MTK USB VCOM Fix - Miscellaneous Android Development

If you are trying to install VCOM drivers in your Windows 8.1 PC this guide is just for you!
This Driver doesnt get installed easily in Windows 8.1 .. Try the method given in
THIS LINK​
Browse to the blog's VCOM driver post to see more... :angel:
This thing really has helped many people with their issues with VCOM in Windows 8.1! Hope this helps you...
Try the method given in link .. To disable Signature Verification for drivers do this :
Press Win + C button to open the charms bar.
Click Change PC Settings
Click Recovery in left hand side
Below Advanced Startup click restart now.
The PC will now show a blue screen with some options. Click Troubleshoot.
Then Advanced Options.
Then Startup Settings.
Then click Restart.
Now PC will restart and now it will show some options.
Click 7 to disable Driver Signature Verification. And now PC will boot into Windows.
Share this if you find it helpful!

Related

[TUT] Instructions MTK6577 USB VCOM Driver Installation

Since here every day again and again problems with the USB VCOM driver installation for MTK6577 appear Phones, here is a short guide to the installation, and a final, successful test with SPFlashtool!
Installation of the USB VCOM driver:
[1] With USBDeview, clean up your PC from all possible old MTK VCOM entries, then reboot your PC.
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
[2] Smartphone is switched off, and still dont connect via USB to the PC.
[3] Open Device Manager and leave it open!
[4] Your switched off Smartphone with inserted rechargeable battery via USB connect now on the PC, you should now see a MT65xx preloader in the Device Manager.
(With some MTK6577 Smartphones should be installed without battery. Please before hand inform.)
[5] now launch the Installdriver.exe from the unzipped MT6577 USB VCOM drivers folder. Confirm the installation of unsigned drivers
[6] now! (W7 x 64 this confirmation comes later in the manual installation!) After the installation is complete, you have no entry in the Device Manager, it is correctly!
[7] PC reboot!
[8] Open Device Manager and open the switched-off Smartphone via USB to the PC release, now connect (same USB port!)
[9] Now a MediaTek PreLoader USB VCOM should appear for a brief moment in the Device Manager entry!
[10] At the moment the entry double click and click on "Update driver" under the tab "Driver".
[11] With the wizard in the unzipped MTK 6577 USB VCOM drivers navigate and select the folder for your operating system.
Required Downloads:
Download MT6577 USB VCOM Driver (W7/Vista/XP) -> http://www.mediafire.com/?cypm22rgs2k83ji
Download MT6577 USB VCOM Driver (W8) -> http://www.mediafire.com/?7yee2of64nhl947
Download USBDeview -> http://www.mediafire.com/?becpnj761zh5o2w
Download USBDeview x64 -> http://www.mediafire.com/?41i2k36yyi1fzhz
Click to expand...
Click to collapse
Reserved
kumar abhishek said:
Reserved
Click to expand...
Click to collapse
any way to instal and make it work on win 8 ??
shivinxtreme said:
any way to instal and make it work on win 8 ??
Click to expand...
Click to collapse
same here not working on win 8 x64 bit
mohsin2cool said:
same here not working on win 8 x64 bit
Click to expand...
Click to collapse
Can u explain the full problem?
Sent from my Micromax A75 using Tapatalk 2
After installing all drivers and connecting the phone to pc without battery, the device manager shows it as mt65xx preloader.. but in few seconds it goes off . It comes as an unknown device..
Sent from my Micromax A116 using xda premium
ME Test In Win 7 SP1 Not Work.
---------- Post added at 10:56 AM ---------- Previous post was at 10:10 AM ----------
Plz Help For Install Driver.
Not Fixed?
Why??????????????????????????????
AhrimanSefid said:
Not Fixed?
Why??????????????????????????????
Click to expand...
Click to collapse
@AhrimanSefid
Check this file and see images for install driver in W7. Remember, install this as administrator. Installation also depends on the version of w7, it is x32 or x64.
Install drivers - Win7.rar
shivinxtreme said:
After installing all drivers and connecting the phone to pc without battery, the device manager shows it as mt65xx preloader.. but in few seconds it goes off . It comes as an unknown device..
Sent from my Micromax A116 using xda premium
Click to expand...
Click to collapse
Don't worry about that "unknown device"
You can connect your phone and continue to Flash.
If driver is not there for your phone then SP Flash Tool will keep on searching for your phone.
If driver is installed then SP Flash Tool will continue and start Flashing your phone.
shivinxtreme said:
any way to instal and make it work on win 8 ??
Click to expand...
Click to collapse
hi,, did you guys get the drivers to work on win 8 ??
If yes, do let me know how you did it..
thanks
greg
Not working in windows 7.. Already tried this process several times..
