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[SOLVED]fastboot unlock bootloader problem - memo pad ME180A [SOLVED]

hi every one.
i need to unlock bootloader to use my tablet.
i go to fastboot mode with (power)+(VOL-) and PC can see devices.
attachment 1 (DM.jpg)
i run "fastboot devices" command and show me device is connected.
when i run "fastboot oem unlock" or "fastboot oem unlock61646" command , say :
Code:
OKAY [0.001s]
finished . total time : 0.002s
like attachment 2(cmd.jpg)
but after all this , boot loader won't be unlocked.
and i can not flash CWM recovery . this happen:
attachment 3 (cmd2.jpg)
any body can help me?
important notes:
USB debugging is off.
i root this tablet a few mounts ago and change DPI with "DPI changer" , after reset , tablet turn on and boot successfully but when boot complete show "UI" error repeatedly and tablet is completely useless.
i access to stock recovery.
i guess this is a driver problem, any body of asus memopad users that unlock their bootloader with fastboot have the driver?
Solution found
use this link ,
http://forum.xda-developers.com/android/development/rom-asus-memo-pad-8-me180a-ww-3-1-0-42-t3027620/post60970877#post60970877
using post #3
sorry for my bad english

Troubles with my HTC One Mini 2

Hey,
My phone is stuck in the fastboot mode, without any OS, nothing works... no Recovery ,...
S-ON, no-debugging usb, Bootloader locked and can't unlock him... I already tried with htc-dev, everything works but nothing appair on my screen to confirm the unlocking.
I'm really stuck, searched lot of things on google, ....
I used fastboot, and ADB, the first one recognize my device, but the last one not. I can't boot on RUU mode neither.
Any ideas?

AzweL said:
My phone is stuck in the fastboot mode, without any OS, nothing works... no Recovery ,...
Click to expand...
Click to collapse
The very first thing I recommend you to do, is to download the right recovery and install it via command
Code:
fastboot flash recovery recovery.zip
Let me know if you run into any further troubles.

AzweL said:
Hey,
My phone is stuck in the fastboot mode, without any OS, nothing works... no Recovery ,...
S-ON, no-debugging usb, Bootloader locked and can't unlock him... I already tried with htc-dev, everything works but nothing appair on my screen to confirm the unlocking.
I'm really stuck, searched lot of things on google, ....
I used fastboot, and ADB, the first one recognize my device, but the last one not. I can't boot on RUU mode neither.
Any ideas?
Click to expand...
Click to collapse
Hi,
Frist in boot loader check your OS version it should be something like 2.19.401.2 or lower than this.
NB: ALWAYS TRY WITH MORE THAN 75% BATTERY, AND THAT FOR ANY CODE TO WORK PROPERLY, MAKE SURE TO SELECT FASTBOOT BY POWER KEY IN BOOTLOADER
Anyway, if you can enter fastboot, then you have some chance of recovering your device and because you have S-Off it is going to be a bit difficult.
First download this stock boot file : https://mega.nz/#!lEAVwRSL!wrP2hi6GEYLeJaPf2ssZo9wCtSi7E4yfyUHgh3Q3XSs
Then place this file in the ADB folder, then run command :
To flash boot file command is:
Code:
- Fastboot Devices (this command is important to know if the device is connected and accepting and responding commands)
- fastboot flash boot boot_signed.mg (assuming this is the name you saved the file with)
- fastboot reboot bootloader
Also download Stock Recovery: https://mega.nz/#!gVJE1Bxa!6SwXStAD8p-XlnQiPkRcdNo_ITFD1ykn-tN6wIBVi1I
Place this in ADB folder and run command:
Code:
fastboot flash recovery stockrec.img // (assuming that is the name you have saved the file with), only after flashing this you will know if the device has any OS, if OS exists it will boot up.
fastboot erase cache
Attempt and let us know how it went...Good Luck

Freeze at boot animation OP3T Help needed

So my OP3 motherboard was damaged and I bought a damaged OP3T (touch display and mic not working).
I took the motherboard of OP3T and used it in the OP3 and tried starting it --> It says battery mismatch.
I exchanged the batteries and used the OP3T battery in OP3 - -> So now the device starts and mid boot animation it freezes and restarts automatically indefinitely.
What have I tried,
I tried using the unbrick guide for both oneplus 3 and oneplus 3t and the unbrick tool for OP3T shows success but on turning on the device still freezes mid boot animation.
I cant unlock the bootloader (used "fastboot oem unlock") with error (Remote: oem unlock is not allowed)
I tried using older roms 3.5.3 and the latest 4.1.6 still no luck.
So please if you have any ideas please help me.
** I can still access bootloader and the recovery but cant flash twrp due to locked bootloader.
Will post a gif if needed (might be long - 1 min)

Try fastboot -w ?

Oblivionevil said:
Try fastboot -w ?
Click to expand...
Click to collapse
already tried that
Erased all the partition even recovery and reflashed it with the Flash Tool.
Edit: Sorry, I tried fastboot erase command
This code returns FAILED (remote: partition erase is not allowed)

As always need help on bootloader.... RP2 already unlocked

In few words fastboot works sometimes and ADB works sometimes... let me explain fastboot devices alone does not give me a response but when I input it 2 or 3 times, even if I didnt recieved a result on cmd the RP2 reboot, but when I use fastboot -i 0x1532 (I dont know why) its gives me a my serial of the phone as usual, and using the "-i 0x1532" let me do another few things but cant use flash at all example fastboot -i 0x1532 flash boot boot.img gives me an error and the RP2 just restart and if I do fastboot -i 0x1532 devices two times, it does restart two, already downloaded and installed the usb drivers and fastboot adb too, the RP2 is unlocked and this started happening when I messed up on trying to uninstall magisk so bricked the phone and only could sideload mr3 compatibility (already had updated when tried to uninstall magisk) after that the RP2 just dont respond as before on cmd either adb or fastboot

