[HowTo] A2109 Fastboot

[a2109a]

Yes you helped me a lot. While I found the problem with the broken (at least for my device) binary myself, you inspired me to try it again your way and then it worked with the other fastboot. Now I try to delete the most bloatware. Let's see if it works.

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[a2109a]

To confuse the whole thing. Since the display flickers a lot more with ICS than with JB, I tried on another machine, but with the same binaries and I am again at < waiting for device >

~$ /install/androidins/adt-bundle-linux-x86_64/sdk/platform-tools/adb devicesList of devices attached
FD60****** device


~$ /install/androidins/adt-bundle-linux-x86_64/sdk/platform-tools/adb reboot bootloader


~$ /install/androidins/adt-bundle-linux-x86_64/sdk/platform-tools/fastboot -i 0x17ef reboot
< waiting for device >

~# /install/androidins/adt-bundle-linux-x86_64/sdk/platform-tools/adb reboot bootloader

~# /install/androidins/adt-bundle-linux-x86_64/sdk/platform-tools/fastboot -i 0x17ef boot '/install/androidins/ideapad/lenovo_a2109a_downloads/cwm_for_4.1.1/a2109_cwmrecovery-6.0.1.9d.img'
downloading 'boot.img'...
OKAY [ 1.067s]
booting...
OKAY [ 0.249s]
finished. total time: 1.316s

So I think the problem is, that adb can be used as user, but fastboot has to be used as root. (at least with Xubuntu 12.04)

Therefore my way is to reboot into fastboot mode with adb and then execute the fastboot commands as root.

Important is to watch the tablet. It is not a good idea to connect it to the usb-cable and put it somewhere where you cannot monitor the display!

I have now a2109a_mcl0201.zip installed and see apps, which I treat as bloatware, eg skype. Did I install the wrong JB-image?

Hopefully I have not a fast battery drain again.

[vampirefo.]

I have already stated at least twice that root is required for fastboot, I am glad you now understand that.

I don't watch the screen no need to.

I have been using A2109A_MCL0201 all day without noticing a battery drain.

[a2109a]

There have been people, who explained that root is not necessary. Most times I used root, but I don't remember when I did and when not. At least it is strange for me that adb works as user and fastboot not. Sorry for ignoring your advice. With XP I always used root and couldn't get a result, but I am not familiar with XP.

I apologize again to ignore some of your postings. Mails arrived very late, so I didn't do, what you suggested.

[vampirefo.]

There have been people, who explained that root is not necessary. Most times I used root, but I don't remember when I did and when not. At least it is strange for me that adb works as user and fastboot not. Sorry for ignoring your advice. With XP I always used root and couldn't get a result, but I am not familiar with XP.

I apologize again to ignore some of your postings. Mails arrived very late, so I didn't do, what you suggested.

Not a problem, I don't give advice on windows anyway, I thought you were a Linux guy, My advice is only for Linux as I don't use windows, I will add you to ignore as well.

[anika200]

There have been people, who explained that root is not necessary. Most times I used root, but I don't remember when I did and when not. At least it is strange for me that adb works as user and fastboot not. Sorry for ignoring your advice. With XP I always used root and couldn't get a result, but I am not familiar with XP.

I apologize again to ignore some of your postings. Mails arrived very late, so I didn't do, what you suggested.

There is no need to be apologize for anything in here. You have found a way that works for you and that is what counts. On my system I have all my android and other personal binaries installed in my home folder /home/anika200/bin. This way I never have to switch to root for such things, saves me some key strokes.
You used the installer program I linked to in another post which for some reason puts root privileges on fastboot, l did not know about that. It could be changed of course but you seem to be doing fine with it now.

[a2109a]

I _am_ a Linux guy for a very long time, but there are things, which you cannot do with Linux, eg Harmony remote control. So I have an old xp pc for such things, but normally I do everything with Linux, which is possible. I am not happy if I have to connect the xp pc, but sometimes there is no other way.

[FloRider]

To confuse the whole thing. Since the display flickers a lot more with ICS than with JB, I tried on another machine, but with the same binaries and I am again at < waiting for device >


So I think the problem is, that adb can be used as user, but fastboot has to be used as root. (at least with Xubuntu 12.04)

Therefore my way is to reboot into fastboot mode with adb and then execute the fastboot commands as root.

Important is to watch the tablet. It is not a good idea to connect it to the usb-cable and put it somewhere where you cannot monitor the display!

I have now a2109a_mcl0201.zip installed and see apps, which I treat as bloatware, eg skype. Did I install the wrong JB-image?

Hopefully I have not a fast battery drain again.

Odd that you have bloatware with MCL0201. There is only one ROM image. Try removing Skype. If it uninstalls, then it came from somewhere other than the ROM...

[a2109a]

I do not see Skype under "setup/apps", where I usually deinstall it, but I see it in my apps-list (button right upper corner) and I see it with Titanium Backup.

[FloRider]

I do not see Skype under "setup/apps", where I usually deinstall it, but I see it in my apps-list (button right upper corner) and I see it with Titanium Backup.

There is one more thing to try. Go back to the app list, click on the pencil in the upper right, and enter edit mode. Apps you can remove have an 'x' on the upper right side.