Sent from my GT-I9300 using Tapatalk 2
tapan15in said:
Not working in windows 7.. Already tried this process several times..
Sent from my GT-I9300 using Tapatalk 2
Click to expand...
Click to collapse
Sometimes SP Flash tool is main culprit.
U need to use appropriate version
Sent from my C6502 using Tapatalk 2
help
kumar abhishek said:
Since here every day again and again problems with the USB VCOM driver installation for MTK6577 appear Phones, here is a short guide to the installation, and a final, successful test with SPFlashtool!
Installation of the USB VCOM driver:
[1] With USBDeview, clean up your PC from all possible old MTK VCOM entries, then reboot your PC.
[2] Smartphone is switched off, and still dont connect via USB to the PC.
[3] Open Device Manager and leave it open!
[4] Your switched off Smartphone with inserted rechargeable battery via USB connect now on the PC, you should now see a MT65xx preloader in the Device Manager.
(With some MTK6577 Smartphones should be installed without battery. Please before hand inform.)
[5] now launch the Installdriver.exe from the unzipped MT6577 USB VCOM drivers folder. Confirm the installation of unsigned drivers
[6] now! (W7 x 64 this confirmation comes later in the manual installation!) After the installation is complete, you have no entry in the Device Manager, it is correctly!
[7] PC reboot!
[8] Open Device Manager and open the switched-off Smartphone via USB to the PC release, now connect (same USB port!)
[9] Now a MediaTek PreLoader USB VCOM should appear for a brief moment in the Device Manager entry!
[10] At the moment the entry double click and click on "Update driver" under the tab "Driver".
[11] With the wizard in the unzipped MTK 6577 USB VCOM drivers navigate and select the folder for your operating system.
Click to expand...
Click to collapse
Nt working with even windows 7....
i tried it many times bt unsuccessful.. i followed all d steps bt unable to find where d problem is?
when i connected usb without battery , the drivers installed sucessfuly bt device manager hadnt displayed mtk drivers... after rebooting my pc and i connected phone to pc with usb.. and d next moment the message displayed is drivers are nt installed ... and i checked out device manager bt it showing only micromax a90s which is nt connected.. i mean nt working.... any solutions for this... i wanna use uah rom bt hate this all bull ****s... waiting for uah help.....
Worked on Windows 8... Please follow the correct procedure. Just i flashed TWRP and replaced CMW (for testing only) and work fine.
If needed, i can post again the full procedure to flash CMW / TWRP / LEWA recovery.
Thanks
apoorv.mehrotra said:
Worked on Windows 8... Please follow the correct procedure. Just i flashed TWRP and replaced CMW (for testing only) and work fine.
If needed, i can post again the full procedure to flash CMW / TWRP / LEWA recovery.
Thanks
Click to expand...
Click to collapse
Please do..:good:
StanleyD said:
Please do..:good:
Click to expand...
Click to collapse
Hello All,
I tried both on window 7 & 8; 64 bit and procedure as mentioned by the OP is perfect; however i am posting it again here
1) Download the flash tools from anywhere preferably most updated one: SP_Flash_Tool_v3.1224.01
2) Download the recovery which ever you like TWRP / CMW (I tried both of them now and they are working for me on MMX A110)
3) In your desktop / laptop please ensure you allow installation of unsigned drivers (youtube will help for this)
4) Download and install MTK6577 Drivers for your device (this will only work after you clear step 3)
5) If still not working, download USBDEVIEW (usb driver remover) and run it as "Administrator" uninstall all the USB drivers relevant to your device and repeat above steps
6) Now connect your phone, with portable media option selected in USB or the default mode. Let it install and finish
7) Once done switch-off your phone while it is connected through USB (Again this will install a driver which will look like MTK65xx something...
8) Remove the battery of phone let your PC install the driver again (battery not plugged in, only phone connected with USB). You will see for a shot time that charging icon will appear on phone and disappear; this will install something in the background again on your PC
10) To confirm this, put your battrey again back in your phone with USB (still) connected to PC
11) go to system manager of your PC and look for MTK 6577 something ... something... driver
12) Now disconnect your phone and switch it on
13) Start the flash tool
14) Select the recovery option only in tool (TWRP / CMW / LEWA Whichever you like)
15) Click download
16) Connect your phone (which i assume is switched on), once you connect switch it off (no need to remove battery or anything)
18) Look at the status bar of your flash tool (nothing to worry, no need to do anything)
19) RED Bar -> Yellow Bar -> Green Ring
20) Disconnect
21) Reboot in recovery (TWRP / CMW / LEWA) is flashed...
