Failed to Install Virtualbox Extension Pack

Question

I have a low end device i.e Micromax a27 which I m trying to restore after I had rooted it and tried to free up some space by removing the apps which broke the phone's OS.

Mistakenly I also executed a command in fastboot mode that flashed the system with a recovery.img(fastboot flash system recovery.img) after which the phone keeps on buzzing infinitely and nothing shows up on the screen.

I then tried to follow this method http://androidxda.com/flash-pac-stock-rom-android-smartphone but the phone starts buzzing endlessly when plugged in with a USB cable and nothing is shown in the status panel of tool mentioned in it (UpgradeDownload.exe)

This tool seems to extract the .img files from the .pac package(present under the firmware folder of the downloaded stock ROM) and place it in the phone,Can I somehow extract them from .pac and place them manually in the phone via fastboot?

Please suggest.

Thanks.

Solution 1

Make sure that you have the correct extensions installed, since they're not automatically upgraded with VirtualBox. You can check in VBox from the menu... File > Preferences > Extensions.

Here are the latest downloads... http://www.virtualbox.org/wiki/Downloads

Solution 2

You are probably trying to install the extension of a newer VBox (I did the same :P). You have 2 options:

1 - download the right version in this link http://download.virtualbox.org/virtualbox/4.0.12/Oracle_VM_VirtualBox_Extension_Pack-4.0.12-72916.vbox-extpack;

2 - download a newer version of VirtualBox (v4.1.2 at the moment - http://www.virtualbox.org/wiki/Downloads) and try to install the same extension you are getting this error.

I did the second option and it's working fine now ;-)

Comments

[techie_28]

thanks but I had tried most of these things here and I am unable to run the ADB as phone just doesnt starts but buzzes endlessly when Powered On and I do not know why :D :D Only option which seems to be working is the Fastboot and I am trying to use it

[S0AndS0]

If you can get into fastboot and have an external SD card try re-downloading the files to the SD card with another device; PC with adapter or another Android. Then place the SD card back in and try flashing with fastboot. The fact that it still gets into fastboot means that it's not perma bricked :-) and you can recover. Oh just be sure to pop the battery before pulling the SD card as well as properly un-mounting it from the secondery device that was used to re download the files. And by fastboot you meen that your able to select things to flash? If you see a triangle that's download mode.

[techie_28]

why to use a SD card for files when I can directly transfer them from my laptop?I tried sending system.img and recovery.img to the respected partitions and every time they succeeded but when I turn on the phone again it starts buzzing endlessly(funny) :D

[S0AndS0]

Ah in that case it is the USB port, charging port, and/or cable that you are using. Other options is the flashing software or drivers or another task trying to also assosiate with the device when plugged in. I would first try another cable in a different port, then if that doesn't work try re-installing drivers and flashing software. Also try closing any other task that maybe operating when flashing that is not required; web browser included. Flashing from SD card kinda cuts a lot of veriables out of the equasion so that is why I suggest it as the better cource of action.