HELP REQUIRED !! My redmi k20 is not even recognised in fastboot mode - Redmi K20 / Xiaomi Mi 9T Questions & Answers

So im trying to unlock my bootloader of my redmi k20, i have installed adb drivers properly, and adb commands work fine when the phone is on, but as soon as i enter fastboot mode my device does not even appear as an other device or anything in device manager .
Since I've tried fastboot mode on an other phone(redmi note 10 pro) and it was detected as a fastboot device on the same PC, I DONT THINK ITS A PC DRIVER PROBLEM rather the phone problem and im in a disarray rn while being stuck in miui (with alot of bugs) and no future support whatsoever.

sujan smash said:
So im trying to unlock my bootloader of my redmi k20, i have installed adb drivers properly, and adb commands work fine when the phone is on, but as soon as i enter fastboot mode my device does not even appear as an other device or anything in device manager .
Since I've tried fastboot mode on an other phone(redmi note 10 pro) and it was detected as a fastboot device on the same PC, I DONT THINK ITS A PC DRIVER PROBLEM rather the phone problem and im in a disarray rn while being stuck in miui (with alot of bugs) and no future support whatsoever.
Click to expand...
Click to collapse
adb devices
adb reboot bootloader
fastboot devices
Adb and fastboot devices must show the same ID of your phone.
If one works and the other does not, I bet problem must be in the drivers (I use the good, old, Minimal Adb and Fastboot package)
If even adb devices fail, problem may be in the USB cable
Btw, make sure that USB debugging in Developer options is enabled.
For unlocking BL, OEM unlocking must be also enabled

zgfg said:
adb devices
adb reboot bootloader
fastboot devices
Adb and fastboot devices must show the same ID of your phone.
If one works and the other does not, I bet problem must be in the drivers (I use the good, old, Minimal Adb and Fastboot package)
If even adb devices fail, problem may be in the USB cable
Btw, make sure that USB debugging in Developer options is enabled.
For unlocking BL, OEM unlocking must be also enabled
Click to expand...
Click to collapse
As u can see usb debugging and oem unlocking are both enabled
And the device is detected as an adb device but not in fastboot mode,
Nor as an Android or unknown device in Device manager either

sujan smash said:
As u can see usb debugging and oem unlocking are both enabled
And the device is detected as an adb device but not in fastboot mode,
Nor as an Android or unknown device in Device manager either
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Click to collapse
Everything looks correctly set but you could still try another PC and USB cable

zgfg said:
Everything looks correctly set but you could still try another PC and USB cable
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Click to collapse
Well i did that too, tried it on my laptop too no luck there also,
As ive mentioned in the first thread ,
It is detecting redmi note 10 in fastboot mode on the same pc with same cable and everything, but not redmi k20, so its not abt PC drivers its something to do with my phone

Then really a problem with the phone - but I guess, your guarantee period has expired long ago

zgfg said:
Then really a problem with the phone - but I guess, your guarantee period has expired long ago
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Click to collapse
Yep it sucks, Thanks Anyways

Related

ADB doesn't see the phone in fastboot mode (although windows sees it)

Hello,
I'm trying to flash a TWRP, but for some reason the phone doesn't show up any more in adb when in fastboot mode (at the bottom of the phone screen it tells me to connect a USB cable). It was showing fine until yesterday. I have tried several different USB ports. The cable is definitely working (in fact plugging and unplugging it causes Windows to notice and make a sound, and also it works fine in ADB when the phone is booted up.
The only thing that I can think that happened since I had last connected to it in fastboot mode (to unlock the bootloader) is that I connected my PC to a couple other phones (Galaxy S3 and Nexus 5) using them in MTP mode. I have reinstalled Google and universal drivers several times, deleted the device from device manager, etc etc. No good.
Any ideas?
We gonna start off with are you using the right commands? Using Fastboot devices?
You must remember ADB and Fastboot are two different things. ADB is only when the phone is on and fastboot is only in bootloader mode
Simer03 said:
We gonna start off with are you using the right commands? Using Fastboot devices?
You must remember ADB and Fastboot are two different things. ADB is only when the phone is on and fastboot is only in bootloader mode
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Click to collapse
Arghhhh :-|
that was it, I was using adb devices. Thanks! (I feel dumb now)