video tutorial
apoorv.mehrotra said:
Hello All,
I tried both on window 7 & 8; 64 bit and procedure as mentioned by the OP is perfect; however i am posting it again here
1) Download the flash tools from anywhere preferably most updated one: SP_Flash_Tool_v3.1224.01
2) Download the recovery which ever you like TWRP / CMW (I tried both of them now and they are working for me on MMX A110)
3) In your desktop / laptop please ensure you allow installation of unsigned drivers (youtube will help for this)
4) Download and install MTK6577 Drivers for your device (this will only work after you clear step 3)
5) If still not working, download USBDEVIEW (usb driver remover) and run it as "Administrator" uninstall all the USB drivers relevant to your device and repeat above steps
6) Now connect your phone, with portable media option selected in USB or the default mode. Let it install and finish
7) Once done switch-off your phone while it is connected through USB (Again this will install a driver which will look like MTK65xx something...
8) Remove the battery of phone let your PC install the driver again (battery not plugged in, only phone connected with USB). You will see for a shot time that charging icon will appear on phone and disappear; this will install something in the background again on your PC
10) To confirm this, put your battrey again back in your phone with USB (still) connected to PC
11) go to system manager of your PC and look for MTK 6577 something ... something... driver
12) Now disconnect your phone and switch it on
13) Start the flash tool
14) Select the recovery option only in tool (TWRP / CMW / LEWA Whichever you like)
15) Click download
16) Connect your phone (which i assume is switched on), once you connect switch it off (no need to remove battery or anything)
18) Look at the status bar of your flash tool (nothing to worry, no need to do anything)
19) RED Bar -> Yellow Bar -> Green Ring
20) Disconnect
21) Reboot in recovery (TWRP / CMW / LEWA) is flashed...
Click to expand...
Click to collapse
Plz can anyone post video tutorial of installing this rom do favour
I've followed ALL the instructions word for word now and still can't get it to install the MT6577 drivers correctly. I've tried the OP's method as well as apoorv.mehrotra's method. Have rebooted my PC now 28 times! Still can't get it to work. I have exactly the same problem as everyone else - the phone appears in device manager for 3 seconds then disconnects suddenly. Even the legacy installation method does not work. I've tried on a Windows 7 64-bit machine as well as a Windows XP 32-bit machine - exactly the same outcome each time.
Help!
It worked on my windows 8 x64. To install these drivers you need to bypass driver signature enforcement. Follow the instructions at http://www.craftedge.com/tutorials/driver_install_windows8/driver_install_win8.html

[GUIDE] Installing an unsigned driver in Windows 8 (x64)

Hello Guys,
I had a little trouble back there Installing the fastboot drivers with Windows 8 x64 system.
It looks like Windows 8 Only Installs the driver after verification on signature check.
I solved the problem after much reading... thought a guide would help others.
In case if you are facing the same problem, follow the steps below.
______________________________________________________________________________________
The steps to install a unsigned driver on windows 8 is as follows.
1. From windows 8 control panel choose General –> Under “Advanced Startup” –> Restart now.
Now the system will restart and might take some minutes to show up the boot menu. Wait for It patiently.
After some time you will be prompted with a menu with following options.
1. Continue
2. Troubleshoot
3. Turn off
Choose Troubleshoot
Then the following menu appears.
Refresh your PC
Reset your PC
Advanced Options
Choose Advanced Options
Then the following menu appears
System Restore
System Image Recovery
Automatic Repair
Command Prompt
Windows Startup settings
Choose Windows Startup Settings, then Click Restart.
Now the computer will restart and the boot menu appears.
Choose “Disable Driver signature Enforcement” from the menu.
Now windows will start and you can do the installation of the driver that is not signed.
thank you! used the guide for another driver but worked :good:
This guide needs update. It should be on the side bar click settings. Then at the bottom click pc settings. The option is not in control panel
Unsigned Driver Installation in Win8
Thank you buddy for the instruction, but before finding your post, I goolgled to fix this issue.
//meible.com/2013/10/disable-driver-signature-enforcement-in
Thank you, it's work perfectly
Thanks for guidance. I have also find very good tutorial alongwith images at:
makeuseof.com/tag/how-can-i-install-hardware-with-unsigned-drivers-in-windows-8/
Kindly, include the said link in your above post.
Regards,
OPEN MIND
dwarkesh2492 said:
Hello Guys,
I had a little trouble back there Installing the fastboot drivers with Windows 8 x64 system.
It looks like Windows 8 Only Installs the driver after verification on signature check.
I solved the problem after much reading... thought a guide would help others.
In case if you are facing the same problem, follow the steps below.
______________________________________________________________________________________
The steps to install a unsigned driver on windows 8 is as follows.
1. From windows 8 control panel choose General –> Under “Advanced Startup” –> Restart now.
Now the system will restart and might take some minutes to show up the boot menu. Wait for It patiently.
