Need help for Asus ME176C -> fastboot starting #1 #2 #3 ... - MeMO Pad 7 Q&A, Help & Troubleshooting

Hello !
I have a problem with my neighbours tablet. I think he made an update when the battery was to low because the tablet was freezing at ASUS logo and nothing more. I took it to try to resolve the problem. I have read all over the internet for ways to repair it but I think I made it worst. Before I could get in droidboot menu (even when the android logo with an exclamation sign and a message that said "No command" I pressed VOL+ and VOL- simultaneously I could enter and choose the options that were in that menu). Anyway, I tried different methods like : Nexus Root Toolkit v2.1.4 (I couldn't unlock bootloader), fastboot commands using cmd, Intel Android Devices Root and others (I can't remember now, because I'm at work...). The last one did something to the tablet (Intel Android Devices Root) : after trying several times I managed to do something different because the tablet was showing other commands on it's screen. After I left it to install the firmware from the pc (I used adb sideload command) it has ended with a black screen with a killer message : fastboot starting / fastboot starting #1 / fastboot starting #2 / fastboot starting #3. From now I don't know what to do anymore because I searched over the internet and they are few links for resolving this problem. I will try in this evening again with adb commands (if I write "adb devices" no devices are shown in the list - I will search also for this problem, even though when I use fastboot devices command its showing me a result.)
Thanks in advance and sorry for my english, if I made mistakes.
Andrei.

Andrew05 said:
Hello !
I have a problem with my neighbours tablet. I think he made an update when the battery was to low because the tablet was freezing at ASUS logo and nothing more. I took it to try to resolve the problem. I have read all over the internet for ways to repair it but I think I made it worst. Before I could get in droidboot menu (even when the android logo with an exclamation sign and a message that said "No command" I pressed VOL+ and VOL- simultaneously I could enter and choose the options that were in that menu). Anyway, I tried different methods like : Nexus Root Toolkit v2.1.4 (I couldn't unlock bootloader), fastboot commands using cmd, Intel Android Devices Root and others (I can't remember now, because I'm at work...). The last one did something to the tablet (Intel Android Devices Root) : after trying several times I managed to do something different because the tablet was showing other commands on it's screen. After I left it to install the firmware from the pc (I used adb sideload command) it has ended with a black screen with a killer message : fastboot starting / fastboot starting #1 / fastboot starting #2 / fastboot starting #3. From now I don't know what to do anymore because I searched over the internet and they are few links for resolving this problem. I will try in this evening again with adb commands (if I write "adb devices" no devices are shown in the list - I will search also for this problem, even though when I use fastboot devices command its showing me a result.)
Thanks in advance and sorry for my english, if I made mistakes.
Andrei.
Click to expand...
Click to collapse
Found it !
http://forum.xda-developers.com/mem...-me176c-cx-t2970049/post64487455#post64487455
A BIG THANKS !!!