Bricked Oneplus 2 Not Connecting To PC

- How My Phone Got Bricked?: (Chinese Version Oneplus 2) I Was On Oxygen OS 3.0 And TWRP 3.0 And I Decided To Flash The Resurrection Remix ROM, I Did A Full Wipe And I Installed The Rom And It Failed To Installed The ROM. Now My Phone Is In A Bootloop With No OS Installed. I Have The Chinese Version OP2
- Current State Of My Device: My Device Is In A Bootloop With No OS Installed, I Did Notice That My Phone Was Not Being Recognized VIA Fastboot & ADB On My PC. I Went Fastboot Mode And My Phone Is Not Being Recognized By PC, And I Went To TWRP, ADB Was Not Working And ADB Sideload Is Not Working. I Also Tried A USB OTG With A USB Drive And Still TWRP Recovery Is Not Recognizing It. How Ever When I Connect My Device To PC And Check Device Manager And Press Scan For Hard Ware Changes My Device Shows Up As "COM 1". I Also Did Try To Put My Phone Into Qualcomm Mode Trying Alot Of Key Combinations But My Phone Is Not Getting Into Qualcomm Mode Or It Just Might Be Me Since I Heard Its Tricky For The Phone To Get Into Qualcomm Mode. I Did Try One Click ADB And Fastboot Installed And Qualcomm USB Driver, Still No Luck. And I Did Try The MEGA Unbrick Guide. I Have Tried This With 3 Other Computers Which Are All Running Windows 10 And Turned Driver Signature Enforcement Off And Still No Luck, And Also A PC Running Linux Mint And Still No Luck. Please Help Me And I Will Put All Thanks On All Of Your Replies And I Really Appreciate Your Help!
- Whats Working:
- My Device Charges From The PC And Wall
- I Am Using The Official OP2 Cable
- Can Access Recovery + Fastboot
- Turns On But In A Bootloop
I think it's a bad cable... if you can get into fastboot and the PC with Windows 10 and Linux both don't see it.. cable
Not sure whats needed on windows, since I never use it....but after a fresh install of Ubuntu 16.04 a few days ago, I did have to install a few adb and fastboot packages before my devices were recognized. Do you know if the adb/fastboot packages and they're dependencies are installed on the Linux mint computer?
If yes, power off phone and plug into computer. Then start phone in fastboot mode. Open a terminal on the PC and run "adb devices" (without quotes of course) .....any output on screen?
foomanjackel said:
Not sure whats needed on windows, since I never use it....but after a fresh install of Ubuntu 16.04 a few days ago, I did have to install a few adb and fastboot packages before my devices were recognized. Do you know if the adb/fastboot packages and they're dependencies are installed on the Linux mint computer?
If yes, power off phone and plug into computer. Then start phone in fastboot mode. Open a terminal on the PC and run "adb devices" (without quotes of course) .....any output on screen?
Click to expand...
Click to collapse
Yeah I did try typing ADB devices and Fastboot devices in both twrp and fastboot. I think the issue might be the cable
evertking said:
I think it's a bad cable... if you can get into fastboot and the PC with Windows 10 and Linux both don't see it.. cable
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Click to collapse
Yeah I think the cable is probably the problem. Although my phone chargers with the cable. I will look into buying a new cable soon but its a little expensive. I will try to buy it next week
fahad999 said:
Yeah I think the cable is probably the problem. Although my phone chargers with the cable. I will look into buying a new cable soon but its a little expensive. I will try to buy it next week
Click to expand...
Click to collapse
I'm sure you been reading and seen people with the same cable as ours with the same problem.. works with charging but not adb or fastboot. But you can try to issue a command with it.. fastboot devices does sometimes come back empty.. just try to do OEM unlock for example.
evertking said:
I'm sure you been reading and seen people with the same cable as ours with the same problem.. works with charging but not adb or fastboot. But you can try to issue a command with it.. fastboot devices does sometimes come back empty.. just try to do OEM unlock for example.
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Click to collapse
My cable did used to work with adb and fastboot before, and I did unlock the bootloader with it before. I think now the cable got broken
Same issue working cable
Same issue... but my cable is working fine. I have a 2nd OP2 and tried the qualcomm connect with my cable and volume up, and worked perfect. More over, I swapped motherboards and still didnt work. I have access to twrp on the phone and I can get into fastboot. But no way to connect to my pc