After some time you will be prompted with a menu with following options.
1. Continue
2. Troubleshoot
3. Turn off
Choose Troubleshoot
Then the following menu appears.
Refresh your PC
Reset your PC
Advanced Options
Choose Advanced Options
Then the following menu appears
System Restore
System Image Recovery
Automatic Repair
Command Prompt
Windows Startup settings
Choose Windows Startup Settings, then Click Restart.
Now the computer will restart and the boot menu appears.
Choose “Disable Driver signature Enforcement” from the menu.
Now windows will start and you can do the installation of the driver that is not signed.
Click to expand...
Click to collapse
Is this still valid in Windows 8.1?
After installation of the driver, will it stay installed?
Means: After reboot, will it still be useable or do I have to choose “Disable Driver signature Enforcement” again?

[Q] MT65xx - Windows 8

HI everyone.
anybody can help me that can windows 8.1 Enterprise Build 9431 supports MT65xx USB Drivers (MT65xx Android Driver)?
bahmandamia6982 said:
HI everyone.
anybody can help me that can windows 8.1 Enterprise Build 9431 supports MT65xx USB Drivers (MT65xx Android Driver)?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2180436
Found some working link tried this guide
http://androidurdu.net/download-mt65xx-android-drivers-windows-7-vista-xp-x86-x64-amd/
if it help tell me
Yes it does support Windows 8.1
I flashed some MT65xx devices using Windows 8.1 using SP Flash Tool
But in order to install the drivers you have to disable driver signature enforcement in Windows.
You can find numerous tutorials on the internet teaching you how to do that with pictures. Use Google
but here's an easy way :
1) Put your mouse on the upper right corner so the menu appears.
2) Choose Settings.
3) While holding the SHIFT button on your keyboard , use your mouse to choose Power then Restart.
4)Choose Troubleshoot --> Advanced Options --> Startup Settings --> Restart.
5) After your computer restarts and shows you a list of options press F7 on your keyboard.
6) Wait until it boots and then install MTK drivers you can do that by connecting the device then opening device manager and clicking right click update ..choose browse ..and browse to your MTK drivers directory then click next.
I don't think he was asking for the tutorials, but for the actual drivers!

[Guide] Win7/8 Usb Drivers Installation for Sp tool

Hi Guys,
I am writing this tutorial on how to install usb drivers for sp tools on pc for our Magnus device. I and my friends struggled a lot in installing these drivers so this is to help my other friends.
This will help even if you are not getting any popup or phone in device manager list.
Below are the steps, will also attach screen shots to make it easy.
1.Go to Control Panel and open Device Manager
2.Right click and select Add legacy hardware (also can be from from Action menu)
3.Add hardware wizard will be opened, click next
4.Select "Install hardware that I manually select from a list (Advanced)"
5.Click next and click Have Disk option
6.Click browse and find where your driver .inf file is (download from the link attached at end of post), then select it. (I selected usb2ser_Win764.inf, select usb2ser_Win7.inf if its 32-bit)
7.Click Open/Ok You will see drivers listed... Select your driver there and click next and finish installing. I have used Mediatek PreLoader USB VCOM Port.
8. Hit that thanks button on left
For Windows 8.
If you are getting error like: “The third party INF does not contain digital signature information”, you need to disable Driver signature enforcement in windows.
1. Open the Charms Bar, select “Settings” --> “Change PC Settings” --> select General
2. Scroll to the bottom of the General page and select “Restart Now” under “Advanced Start-Up”
3. Once the PC comes back up, select “Troubleshoot”
4. Select “Advanced Options”, select “Start-Up Settings” and select the Restart button
5. Press the F7 key (or the number 7 key) from your computer keyboard. This disables the Driver Signature Enforcement, which will allow you to install unsigned drivers.
After the PC reboots, install the drivers normally.
Will try
What about Window 8??
Sent from my Micromax A117 using xda app-developers app
Akashn said:
What about Window 8??
Sent from my Micromax A117 using xda app-developers app
Click to expand...
Click to collapse
It should be the same for windows 8 too. Choose 64 bit and 32 bit depending on your system and you are good to go
Akashn said:
What about Window 8??
Sent from my Micromax A117 using xda app-developers app
Click to expand...
Click to collapse
You might need to disable Driver Signature in windows 8, updated my post for the steps. :good:
This thread has been viewed 99+ times but not a single thanks yet
Is it not helpful or people does not know how to appreciate others.
Rht555 said:
This thread has been viewed 99+ times but not a single thanks yet
Is it not helpful or people does not know how to appreciate others.
Click to expand...
Click to collapse
Thanks man.