Related

[How to] Manually update to 4.2

Figured this would cut down on threads and questions. I have made a video showing how to manually update to 4.1.2 (WILL ALSO WORK FOR 4.2, just use the correct file that I link to) on your Nexus 7.
http://www.youtube.com/watch?v=PwlXQoAzrBE
Hope this helps.
Thank you =) will try
-Google
I hope people actually watch and learn from this tutorial instead of waiting around for some point and click tool powered by unicorn blood and hamsters. It's an excellent tutorial and gets you in touch with your device by using the exact tools Google provided you to use for this exact thing.. Use them, they are invaluable.
This means we can't use the old method of putting update.zip file in the root folder and let the system upgrades by itself.
Terrific video but for one problem: My N7 doesn't seem to want to go into Recovery.
Using adb reboot recovery gets me into the red triangle screen, but pressing Power+VolUp just gets the Google logo and pressing all three buttons just restarts it. Something is screwy and I've wasted about three hours on messing with it. I never get the screen shown at 3:41.
If I cold start it by pressing Power+VolUp+VolDn, it brings up a screen with an Android on its back with the body open and a big green Start pointing to the Power button and arrows next to the volume buttons. In the lower left in white computer type is:
FASTBOOT MODE
PRODUCT NAME - grouper
VARIANT - not defined yet
HW VERSION - ER3
BOOTLOADER VERSION - 3.34
BASEBAND VERSION - N/A
SERIAL NUMBER - xxxxxxxxxxx
SIGNING - not defined yet
LOCK STATE - LOCKED
Pressing up or down twice brings up Recovery and pressing Power switches to a Google logo and that's the end of the show.
I followed your "How to install the Android SDK, ADB and Fastboot on your PC" video without a hitch (thank you for that one, too) and I have USB debugging turned on (as proven by adb reboot recovery working), so what the heck is going wrong with getting it past the red triangle screen?
EDIT: I'm bone stock, no root.
DirkBelig said:
Terrific video but for one problem: My N7 doesn't seem to want to go into Recovery.
Using adb reboot recovery gets me into the red triangle screen, but pressing Power+VolUp just gets the Google logo and pressing all three buttons just restarts it. Something is screwy and I've wasted about three hours on messing with it. I never get the screen shown at 3:41.
If I cold start it by pressing Power+VolUp+VolDn, it brings up a screen with an Android on its back with the body open and a big green Start pointing to the Power button and arrows next to the volume buttons. In the lower left in white computer type is:
FASTBOOT MODE
PRODUCT NAME - grouper
VARIANT - not defined yet
HW VERSION - ER3
BOOTLOADER VERSION - 3.34
BASEBAND VERSION - N/A
SERIAL NUMBER - xxxxxxxxxxx
SIGNING - not defined yet
LOCK STATE - LOCKED
Pressing up or down twice brings up Recovery and pressing Power switches to a Google logo and that's the end of the show.
I followed your "How to install the Android SDK, ADB and Fastboot on your PC" video without a hitch (thank you for that one, too) and I have USB debugging turned on (as proven by adb reboot recovery working), so what the heck is going wrong with getting it past the red triangle screen?
Click to expand...
Click to collapse
I have the same exact same problem, except my bootloader is unlocked. Tried everything I could think of, and it still doesn't go into android recovery.
Insert your USB cable and make sure it's plugged into a charger or PC.. Recovery won't appear unless you are plugged in. It's an odd bug fixed when you update
I've been plugged in to both a charger and the PC. Come on, if I've fired off adb recovery reboot, doesn't that automatically suggest that I'm connected to the computer? I press Power+Volume Up and it does NOT instantly go to the screen it should, but brings up a Google logo and sits there forever.
styckx said:
Insert your USB cable and make sure it's plugged into a charger or PC.. Recovery won't appear unless you are plugged in. It's an odd bug fixed when you update
Click to expand...
Click to collapse
Doesn't work in either case, it just hangs until the hard reboot kicks in.
DirkBelig said:
Terrific video but for one problem: My N7 doesn't seem to want to go into Recovery.
Using adb reboot recovery gets me into the red triangle screen, but pressing Power+VolUp just gets the Google logo and pressing all three buttons just restarts it. Something is screwy and I've wasted about three hours on messing with it. I never get the screen shown at 3:41.
If I cold start it by pressing Power+VolUp+VolDn, it brings up a screen with an Android on its back with the body open and a big green Start pointing to the Power button and arrows next to the volume buttons. In the lower left in white computer type is:
FASTBOOT MODE
PRODUCT NAME - grouper
VARIANT - not defined yet
HW VERSION - ER3
BOOTLOADER VERSION - 3.34
BASEBAND VERSION - N/A
SERIAL NUMBER - xxxxxxxxxxx
SIGNING - not defined yet
LOCK STATE - LOCKED
Pressing up or down twice brings up Recovery and pressing Power switches to a Google logo and that's the end of the show.
