General :: Boot Into Fastboot Mode In Lenovo A2109 Without Using PC

Jan 8, 2013

I have the Lenovo IdeaTab A2109 tablet,

The tablet is rooted and with custom rom and custom recovery.

I just want to updating from MCL203 to MCL201.

I dont want to use PC to flash the updated rom&recovery ... so i wanted to know:

As i need to boot into fastboot mode (after rom installation has finished) - how do i get to fastboot mode without using ADB?

P.S: the first custom rom installation made by a friend...i just want to know doing it by my self.

General :: boot into fastboot mode in Lenovo A2109 without using PC


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General :: Possible To Get APX / NVFlash Working On Lenovo IdeaTab A2109?

Nov 4, 2013

I've recently purchased a Lenovo IdeaTab A2109 Tegra 3 running 4.1.1 (build A2109_A411_03_13_121126_UK) running stock but with the bootloader unlocked via fastboot.

Last weekend I read about APX/NVFlash which (subject to the backup) gives my device a true bootrom recovery to allow me to restore my device in the case of a brick (handy for if I mess around with custom roms).

So far I've tried using both Windows 8 (with Nvidia generic drivers) and Linux Mint 15 (in a VM) but both have ended in failure producing the following errors:

Windows 8) "Unknown Device Found"
Linux) "Nvflash v1.5.66719 started
rcm version 0X4
Command send failed (usb write failed)"

Two theories I have right now are 1) I'm missing something e.g. firmware.bin, key, etc. or 2) NVFlash is incompatible with my tablet but the problem is I can only find information/specific software for other tablets e.g. Asus TF.

What I can try to get this working? I am able to get temporary root access via CWM and ADB if I need to get anything off the device.

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I have tried holding down the volume buttons and power button several times the past three days and nothing. The device vibrates and nothing happens. If I continue to hold the buttons then it vibrates every 6-7 seconds. I also tried to get into fastboot using a toolkit in our development section with no luck. The toolkit says I'm in fastboot when connected, but nothing is on my screen.

At this point I am at a complete loss. If I can't get it to work is that a valid reason for replacement by Google?

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Jan 1, 2014

I have a Lenovo P780 (chinese base rom) 4gb version. Rooted it and installed with CWM recovery for P780. Installed Muse UI 3.0 custom rom from custom recovery via sd card. Swapped the internal SD with External SD card by editing the vold.fstab and vold.fstab.nand also.

However, I realised that there are a lot of bloatwares that took up the RAM and started uninstalling chinese apps that seems to come with the custom rom from system. However, when I restarted the phone, its now unable to boot beyond the 1st boot screen. (Boot loop)

Current state of the phone now:

1. Able to enter custom recovery mode, but menu is blank except for the navigation commands. (return, up, down, confirm)
2. Able to enter adb only when the phone is in custom recovery mode.
3. Able to connect to PC (Windows 7 64bit). Mediatek MT6589 usb drivers installed. Many versions of sp flash tools installed and tried.
4. Can't seem to enter fastboot for this phone. (Tried many key combinations. Only Meta mode, recovery mode and factory mode are found)

Things I had tried:

1. Flashing stock rom.
I had downloaded the stock roms and tried flashing with sp flash tools, but I always encounter the following errors. Had also tried switching to another windows XP based pc and still encounter these errors.
(a) Firmware -> upgrade. Tried Auto Format Flash also and it returns with the same errors.
- BROM ERROR: S_FT_FORMAT_FAILED (4010)
Format flash error. Possibly given wrong format range. Please check your format settings.

(b) Download (all img boxes checked)
- BROM ERROR: S_FT_DOWNLOAD_FAIL (4008)
Download to flash fail!

(c) Download (only one img checkbox ticked, tried system.img and recovery.img)
- - BROM ERROR: S_FT_DOWNLOAD_FAIL (4008)
Download to flash fail!

2. Flashing recovery from adb terminal via windows and usb connection
When I put the phone to the custom recovery (with missing menu options), the adb terminal is able to recognise the phone and returns the following after the command 'adb devices': 0123456789ABCDEF recovery

Upon entering the shell via 'adb shell', I am given the # sign. (already in SU mode?)Tried to flash a recovery image from this mode via terminal command flash_image, but encounters the following problems:

(a) unable to mount/remount
- mount -o remount rw /system
mount: mounting rw on /system failed: Invalid argument

chmod 777 /system/flash_image
# flash_image recovery /sdcard/recovery.img

no response from the terminal after this command.

