[HowTo] A2109 Fastboot

[anika200]

This thread will drag out over 5 posts, sorry.

This post is for people how want to root or flash a rom onto your device and you need to be in fastboot.

This is how I got fastboot driver installed in Windows 7 Home Premium.
1) You must have adb installed and working. There are threads around that will get you going on that.
2) First you need LeTools as linked to Here. Install that file and make sure you know where it is.
3) Then you have to Power On you device and plug in your A2109 via usb to your pc.
4) Now from cmd prompt issue the command adb reboot bootloader this will put your device into fastboot mode and windows will not be able to find a driver for it.
5) Open Device Manager and follow the steps below.

Now follow the screen shots.

Here is the device listed in windows



Right Click on Fastboot and select Update Driver


Select the next dialogs as shown




Then this one and click next



Brings you to the Next Screen where you want to have "Select All Devices" and then next








Next post

 

[anika200]

Now click Have Disk




Click Browse



Find the files from LeTools you installed and Select LeDrivers and click Open



Windows should now have this next box filled in as below Click open



Windows brings you back to this window Click OK



Next post

 

[anika200]

We finally get to this window where we can select Lenovo Fastboot Device and click Next




You will get this error click Yes



Holy crap we are finally done 100 mouse clicks later





That is finally over and we can now access fastboot.

 

[Ravak]

Is there a Lenovo's fastboot for Linux? I can adb from Linux (generic adb from android development kit), but fastboot doesn't work at all

Tried Lenovo's fastboot for Windows (from the link provided) under wine but with no success.

 

[anika200]

Update:

gmarkall just pm me a good tip for linux he said.

I have got fastboot working from Linux - it doesn't show up in "fastboot devices" but if you run with a custom vendor id, e.g.:

fastboot -i 0x17ef boot boot.img

Yaaay!!!

Unfortunately I do not have a fastboot that works in linux (my preferred OS). I never thought of trying to use wine, currently when I need to I run fastboot I use windows running in VirtualBox.

 

[Ravak]

Unfortunately I do not have a fastboot that works in linux (my preferred OS). I never thought of trying to use wine, currently when I need to I run fastboot I use windows running in VirtualBox.

Cheers, will try VirtualBox then

Edit: Just saw gmarkall's post in another forum about adding vendor ID; tested flashing a new recovery and it works!

# ~/Downloads $ fastboot -i 0x17ef flash recovery A2109_CWMrecovery-6.0.1.9c.img sending 'recovery' (6340 KB)...
OKAY [  1.182s]
writing 'recovery'...
OKAY [  0.447s]
finished. total time: 1.629s

 

[vampirefo.]

Fastboot works just fine in Linux, probably better than windows version,Just use the fastboot binary that came with your adb binary must be root to use it.

 

[vampirefo.]

Nice guide, I will be sending windows users here to read it.

 

[fryd]

Cheers, will try VirtualBox then

Edit: Just saw gmarkall's post in another forum about adding vendor ID; tested flashing a new recovery and it works!

# ~/Downloads $ fastboot -i 0x17ef flash recovery A2109_CWMrecovery-6.0.1.9c.img sending 'recovery' (6340 KB)...
OKAY [  1.182s]
writing 'recovery'...
OKAY [  0.447s]
finished. total time: 1.629s

Do you know for fact that 17ef is the vendor code for the A2109a?
I've been looking everywhere!
It should be sticky'd cuz... damn long night! hehehehe

 

[Ravak]

Do you know for fact that 17ef is the vendor code for the A2109a?
I've been looking everywhere!
It should be sticky'd cuz... damn long night! hehehehe

Connect pad to Linux box, type "dmesg":

[260240.827616] usb 1-6.3: new high-speed USB device number 56 using ehci_hcd
[260240.931410] usb 1-6.3: New USB device found, idVendor=17ef, idProduct=74e6
[260240.931415] usb 1-6.3: New USB device strings: Mfr=2, Product=3, SerialNumber=4
[260240.931418] usb 1-6.3: Product: IdeaTabA2109A
[260240.931421] usb 1-6.3: Manufacturer: LENOVO
[260240.931423] usb 1-6.3: SerialNumber: (your serial number here)

or type "lsusb":

Bus 001 Device 056: ID 17ef:74e6 Lenovo

 

[colour97]

need help. does it mean unlock successfully? thank you.

 

[FloRider]

Yes, your bootloader is now unlocked .

 

[a2109a]

Do you know for fact that 17ef is the vendor code for the A2109a?
I've been looking everywhere!
It should be sticky'd cuz... damn long night! hehehehe

You can try "udevadm monitor --environment --udev" too, it says:

ID_BUS=usb
ID_MEDIA_PLAYER=1
ID_MODEL=IdeaTabA2109A
ID_MODEL_ENC=IdeaTabA2109A
ID_MODEL_ID=74e6
ID_MTP_DEVICE=1
ID_REVISION=0232
ID_SERIAL=LENOVO_IdeaTabA2109A_FD60******
ID_SERIAL_SHORT=FD60******
ID_USB_INTERFACES=:ffff00:ff4201:
ID_VENDOR=LENOVO
ID_VENDOR_ENC=LENOVO
ID_VENDOR_ID=17ef

 

[a2109a]

Fastboot works just fine in Linux, probably better than windows version,Just use the fastboot binary that came with your adb binary must be root to use it.

Where do I get the fastboot binary for Ubuntu 12.04?

Edit:

I found:
http://forum.xda-developers.com/showthread.php?t=537508
http://developer.android.com/sdk/installing/bundle.html
http://android-dls.com/wiki/index.php?title=Main_Page (I cannot find Lenovo)

 

[FloRider]

Where do I get the fastboot binary for Ubuntu 12.04?

Edit:

I found:
[HOW-TO]Set up Android SDK/ADB/Fastboot on Ubuntu Linux - xda-developers
Setting Up the ADT Bundle | Android Developers
Main Page - Android Wiki (I cannot find Lenovo)

Sorry, I can't answer that one. I use Windows for adb & fastboot. You might want to try the Lenovo forum.