I followed your "How to install the Android SDK, ADB and Fastboot on your PC" video without a hitch (thank you for that one, too) and I have USB debugging turned on (as proven by adb reboot recovery working), so what the heck is going wrong with getting it past the red triangle screen?
EDIT: I'm bone stock, no root.
Click to expand...
Click to collapse
Omega360 said:
I have the same exact same problem, except my bootloader is unlocked. Tried everything I could think of, and it still doesn't go into android recovery.
Click to expand...
Click to collapse
I had the exact same issues. Turns out, I had to hold my volume button directly in the middle while holding power.
ShannonMS81 said:
I had the exact same issues. Turns out, I had to hold my volume button directly in the middle while holding power.
Click to expand...
Click to collapse
THIS WORKED!!!!!!
OMFG!!! I burned the time I was going to watch the making of Prometheus Blu-ray trying to get this stupid thing to work! Where were you hours ago, man?!?!? Thank you!!! Better late than never.
Glad you got it.. BTW.. I did-misread what you said and yes, you would have had a USB cable in. All these posts are running together of people asking for help and having issues. Mah poor brain is getting em all mixed together.
Nexus 7 needs a coffee maker attachment!
qbking77 said:
Figured this would cut down on threads and questions. I have made a video showing how to manually update to 4.1.2 on your Nexus 7.
http://www.youtube.com/watch?v=PwlXQoAzrBE
Hope this helps.
Click to expand...
Click to collapse
Great video! I might just be using this in the near future. I plan on waiting for the factory image (I just like having a full install on my devices when possible) instead of using just the zip file (that is if I dont get the update). Although if the update isnt showing up sometime soon then this is going to work for me just fine.
qbking77 said:
Figured this would cut down on threads and questions. I have made a video showing how to manually update to 4.1.2 on your Nexus 7.
http://www.youtube.com/watch?v=PwlXQoAzrBE
Hope this helps.
Click to expand...
Click to collapse
can't enterthe stock recovery since i instaled CWM. removing it would bring the stock back ?
for some reason its not working for me. im fully stock, no root, locked bootloader. my pc recognizes N7 adb host and goes into recovery, but when i write the command "adb sideload 03a4eaf95f73.signed-nakasi-JZO54K-from-JRO03D.03a4eaf9.zip" it doesnt send it and just shows me the help info for adb. any suggestions why?
Thanks in advance
Same issue, when I "adb device" it will sometimes show as "device" and other times as something else (don't recall but not device). I can get into recover via "adb reboot recovery" and then into "update via adb" but when I "adb sideload.....(see above)" it just runs through the different commands as if "sideload" is not an option? Followed the video to a "T" and nothing.....thinking about rooting and doing it the old fashion way but this is the first android device I've had that I've not seen a reason to root right away...maybe should just wait for the OTA?
Ram1500 said:
for some reason its not working for me. im fully stock, no root, locked bootloader. my pc recognizes N7 adb host and goes into recovery, but when i write the command "adb sideload 03a4eaf95f73.signed-nakasi-JZO54K-from-JRO03D.03a4eaf9.zip" it doesnt send it and just shows me the help info for adb. any suggestions why?
Thanks in advance
Click to expand...
Click to collapse
While in stock recovery and in the "apply update from adb" screen, type in the command window "adb devices". It should say:
<your device serial number> sideload
If it does not, check the drivers in device manager. You may need to manually install it. I had to on mine.
Cheers qbking77, worked a treat.
First time I pushed using adb & after following your tut life is good. Thanks again!
Ram1500 said:
for some reason its not working for me. im fully stock, no root, locked bootloader. my pc recognizes N7 adb host and goes into recovery, but when i write the command "adb sideload 03a4eaf95f73.signed-nakasi-JZO54K-from-JRO03D.03a4eaf9.zip" it doesnt send it and just shows me the help info for adb. any suggestions why?
Thanks in advance
Click to expand...
Click to collapse
You may be using an older version of adb that does not support the sideload command.
Jwoc12 said:
Same issue, when I "adb device" it will sometimes show as "device" and other times as something else (don't recall but not device). I can get into recover via "adb reboot recovery" and then into "update via adb" but when I "adb sideload.....(see above)" it just runs through the different commands as if "sideload" is not an option? Followed the video to a "T" and nothing.....thinking about rooting and doing it the old fashion way but this is the first android device I've had that I've not seen a reason to root right away...maybe should just wait for the OTA?
Click to expand...
Click to collapse
It should say 8sdgfs3JKSDBFkjk3 device or something like that. If it does not, you need to install the the correct driver.
My computer did not recognize my tablet at first. I went to this thread and installed PDAnet which installed the driver.
http://forum.xda-developers.com/showthread.php?t=1809195

