My phone is stuck in bootloop. I factory resetted my phone, so usb debugging is now off so, when i connect it to pc and go to recovery it shows in device manager android phone>adb composite device but can't do anything. I also tried fastboot but device not found shows in command prompt. Device is rooted. Phone model is hitech amaze s3. Temporary custom recovery is working. Rom is not available anywhere. It's service centre is in far cities. Does anyone know the solution.
Hey guys
I just got my Z3 Dual today. I was trying to boot into flash mode and using flash tool but it didn't recognize the phone.
Now the phone isn't turning on and when I connect it to the PC, Windows just shows as a "Unknown USB Device (Device Descriptor Request Failed)".
I can't seem to make the phone respond in anyway. Flashtool doesn't list any connected devices.
Did I brick my phone?
bobpsyduck said:
Hey guys
I just got my Z3 Dual today. I was trying to boot into flash mode and using flash tool but it didn't recognize the phone.
Now the phone isn't turning on and when I connect it to the PC, Windows just shows as a "Unknown USB Device (Device Descriptor Request Failed)".
I can't seem to make the phone respond in anyway. Flashtool doesn't list any connected devices.
Did I brick my phone?
Click to expand...
Click to collapse
First thing i thought was, maybe battery is dead someone, but u must have checked that right? Anyways, If you did manage to brick ur phone, you should probably send it to Sony and claim warranty.
Hello everyone! I brought a Lenovo Vibe X3 (x3a40) 3 months ago. And I updated it to MM 6.0.1 and the bootloader was unlocked and the device was rooted. TWRP was also installed. So I installed this CyanogenMod 13 from HERE.
Then I missed some stock features and decided to revert back to stock MM. And I used QFIL to flash the official stock ROM. But it turned out that QFIL suddenly stopped working and my device got stuck in EDL mode. Once I turned it off completely to flash it again, the device wouldn't boot up. In my case the device should get into EDL when I connect the USB cable and immediately hold the power key for a second. But there is no response.
Usually while booting the device vibrates but now there is no vibration nor is there anything on the display. The screen keeps completely off and it wouldn't boot into any mode, like no download/no recovery/no EDL/no bootloop, just cold.
And when I connect it to the USB all I get is the "Device not recognized" error. In device manager I get this "Unknown USB device (Device Descriptor Request Failed)".
Please note that I've tried switching the USB cable and the port as well as on a different PC and also checked with the drivers. Still the same. If someone could help me, it would be a great help.... :crying:
Further info on the device is here!
I wanted to change my ROM from a xiaomi.eu ROM to Lineage OS 15.1 https://forum.xda-developers.com/mi-...-aqua-t3667638.
I had already rooted my phone and installed TWRP. I rebooted to TWRP and wiped cache, dalvik cache, data and system.
After that I installed the 8.5.1.0 firmware, that was done successfully. After that I tried to flash lineage-15.1-20180202-UNOFFICIAL-libra.zip in TWRP but I got an error message at an early stage. Eventually I switched off my phone through the menu of TWRP.
This was the last time I've seen my phone alive because no matter what I do, it doesn't respond at all.
I've tried to flash it through XiaoMiFlash, but my computer (nor my Macbook) doens't recognize my phone when I connect it through a USB cable
What to do guys?
Any possibilities that you've fully-drained your battery? Try to left your device charging on standard wall charger for at least 2 hours.
If it still bricked, you might wanna dissassemble the phone and disconnect the battery from the board and start flashing MiUi fastboot rom vie EDL mode.
kopter36 said:
Any possibilities that you've fully-drained your battery? Try to left your device charging on standard wall charger for at least 2 hours.
If it still bricked, you might wanna dissassemble the phone and disconnect the battery from the board and start flashing MiUi fastboot rom vie EDL mode.
Click to expand...
Click to collapse
I've never had any problems with the battery. And when I entered TWRP I saw the battery was 80%. But I'll try to charge my phone for at least 2 hours, just in case.
In order to perform flashing MIUI Fastboot via EDL mode, the computer should recognize the phone when it is connected through USB cable, right? If so, that's not the case with my phone. My computer is saying that an unknown device is connected to it. Do you think this will be different when I remove the battery?
MastaBlasta070 said:
My computer is saying that an unknown device is connected to it.
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Click to collapse
Perhaps the driver is missing? The next step will depend on the registered USB device ID, so please quote it. My Mi4C in emergency download mode displays the following:
Linux, command lsusb:
Code:
Bus 003 Device 003: ID 05c6:9008 Qualcomm, Inc. Gobi Wireless Modem (QDL mode)
or Windows, in Device Manager as Ports (COM & LPT) / Qualcomm HS-USB QDLoader 9008 (COM5):
Code:
USB\VID_05C6&PID_9008
You should see one of these: 9008, 9006, 0002, 0001 or similar.
MastaBlasta070 said:
I've never had any problems with the battery. And when I entered TWRP I saw the battery was 80%. But I'll try to charge my phone for at least 2 hours, just in case.
In order to perform flashing MIUI Fastboot via EDL mode, the computer should recognize the phone when it is connected through USB cable, right? If so, that's not the case with my phone. My computer is saying that an unknown device is connected to it. Do you think this will be different when I remove the battery?
Click to expand...
Click to collapse
Unknown device probably indicated missing driver for the QCom EDL mode as @k23m mentioned above. Try to install the driver first. If you are on Windows 8 and above, you might need to disable driver signature enforcement first.
If all going nicely, MiFlash should recognize your device based on COM port and not device id.
Hi everyone. I don't know what happened but when I tried to connect my S22 Ultra it won't show the File Folder. I checked the device manager on my laptop and it shows me this "Unknown USB Device (Device Descriptor Request Failed)". I tried to reinstall Samsung driver and rebooted my phone and laptop but still It wont let me connect to my phone, phone is charging though but not file transferring. Any idea?
iampatricktan said:
Hi everyone. I don't know what happened but when I tried to connect my S22 Ultra it won't show the File Folder. I checked the device manager on my laptop and it shows me this "Unknown USB Device (Device Descriptor Request Failed)". I tried to reinstall Samsung driver and rebooted my phone and laptop but still It wont let me connect to my phone, phone is charging though but not file transferring. Any idea?
Click to expand...
Click to collapse
Maybe worth looking into these possible solutions?
Fix Device Descriptor Request Failed (Unknown USB device)
In this guide, you will learn how to fix device descriptor request failed in Windows 10 using 7 different methods. Click here to get started.
softwarekeep.com
I tried everything already. I hard reset the phone via recovery mode as well no luck. So I can't flash it using Odin since it won't detect my phone. Very sad. Anyone has the same problem with mine? I'm gonna contact samsung about this and return it.