I had tried and tried these for more than a week after work, but had not been successful in reviving this phone.

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Aug 18, 2013

Lenovo A830 phones.

I bought it from Etotalk, so it came rooted, and with their custom version of the Lenovo Stock ROM and their custom version of CWM 5.5 installed.I tried formatting my SD card and then doing a factory data reset from within the operating system. (I was intending to install MIUI V5 after rebooting into recovery).

However, on rebooting, the device is now caught in an infinite boot loop, and I am not able to boot into recovery mode (by holding down power and both volume keys). It loads the initial splash screen, then shows a few seconds of the Android character and some whirring cogs before rebooting.

I am able to boot into Factory mode (power and volume up) or Meta mode (power and volume down). Factory mode has a number of options, but they are all in Chinese characters, which I am unfortunately not able to read.

I did notice that my SD card seemed to be write protected when I tried to format it in my computer and to copy on the new ROM - I solved this by putting it in a different phone and reformatting it. I wonder whether the factory reset process has write protected something it shouldn't have?

I've got the latest Android SDK Tools, MTK Droid Tools 2.4.8, SP Flash Tool 3.1312, some additional ADB drivers (120827 v3.7) that I'm not sure how to install, the latest MIUI V5 ROM (3.8.16), and the latest stock Lenovo ROM (S118 from Need A ROM, just in case I need it).

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Apr 22, 2012

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idk if this is any use but it says

***RELOCKED***
***Security Warning***
HOLIDAY PVT SHIP S-ON RL
HBOOT-1.85.0025
MI CROP-0360
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I have a motorola motostart (xt390) and wish to unlock bootloader, root, etc. Nevertless, I just can't get into fastboot mode. Powering up with VOL Down it access the recovery mode. The same for VOL UP+DOWN. When i try powering up with VOL UP pressed the device simply don't power up.

Is it a malfunctioning device or some roms for this hardware simply have mysteriuos ways to enter fastboot?

The ROM is a brazilian retail, Gingerbread (2.3.6) version MAUI.11AMD.W11.37.SP.V9.F4.P1, build: ARGONM_W_07.15.04R_D.

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Dec 2, 2012

HTC ONE X

my one x is stuck in the boot logo " htc quietly brilliant" screen and not responding to go to the OS 4.0.4

when i connect it i hear the sound of the usb connect but cant see it on "my computer"

i tryed to do fastboot but fail*

i tryed to do recovery reset mode and and it transfer me to the clockworkMod Recovery but in the "install zip from sdcard" there is no files it

looks like the phone as been format and there is nothing on him

how can i install a new OS on my phone again ?

p.s - when the phone is connected to the reset mode its say "fail to open usb master mode"

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Sep 28, 2013

I had to install a new firmware for my Lenovo A830, and I did a factory reset. However, it caused my device to reboot all the time - I can't even access the recovery mode. Here's the boot logo of the recovery after which the phone reboots. Here's the image: [URL] .......

It appears for 2-3 seconds, and the device reboots again. Also, it doesn't matter whether I press the combination of keys for the recovery mode or pressing the power button - I always get this boot logo.The only way to shutdown the phone is to remove the battery.

Maybe to reinstall the recovery mode somehow? Or to clean up the whole internal memory from PC? The only thing is that because of the constant reboots I can't access USB (just for the 2-3 seconds until the next reboot).

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Additional Info

Phone is Rooted
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Mar 1, 2013

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My CID is VODAP102 and my Version is 3.14.161.27 so i downloaded the rom and tried "fastboot flash boot boot.img" the result is:
sending 'boot' <8192 KB>...
FAILED <data transfer failure <Unknown error>>
finished. total time: 0.158s

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Or perhaps, if i just be able to put back the /system folder to its place again, it would be more easy to recover it... But how access the root when phone is like that?

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I researched all day yesterday perusing forum after forum but almost every single solution requires booting into recovery.

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I installed ClockworkMod 5.0.2.0 using ROM Manager and since then I haven't been able to boot into recovery mode. I can get into bootloader but not recovery. I've tried powering it on with the volume button down, using the recovery reboot option, and tried using "Reboot into Recovery" in ROM Manager, but I keep seeing the same thing. It boots with the HTC logo then goes black then at this point i believe I should be seeing recovery mode but instead I see the HTC logo again and then it just boots like normal. Is there something I did wrong and is there a way to get recovery to work again?

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