[Q] Bootloader Troubles

Last night I was on my nexus before I would go to bed. I opened the franco kernel app and then noticed that r6 was available for download. I downloaded and flashed it and was about to go to sleep when I noticed the notification light that my phone was charging. I thought it was neat then tried to get some sleep, but my promised sleep did not come quick. After a good chunk of time had passed, I thought that my lack of sleep was caused by the green light that was barely noticable. I searched and searched in the app to try and find an option to disable the LED, but could not. I then decided that the best way to get rid of the light, would be to flash the older r5 kernel so I wouldn't have to see the light anymore. I hit flash and my phone rebooted and then brought me to the bootloader. I attempted to reboot but I could not. I've tried using adb and nexus root toolkit to get my device to work again, but they can't seem to find it without the correct drivers. I installed Motorola device manager, nothing. I tried to follow the instructions in the toolkit to get the correct drivers installed but I can't continue with the need to enable debugging, which I cannot do from being stuck at the bootloader.
Under bootloader logs, I have the following messages:
Invalid boot image size!
failed to validate boot image
Fastboot Reason: Fall-through from normal boot mode
Any help would be greatly appreciated.
USB debugging is an android setting. It can only be used when android is running. If you had USB debugging on, it would make absolutely no difference in recovery or bootloader so don't let that step stop you.
From the logs, it sounds like your kernel download is corrupt or didn't flash properly. I had a similar message when I flashed a partially downloaded recovery image today.
Just fastboot flash a complete boot image
I tried that last night by launching adb and doing 'adb devices' but my device is unrecognized and I am unsure of how to go about fixing that.
thecupman said:
I tried that last night by launching adb and doing 'adb devices' but my device is unrecognized and I am unsure of how to go about fixing that.
Click to expand...
Click to collapse
Tried what exactly? Adb and fastboot are two different things. Adb works in android or recovery only. Fastboot works in boot loader only. Boot to boot loader and do "fastboot devices"
Ah that was my mistake. But the fastboot devices command just returns a new line for a new command to be entered in
thecupman said:
Ah that was my mistake. But the fastboot devices command just returns a new line for a new command to be entered in
Click to expand...
Click to collapse
That probably means there is a blank line between them - showing that no device is found. Unlike Adb it just gives a blank line instead of "no devices".
Probably means a driver issue or cable issue. Try different USB ports / cables if you can. Check to see if there are any yellow triangles in device manager too.
I'm new to this phone so I don't know where the drivers are if you need them. If I ever find them, I'll port my nexus 5 Adb and fastboot thread over here. Unfortunately i use Linux at home so I don't really have a driver issue.
Oh, so if I were to use Linux I wouldn't have to deal with missing drivers? I'm assuming that's the issue since no matter which port I use, 'Connect USB Data Cable' doesn't change
thecupman said:
Oh, so if I were to use Linux I wouldn't have to deal with missing drivers? I'm assuming that's the issue since no matter which port I use, 'Connect USB Data Cable' doesn't change
Click to expand...
Click to collapse
I can't say for sure. In Linux you may need to add UDEV rules. I didn't though. My bootloader is just recognised.
Please do check your device manager though.
I'm sorry i can't help more right now. I'm going to bed.
Okay, thank you! I'll reply if I encounter any other errors!
The Google driver works for all Nexus devices (except the GNex): http://developer.android.com/sdk/win-usb.html