Thanks bro... It helped
:thumbup:
Sent from my Micromax A117 using xda app-developers app
PiyushGupta said:
Thanks bro... It helped
:thumbup:
Sent from my Micromax A117 using xda app-developers app
Click to expand...
Click to collapse
Great!! Have you used Thanks button
Rht555 said:
Great!! Have you used Thanks button
Click to expand...
Click to collapse
Yes bro.
It worked!
Don't have words to thank you, tried so many things but this one actually worked you made my day!
kr.abhinav said:
Don't have words to thank you, tried so many things but this one actually worked you made my day!
Click to expand...
Click to collapse
Thanks Bro...
Sent from my Micromax A117 using Tapatalk
For Windows 8.1
Rht555 said:
Hi Guys,
I am writing this tutorial on how to install usb drivers for sp tools on pc for our Magnus device. I and my friends struggled a lot in installing these drivers so this is to help my other friends.
This will help even if you are not getting any popup or phone in device manager list.
Below are the steps, will also attach screen shots to make it easy.
1.Go to Control Panel and open Device Manager
2.Right click and select Add legacy hardware (also can be from from Action menu)
3.Add hardware wizard will be opened, click next
4.Select "Install hardware that I manually select from a list (Advanced)"
5.Click next and click Have Disk option
6.Click browse and find where your driver .inf file is (download from the link attached at end of post), then select it. (I selected usb2ser_Win764.inf, select usb2ser_Win7.inf if its 32-bit)
7.Click Open/Ok You will see drivers listed... Select your driver there and click next and finish installing. I have used Mediatek PreLoader USB VCOM Port.
8. Hit that thanks button on left
For Windows 8.
If you are getting error like: “The third party INF does not contain digital signature information”, you need to disable Driver signature enforcement in windows.
1. Open the Charms Bar, select “Settings” --> “Change PC Settings” --> select General
2. Scroll to the bottom of the General page and select “Restart Now” under “Advanced Start-Up”
3. Once the PC comes back up, select “Troubleshoot”
4. Select “Advanced Options”, select “Start-Up Settings” and select the Restart button
5. Press the F7 key (or the number 7 key) from your computer keyboard. This disables the Driver Signature Enforcement, which will allow you to install unsigned drivers.
After the PC reboots, install the drivers normally.
Click to expand...
Click to collapse
Hi.. For Windows 8.1...I Installed using "installdrv.exe" It is saying USB driver installed.
Thats it...Do I need to do any thing else??? like windows7???
Thanks bro....
Need for windows 8.1
Rht555 said:
Hi Guys,
I am writing this tutorial on how to install usb drivers for sp tools on pc for our Magnus device. I and my friends struggled a lot in installing these drivers so this is to help my other friends.
This will help even if you are not getting any popup or phone in device manager list.
Below are the steps, will also attach screen shots to make it easy.
1.Go to Control Panel and open Device Manager
2.Right click and select Add legacy hardware (also can be from from Action menu)
3.Add hardware wizard will be opened, click next
4.Select "Install hardware that I manually select from a list (Advanced)"
5.Click next and click Have Disk option
6.Click browse and find where your driver .inf file is (download from the link attached at end of post), then select it. (I selected usb2ser_Win764.inf, select usb2ser_Win7.inf if its 32-bit)
7.Click Open/Ok You will see drivers listed... Select your driver there and click next and finish installing. I have used Mediatek PreLoader USB VCOM Port.
8. Hit that thanks button on left
For Windows 8.
If you are getting error like: “The third party INF does not contain digital signature information”, you need to disable Driver signature enforcement in windows.
1. Open the Charms Bar, select “Settings” --> “Change PC Settings” --> select General
2. Scroll to the bottom of the General page and select “Restart Now” under “Advanced Start-Up”
3. Once the PC comes back up, select “Troubleshoot”
4. Select “Advanced Options”, select “Start-Up Settings” and select the Restart button
5. Press the F7 key (or the number 7 key) from your computer keyboard. This disables the Driver Signature Enforcement, which will allow you to install unsigned drivers.
After the PC reboots, install the drivers normally.
Click to expand...
Click to collapse
Can you post for Windows 8.1...lot of changes happened in 8.1 compare 8 so....I am searching General in Change PC settings its not there...so stopped!!!
Thanks for the gr8 tutorial bro. Working perfectly :good:
I installed it in win 8.1, but it says that driver installed but cannot start. Help?
dude
code 10 error...plz help
Kotish saxena said:
code 10 error...plz help
Click to expand...
Click to collapse
It happens when you try without hitting that thanks button....
No, please use latest version of sp tool and upload screenshot of error.
done
problem solved ..
and thanks for reply rohit
Thank You!!
