[HELP] MTK 6572 PreLoader USB VCOM, can't get DA USB VCOM - Android Q&A, Help & Troubleshooting

Hello
Some time ago I decided to flash recovery to my Kazam Trooper X5.5 (MTK 6572) with MTK Droid Tools.
Unfortunatelly, phone got bricked. I went through many threads (not only on XDA) and mostly to unbrick MTK device, PC has to recognize it as MediaTek DA USB VCOM Port. I can't force my PC/phone to connect device as DA USB VCOM and it connects always as MediaTek PreLoader USB VCOM. In some threads I've seen that holding volume up while connecting to PC will make device recognizable as DA USB VCOM. It's not working for me. Also I've seen many cable connection methods - with battery, without battery, plugging cable while holding vol up etc.
The only way I can make my PC recognize mtk device is to disconnect cable, pull off battery, connect cable and place battery back. Now PC recognizes my phone for 2 seconds and disconnects.
I tried to install drivers manually but even if MediaTek DA USB VCOM appears on the list, connected device is recognized as new and it installs PreLoader driver.
Is there any way to force it to connect as MediaTek DA USB VCOM?
Thanks in advance!

Related

Phone keeps getting reconnected via USB cable

Hello,
My phone is turned off and when I connect it with my laptop (same with my PC) it keeps getting disconnected and reconnected. My phone is ZTE Blade Q Maxi.
First, I thought that the problem was my USB cable or USB slot, but in the end, they're okay. The drivers I have installed on my laptop are following: Android ADB interface, DA USB VCOM Port, Gadget Serial (there's probably more, but they're seperated in categories). I noticed when I connect my phone, 1 driver appears - Preloader USB VCom port, about 2 seconds becauses instantly it gets disconnected.
Currently, my phone is bricked, but I've had this issue before.
Any help would be highly appreciated.
Thanks in advance!

Bricked my S550

Somehow I have managed to brick my new cubot S550.
I wanted to update the rom so I headed to needarom and downloaded the appropriate rom and followed the instructions but somewhere along the line by pressing the vol keys and the power key the screen has gone black. This was done before I used any flash tools or install any drivers.
when I did plug it into the computer it was initially being seen as an unknown device but now I managed to install some drivers and it shows up as mediatek DA USB VCOM (android) (COM 5) I can install other drivers such as mediatek PreLoader USB VCOM Port and MTK USB Port and they seem to install but only after I untick show compatible hardware. When that is ticked then only mediatek DA USB VCOM shows in the list so I assume the state it is in is mediatek DA USB VCOM (android) (COM 5).
Unfortunately when I follow the instructions on needarom it throws up the error message S_COM_PORT_OPEN Fail(1013) so the flash tool obviously cannot communicate with the phone. This is the same even if I install the drivers as mediatek PreLoader USB VCOM.
The instructions on needarom are sort of wrong anyway because it instructs you to remove the battery etc but it is not a phone that has a removable battery.
I have two main questions.
How can I update the rom or failing that how can I get it off this black screen? I have tried different version of pressing the power button and vol keys and nothing is working.

MediaTek preloader usb vcom port detection problem

Device- karbonn titanium octane plus, rebrands - nibiru mars one H1, walton primo v1
i will try to be as informative as possible.
I found my phone off in my pocket, tried to turn it on but freezes on boot/logo screen for some seconds and displays some random horizontal lines on over the logo screen like it crashed or something.
also charging logo screen(screen before the charging animation screen appears) shows some lines and reboots again to charging logo screen and do not shows charging animation.
i was using stock ROM , I thought i would flash stock ROM again using TWRP(installed earlier) but recovery is not opening.
So I tried connecting to my laptop.
In the past, I've used SP flash tool to flash recoveries, it worked fine.
drivers are fine.
now it rarely detects "MediaTek preloader usb vcom port" like it should be, but mostly it detects "MTK usb port" which is useless and don't works.
flashing works only when "MediaTek preloader usb vcom port" is detected and don't work when "MTK usb port".
when "MTK usb port" is detected, SP flash tool just detects, doesn't do anything and after some seconds shows error "S_DL_GET_DRAM_SETTING_FAIL" and solution "Please check your image to matches with your phone which is to be downloaded." please do not focus here as device should have detected as "MediaTek preloader usb vcom port".
when it rarely detects "MediaTek preloader usb vcom port", the flashing process starts but strucks in the middle and fails.
drivers installed in laptop are correct .
what should i do now ???
any other tools can i use ?

