fastboot oem unlock returns nothing for Panasonic T40 in Windows - Android Q&A, Help & Troubleshooting

I want to unlock my phone for installing a ROM and I have setup the Android SDK alongwith all the drivers USB debugging ON, but 'fastboot oem unlock' is resulting in three dots (...) nothing else. Phone keeps displaying the '=>Fastboot mode' text. 'fastboot-windows oem unlock' results as command not recognized. 'adb devices' and 'fastboot devices' both successfully give the serial numbers. 'fastboot oem device-info', 'fastboot flashing get_unlock_ability', 'fastboot flashing unlock' all these also result in three dots (without the text of <waiting for device>).
'flashall' without unlocking failed.
I have also finished trying 3 different data cables with 4 computers. I don't have any linux around me, only Windows 7, 8 and 8.1. Also tried with root and without root (Rooted the phone with Kingo) and tried to run all the commands from the SDK folder as well as administrator.
Please help me with unlocking the oem.
General info: the phone is having Android 4.4.2. Willing to install android 5.1.1.

I have the same problem! Please help

Can you see Written fastboot in fastboot mode?
sent from moto g2014 with cm13

AshwinBhosle said:
I want to unlock my phone for installing a ROM and I have setup the Android SDK alongwith all the drivers USB debugging ON, but 'fastboot oem unlock' is resulting in three dots (...) nothing else. Phone keeps displaying the '=>Fastboot mode' text. 'fastboot-windows oem unlock' results as command not recognized. 'adb devices' and 'fastboot devices' both successfully give the serial numbers. 'fastboot oem device-info', 'fastboot flashing get_unlock_ability', 'fastboot flashing unlock' all these also result in three dots (without the text of <waiting for device>).
'flashall' without unlocking failed.
I have also finished trying 3 different data cables with 4 computers. I don't have any linux around me, only Windows 7, 8 and 8.1. Also tried with root and without root (Rooted the phone with Kingo) and tried to run all the commands from the SDK folder as well as administrator.
Please help me with unlocking the oem.
General info: the phone is having Android 4.4.2. Willing to install android 5.1.1.
Click to expand...
Click to collapse
A lot of phones have a code you need to enter along with the fastboot command to unlock. Check manufacturer's website.
Moto phones, several lenovo phones, etc.
---------- Post added at 08:34 AM ---------- Previous post was at 08:33 AM ----------
neeraj.lambaa said:
Can you see Written fastboot in fastboot mode?
sent from moto g2014 with cm13
Click to expand...
Click to collapse
Not all phones show that. Some phones just show the device logo splash screen.

dev.kasibhatla said:
A lot of phones have a code you need to enter along with the fastboot command to unlock. Check manufacturer's website.
Moto phones, several lenovo phones, etc.
---------- Post added at 08:34 AM ---------- Previous post was at 08:33 AM ----------
Not all phones show that. Some phones just show the device logo splash screen.[/QUOTE
Hey Do You Have Custom ROM?
Click to expand...
Click to collapse

KickAss101 said:
dev.kasibhatla said:
A lot of phones have a code you need to enter along with the fastboot command to unlock. Check manufacturer's website.
Moto phones, several lenovo phones, etc.
---------- Post added at 08:34 AM ---------- Previous post was at 08:33 AM ----------
Not all phones show that. Some phones just show the device logo splash screen.[/QUOTE
Hey Do You Have Custom ROM?
Click to expand...
Click to collapse
I'm sorry I don't own that phone. But I've built lineage ROMS for Lenovo zuk z2 plus.
Click to expand...
Click to collapse

Related

How to unlock bootloader of zenpad 7 z370cg (P01V) ?