Wasted the entire morning trying to make SP Tools detect my phone..found your tutorial..and voila ! :laugh: :laugh: :good: :good:
Now it is working just the way it is supposed to

Soft bricked Panasonic P81

Hi Friends,
This is my first post at XDA.
I unfortunately bricked my Panasonic P81 after rooting it and adding XHalo app and the boot manager app from the Xposed Framework.
The situation is as follows-
I can get to the logo, it screams Panasonic and then doesnt boot. I dont have CWA installed and worse, my SD card which had my stock backup is also lost. This means I need a mechanism to stock recover and perhaps flash boot.img and recovery.img?
I am stuck at this point, not sure how to proceed. I can get to recovery, have cleaned cache, backed up user data ,done a factory reset. Even after factory reset it still cant boot.
Please help me with a step-by-step instruction to recover, this phone is dear to me. How do I flash?(boot.img or rom) I have downloaded Sagar Patel's (good bless him!) backup and the images, but need guidance on how to flash and recover.
Please help friends and apologies for any incovenience. I am still a newbie
Guys please help!!
Driver-USB-PC connection problem
kartik.krish said:
Guys please help!!
Click to expand...
Click to collapse
Hope drivers are installed properly in your pc.
If you are going to use sp flash tool, Make sure SP flash tool is set to auto-detect com port, not manual selection
If you find that it is driver problem, following may help you.
Please note that there is nothing that much hard in driver installation as it is just to connect your device with your pc but because many users still face problem of driver installation, you can try following tricks!!!
It is observed by me that driver installation and adb interface problem do not happen in windows XP as eventually and generally it is happened in windows 7 and later…so, you can simply try on windows xp if you are able to do so…(you can use dual operating system too!!! Or good relation with neighbor/friends/colleagues/someone/all can be beneficial here!!!)
Note that all tricks here are not necessary to work, but it may still work for you….
Take one by one step, if the first step does not work for you, only then try next step. This is not all steps to be taken at once type guide…This is simply Try and error type tutorial/tricks…
There are following problems I have come to know regarding to driver installation and conflicts:-
Device is charging through usb cable but there is no usb option displaying on either device or no driver installation box/message/pop up appears in pc….
Missing sound of that usb-pc connection
Sound of disconnection after couple of seconds of connection
Adb interface is missing
Ok, sometimes changing usb connection type for example, from mass storage or mtp to camera, ptp, usb tethering or something else can bring adb interface…..
Try with different USB Cable. You can use original nokia or samsung tiny cable instead of cable having long length. Sometimes, length matters!!!!
Try in different USB Port.
Sometimes, you have to disable signature verification in your pc for proper installation of driver.
Had you disabled your antivirus before downloading, installing and while running your tools/softwares? You may need to do so…
Have you installed the software (or say, all associated softwares/tools) in C-System drive?, if not, then you should first install required software/tools in system drive that is usually C drive in Microsoft-Windows OS…or try after installing them on desktop.
Keep all necessary files/tools (driver files, flash tools, rom etc…) on desktop.
Download proper driver According to your model/device, According to chipset inside, According to Official site of manufacturer, Official site of chipset, through PC Suite/flash program of your device…
If the problem still not solve, you should try all available driver packages of your device one by one whether from official site of chipset inside your device, or any forum, adb, pdanet+ or foxfi, universal driver, VCOM Port driver, drivers from hexamob through play store, and find all possible packages and see if someone make positive result after installation…
If the problem still not solve, you should install remaining update packages of your system (PC) including all primary, secondary, essential, Non-essential updates….whatever, just install them all….reboot your pc…and see if problem is solved….
If you can connect the device but somehow found that device driver still not installed properly, just go to device manager in your pc, click on portable device, right click on your device and apply “Update driver”. Click on “automatically search” when a window prompt ask you.
If the problem still persists then,
Just remove all the drivers using usbdeview (I have given link also to download usbdeview in earlier post)
https://drive.google.com/folderview?id=0B511A2txfpAPbmwtQXZqbnVlT1U&usp=sharing
Install usbdeview and remove all the drivers
You can also fix this by showing the nonpresent devices in devicemanagement (google for show nonpresent devices for explanation)
Go to com ports, and delete all mediatek drivers except preloader driver. Now start over. It can help if you choose the same usb port where you had success last time.
Use Usbdeview to uninstall all the drivers before connection, restart the pc, Extract and keep driver zip files and other useful files/tools on desktop…just start your tool… and try to perform your tasks like backup…or restoring the backup…without worrying about that sound of disconnection you may listened after couple of seconds of connection or don’t even worry if you are just missing that sound of usb-pc connection….just try on your tool…
If still problem of driver installation persists, then simply use usbdeview and uninstall all drivers, restart your pc and try following steps:-
There are various ways to install proper drivers at the time of connecting the device with pc depending upon how you connect it.