Problems using SP Flash Tool (Driver Related Problems - Please Help)

The thing is, I am having trouble flashing the Stock ROM to my Lenovo A1000G as it has been dead and it doesn't turn on anymore.
I have installed MTK / MediaTEK drivers (After reading multiple threads and guides over the internet) and I have installed these 3 specifically -
1) MediaTek DA USB VCOM Port
2) MediaTek PreLoader USB VCOM Port
3) MTK USB Port
But the thing is whenever I try to plugin the device to the Computer pressing the Vol (-) button - it shows up in the Ports section as MediaTek DA USB VCOM (Android). Now since it is appearing like that, I cannot flash or do anything in general. Because the device is getting detected by the PC but the one that shows up in the port is showing up as the wrong one. It should have showed up as MediaTek PreLoader USB VCOM Port but it isn't happening like that. I have tried so many variations to install drivers / uninstall it. It just doesn't work.
Can someone please help, since I don't have much knowledge. I do have the Stock ROM ready and the device is probably hard bricked, so can't install drivers using the Pdanet method. So what can I do?
No help? Please someone. Bump
__PUMA__ said:
The thing is, I am having trouble flashing the Stock ROM to my Lenovo A1000G as it has been dead and it doesn't turn on anymore.
I have installed MTK / MediaTEK drivers (After reading multiple threads and guides over the internet) and I have installed these 3 specifically -
1) MediaTek DA USB VCOM Port
2) MediaTek PreLoader USB VCOM Port
3) MTK USB Port
But the thing is whenever I try to plugin the device to the Computer pressing the Vol (-) button - it shows up in the Ports section as MediaTek DA USB VCOM (Android). Now since it is appearing like that, I cannot flash or do anything in general. Because the device is getting detected by the PC but the one that shows up in the port is showing up as the wrong one. It should have showed up as MediaTek PreLoader USB VCOM Port but it isn't happening like that. I have tried so many variations to install drivers / uninstall it. It just doesn't work.
Can someone please help, since I don't have much knowledge. I do have the Stock ROM ready and the device is probably hard bricked, so can't install drivers using the Pdanet method. So what can I do?
Click to expand...
Click to collapse
I understand you are worried but please don't create duplicate threads and only bump once every 24 hours
Regards
Sawdoctor

Why is Maui META not detecting my android phone? Help.

I want to flash imei number on my android phone. But mauimeta is not detecting my phone. I'm using Maui META ver 9.1724.25.00 and I have Micromax C1. I turn off my phone, press reconnect button then connect it to my pc then my phone shows battery sign then I turn on my phone and wait but nothing happens, it never connects..... My phone was detectable in sp flash tools but God knows why is it not detecting in Maui META. I tried SN WRITER but it too didn't work. I have all the drivers installed or maybe I am missing one....... I don't know. I'm using windows 10. These are the drivers I'm using right now-
Android Gadget VCOM Driver (COM17)
Gadget Serial (COM18)
MediaTek DA usb VCOM Port (COM12)
MediaTek Preloader usb VCOM (Android) (COM19)
MediaTek Preloader usb VCOM Port (COM13)
MediaTek usb Port (COM20)
MTK usb Debug Port (COM14)
MTK usb Modem Port (COM15)
MTK usb Port (COM16)
Please help.
how did you resolve this?

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