Windows 10 won't Recognize my Phone in Fastboot Mode but ADB Is working

Hey Guys,
i tried to Root my Moto E4 but Unfortunally i cant get Fastboot to work under Windows 10 Home 64 Bit on Both my Notebook and my PC. I installed The Motorola Device Manager (Since it comes with drivers) and installed ADB and Fastboot but once i Reboot into Fastboot Mode it wont Recognize it for flashing. The CMD Just Says Waiting for Device. I have expierience with Rooting other Phones but i never had this much Trouble getting Fastboot to work properly. Would be awesome if u could show me a Solution to this since i really want a Custom Rom.
Gesendet von meinem SM-A300FU mit Tapatalk
There's no trick, it just works. I have Windows 10 64 bit as well and no issues. Maybe you need to update your platform tools (adb and fastboot). Using old ones can be a problem.
What command are you issuing? Just fastboot devices ?
Make sure you're not using a USB 3.0 port on your computer.
madbat99 said:
There's no trick, it just works. I have Windows 10 64 bit as well and no issues. Maybe you need to update your platform tools (adb and fastboot). Using old ones can be a problem.
What command are you issuing? Just fastboot devices ?
Make sure you're not using a USB 3.0 port on your computer.
Click to expand...
Click to collapse
Few other thoughts:
- try a different cable; a cable that works for charging and adb communication may not work with fastboot
- avoid external hubs if possible
- be sure to reboot both devices after switching drivers if communication isn't immediately established
Marc_Xperia said:
Hey Guys,
i tried to Root my Moto E4 but Unfortunally i cant get Fastboot to work under Windows 10 Home 64 Bit on Both my Notebook and my PC. I installed The Motorola Device Manager (Since it comes with drivers) and installed ADB and Fastboot but once i Reboot into Fastboot Mode it wont Recognize it for flashing. The CMD Just Says Waiting for Device. I have expierience with Rooting other Phones but i never had this much Trouble getting Fastboot to work properly. Would be awesome if u could show me a Solution to this since i really want a Custom Rom.
Gesendet von meinem SM-A300FU mit Tapatalk
Click to expand...
Click to collapse
When you say you booted to fastboot what do you mean ?
Did use adb and your phone was recognized and then you issued adb command or what method are you using ....
You need to ensure you establish USB debugging connection first & grant authorization ...once link with authorization has been established run adb ...from adb check if recognized run command to boot to fastboot
So start from the top && go down
ARE YOU CERTAIN YOU USED CORRECT METHOD TO TURN OFF DRIVER VERIFICATION ON WINDOWS 10 && YOUR DRIVER ACTUALLY INSTALLED
Last noteworthy point ... when unlocking my motoE4 I had to boot to bootloader ONLY to use fastboot NOT "FASTBOOT"
Hold power + volume button
Excellent troubleshooting from our community. OP has not come back yet to confirm, ask another question, or simply a thanks. (Maybe he got it) Hopefully he gets it sorted.
Maybe the junior members underestimate just how quick and helpful our little community can be.
@Marc_Xperia Do not forget to install AndroidBootloaderInterface Driver Software. *android_winusb.inf*
Thats what my Problem is. I installed the Latest Android Studio, i have gone to SDK Manager. Installed the Android 7.1 Files and USB Drivers and this happens everytime i want to unlock my BL. And yes i disabled Driver Signing on Windows 10. I call it Fastboot Mode since im Used to Xperias so im Sorry i confused anyone.
Marc_Xperia said:
Thats what my Problem is. I installed the Latest Android Studio, i have gone to SDK Manager. Installed the Android 7.1 Files and USB Drivers and this happens everytime i want to unlock my BL. And yes i disabled Driver Signing on Windows 10. I call it Fastboot Mode since im Used to Xperias so im Sorry i confused anyone.