Follow the procedure both with and without battery
Simply plug in via USB Cable
Connect by holding volume down button
Connect by holding volume up button
Connect by holding Power button
Connect by holding power and volume down
Connect by holding power and volume up
Connect by holding both volume up and down button
Connect by holding thrice volume up, down and power button
Connect by holding power and home button
Connect by holding power and menu button
Remember which method works and which drivers are installed
in LAN-Devices you may have different android device
Select/set drivers by hand and use the mtk usb driver, now Flashtool finds the phone
Suppose holding volume down method without battery works for you then what next you have to do is as below:-
1.TAKE THE BATTERY ,SD ,SIM OUT OF THE PHONE
2.HOLDING VOLUME DOWN CONNECT IT TO PC VIA USB(ONCE YOU HEAR A SOUND FROM PC YOU CAN RELEASE VOLUME DOWN)
3.OPEN DEVICE MANAGER(ON COMPUTER SEARCH IT OR CONTROL PANEL)
4.WAIT FOR 2-3 MINUTES
5.YOU WILL HEAR A SOUND & OTHER DEVICE WILL BE DISPLAYED
6.IN OTHER DEVICES ->MT65XX PRE-LOADER
7.RIGHT CLICK MT65XX PRELOADER
8.UPDATE DRIVER
9.LOCATE THE DRIVERS PROVIDED ACCORDING TO YOUR OS(VISTA,WIN7,XP)
10.IT WILL DO ITS STUFF
Install Mediatek drivers, preloaders, VCOM port etc…
Manually Install MediaTek USB VCOM Drivers
Requirement:-
1. Download MediaTek USB VCOM Drivers
2. Download USBDeview
Here is the link from you can get it:-
https://drive.google.com/folderview?id=0B511A2txfpAPbmwtQXZqbnVlT1U&usp=sharing
Procedure
(* Note: You might need to disable drivers signature verification in Windows for this to work smoothly.
If you want to turn off device driver signing in Windows completely, do the following.
Windows 7:-
1. Hit the Win+R keys together to open the run dialog
2. Type gpedit.msc to open the local groups policy
editor
3. Expand ‘Administrative Templates’ (it’s under ‘User Configuration’)
4. Expand ‘System’. Click ‘driver Installation’
5. In the right panel, double click on ‘Code Signing for Device Drivers’
6. Choose ‘Enabled’ in the window that appears.
7. In the underlying options, choose ‘Ignore’
8. This disables drivers signing in Windows 7, and now you can install unsigned drivers in Windows 7.
9. Click Apply, OK. Restart your computer to install unsigned drivers
Windows 8
1. Hold down the Windows key on your keyboard and press the letter C to open the Charm menu, then click the gear icon (Settings)
2. Click More PC Settings
3. Click General
4. Under Advanced Startup, click Restart Now
Note: In Windows 8.1, the ‘Restart Now’ button has moved to ‘PC Setting -> Update & Recovery -> Recovery.’
5. After restarting, click Troubleshoot
6. Click advanced options
7. Click Windows Startup Settings
8. Click Restart
9. After restarting your computer a second time,
choose Disable driver signature enforcement
from the list by typing the number 7 on your Keyboard Your computer will restart automatically.
10. After restarting, you will be able to install
unsigned drivers normally; however, Windows
will display a warning message. When the
warning appears, click Install this driver
software anyway. )
1. Install USBDeview and use it to uninstall all Vcom, Mediatek and Preloader drivers
1b. Extract the contents of the Mediatek USB VCOM file
2. In Windows, go to Control Panel and open Device Manager
3. Click any of the device groups (any of the items on the list) you see there, and then from Action menu, select Add legacy hardware
4. Add hardware wizard will be opened, click next
5. Select Install the hardware that I manually select from a list (Advanced)
6. Click next two times and click Have Disk button
7. Click browse and find where your driver's .inf file is, then select it (the .inf you'll select is located in drivers > USB Vcom driver > your OS) . Ensure to select the 64 bit .inf if your PC is 64 bit
8. Click Open and OK. You will see the drivers listed.
9. Select your driver there (select Mediatek Preloader USB VCOM Port)
10. Click Next and finish installing
11. If SP flash tool or other software still dont detect your phone then also install Mediatek DA VCOM (consider installing more from the list of drivers one at a time if need be)
Try in different PC
Sometimes windows XP works when windows 7 fails!!!
Case:-
It did the same thing with my MT6577 (Wiko Cink PEAX), so I connected it with a battery and without holding VOL+. Then "MT65xx preloader" appeared in device manager then disappeared (once). It is normal that it disappears. When you start Flash_tool and when you click Download (or whatever you want to do) THEN you connect the phone (in off state), and the flash operation will succeed.