Good day!
Im trying to unlock bootloader to root the tab. Generally, i have followed a guide in a thread posted in this site (rooting zenpad c7 z170c) which was claimed to work with z370 by some. There were no problems encountered when using the method except when im already in fastboot, commands i enter like "fastboot oem unlock" return a "failure unknown command " from the prompt. I tried another command "fastboot flashing unlock" but the prompt returned "failure remote failure".
After that, i tried using "fastboot getvar all" and showed that bootloader is secured and still locked. I even tried "fastboot boot [root image name].img" but would cause an error since device is still locked.
I used win7 while doing this and got the adb installer 1.4.3 from a thread here.
All help is greatly appreciated.thanks
Hello Friend! I also problema? yourself have solved? can you help me?
Inviato dal mio ASUS_Z00A utilizzando Tapatalk
Check out what worked for me!
alexjesse said:
Good day!
Im trying to unlock bootloader to root the tab. Generally, i have followed a guide in a thread posted in this site (rooting zenpad c7 z170c) which was claimed to work with z370 by some. There were no problems encountered when using the method except when im already in fastboot, commands i enter like "fastboot oem unlock" return a "failure unknown command " from the prompt. I tried another command "fastboot flashing unlock" but the prompt returned "failure remote failure".
After that, i tried using "fastboot getvar all" and showed that bootloader is secured and still locked. I even tried "fastboot boot [root image name].img" but would cause an error since device is still locked.
I used win7 while doing this and got the adb installer 1.4.3 from a thread here.
All help is greatly appreciated.thanks
Click to expand...
Click to collapse
In this LINK: http://forum.xda-developers.com/and...-c-7-0-z170c-p01z-root-method-t3311752/page21
---------- Post added at 10:34 AM ---------- Previous post was at 10:32 AM ----------
... even though my experience (in:http://forum.xda-developers.com/and...-c-7-0-z170c-p01z-root-method-t3311752/page21 ) of not having to lose my data, apps and settings was a BONUS, do BACK UP your data, in case something different turns up for you.
good luck!!!

Unlocking bootloader and/or checking status

I have a generic device when i can't check the status with "*#*#7378423#*#*" it doesn't bring anything up. When i use adb to reboot into the bootloader if i run "fastboot oem device info" or "fastboot oem unlock" it returns "..." never finishing.if i unplug the device i get failed (status read failed (too many links)) i think that's normal from searching but not sure anyways does anyone know an alternative method to check the bootloader status and something i could do to unlock it if its locked?
Edit another question i know recoveries can be flashed with a locked bootloader at least sometimes because i've done it but i can't find out if that is always the case, can they always or basically always be flashed if you have root? also if there are any exceptions to this and can they be flashed from adb, i used an app to do so and another one lol can recovery imgs have spaces in their name if i wish to rename
This is the case with roms too
I can't think of a way to get bootloader status other than fastboot (not all devices have access to fastboot)
download adb & fastboot for windows
Click Win+R >> Type "cmd"
connect your device with a good USB cable
Type: cd c:\adb
Type: adb reboot fastboot
Type: adb reboot bootloader
if nothing special happens (if it restarts normally and does not enter a special screen or something) then your device doesn't have fastboot access
if your device enters a new screen then it is probably in fastboot state (then you can continue)
Type: fastboot devices
(you should see your device listed)
Type: fastboot oem device-info
Hit Thanks :good: if this helped!
NHK said:
This is the case with roms too
I can't think of a way to get bootloader status other than fastboot (not all devices have access to fastboot)
download adb & fastboot for windows
Click Win+R >> Type "cmd"
connect your device with a good USB cable
Type: cd c:\adb
Type: adb reboot fastboot
if nothing special happens (if it restarts normally and does not enter a special screen or something) then your device doesn't have fastboot access
if your device enters a new screen then it is probably in fastboot state (then you can continue)
Type: fastboot devices
(you should see your device listed)
Type: fastboot oem device-info
Click to expand...
Click to collapse
It should be
Code:
adb reboot bootloader
And if you are using a MTK device, you can check bootloader status by
Code:
fastboot getvar all
---------- Post added at 10:47 AM ---------- Previous post was at 10:44 AM ----------
ARandomNoob said:
I have a generic device when i can't check the status with "*#*#7378423#*#*" it doesn't bring anything up. When i use adb to reboot into the bootloader if i run "fastboot oem device info" or "fastboot oem unlock" it returns "..." never finishing.if i unplug the device i get failed (status read failed (too many links)) i think that's normal from searching but not sure anyways does anyone know an alternative method to check the bootloader status and something i could do to unlock it if its locked?
Edit another question i know recoveries can be flashed with a locked bootloader at least sometimes because i've done it but i can't find out if that is always the case, can they always or basically always be flashed if you have root? also if there are any exceptions to this and can they be flashed from adb, i used an app to do so and another one lol can recovery imgs have spaces in their name if i wish to rename
Click to expand...
Click to collapse
If you have MTK device, using adb and fastboot you can check bootloader status
Code:
fastboot getvar all
Augustoandro said:
It should be
Code:
adb reboot bootloader
And if you are using a MTK device, you can check bootloader status by
Code:
fastboot getvar all
---------- Post added at 10:47 AM ---------- Previous post was at 10:44 AM ----------
If you have MTK device, using adb and fastboot you can check bootloader status
Code:
fastboot getvar all
Click to expand...
Click to collapse
You're right
I always write fastboot instead of bootloader when typing fast
I don't even have fastboot on my galaxy s5 so i'm sorry for typing something wrong lol
i will fix my reply
---------- Post added at 12:14 PM ---------- Previous post was at 12:04 PM ----------
Augustoandro said:
...
Click to expand...
Click to collapse
and how to get bootloader status on a samsung device without fastboot?
"adb reboot bootloader" enters download mode (only detected in odin, no fastboot or adb)
NHK said:
It should be
And if you are using a MTK device, you can check bootloader status by
---------- Post added at 10:47 AM ---------- Previous post was at 10:44 AM ----------
If you have MTK device, using adb and fastboot you can check bootloader status
You're right
I always write fastboot instead of bootloader when typing fast
I don't even have fastboot on my galaxy s5 so i'm sorry for typing something wrong lol
i will fix my reply
---------- Post added at 12:14 PM ---------- Previous post was at 12:04 PM ----------
and how to get bootloader status on a samsung device without fastboot?
"adb reboot bootloader" enters download mode (only detected in odin, no fastboot or adb)
Click to expand...
Click to collapse
I don't know how to do it.
If you find a way to get bootloader status without fastboot, inform me about it.
Augustoandro said:
I don't know how to do it.
If you find a way to get bootloader status without fastboot, inform me about it.
Click to expand...
Click to collapse
that's a real bummer .. I'm programming an app that has a part which needs to check bootloader status...
but i can't find any way to do it on samsung (at least on my phone)
I mean for other devices it is just a matter of writing the code, because i know how to do it.. but on samsung it does not work this way
---------- Post added at 06:52 AM ---------- Previous post was at 06:36 AM ----------
Hey, check this out
https://android.stackexchange.com/q...loader-status-on-galaxy-s5-and-below-using-ad
On Samsung devices, if there is no OEM unlock in the Developer Settings, then the bootloader is unlocked by default. OEM lock is enabled on carriers models only.
Moreover Samsung devices don't have fastboot, they have a proprietary protocol instead.
Click to expand...
Click to collapse
So I guess i'll have to program my app to either check for the existence of that option in settings, or use fastboot if available