Click to expand...
Click to collapse
When you authorize your adb connection do you tick or select always allow connections from this device ...the fact that your device is listed as *unauthorised* is a clear indication in your previous attempts you didn't authorize to "allways allow connections" from this device
#result _when you reboot authorization is revoked
Enter bootloader mode the old skool way using your buttons..
# MAKE SURE TO SELECT "ALLOW OEM UNLOCK OPTION IN DEVELOPS settings
1.AUTHORIZE TO "ALWAYS ALLOW CONNECTIONS FROM THIS DEVICE"
2.enter bootloader using hardware keys
3.plug in usb
4.run fastboot devices to force fastboot to start deamon ...
5.once fastboot can see your device run oem unlock
6.DO NOT USE USB 3 port so try different USB ports on pc
7. Alternatively use a live USB of Ubuntu minimal to do the job
--- doesn't seem like driver problem if adb can see your device
See if that works
KevMetal said:
When you authorize your adb connection do you tick or select always allow connections from this device ...the fact that your device is listed as *unauthorised* is a clear indication in your previous attempts you didn't authorize to "allways allow connections" from this device
#result _when you reboot authorization is revoked
Enter bootloader mode the old skool way using your buttons..
# MAKE SURE TO SELECT "ALLOW OEM UNLOCK OPTION IN DEVELOPS settings
1.AUTHORIZE TO "ALWAYS ALLOW CONNECTIONS FROM THIS DEVICE"
2.enter bootloader using hardware keys
3.plug in usb
4.run fastboot devices to force fastboot to start deamon ...
5.once fastboot can see your device run oem unlock
6.DO NOT USE USB 3 port so try different USB ports on pc
7. Alternatively use a live USB of Ubuntu minimal to do the job
--- doesn't seem like driver problem if adb can see your device
See if that works
Click to expand...
Click to collapse
I did all of that. Next Problem when i boot the device with Vol Down + Power and select meta mode. I will get only the Motorola Logo or a Normal Reboot into System. I set everything up in Developer Settings. Enabled Debugging and Allow Bootloader Unlock.
Marc_Xperia said:
I did all of that. Next Problem when i boot the device with Vol Down + Power and select meta mode. I will get only the Motorola Logo or a Normal Reboot into System. I set everything up in Developer Settings. Enabled Debugging and Allow Bootloader Unlock.
Click to expand...
Click to collapse
Why select meta mode ? When you are in bootloader you use your volume keys to navigate between meta, recovery& factory reset & meta and you use your power key to select different modes ...what do you want to do in meta mode ?
When you are in bootloader you are essentially in fastboot mode too so it isn't necessary to choose any of the other options unless you are trying to get into recovery which is pointless if you haven't flashed custom recovery yet ..
I Succeded. I Booted into Bootloader with ADB and took a look at Device Manager to install the Driver Properly.
i followed this guide https://forum.xda-developers.com/moto-e4/how-to/guide-unlock-moto-e4-bootloader-unique-t3654275.
Thank you for all of your Replys.
Moto e4 magisk manger trying to instal magisk hide props config says install failed
happymedium22026 said:
Moto e4 magisk manger trying to instal magisk hide props config says install failed
Click to expand...
Click to collapse
Download manually and flash inside recovery yourself
Safety net says the response is invalid does that affect ny device being rooted
happymedium22026 said:
Safety net says the response is invalid does that affect ny device being rooted
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Click to collapse
No it doesn't. That's an error in magisk manager when you hide the manager app itself. Just use a different safetynet checker app if you want to check safetynet.
Why are you posting this stuff in this thread?

