fails to turn it off, try just holding power and volume down for 5 seconds, and if the screen flashes (goes off and then on) let go of the power button but keep holding volume down and hopefully it goes into Fastboot.
That should work unless you have a dodgy power or volume button. The bootloader is completely separate to the boot partition, and the fact that it's doing anything at all suggests that it's still functioning.
Only other option I can think of is trying ADB commands when it's in recovery mode, e.g. adb reboot bootloader. However, if you have the stock recovery, that may not work.
Click to expand...
Click to collapse
Thank You!!! It didn't work in the bootloop, so I had to let the phone drain its battery and shut itself off, then I was able to enter the bootloader and reinstall lineage. Thanks so much!
mycalculations said:
Hello, I recently came on a pixel phone to build and use lineageOS on. Upon rebuilding, I believe I performed adb sync wrong the device and damaged system. After that, my adb keys became unauthorized and I am unable to access the bootloader menu(I press power and volume, but phone boots into Bootloop). I tried the steps to get to bootloader menu, but the phone doesn't power completely off, and when I press the power button it gives me the launch screen saying press power to pause/continue boot, not allowing me to go into bootloader
My bootloop goes like this: Bootloader integrity screen(bootloader unlocked, cannot be verified) --> Google loading screen --> Android recovery. This shows 2 options with the message, "Can't load Android system. Your data may be corrupt. If you continue to get this message, you may need to perform a factory data reset and erase all user data stored on this device". The two options are to try again or data reset.
I press try again, and the same bootloop ensues, sometimes getting to lineage loading logo, but then back to the same recovery error regardless. If I press the buttons(power and vol up), to go into recovery, it just shows an android with a warning sign above it, giving a message saying "Error!" on the bottom. My adb on the computer shows as unauthorized, so I don't know how I can fix this. Google has said the warranty is expired and cannot do anything to help. Ideas to fix? Thanks for help in advance!
Click to expand...
Click to collapse
Similar problem when i try to flash pixel dust rom through adb sideload... After successful installation reboots to system through twrp it shows no os installed then after i cant get to bootloader only black screen shows no display and now on pc phone not detecting .... connect and disconnect sound is there but nothing on screen
LANDTESTER said:
Similar problem when i try to flash pixel dust rom through adb sideload... After successful installation reboots to system through twrp it shows no os installed then after i cant get to bootloader only black screen shows no display and now on pc phone not detecting .... connect and disconnect sound is there but nothing on screen
Click to expand...
Click to collapse
Is ur bootloader unlocked? If so, use twrp to perform a full wipe and install from twrp as well. Of you can't access trwp, and are in a bootloop, do the same thing I did: let the phone lose all it's battery, so it's outta the loop, connect the phone to a charger, then hold power and volume down. This should get you into bootloader mode where you can then use fastboot to flash twrp.
mycalculations said:
Is ur bootloader unlocked? If so, use twrp to perform a full wipe and install from twrp as well. Of you can't access trwp, and are in a bootloop, do the same thing I did: let the phone lose all it's battery, so it's outta the loop, connect the phone to a charger, then hold power and volume down. This should get you into bootloader mode where you can then use fastboot to flash twrp.
Click to expand...
Click to collapse
Oh so after that i can get to bootloader .....hmm let me try thanks bro
mycalculations said:
Is ur bootloader unlocked? If so, use twrp to perform a full wipe and install from twrp as well. Of you can't access trwp, and are in a bootloop, do the same thing I did: let the phone lose all it's battery, so it's outta the loop, connect the phone to a charger, then hold power and volume down. This should get you into bootloader mode where you can then use fastboot to flash twrp.
Click to expand...
Click to collapse
My bootloader is unlocked but phone not detected on pc only black screen nothing else.... Red light flashes whenever connect to charger

I Flashed My Note 20 Ultra With Recovery.img And Now Its Stuck On Orange State "Bootloader Unlocked" Warning Message!