can't unblock bootloader please help

i tried everything but I'm stuck here:
redmi is on fastboot mode but can't click unlock button
and can't also connect to pc suite , it says to connect usb but nothing happens, i istalled every driver adb ecc...
Could you help me please?
alessio9899 said:
i tried everything but I'm stuck here:
redmi is on fastboot mode but can't click unlock button
and can't also connect to pc suite , it says to connect usb but nothing happens, i istalled every driver adb ecc...
Could you help me please?
Click to expand...
Click to collapse
Cek mi acount . Usb debuging , open oem.
Use miflash unlock latest..work fine for me.
already did but nothing : (
alessio9899 said:
already did but nothing : (
Click to expand...
Click to collapse
Adb reboot-fastboot ?
ReDuXX528 said:
Adb reboot-fastboot ?
Click to expand...
Click to collapse
if you mean this yes
all u got to do is press power + volume down button while ur phone i switched off ater that connect usb and everything will be fine
Nah. Turn on usb debugging, then plug phone to pc, then launch cmd.exe and run "adb reboot fastboot"
ReDuXX528 said:
Nah. Turn on usb debugging, then plug phone to pc, then launch cmd.exe and run "adb reboot fastboot"
Click to expand...
Click to collapse
IT says, adb is not recognized.
Aww.. You have to run adb manually. Look for some tutorials.
---------- Post added at 03:43 PM ---------- Previous post was at 03:38 PM ----------
It looks like drivers arent installed tho
ReDuXX528 said:
Aww.. You have to run adb manually. Look for some tutorials.
---------- Post added at 03:43 PM ---------- Previous post was at 03:38 PM ----------
It looks like drivers arent installed tho
Click to expand...
Click to collapse
i istalled it from this link : https://forum.xda-developers.com/showthread.php?t=2588979
and now from cmd i can reboot but still not in fastboot, just reboot normally, and unlock button is still gray
Try that vol- and power combo again now. You may also try adb reboot-fastboot. I dont remember exact command
ReDuXX528 said:
Try that vol- and power combo again now. You may also try adb reboot-fastboot. I dont remember exact command
Click to expand...
Click to collapse
yes, i can access to fastboot mode with vol - and power but still button is grey on mi unlock
Restart pc and if that doesnt work just look for older version of miunlock. I used different version and it worked
just boot your phone normally, then go to the directory where your adb is with cmd, using "cd" command, after that, confirm that device is detected with "adb devices". If it says "xxxxxxxxxxxxxx device" then you can "adb reboot bootloader". Now the phone should reboot and a MI russian mascot thingy will appear with fastboot labeled. after that, try "fastboot devices" to see if its recognized, if its recognized , you should be able to unlock it now , ps adb needs you to enable developer settings and also usb debugging
now i try thanks, could you tell me just one more thing? what does should be appear in device manager during system on and in fastboot mode? when system is on :
pic upload
and this once in fastboot:
pic upload
is this correct?
downloaded a older version and now it stucks at 50% of unblocking but it's something!
Check the usb driver , if its ok then try 3 times daily with correct method
Sent from my Redmi Note 4 using XDA-Developers Legacy app
free image hosting
but if i use last mi unlock app i can't click on unlock button...
I also tried using the old app to bypass the waiting time for unlock, got the same message - so you need to work with the new app.
Btw, have you synced mi account in your phone? At least do it once and I hope you followed the instructions and applies for unlock request and got the verification messages thereafter?
If you missed any, could be the reason for this.
i did unlock reqeust for my last redmi note 3 pro so i just tried to use unlock app but have all the problems i said to you, i already registered mi account on phone and made the track verification. Nothing.