Solved: Can't pass fastboot commands to bootloader

Hi guys,
I've got a real head-scratcher over here. I followed every guide to a T, but I can't get my computer to detect my device in fastboot.
I installed the Xperia companion. I tried to manually install the Google USB drivers, and the sony OEM drivers. Still, no matter what, when I enter, what is supposedly fastboot, it never shows up. When the phone is on ADB devices shows it just fine. I am at a total loss!
To enter fastboot, I am shutting down the phone, pressing the volume up button, and plugging it in, then I get a black screen and a blue LED, which supposedly is correct? I've personally never seen anything like this before. Device manager does detect it as an unknown Android device, however, if I try to apply any drivers to it Windows simply informs me I already have the latest ones installed.
Thanks
SOLUTION: It was a driver issue after all. Windows 10 would not detect any drivers, nor let me install any drivers manually from files, however, it did let me select built-in drivers from my computer. YMMV, but If you are running into this issue try this:
1) Put your phone into bootloader mode.
2) Open device manager.
3) Right-click the device called "Android" with the yellow question mark, and select "update driver."
4) Click the "Browse my computer" option.
5) Click "Let me pick."
Note: There are several categories here, I suggest you try them all: portable devices, android devices, and in my case, Samsung devices. In one of the categories, you will find Google listed as a manufacturer.
6) In one of the categories, you will find Google listed as a manufacturer (in my case it was under the "Samsung Devices" category).
7) Select Google and then select the newest fastboot driver listed (in my case it was dated 2016), and install that driver.
8) Go back to PowerShell and run "fastboot devices." With a little luck, it will work!
Previous steps:
Edit: I had the thought of trying
Code:
adb reboot fastboot
and that got me into fastbootd, and then my PC detected it, however, the phone did not accept the unlock command.
Code:
FAILED (remote: 'Unable to open fastboot HAL')
fastboot: error: Command failed
I rebooted into the bootloader from here, got the same black screen, blue LED as above, and my phone is still not detected by fastboot.
Make sure you open cmd window in fastboot folder...i hope this is help
Sony fastboot mode is different I think. It was odd to me but doesn't show anything on screen when I went to fastboot to flash US firmware
mehdi_s82 said:
Sony fastboot mode is different I think. It was odd to me but doesn't show anything on screen when I went to fastboot to flash US firmware
Click to expand...
Click to collapse
I live in Boston and got the the XQ-AT51 (despite the fact that B&H was originally selling the 52... so in a few months I'm going to have to flip this phone ), do I have to reflash a stock firmware before I can unlock the bootloader? I do have it from XperiFirm.
Edit: This was dumb of me as you can't flash anything onto the phone unless the bootloader is already unlocked.
Edit: I don't want to double post, but I managed to solve the problem, and added the solution to the OP.
THANK YOU VERY MUCH FOR THIS GUIDE. I was struggling for hours on end with the "Unable to open fastboot HAL" error message, but followed the steps outlined in your guide a little differently than you, since I'm on windows 7. I believe that the root cause of my issue was that I actually used the down volume button instead of the volume up, believing that it was weird for the screen to show nothing except for the blue notification LED.
Here is what I did just in case for people who might encounter the same issue in the future. Be warned though that I'm not an english native so the options won't be accurately translated but I'll try to do my best nonetheless.
1) Put your phone into bootloader mode (volume UP + power button, not down.) Don't be afraid if nothing shows up, it's actually normal
2) Open device manager
3) Right-click the device called "Android" with the yellow question mark, and select "update driver."
4)ISelect "Look for drivers on my computer (manual install option)
5)Select "Choose from a list of drivers installed on this computer"
6)Scroll down through the manufacturers and such until you find "sony sa0200"
7)Install it
Normally everything should be working fine with fastboot. What a relief
I have a similar problem, but my device manager does not show any android device from the bootloader. I've tried multiple cables and everything works fine in adb mode.
EDIT: Nevermind. It ended up being multiple bad cables. They all worked in ADB/booted but not in Fastboot/bootloader. Tried one more it it worked completely
I have same issue with my Poco X3 Pro, the device working fine and is recognized as ADB composite when i'm under MIUI, but when i launch the device in fastboot mode, the ADB composite disappear and a generic "android" device appear and i'm not able to install any drivers, no qualcomm, no xiami, no generic google usb, nothing.
Following the tips above, nothing work. I'm under windows 7.
Any tips?
Thx everyone for pointing me to the right direction. Flashing latest twrp was the final step. Recovery is back to now .