Ok Guys So I Shouldn't Have Done This But I Used Fastboot To Flash Recovery And I think I Did It Wrong. It Said "ok" And Finished And I Rebooted Phone It Resetted And Then Stuck On The Orange State Bootloader Message. I Do The Recovery Mode And Goes Black And Nothing Is Responsive For a While, Sometimes Longer Than Others. This Happens If I Start Phone Normal Or Try Fastboot Or Download.
Because Of My Mistake I Cannot Connect To Pc Software And Im Not Sure Of What I Can Do. I Feel Like Im Not Going To Like The Answer For This But I Got To Take The Blame For This.
Btw i Have A Samsung galaxy Note 20 Ultra Sm-N986u
I think your phone is hard bricked
so you can't get fastboot using volume up+power or via adb?
rescue from manufacturer site pos or just device not being recognised?
It isn't hard bricked it's just way of Samsung trying to make life of simple people more difficult, people who paid for Samsung phones lots of money.
To sort that screen issues what you can surely do is,
Simply press volup + voldown buttons at the same time, no matter if you're on that orange screen or whatever just press those those two buttons at the same time and keep pressing them while you connect your phone to pc. you will boot into download mode. Then flash stock firmware for your phone. After stock of flashed Reboot and start your phone, go to developer options see if oem unlock option is there if it is then oem unlock it if it is not then go back to settings manually change date to year ago, then go to updates disable auto update, connect to WiFi, and press on update several times untill window shows up saying no updates, then go to developer options you should see oem unlock, unlock it.
Then boot into download mode and make sure you have working copy of recovery.
And make sure you follow instructions of whoever recovery you installed on how to boot into recovery. I have S20 plus and too had troubles with it, and the only working recovery for my phone is twrp customised. To boot into it after flashing recovery from odin auto reboot disabled I pressed voldown and power, USB cable connected, then after screen goes off I changed from voldown to volup while kept pressing power button and cable connected. Orange screen with warning showed up for 5 sec I kept pressing and it bottled to twrp and then I was able to install custom rom beyond rom and while installing in aroma I was able ti choose option to remove orange screen.
That's it.
I ran into the same error. I mistakenly loaded twrp's recovery into userdata instead of ap section. The phone was stuck at the orange screen and nothing was happening whatever i pressed. I waited till the battery to dry out and with 0% battery, i directly connected to pc and was able to get into download mode. Then i flashed stock and everything is now back to normal.
Carl Johnson (Cj) said:
I think your phone is hard bricked
Click to expand...
Click to collapse
Absolutely not

Question what is bootloader/fastboot mode "reason: bootonce-bootloader"?

Hi, ive been having problems with my pixel 7, it seemed like no matter how i flashed it it still wouldnt work 100 percent properly. even if i used android flash tool. So today i flashed the disable-verity/verification flags and then booted into system and I turned off auto system updates and did adb reboot bootloader. It didnt reboot into the bootloader but instead shut off and showed the icon for a battery that wasnt charged. holding voldown and power did notheing immidiately so I unplugged the usb and held power and volume down. It went into the bootloader, however this time the readon was not vol down pressed but "bootonce-bootloader" instead. anyone ever see this or know what this means?
PochiRaccoon said:
Hi, ive been having problems with my pixel 7, it seemed like no matter how i flashed it it still wouldnt work 100 percent properly. even if i used android flash tool. So today i flashed the disable-verity/verification flags and then booted into system and I turned off auto system updates and did adb reboot bootloader. It didnt reboot into the bootloader but instead shut off and showed the icon for a battery that wasnt charged. holding voldown and power did notheing immidiately so I unplugged the usb and held power and volume down. It went into the bootloader, however this time the readon was not vol down pressed but "bootonce-bootloader" instead. anyone ever see this or know what this means?
Click to expand...
Click to collapse
Question: Is your Pixel Carrier Locked?
It's my first post leave some comments if you find it helpful...
I was using a Linux box with a BLU oem USB c charger.. wait till the battery percentage shows 0% or 1% hold the volume down button while pressing the power button just get to the bootloader and ..
Once your able to connect it using fastboot... Either use fastboot reboot recovery or select it from the boot menu..
Download the platform tools from Google.. also the latest OTA for your device.. extract the zip to a your Desktop then toss the compressed OTA... In that folder open terminal or cmd... Run adb sideload OTA.zip..
Reboot one more time to manually enter recovery WIPE DATA nd Factory Reset..
Reboot back to bootloader fastboot reboot sideload or reenter recovery>apply OTA from adb..
Adb devices should return device and sideload... Issues the command adb sideload OTA.zip one last time... Nd your back in business... My friend

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