wm 8880 unable to flash firmware . stuck in : WM Android 4.2 is upgrading

[ferva...@gmail.com]

Hello, mi tablet is refused to install any firmware, is stuck on WMT Android 4.2 is ugrading ,nothing happens. anyonne had this problem? i think i fuck up the bootloader or whatever its call
My mistake was flash a root exploit made for 8550 based tablet(yes, i now.. i'm stupid) RootBurner_v0.1_MaPan
http://www.xup.in/dl,18695027/RootBurner_v0.1_MaPan.zip/

Tablet model :GT7301_HD_ZET6231_7ATC7055

original Firmware: http://www.genesistab.com/drive/SK-Mtek.GT-7301.zip

fwc file : https://mega.co.nz/#!gcoxmCJA!26vA3KWms9vrpGDizdm1shYhh3YavhGLVoKOIZ9_0ME

autorun flashing script: https://mega.co.nz/#!gNggBJYC!kGzjnOpWQJs2PVr-sfY81CbM2BH-74jywoogUfqRcwA

the problem : http://terefrio.tuars.com/images/img2014102.jpg

is posible to reflash bootloader environment via scriptcmd ?

thanks for your time ,I hope someone take a look

sorry the bad english

[lautriv]

Looks like your WRONG firmware hangs somewhere after that output,
according to the script probably while loading uzImage.bin.

Put that SD out and reboot.

[Alexey Charkov]

On 27 Oct, 2014 9:28 pm, <ferva...@gmail.com> wrote:
>
> Hello, mi tablet is refused to install any firmware, is stuck on WMT Android 4.2 is ugrading ,nothing happens. anyonne had this problem?  i think i fuck up the bootloader or whatever its call
> My mistake was flash a root exploit made for 8550 based tablet(yes, i now.. i'm stupid) RootBurner_v0.1_MaPan
> http://www.xup.in/dl,18695027/RootBurner_v0.1_MaPan.zip/
>
> Tablet model :GT7301_HD_ZET6231_7ATC7055
>
> original Firmware: http://www.genesistab.com/drive/SK-Mtek.GT-7301.zip

Can't download this one, as it's a bit large for my current connection. What's the process you follow for flashing?

> fwc file : https://mega.co.nz/#!gcoxmCJA!26vA3KWms9vrpGDizdm1shYhh3YavhGLVoKOIZ9_0ME
>
> autorun flashing script:  https://mega.co.nz/#!gNggBJYC!kGzjnOpWQJs2PVr-sfY81CbM2BH-74jywoogUfqRcwA

Your script expects a kernel and a ramdisk image at a predefined path on the SD card - make sure you have those from the working firmware, not anything else. Looks like it fails to load the file.

Most likely, the 'installation' image is different from the 'running' image, but most of what you need should be achievable with an appropriate scriptcmd.

> is posible to reflash bootloader environment via scriptcmd ?

Yes, but you need a backup of working settings for your device.

Best,
Alexey

[ferva...@gmail.com]

what do you mean with backup of working settings ? all i have is a original seller firmware .the tablet doesn't boot into OS anymore and I can not reinstall firm either
thanks for response

[lautriv]

The usual workflow is to make a Backup, do changes as required
and copy data back as required because some changes may overwrite
personal data and other changes may fail at all.

This is described on ANY firmware change and even more important
if one chooses DIFFERENT firmware.

The actual question is, do you have any proper file meant for this machine ?

[ferva...@gmail.com]

This is the firmware that came with the tablet
http://www.genesistab.com/drive/SK-Mtek.GT-7301.zip
this firmware is provided for the oficial website of seller
this is what you ask for?

[lautriv]

-->came with the tablet <-.

so make an educated guess.

[Alexey Charkov]

Likely yes. But I can't download the file due to its size, so can't tell you for sure.

In order to be helpful, it should contain the following:
- U-boot environment image or settings themselves
- Kernel image (uzImage.bin) for your tablet
- Ramdisk image for your tablet
- Root and system partition images with Android files

If you have all of those in the archive, please describe what you are doing with them to let us determine where it fails. We can then recommend other ways.

Best,
Alexey

[lautriv]

Alexey,
i started to d/l and will check that before ;)
however the whole thing has nothing in common with this list ...

[ferva...@gmail.com]

the archive have all the thing you mentioned ,i put the folder FIRMWAREINSTALL in fresh formated Sd card , but don't pass of yellow word , is stuck in that part.
don't show up the typical "flash animation" whiht the WM logo in the top left corner and the flash progress bar
that firmware i'm sure it works ,because i flash this several times
i don't know what else to say
sorry bad english

[lautriv]

I gad a look on the said firmware and IF that is the right one it should work.
When you see "WMT Android4.2 upgrading ..." it is already about to load
uzImage.bin.

The load fails, if the checksum mismatches or the file is not readable.
The progress fails also when the uzImage is not meant for THIS machine.

To ensure all parts, use a known good SD-Card, freshly formatted with
fat32/0x0c and start over.

[ferva...@gmail.com]

i think i change the uzimage.bin flashing that "root exploit" i mention in my first post . and now can`t flash the original firmware(original uzimage) i guess..
but the u.bot seems fine (operational). so.. is posible to force the right uzimage? via script flash or something?

[lautriv]

If you use the mentioned download, it is the right uzImage.

[Alexey Charkov]

On 28 Oct, 2014 10:06 am, <ferva...@gmail.com> wrote:
>
> i think i change the uzimage.bin flashing that "root exploit" i mention in my first post . and now can`t flash the original firmware(original uzimage) i guess..
> but the u.bot seems fine (operational). so.. is posible to force the right uzimage? via script flash or something?

Yes. Please read on how to create scriptcmd's for u-boot (this was mentioned in this group several times, just search around a bit). The one you used does not seem to set all environment variables, so you need to re-create one.

Your scriptcmd should first set appropriate values for u-boot variables (with setenv and saveenv commands). Then you can try booting your kernel image directly from SD card. If it works, you can then write it to flash.

Please document your steps in a wiki as you go, so that other people could also use that information. Don't worry if it's a bit incomplete at the first try, we can always adjust.

[noxaete...@gmail.com]

I made the same thing I even used the same firmware as you and my tablet wont turn on.