Can't use fastboot on SM-A205U

I have my phone on bootloader mode, and "Android Bootloader Interface" is listed there. Even if I install the Samsung driver of the same name, it still says "no drivers are installed for this device". Fastboot commands won't work even though adb works perfectly fine
AOSP100 said:
I have my phone on bootloader mode, and "Android Bootloader Interface" is listed there. Even if I install the Samsung driver of the same name, it still says "no drivers are installed for this device". Fastboot commands won't work even though adb works perfectly fine
Click to expand...
Click to collapse
Update: Replacing the Google drivers (ADB, bootloader, etc) with Samsung ones in device manager broke everything so I had to reinstall the Samsung USB drivers, and uninstall platform-tools and the Google drivers through Android Studio
Adb/fastboot drivers work with Samsung drivers, not against.
Install both, don't set a preferred driver.
After that connect your phone while it's active on the main OS, the Samsung drivers will then properly install for your device.
Once the set-up is finished, boot into fastboot and plug your phone in using USB.
You computer should install generic drivers or specified bootloader drivers.
ninjasinabag said:
Adb/fastboot drivers work with Samsung drivers, not against.
Install both, don't set a preferred driver.
After that connect your phone while it's active on the main OS, the Samsung drivers will then properly install for your device.
Once the set-up is finished, boot into fastboot and plug your phone in using USB.
You computer should install generic drivers or specified bootloader drivers.
Click to expand...
Click to collapse
The driver issue was fixed by turning USB debugging back on, as I forgot to after I tested the validity of that done to death method to enable the OEM unlocking option, of setting the clock a week back and all, which my prediction was right of it being complete garbage. ADB now detects my device again and I'm able to reboot into the bootloader, but fastboot still does absolutely nothing
AOSP100 said:
The driver issue was fixed by turning USB debugging back on, as I forgot to after I tested the validity of that done to death method to enable the OEM unlocking option, of setting the clock a week back and all, which my prediction was right of it being complete garbage. ADB now detects my device again and I'm able to reboot into the bootloader, but fastboot still does absolutely nothing
Click to expand...
Click to collapse
Yeah, sadly the a205u will probably never get root or custom ROMs. We have an extremely small chance since Samsung promised two major updates for the A20.
Either way, https://forum.xda-developers.com/android/software/tool-universal-fastboot-adb-tool-t3475832/amp/
Has the fastboot drivers if you haven't tried that one yet.
.

Fastboot not finding device

Hey, I just bought an S7 Edge SM-G950U, the att&t version, SM-G950A. I heard some say that it's not possible to unlock its bootloader, but the OEM unlock option turned out to be available in developer options. However, I'm having a hard time properly installing its drivers, whichever adb driver I use, the driver still shows a yellow warning and the error is that the device can't be started. The device shows up with adb devices when the device is on, but it doesn't neither with fastboot devices nor adb devices when it's in download mode. I'm trying to install TWRP, the hero 2 version. Any help would be appreciated. Thanks in advance
If you in Windows Device Manager find any device with yellow mark right on the device, then the driver installed for it isn't suitable: uninstall it, get Samsung USB Driver and install it.
Samsung devices don't know of a Fastboot mode: there it's called Download mode. You can't run any Fastboot command in this mode.
ADB operates on Android OS, not on device's bootloader, hence it's not working when running the device in Download mode.
Thanks for the prompt reply. I used a different laptop and managed to install the drivers properly, no warnings. However, the result is the same. You mention how I can't run fastboot commands in Download mode, where can I run them? Only Odin is working in that mode now, but I gotta try to unlock the bootloader. A lot of people are saying that this model can't be unlocked, even though the OEM unlock checkbook in the Developer settings is there. Any advice is appreciated
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Gearninja said:
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