Alcatel 1C suddenly says "can't load Android system"

I've ran into the following problem:
came home and try to open my phone, code doesn't work to unlock screen. Unless I'm going insane was sure the code was correct twice.
Restart phone, stuck on enjoy.now for a long time, goes to alcatel logo, then goes into an Android Recovery message saying "can't load Android system. Your data may be corrupt."
Then 2 options: try again or Factory data reset.
I've managed to find the following possible solution: https://glebovdev.medium.com/how-to-fix-cant-load-android-system-issue-8a5b0ead5a15
..but I can't even get to recovery screen with more than 2 options. It would be a huge pain if I have to factory reset.. should it be possible to get to recovery mode on my phone as well?
Is there any possible way to get the data off the phone (mainly Google Authenticator to which I'm not sure I have the codes anymore)?
Thanks
BrickAlcatel said:
I've ran into the following problem:
came home and try to open my phone, code doesn't work to unlock screen. Unless I'm going insane was sure the code was correct twice.
Restart phone, stuck on enjoy.now for a long time, goes to alcatel logo, then goes into an Android Recovery message saying "can't load Android system. Your data may be corrupt."
Then 2 options: try again or Factory data reset.
I've managed to find the following possible solution: https://glebovdev.medium.com/how-to-fix-cant-load-android-system-issue-8a5b0ead5a15
..but I can't even get to recovery screen with more than 2 options. It would be a huge pain if I have to factory reset.. should it be possible to get to recovery mode on my phone as well?
Is there any possible way to get the data off the phone (mainly Google Authenticator to which I'm not sure I have the codes anymore)?
Thanks
Click to expand...
Click to collapse
It could be that your device is trying to boot to the inactive slot, verify in fastboot mode which slot is marked as active and try to boot either in A and/or in B slot.
Idk if I'm doing something wrong but holding volume up or down as it restarts, the only boot screen I get is:
Android Recovery
TCL/5003d_EEEA/Curie
8.1.0/OPM2.171019.012/5003d_ALWE_EEA_V3
user/release-keys
(aforementioned error)
Try again
Factory data reset
fastboot mode should show other options right?
BrickAlcatel said:
Idk if I'm doing something wrong but holding volume up or down as it restarts, the only boot screen I get is:
Android Recovery
TCL/5003d_EEEA/Curie
8.1.0/OPM2.171019.012/5003d_ALWE_EEA_V3
user/release-keys
(aforementioned error)
Try again
Factory data reset
fastboot mode should show other options right?
Click to expand...
Click to collapse
Well, fastboot is to interact through fastboot commands and you can check from there the slot that is active with
Code:
fastboot getvar all
and you see something like slot_active xx
When I run adb devices in powershell it does not show any devices connected (although the device does show as connected in Windows device management).
In device management it does show as "MTP USB device".
Is this likely to be a driver issue?
BrickAlcatel said:
When I run adb devices in powershell it does not show any devices connected (although the device does show as connected in Windows device management).
In device management it does show as "MTP USB device".
Is this likely to be a driver issue?
Click to expand...
Click to collapse
Device has to be power on to respond to adb commands and from what you were telling your device is bricked..
It's technically powered on but yes still does nothing but bootloop and try again/factory reset screen. There's no possible other way to get to Android recovery mode when the volume down+power option doesn't seem to be working?
BrickAlcatel said:
It's technically powered on but yes still does nothing but bootloop and try again/factory reset screen. There's no possible other way to get to Android recovery mode when the volume down+power option doesn't seem to be working?
Click to expand...
Click to collapse
Device has to be strongly and consistently on so adb commands can work, they can't work while in bootloop so forget it this way.
What you can try is tipically pwr + vol. up and pwr + vol. dwn, one of them will take you to fastboot mode where you can give it a try to what I pointed out in previous outputs.
OK some progress.. apparently you have to let go of power button and volume up right as the alcatel logo appears, the timing seems to matter. I'm now able to see Android recovery with more options at least so will try from there.
Thanks again for taking time to reply.
I've tried
Code:
fastboot getvar all
this results in <waiting for any device>
adb devices still shows no list of devices even though in Device Manager it shows as "Fastboot gadget" under other devices
I've downloaded drivers from Alcatel website in case it's a driver issue but on the list of model numbers during setup mine (5003D_EEA according to recovery screen) doesn't show.
I do see a bunch of websites allegedly offering these specific drivers but assume it's risky to download from anywhere other than Alcatel official site.
BrickAlcatel said:
I've tried
Code:
fastboot getvar all
this results in <waiting for any device>
adb devices still shows no list of devices even though in Device Manager it shows as "Fastboot gadget" under other devices
I've downloaded drivers from Alcatel website in case it's a driver issue but on the list of model numbers during setup mine (5003D_EEA according to recovery screen) doesn't show.
I do see a bunch of websites allegedly offering these specific drivers but assume it's risky to download from anywhere other than Alcatel official site.
Click to expand...
Click to collapse
It seems to be a reliable site https://www.androidusbdrivers.com/alcatel-1-usb-drivers/ it offers the 4 different drivers needed covering all the modes that your device can enter to.
I would recommend mainly two things:
- Uninstall/remove firstly all the drivers that you don't use, it could be something for an old android/tablet that you don't use anymore.
- Don't swap the cable data from/for other device, any of them have its own type of connection, use the same proper cable data for only one device.
From there the typical first step in fastboot is just typing
Code:
fastboot devices
], if the message is "waiting for device" then it's not working.
hi im having the exact same problem, but cant get out of this. Could somebody maybe help me? How did you eventually fixed it? kindregards

