Hello. I bought this tablet and I`m trying to root it. My problem is that in fast boot after entering an adb command I get "error: device '(null)' not found". After a tablet reboot adb reboot bootloader goes into bootloader but again I got same error, tried adb devices (blank return), adb reboot (null error). USB debugging and OEM Unlock are enabled, I have tried lenovo usb drivers, google usb drivers but I`m getting same errors in fastboot. In windows 10 device manager device is recognised.
And a question about rooting, should I try Dashi or Genius Root ? My last android device was a HTC Desire S many many years ago and went with apple devices after. I`m a little rust with new android root methods.
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Hi guys,
I'm having problems unlocking bootloader.
The phone enter into fastboot mode but when I type "fastboot oem unlock-go" in the cmd of windows it doesn't recognize my device.
I have installed Minimal ADB and Fastboot and I have installed ADB Driver installer too but it doesn't recognize the device.
Can anybody help me with this please?
I need to unlock it because I want to root it.
Thanks
Have you tried unplugging and replugging when the phone goes into fastboot mode?
I just got my pro 3, did the OTA to the .19 software and unlocked and rooted just today and my girlfriend's very very fresh windows 10 install.
If that doesn't work just delete the adb driver, replug the device and windows should install the same drivers I used.
Hi I am Rupesh from India and I have lenovo a3000H and I am using it from past three years and I am bored with it and so I have downloaded cm 5.1.1 from your site.
I have tried a lot to root the device at first I have installed framaroot and after that I have installed superuser app which gave error as their is no su binary installed.
In order to unlock the bootloader I have installed android studio and USB drivers provided by the device vendor. When I connect the tab to Windows 8.1 system I am able to see an entry named lenovo a3000 under portable devices in device manager.
When I issue the command adb devices on command prompt of my pc I am able to see a serial number followed by the word device. When I issue the command adb reboot bootloader instead of entering into fastboot mode my tab is restarting itself after that when I issue the command fastboot devices I am unable to see no output.
Previously I have tried to backup my tab storage from PC using adb and my tab asked for confirmation but no backup was performed.
I think that fastboot is unable to detect the device.
I am unable to root my tab with using PC or without using PC.
Please suggest how to root my tab properly.
Regards,
Rupesh.
Before performing the above I have enabled USB debugging and became developer by tapping 7 times build number in about phone.
Excuse me for my bad English. I am new on this Forum. Please help me, I have a big problem!
I can’t use Fastboot command, because ewery time I got the „Waiting for devices” error message
1) I have a Motorola Moto G4 phone (XT 1622, athene)
2) This mobile are not rooted.
3) I want to unlock my bootloader, after this I want to install TWRP, and after this I van root my mobile, for install the custom Lineage OS.
4) On my phone I activated at the Developper Otions the USB debugging, and OEM Unlocking.
5) I connected my phone to my PC, I used first time Windows 10. On this system my Moto G4 are identified: Motorola ADB interface. No problem with identification, no any yelow exclamation matrk, no unidentified device!
6) I have installed the correct ADB and Fastboot driver v.1.4.3 (link is made from this site)
7) I have installed the Motorola driver from the official Motorola site.
8) All ADB command work fine, for example adb devices, adb reboot bootloader, etc.
9) But no fastboot command work, when I tested the fastboot devices, I got the „Waiting for devices”. Of corse befor this, I rebooted my phone in fastboot mode! If I use any fastboot command, I got this error message.
10) I try to use the excellent tools (thank you for this): Universal Fastboot & ADB tool, latest version, but the situation in this case is the same, „Waiting for devices”.
11) Of corse I rebooted the PC after instalation of the drivers, the fastboot.exe is in the right paths, etc.
12) I have installed the Universal USB Driver with the Universal Fastboot & ADB tool, Install drivers button, PC rebooted after this.
13) I used Windows 10, Windows XP, and Ubuntu, and in all cases I got the „Waiting for devices”
14) Under Ubuntu I got this message, despite that on Ubuntu the ADB and Fastboot driver installations are cleare.
15) I tested all on many other PC.
16) Every time I connected my phone to the PC only on USB 2.0 port, I changed the USB port, and I changed the USB cable too.
17) I read hundred ot tutorilas on youtube, on differant Forums, but none of them helped.
18) I uninstalled or reinstalled a many timet he ADB and fastboot drivers (I tested a lot of drives from the net), and I installet a many times the official Motorola driver, and the Google universal USB driver, but nothing
Please tell me what can I do for solve this devil situation, Please help me! Thank you again!
Today i tried to install a custom ROM update which caused a softbrick and now my device is stuck at the logo. I naturally decided to flash a stock rom in order to solve this. I went ahead and downloaded a MIUI 11 global stable one, next was rebooting into fastboot and connect it to my PC...
...When i rebooted my phone into fastboot, my PC didn't recognize the device at all. Device Manager says "USB Unknown Device (Device Descriptor Request Failed)". I verified the USB port and cable works properly with another phone, i installed USB drivers and ADB/fastboot ones, still nothing.
Is there anything I'm missing? I'm not very adept at these topics, I previously flashed mine into a PE custom ROM purely by following tutorials mindlessly.
Try the app "Xiaomi ADB/Fastboot Tools", this has the option to flash stock ROMs. The USB drivers that I have installed on my computer are "minimal ADB Fastboot 1.4.3".
You could also solve the problem with the tool "MiFlash Pro".
I'm dumbfounded. I have unlocked bootloaders and rooted for years. Just got my OP8P.
I also have a new Microsoft Surface Pro with Windows 10.
I installed ADB, installed Fastboot.
Unlocked developer options and turned on USB Debugging and Developer Unlock.
Windows device manager shows ADB INTERFACE for the my device in device manager.
I can open can open Power Shell and/or the CMD prompt. I've done both.
I can type adb devices in the command prompt and I CAN see my device.
I can reboot it fastboot from the CMD prompt so I KNOW Wndows sees my phone.
BUT ONCE I'M IN FASTBOOT, the problem starts.
Fastboot does NOT see my device. Commands return the words "Waiting for Device..."
I BELIEVE the issue is with the drivers. When I boot into Fastboot, my device location changes in Device Manager from USB>ADB Interface to Portable Devices>Android.
The Android Device icon has a yellow triangle with an exclamation mark. It's says the driver for this device is not installed. But everything was working fine and the drivers were fine while the device was powered up normally.
If I try to manually install the driver it fails and says "cannot update drivers for your Android".
What heck is going on? What did I do wrong?
I've uninstall and reinstalled the drivers direct from Oneplus. I've uninstall and reinstalled the drivers direct from Google. 'I ve uninstall and reinstalled the drivers direct from Windows.
Why can't device and drivers be recognized in Fastboot. And why can't I update the drivers for the "Android" device?