Fix
I made a thread thought this would help every one having trouble
HTML:
https://forum.xda-developers.com/razer-phone-2/how-to/how-to-fix-fastboot-drivers-t4086479

Question [Fixed] ASUS logo stucks on recovery, only access to bootloader

Hi all,
I'm encountering a very annoying issue with my brand new Zenfone 8.
I wanted to install the last LineageOS image, but now my phone seems stuck.
Here are what I did:
- Unlocked the bootloader: success with the ASUS APK after a few tries (error 11000 and 11006 ans eventually worked).
- Rebooted to bootloader
- Entered into recovery
- Used fastboot to flash the vendor partition.
At this point, everything looked OK. But then.... :
- Powered off the phone and restarted to bootloader.
- Tried to enter into recovery to flash the Lineage Recovery
But at this point, I had a ASUS logo stucked on the screen.
I can't do anything with adb or fastboot commands.
I tried the method explained here (https://www.asus.com/Content/Android-13-Beta/) to rollback to stock Android 12, but nothing happened too: I looked at the shell script (I'm on Linux) and I reckon that it stucks on fastboot command (the phone is in the bootloader).
Any idea about what failed? The last command used (vendor partition flash) said "OKAY".
And especially, what can I do now? Any way to reinstall the ASUS recovery?
Thanks in advance guys.

Not quite sure what your status is if you say "can't do anything with adb or fastboot commands". I've flashed Zenfones a couple of times (my household has 3 Zenfone 8's on LineageOS) and I had one that went into ramdump. I recovered from that using fastboot to manually reflash all 19 firmware partitions, in both slots. That got the phone out of ramdump, and I got to continue the upgrade to the new LineageOS. So: if you can boot to the fastboot environment, then that would be a road that might leaed you out. But if you can't even get a response to the command "fastboot devices" then I don't know of a course of action for you.

To use fastboot commands I had to run the phone into bootloader mode, then to "recovery" and eventually "fastboot" (I'm note 100% sure but it's what I remembered).
Without that, I was unable to use any fastboot commands like device or flash.
And now the issue is that I'm not able to go to recovery/fastboot again, because I have just the ASUS logo and nothing else.
It looks like that the stock recovery was dead, but I don't know why - and I don't know how to fix/reset it.

From the bootloader you should be able to flash the raw image again, it should flash everything

Adaoh said:
From the bootloader you should be able to flash the raw image again, it should flash everything
Click to expand...
Click to collapse
Good to know - but with which commands/tools?
As I said, I was unable to use fastboot commands from my computer on the Zenfone bootloader.
On the bootloader page, I just have "waiting for devices" and noting else. I had to go into the recovery > fastboot to make the commands work.

semurel said:
Good to know - but with which commands/tools?
As I said, I was unable to use fastboot commands from my computer on the Zenfone bootloader.
On the bootloader page, I just have "waiting for devices" and noting else. I had to go into the recovery > fastboot to make the commands work.
Click to expand...
Click to collapse
On Linux and maybe macs too you need to run fastboot commands as Root (sudo fastboot devices) for example. The raw image script should ask you for your Root password for this reason

Yes I know - I well used sudo for all commands.
The ASUS script asks me for password but then does absolutely nothing - not even a print. I waited a few minutes and finally canceled.
For you, fastboot commands should work on the bootloader screen? (I ask that because the script starts by a fastboot command).

semurel said:
Yes I know - I well used sudo for all commands.
The ASUS script asks me for password but then does absolutely nothing - not even a print. I waited a few minutes and finally canceled.
For you, fastboot commands should work on the bootloader screen? (I ask that because the script starts by a fastboot command).
Click to expand...
Click to collapse
Yes, they work from the bootloader, I always run the script from the BL too. Ironically, I had issues running fastboot commands from fastbootd for installing Omnirom, so I did it all in the bootloader and all worked fine.
I am not sure I can help you more at this point, it looks like it maybe got interrupted mid flashing and now something is wrong somewhere. Maybe if you look inside the bash script file you can find the command that it got stuck on and run that manually if you manage to get fastboot command access.

Strange - they have never worked from the bootloader. I tried that before according to the LineageOS wiki. I thought it was a mistake and use the recovery > fastboot to do that. I dont like that - I hope it's not a local version of the Zenfone or something like that.
I'm not at home tonight but yes I'll try to find commands not requiering the fastboot command.

Unfortunately all commands from the script are using fastboot. And as "fastboot devices" sees nothing, I can't do anything.
I've tried from the bootloader screen (with start, recovery, poweroff option) - from the start screen showing unlocked bootloader warning and from the ASUS logo when I try to start the recovery. I've tried the commands/scripts with Linux and Windows: same result.
So :
- I can't use any fastboot commands.
- I don't have the ASUS recovery.
Speaking of the ASUS recovery, I've found screenshots on internet and they don't have a "fastboot" submenu (I'm not sure it's a Zenfone 8). May had I a different version?
I don't like that. If I don't have others option, I guess that the warranty doesn't work because the phone is unlocked?

I eventually found a solution! I've tried with my old OnePlus cable and fastboot commands start working from the bootloader screen.
I have no idea why my other cable was faulty (it can charge the phone and executes commands from the Recovery > Fastboot menu - but not on the BL screen).
Anyway my problem is now fixed.
Thanks all for help and support.