Question [Resolved] No connection with pc in fastboot mode.

Hello all, I'm trying to install a new ROM but one of the first steps consists in getting access to adb and fastboot mode.
Unfortunately, I can easily access to adb mode, and adb commands respond well, but when I then go in fastbood mode 'adb reboot fastboot", My phone goes to fastboot with the icon on the screen, but won't answer to any fastboot commands.
I've tried to install adb drivers, uninstall/reinstall the drivers (but it's always the windows drivers that installs first). I even tried to install google usb drivers using SDK manager, but didn't succeed this step.
I've tried to change the usb cable, but with another one, it was worse: even the adb commands would not work. So I guess the one I'm using is ok.
I'd be very happy if someone could help me fixing this frustrating bug!
Model:M1903F11A
kernel:4.14.117-perf-g0f2347b
MIUI Global 12.0.6
Android version : 10 QKQ1.190825.002
Cyjam said:
.. new ROM but one of the first steps consists in getting access to adb and fastboot mode.
...
Click to expand...
Click to collapse
The first step is to unlock the bootloader.
Cyjam said:
... when I then go in fastbood mode 'adb reboot fastboot", My phone goes to fastboot with the icon on the screen, but won't answer to any fastboot commands.
....
Click to expand...
Click to collapse
For fastboot try:
adb devices
........... (here you must see a number)
adb reboot bootloader
fastboot devices
........... (here you must see that number again)
Hi, thanks for trying to help me:
you're right , first is the unlock, but it's done. it's even in "grey" on the screen and written: bootloader is already unlocked. I've tested my phone with "root checker" and test is ok.
you're right about the command, this is the one I've used to go to fastmode and actually this command works: as I said, when in adb mode, it's all good: my phone is connected to pc and accepts the adb commands. But once I switch to fastboot, this is when it's going wrong: my phone's not answering to any commands.
To be more precise: when prompting: adb devices: i get a number. When prompting, in fastbood mode, fastboot devices: i get nothing.
Alleluia!!
Finally found out how to fix it!
After going in fasboot mode with the command: adb reboot bootloader, i opened the windows device manager: There I found a android XXx interface, or something like this: anyway, something barely identified by windows. Right clik, update drivers, manually update, pointing to the folder I store the google usb drivers and : Bingo! It works like a treat.
I now can step further in the process... Hope I won't need to come back with another question in the next minutes!

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