Lg q6 lg-m700a unlock bootloader

how i unlock bootloader in this phone?
when i use adb and write command "adb reboot bootloader" the phone restart and no in fastboot mode, can i help me please
https://www.xda-developers.com/how-to-discover-hidden-fastboot-commands/
---------- Post added at 03:30 AM ---------- Previous post was at 03:20 AM ----------
https://www.xda-developers.com/how-to-discover-hidden-fastboot-commands/
Thank you forum the link but in LG q6 nothing of command in that post function, the phone don't start in recovery mode and fastboot command do not respond
Same problem with my q6
satellitea31 said:
Thank you forum the link but in LG q6 nothing of command in that post function, the phone don't start in recovery mode and fastboot command do not respond
Click to expand...
Click to collapse
same here, did you find any solution? please share
Nothing , at this time never solution
satellitea31 said:
how i unlock bootloader in this phone?
when i use adb and write command "adb reboot bootloader" the phone restart and no in fastboot mode, can i help me please
Click to expand...
Click to collapse
There is no official unlock for Q6 by LG.
You will need octopus box lg tool for unlock it.
Same here with LG-M700H
I have the model M700H, same issue... Someone have good news??? I want to root this device.
Regards.
developer.lge.com/resource/mobile/RetrieveBootloader.dev?categoryId=CTULRS0703
The following devices will support unlocking the bootloader:
• LG V30: H930 and H930G for the European market
• LG G6: US997.USA for the U.S. open market
• LG G6: H870 for the European market
• LG V20: US996.USA for the U.S. open market
• LG V10: H960A for the European market and Android M (Except France)
• LG G5 SE: H840 for the European market
• LG G5: RS988.USA for the U.S. open market
• LG G5: H850 for the European market
• LG G4: H815 for the European market
Unlocking the Bootloader will only be supported on selected devices.
Fataldose said:
There is no official unlock for Q6 by LG.
You will need octopus box lg tool for unlock it.
Click to expand...
Click to collapse
This is the first time I'm hearing of this device. Is it similar to the Z3X boxes for Samsungs? Is it actually able to unlock the bootloader or is it only unlocking sim locks?
did you try to select unlock oem button trough developer option?
satellitea31 said:
how i unlock bootloader in this phone?
when i use adb and write command "adb reboot bootloader" the phone restart and no in fastboot mode, can i help me please
Click to expand...
Click to collapse
After unlock developer menu I have seen this button showing the select OEM unlock option. Maybe could help
zetaborg76 said:
After unlock developer menu I have seen this button showing the select OEM unlock option. Maybe could help
Click to expand...
Click to collapse
Nope that doesn't help anyhow
finally cracker the lgq6
charanfle said:
same here, did you find any solution? please share
Click to expand...
Click to collapse
first time doing any of this and pure luck maybe enabled fastboot mode on my LGQ6
sugarshane1 said:
first time doing any of this and pure luck maybe enabled fastboot mode on my LGQ6
Click to expand...
Click to collapse
What
Does anyone have the backup of the "stock-laf.img" to recover the download mode?
The first thing is in your LG Q6 go in "Settings> On the Phone" and click 7 times on the "System Version" until the message that you enabled the developer mode appears.
Go back to the initial settings screen and look for "Developer mode", click on it and look for the "Enable USB debugging and OEM unlock." Option, enabling it.
Connect the device to your computer, open the terminal of your Linux distribution and enter the following commands:
adb devices
If everything is correct, you will be informed a code (id) in your terminal, in this case, just proceed with the commands below. If you stay in the "Waiting Device" message, disconnect your device from the USB port and try again, be sure to check if the previously informed step has been taken care of.
adb reboot bootloader
fastboot oem device-id
Copy the code that will be generated, access the LG page and paste the code that was generated in the terminal, as indicated by the LG website, along with the IMEI of your phone. The site will provide you with a "Unlock.bin" to download, download on your machine, the directory where the file is, right click and choose "Open terminal here" and on the terminal run the following command:
fastboot flash unlock unlock.bin
Once you've done that, you just have to restart your device with the command:
fastboot reboot
Ready! Your LG Q6 has the unlocked bootloader!
Fabiompereira said:
Ready! Your LG Q6 has the unlocked bootloader!
Click to expand...
Click to collapse
Have you tried this yourself?
Do you know that as of today you can't unlock the Q6 model?
Why would you post this nonsense?
just wanted to share something I saw on the internet, sorry for my failure.
Lg q6 bootloader
I also have a big problem with this because I also have LG M700A but I enter an adb reboot bootloader and normally reboots
Download Mod in LG q6 M700
satellitea31 said:
how i unlock bootloader in this phone?