Guess what? Once my Panasonic P81 could install driver and got detected after approx. 5 hours of continuous connection with win 7 x64!!! Meanwhile, I tried first usbdeview and then manually installation of mediatek driver but manual installation had failed as my p81 was only charging when it was connected with pc….So, mediatek – windows 7 conflicts….but, when I tried tiny (very small) nokia usb cable, it works instantly…
If you ever meet problem when you connect your android with your pc via usb cable and find that your android is charging but could not recognize or there isn’t that options of “USB connection” then just disconnect your android, power off it, remove battery, connect it without battery with your pc through usb, let it have some time to recognize your android or hear that voice of “usb connection” you were just missing…after that, insert battery and switch on your android…you are done!!!
Sometimes removing both sim cards and battery and then re-inserting them after a couple of seconds also works.
Try with different USB Cable
Try in different USB Port
Try in different PC
Sometimes windows XP works when windows 7 fails!!!
Use usbdeview to remove all the usb devices and then add your device
Find proper driver of your device:-
https://drive.google.com/folderview?id=0B511A2txfpAPbmwtQXZqbnVlT1U&usp=sharing
panasonic p81 soft bricked
SP flash tool detected my P81 mobile
but i need rom ROM files to flash
please any one give me rom file to flash Panasonic P81 with SP flash tool
problem solved?
I also had similar problem & solved it. Tell me if the problem is no solved.
damn i don't know what the hell is going on inside my computer but i am not able to get those drivers or i don't know what's the problem. please help me where to get drivers for my panasonic p81 mobile. it is softbricked and i want to install stock rom and i have that cpb files but that ygdp tool isn't working i am in total chaos.
help me please
kartik.krish said:
Yo! I had bricked it too and that too by Xhalomulti window cuz app window is sh!t..... be cool .there is stock rom available at www.xdafirmware.com....google it....also You will recieve a .zip... extract to get .cpb file and use YGDP (assembly:: if ask for password at ygdp type 369)......tap config select cpb. Wait ...connect usb and click start........ok tutorial on Internet.... IMPORTANT THING:: YOU'LL NEED MTK VCOM DRIVER PR ELSE IT WON'T WORK.
Sent from my Panasonic P81 using XDA Labs
Click to expand...
Click to collapse
Thanks so much mate! I fixed with the help of friends at XDA. Which ROM performs best on P81 which runs L or M? I am still on stock and need to upgrade. Do you have suggestions?
kartik.krish said:
Thanks so much mate! I fixed with the help of friends at XDA. Which ROM performs best on P81 which runs L or M? I am still on stock and need to upgrade. Do you have suggestions?
Click to expand...
Click to collapse
Brother I am tired of finding any rom other than stock.on internet there is miui 6 but most people complained it damaged their devices....no cyanogen OS,Color os ,Aokp,Ressurection remix,paranoid nothing........ok i found a phone named Doogee Dagger DG550 having same spects but better ui than playmore and that recently got kitkat too. Im thinking of trying it..if it fails i've
Panasonic original (ok modded a bit) firmware i can flash from ygdp tool..... actually Panasonic P81 is nothing but clone of coolpad 7320 with cool show replaced by playmore and the gesture is new....same multiwindow and the music cafe is nothing but coolpad music renamed....literally im using 7320 rom with build. prop changed so on apps it shows im using p81........Ok if you find rom please post link..... Ps ive tried roms on www.needrom.com but is hopeless.
Sent from my Panasonic P81 using XDA Labs
---------- Post added at 04:39 AM ---------- Previous post was at 04:34 AM ----------
kartik.krish said:
Thanks so much mate! I fixed with the help of friends at XDA. Which ROM performs best on P81 which runs L or M? I am still on stock and need to upgrade. Do you have suggestions?
Click to expand...
Click to collapse
In my opinion MIUI is best because it has a self large community like xda and launch updates per month so many that you will fed up installing them.....if you download and install one update you will be amazed that it will say 3 more system updates pending......and if you complain a bug next month it got fixed.....only thing is to find one...
PS don't download the miui 6 for p81..complained by many p81 user that it hard bricked the device.
And that miui is not official i.e. some developer made his own one and DO not tested that it works or not......
Sent from my Panasonic P81 using XDA Labs
Sir,My Panasonic eluga s is soft bricked, Not starting by pressing any key..it only Starts when connected to PC or charging.. That too in Fastboot mode.. While installing stock ROM using YGDP tool,I am not able to get my mobile in download mode..pls guide..
my panasonic p81 is hard brick,it is not detecting in pc by vcom and other drivers even not booting or charging,please help me devs.
I am connecting my p81 with my sound system but now i cannot hear the voice over a call properly plzz help me out

Categories

Resources