when i use adb and write command "adb reboot bootloader" the phone restart and no in fastboot mode, can i help me please
Click to expand...
Click to collapse
I have this phone. For go to bootloader you must turn off your phone and connect USB cable and hold volume+ key both. It is download mod.?
For root I try kingroot,vroot,LGoneClickRoot bot not have any result?
try this you can get it i am sure.
orangecoloured said:
Have you tried this yourself?
Do you know that as of today you can't unlock the Q6 model?
Why would you post this nonsense?
Click to expand...
Click to collapse
It will get
---------- Post added at 06:16 PM ---------- Previous post was at 06:12 PM ----------
Dcopz said:
It will get
Click to expand...
Click to collapse
I can't insert the link sorry
Site is blocking me to post
---------- Post added at 06:31 PM ---------- Previous post was at 06:16 PM ----------
Dcopz said:
It will get
---------- Post added at 06:16 PM ---------- Previous post was at 06:12 PM ----------
I can't insert the link sorry
Site is blocking me to post
Click to expand...
Click to collapse
How to Unlock the Bootloader
Take the following steps to unlock the bootloader on your phone and to download Customized kernel and android binary:
1. Click Starting Unlocking the Bootloader at the bottom of this page to start the bootloader unlock process. If you are not logged into your account, we ask that you log in.
2. Legal Terms will be displayed on your screen. After reading the terms, if you would like to continue to unlock the Bootloader, then click I Accept.
3. Your name and email address will be displayed. Check your name and email address. If you want to change your email address, click Change. You must verify your new email address after changing it.
4. Enter the first 15 digits of your phone’s IMEI number. You can view the IMEI number by entering *#06# on your phone or selecting the Settings > About phone > Status > IMEI menu.
5. Download and install the latest Android SDK (adb.exe, AdbWinApi.dll, fastboot.exe) from developer.android.com.
6. Create a new folder (for example: C:\tools) and copy the following three files to the new folder:
• Adb.exe
• AdbWinApi.dll
• Fastboot.exe
You can find these three files from: sdk\platform-tools
7. Enable USB-Debugging on your phone. USB-Debugging is required for the commands “adb” and “fastboot” to work. To enable USB-Debugging, go to Settings > About phone > Software info and tap Build number 7 times. Return to the previous screen, select Developer options and enable USB-Debugging.
8. Enable OEM unlock on your phone. Activating the "Enable OEM unlock" is necessary for the bootloader unlock. To enable OEM unlock, go to Settings > Developer options and check Enable OEM unlock.
9. Enter your phone’s unique Device ID. You can view the Device ID by connecting your phone to the PC using a USB cable and entering "adb reboot bootloader" in DOS command window of the folder you created in previous step (for example: C:\tools). Your phone will reboot into the fastboot mode. Enter "fastboot oem device-id" in DOS command window.
10. This fastboot command will return a character string. This is the Device ID which is needed to generate your unique unlock key.
Example Device ID (PC User)$ fastboot oem device-id
(bootloader)-----------------------------------------------------------------
(bootloader) Device-ID
(bootloader) CD58B679A38D6B613ED518F37A05E013
(bootloader) F93190BD558261DBBC5584E8EF8789B1
(bootloader)-----------------------------------------------------------------
To generate your unlock key, you will need to paste together the 2 lines of output into one continuous string without "(bootloader)" or white spaces. In the example above, the Device ID would be:
CD58B679A38D6B613ED518F37A05E013F93190BD558261DBBC5584E8EF8789B1
11. Click Confirm. If your IMEI number and Device ID are valid, the bootloader unlock key will be sent to your email.
12. Download bootloader unlock key to PC.
13. Connect your phone to PC using USB cable and enter "adb reboot bootloader" in DOS command window. Your phone will reboot into the fastboot mode.
14. Go to the directory where you downloaded your bootloader unlock key.
15. Enter "fastboot flash unlock unlock.bin" in DOS command window.
“unlock.bin” is the bootloader unlock key you received in the email.
Reboot your phone by entering “fastboot reboot” in DOS command window.
16. Connect your phone to a PC using a USB cable and enter "adb reboot bootloader" in DOS command window. Your phone will reboot into the fastboot mode.
You can check if the device is successfully unlocked by entering "fastboot getvar unlocked" and verifying that the response is "unlocked: yes"
You can now download a custom android binary.
1. Run the desired fastboot command.
*Quick Guide
i. flash : fastboot flash
Ex) fastboot flash boot boot.img
ii. erase : fastboot erase
Ex) fastboot erase boot
iii. reboot : fastboot reboot OR fastboot reboot-bootloader
2. Exit fastboot mode and reboot.
i. Press the Power button for 10 seconds to turn off the device.
ii. Use 'fastboot reboot' command if the fastboot prompt is available.
Ok
The link for getting the unlock.bin file will sent below
---------- Post added at 06:39 PM ---------- Previous post was at 06:31 PM ----------
Ok

[ZTE K87CA] can't unlock bootloader

I got to the fastboot screen on my ZTE K87CA tablet, but when I try to type the command "fastboot flashing unlock" or "fastboot oem unlock", it just shows "waiting for devices". I have searched quite a bit over the web but I have not found a post where someone actually was able to unlock the bootloader on this device.
This is my first time rooting a device
I am trying to find ways to speed up this tablet and free up ram and stuff and rooting the device seemed to be necessary.
If you have answers to my problem please say so.
Coke3 said:
I got to the fastboot screen on my ZTE K87CA tablet, but when I try to type the command "fastboot flashing unlock" or "fastboot oem unlock", it just shows "waiting for devices". I have searched quite a bit over the web but I have not found a post where someone actually was able to unlock the bootloader on this device.
This is my first time rooting a device
I am trying to find ways to speed up this tablet and free up ram and stuff and rooting the device seemed to be necessary.
If you have answers to my problem please say so.
Click to expand...
Click to collapse
Have you enabled OEM unlock in stock rom developer options first with stock rom booted?
Also when device is in bootloader type fastboot devices to see if it is registering your device. If it isn't try getting latest fastboot tools from Android sdk and turning off secure boot if you are on windows 11.
toolhas4degrees said:
Have you enabled OEM unlock in stock rom developer options first with stock rom booted?
Also when device is in bootloader type fastboot devices to see if it is registering your device. If it isn't try getting latest fastboot tools from Android sdk and turning off secure boot if you are on windows 11.
Click to expand...
Click to collapse
I did all the developer settings like usb debugging and and oem unlock.
When the tablet was on normally running, I did "adb devices" and it showed my tablet, but when it was in fastboot mode I did "fastbook devices" and it didn't show anything.
I think I might have thought of something though. When I downloaded the the usb drivers or something; I downloaded the K87CC instead of the K87CA because I couldn't find one for it so that might be the problem
Look into turning off secure boot if using windows 11, and download latest fastboot sdk package
I'm kind of new to this and don't really know where to download all this stuff. could you send me a link?
Not sure if this is the right place to ask this question, but, have you had any chance to find and install any custom rom in ZTE K87CA? My tablet has become extremely slow and I would like to install something lighter.
thanks.

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